1 then “y” then 4 in that order

please help ASAP

Brainliest

**Answer:**

Check-mark the ones with the number 7

**Step-by-step explanation:**

How would you write (a-b)^5 without simplifying it?

The way we can write the expression (a - b)⁵ without simplifying is by using **Pascals' Triangle** to get; a⁵ + 5a⁴b + 10a³b² + 10a²b³ + 5ab⁴ + b⁵

**Pascal’s Triangle **is a method that is used to know the **binomial coefficients** of terms of binomial expression (x + y)ⁿ, where n can be any positive integer and x,y are real numbers.

For the expression (x + y)⁵, the coefficients are;

1, 5, 10, 10, 5, 1

According to the **binomial expansion**, the power of m will be decreasing while the power of 5 will be increasing as shown below. Thus;

(a - b)⁵ = (a + (-b))⁵ = a⁵ + 5a⁴b + 10a³b² + 10a²b³ + 5ab⁴ + b⁵

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How do I simplify???

1. [tex]i^{23}[/tex] = - **i**

2. [tex]\sqrt{-128}[/tex] **= 8i√2**

Steps to simplify complex numbers:

Write the division as a1. To simplify [tex]i^{23}[/tex]

We can rewrite [tex]i^{23}[/tex] as [tex](i^{4)^{5} } (i^{2} . i )[/tex]

write [tex]i^{4}[/tex] as [tex](i^{2} )^{2}[/tex]

[tex](i^{4)^{5} } (i^{2} . i )[/tex] = [tex]((i^{2} )^{2} )^{5} (i^{2} . i)[/tex]

we know [tex]i^{2}[/tex] = -1

((-1²))⁵ [tex](i^{2} .i)[/tex]

we know that -1² = 1

= 1⁵ [tex](i^{2} .i)[/tex]

= 1 [tex](i^{2} .i)[/tex]

= [tex](i^{2} .i)[/tex]

here [tex]i^{2}[/tex] =-1

-1 . [tex]i^{}[/tex]

= - **i**

**so **[tex]i^{23}[/tex]** is -i**

2. To **simplify **[tex]\sqrt{-128}[/tex]

= [tex]\sqrt{(- 1) . (128)}[/tex]

**= **[tex]\sqrt{-1}[/tex] x [tex]\sqrt{128}[/tex]

= [tex]\sqrt{-1}[/tex] x [tex]\sqrt{(2) . (64)}[/tex]

= [tex]\sqrt{-1}[/tex] x [tex]\sqrt{(2) . (8) . (8)}[/tex]

here [tex]}\sqrt{-1}[/tex] = **i**

substituting **i **we get

**= i . 8 √2**

**= 8i√2**

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How is it 840g plsss help!

**Step-by-step explanation:**

Let's say first piece is x. First and third ratio is 1:4 so it would be

4x - x = 360

3x = 360

x = 120 Third piece is 120g. Now we just multiply the rest.

2 × 120 = 240g

4 × 120 = 480g, total 840g

**Answer:**

840 g

**Step-by-step explanation:**

Ratio of weight of 3 pieces = 1 : 2 : 4

Weight of 3 pieces = x , 2x , 4x

Weight of third piece - weight of first piece = 360 g

4x - x = 360

3x = 360

**Divide **both sides by 3,

x = 360÷ 3

x = 120 g

Weight of first piece = x = 120 g

Weight of second piece = 2x = 2*120 = 240g

Weight of third piece = 4x = 4 *120 = 480 g

Weight of the whole cake = 120 + 240 + 480

= 840 g

[PLS HELP I’LL RATE BRAINLIEST] What is the measure of (5y+5)

**Answer:**

5y + 5 = 80

**Step-by-step explanation:**

5y + 5 +6y + 10 = 180 A straight angel is 180 Combine like terms

11y +15 = 180 Subtract 15 from both sides

11y = 165 Divide both sides by 11

y = 15 Substitute 15 in for y

5y + 5

5(15) + 5 = 80

**Answer:**

80 THIS TOOK ME SO LONG LOL

**Step-by-step explanation:**

Add all like terms together:

11y+15=180

And then subtract 15:

11y=165

Then Divide by 11:

y=15

Then you input the Y and solve:

5(15)+5

75+5

80

help asap pleaseee

What are the coordinates of the vertices of triangle A’B’C’ after a reflection across a line through point P with a y-intercept at y=-2, followed by a translation T<3,3>?

**Answer:**

Coordinate A would be (12,3)

Coordinate B would be (12,7)

Coordinate C would be (10,5)

a salesperson has found that the probability of a sale on a single contact is approximately .03. if the salesperson contacts 100 prospects, what is the approximate probability of making at least one sale?

The **probability **of making no sales in 100 tries is 0.97^100. That's equal to about 0.0476, so the probability of getting at least one sale is 0.9524. About 95%.

If the **probability **of making a sale is 0.03 then the probability of not making a sale must be 1-0.03 which is 0.97.

So looking at contacting 100 prospects, you could say there are two general **outcomes**. Either the salesman makes no sales at all, or he makes at least one sale. There are no other possible outcomes, so the probability of those two **outcomes **must add up to 1.

So the probability of making of at least one sale is 1 minus the probability of making no sales.

The probability of making no sales in 100 tries is 0.97^100. That's equal to about 0.0476, so the probability of getting at least one sale is 0.9524. About 95%.

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What is .. 9x-4 = 2x +3

**Answer:**

X=1

**Step-by-step explanation:**

9x -4 = 2x+3 :

9x-4=2x+3

9x -4 + 4= 2x + 3+4

Simplify

subtract 2x from both sides

Simplify

Divide both sides by the same factor

simplify

X=1

The answer to your question is X=1

Simplify 3(8a – 4b + 5)

Group of answer choices

24a – 4b + 5

11a – 4b + 5

11a – 7b + 8

24a – 12b + 15

Answer:

24a -12b + 15

Step-by-step explanation:

**Answer:**

=24a - 12b + 15

**Step-by-step explanation:**

3(8a-4b+5)

Apply the distributive law: m(a+b+c) = ma + mb + mc

3 (8a - 4b + 5 ) = 3 · 8a + 3( -4b)+ 3 · 5

= 3 · 8a + 3( - 4b) + 3 · 5

Simplify 3 · 8a + 3( -4b) + 3 · 5 : 24a - 12b + 15

= 24a - 12b + 15

Find an equation in the form y=mx + b

**Answer:**

**A) **[tex]y = \frac{1}{10}x + 28[/tex]

**B) **$116.5

**Step-by-step explanation:**

The data we are given is:

• for **440 minutes **of usage, the total cost is $72

• for **940 minutes **of usage, the total cost is $122

**A)**

In order to find an equation in the form [tex]y = mx + b[/tex], we must first express the given data as coordinates in the form [tex](x, y)[/tex].

We are told that [tex]x[/tex] is the number of monthly minutes, and [tex]y[/tex] is the total monthly fee. Therefore the first piece of data expressed as coordinates is **(440, 72)**, and for the second piece of data, it is **(940, 122)**.

Now that we have the coordinates, we can make an equation using the formula:

[tex]\boxed{\frac{y - y_1}{y_2 - y_1}= \frac{x - x_1}{x_2 - x_1}}[/tex],

where [tex](x_1, y_1)[/tex] is (440, 72) and [tex](x_2, y_2)[/tex] is (940, 122).

Substituting the values into the formula, we get:

[tex]\frac{y - 72}{122 - 72}= \frac{x - 440}{940 - 440}[/tex]

⇒ [tex]\frac{y - 72}{50} = \frac{x - 440}{500}[/tex]

⇒ [tex]50 \times \frac{y - 72}{50} =50 \times \frac{x - 440}{500}[/tex] [Multiplying both sides of the equation by 50]

⇒ [tex]y - 72 = \frac{x - 440}{10}[/tex]

⇒ [tex]10y - 720 = x - 440[/tex] [Multiplying both sides by 10]

⇒ [tex]10y = x +280[/tex] [Adding 720 to both sides]

⇒ [tex]y = \frac{1}{10}x + 28[/tex] **(Answer)**

**B)**

To find the total cost if 885 minutes are used, we have to **replace **[tex]x[/tex] in the above equation with **885**:

[tex]y = \frac{1}{10}(885) + 28[/tex]

⇒ [tex]y = 88.5 + 28[/tex]

⇒ [tex]y = 116.5[/tex]

Therefore, the total cost will be **$116.5**. **(Answer)**

at eaton centre, let us imagine that $60 was spent on four shirts. how could we determine the average cost of each shirt?

**Answer: 60 divided by 4**

**Step-by-step explanation:**

**Answer:**

The average would be $15 for each shirt.

**Step-by-step explanation:**

divide the amount of money by the amount of shirts.

Please do this for me .I need it as soon as possible

Note:This is grade 6 maths

**Answer:**

**Answer:**

9 [tex]\frac{3}{4}[/tex]

13[tex]\frac{2}{3}[/tex]

3[tex]\frac{4}{6}[/tex] or 3 [tex]\frac{2}{3}[/tex] simplified

**Step-by-step explanation:**

For the fraction part, could how many total spaces between the numbers then count how many spaced over to the pointer.

For #16, there are 4 spaced between 9 and 10. The pointer is pointing to 3 spaces from 9 so the fraction is 3/4.

For #18, there are 6 spaces and the pointer is at the 4th space. You can see that if you counted every 2 spaces as I unit, you would have a total of 3 spaces and the pointer is over 2 of those three spaces. That would get your simplified answer of 2/3.

Filling and Emptying Tanks

1) Tank B, which initially contained 80 liters of water, is being drained at a rate of 2.5 liters

per minute. How many liters of water remain in the tank after the following amounts of

time?

a) 30 seconds

c) t minutes

b) 7 minutes

c) 18 liters

2) For how many minutes, t, has the water been draining when Tank B contains the

following amounts of water?

a) 75 liters

Period: 6

b) 32.5 liters

d) v liters

**Answer: **

**a) 78.75**

**b) 62.5**

**a) 2 minutes**

**b) 19 minutes**

**c) 24 minutes and 48 seconds**

This question is worth 2 extra credit points. You do not have to complete it if you do notwant to.EXm4 ---> possible beginning ---->2or ------>ma . m2 or ----->(m2)Give a possible beginning to the following expression. (see example above)moHTML EditoreВ

[tex]r^6=\frac{r^{10}}{r^4}=(r^2)^3=r^4\cdot r^2^{}[/tex]

Under her cell phone plan, Salma pays a flat cost of $55 per month and $5 per gigabyte. She wants to keep her bill under $75 per month. Use the drop-down menu below to write an inequality representing gg, the number of gigabytes she can use while staying within her budget.

69. Is it ok to have you in your room or something to say hello there per month

A warehouse is 64 yards long, 28 yards wide, and 8 yards high. What is the area of the warehouse floor? If the warehouse is filled to half its height with tightly packed boxes, what is the volume of the boxes?

The volume should be **7****1****6****8**** ****yards**

The area for the floor should be **1****4****,****3****3****6**** ****yards**

Warehouse details:

64 yds long

28 yds wide

8 yds high

---------------------------------------------------------------------------------------

What is the area of the warehouse floor?

the base of the warehouse is 64*28

which is **1792** yds squared

**1792 yards squared**

If the warehouse is filled to half its height with tightly packed boxes, what is the volume of the boxes?

half the height of the warehouse is 8/2=

4 yards

the volue of half the warehouse is

1792 * 4 = **7168 **yds squared

I'm not quite sure how they want me to answer this but this is all that I got

(this part below can't be trusted)

either the boxes can be 1x1x1 which means 7168 boxes will fit

either the boxes can be 2x2x2 which means 896 boxes will fit

either the boxes can be 3x3x3 which means 265.481481 boxes will fit, which is definetly not it because they said "filled...tightly packed boxes".

plus, we don't know if the boxes are square or rectangle so I'm not sure

Image to problem- https://postimg.cc/G8VnJLTq

**Coplanar lines** are referred to as parallel lines because they may be extended indefinitely without ever intersecting. || is the **sign **meaning "**parallel to**." If two lines are drawn, they don't have to be** parallel**, and a third line runs across them as seen in the diagram below. We may obtain eight distinct angles by drawing two parallel lines, and then drawing a **transverse line **through them.

Four pairs of matching **angles** will be created from all eight angles. One of the pairings is represented by angles F and B in the preceding diagram. If the two lines are parallel, corresponding angles are **congruent**.

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Can you please help with with this?

Thanks

**Answer:**

slope is 3

**Step-by-step explanation:**

8-5/-2-(-3)=3/1=3 3 is the slope

What is 6/7 of 2/3 ? PLEASEE HELPPP-

**Answer:**

4/7

**Step-by-step explanation:**

6/7 of 2/3

= 6/7 * 2/3

= 12/21

= 4/7

What is the answer please…

**Answer:**

answer is T 25............

A normally distributed data set of 600 values has a mean of18.5 and a standard deviation of 3.25.What is the approximate number of values in the dataset expected to be 22 or greater?

Note the in such type of questions the term 'probability' and 'proportion' can be used in place of each other. It is because the probability gives the proportion of favorable outcomes to the total outcomes.

Let X be the random variable representing the number of data points greater than or equal to 22.

Given that the mean and standard deviation is 18.5 and 3.25, respectively.

Consider the formula for z-score as,

[tex]z=\frac{x-\mu}{\sigma}[/tex]So the probability is calculated as,

[tex]\begin{gathered} P(X\ge22)=P(z\ge\frac{22-18.5}{3.25}) \\ P(X\ge22)=P(z\ge1.08) \\ P(X\ge22)=P(z\ge0)-P(0\leq z\leq1.08) \\ P(X\ge22)=0.5-\emptyset(1.08) \end{gathered}[/tex]From the Standard Normal Distribution Table,

[tex]\emptyset(1.08)=0.3599[/tex]Substitute this value,

[tex]\begin{gathered} P(X\ge22)=0.5-0.3599 \\ P(X\ge22)=0.1401 \end{gathered}[/tex]Thus, there is 0.1401 or 14.01% probability that a data will be greater than or equal to 22.

So, **the 14.01% of the data is expected to be 22 or greater**.

just need 8 thanks..

**Answer:**

8a)

D: [tex]1\leq x\leq 3[/tex].

R: [tex]0\leq y\leq 4[/tex]

8b)

D: [tex]x\geq 0[/tex]

R: [tex]y\geq 1[/tex]

**Step-by-step explanation:**

8a) The domain is the set of all possible numbers the x values could be. If there is no corresponding y value for an x value, that x value would not be considered part of the domain.

In the question, the function starts at x = 1 and continues until 3. The ends of the function are closed, so it is inclusive. This can be written as [tex]1\leq x\leq 3[/tex].

The range is all the possible y values. The function does not go below y = 0 and has a maximum of 4. The ends of the function are closed, so it is inclusive. This can be written as [tex]0\leq y\leq 4[/tex]

8b) We can do the same for this problem. The x has a minimum at 0 and continues to go on without an upper bound(as indicated by the arrow), is also includes the point where x=0. Therefore, the domain can be written as [tex]x\geq 0[/tex].

As for the range, the y minimum is 1 and the function continues to increase as shown by the upwards slope and arrow. The function also includes the point where y=1, so it can written as [tex]y\geq 1[/tex]

Anton picks corn at a local farm. He is paid 80 cents per bushel for the first 50 bushels, 90 cents per bushel for the next 50 bushels, and 95 cents per

bushel for all bushels picked over 100.

Determine how much Anton would earn if "x" is 128 bushels. $

First 50 bushels: 0.80 x 50 = 40

Next 50 bushels: 0.90 x 50 = 45

Remaining bushels: 0.95 x 28 = 26.6

$40 + $45 + $26.6 = $111.6

Next 50 bushels: 0.90 x 50 = 45

Remaining bushels: 0.95 x 28 = 26.6

$40 + $45 + $26.6 = $111.6

Anton would earn $111.6 if "x" is 128 **bushels**.

An equation is an **expression **that shows the relationship between two or more numbers and variables.

A mathematical equation is a statement with two equal sides and an equal sign in between. An **equation **is, for instance, 4 + 6 = 10. Both 4 + 6 and 10 can be seen on the left and right sides of the equal sign, respectively.

We are given that **Anton **picks corn at a local farm.

Anton is paid 80 cents per bushel for the first 50 bushels, 90 cents per bushel for the next 50 bushels, and 95 **cents **per bushel for all bushels picked over 100.

Thus, First 50 **bushels**: 0.80 x 50 = 40

Next 50 bushels: 0.90 x 50 = 45

Remaining bushels: 0.95 x 28 = 26.6

**Total **= $40 + $45 + $26.6 = $111.6

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The linear model represents the height, f(x), of a water balloon thrown off the roof of a building over time, x, measured in seconds. Use the constraints of the real-world situation to predict the height of the water balloon at 15 seconds. Use complete sentences to support your answer.

From the **linear model** we can see that the height of the balloon after 15 seconds is 0 feet.

Depending on the context, the phrase "**linear model**" is used differently in statistics.

From the **linear model** we can see that the water balloon is thrown from a height of 40 feet upwards.

Now the balloon reaches a height of 70 feet and then falls back down on earth due to **gravity**.

At about 10 seconds the balloon falls on the ground and splashes.

Hence for further time the balloon is always at the ground.

Therefore at time of 15 seconds the height of the balloon is always 0 feet as represented in the **linear model.**

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A new health drink has 130% of the recommended daily allowance (RDA) for a certain vitamin. The RDA for this vitamin is 45 mg. How many milligrams of the vitamin are in the drink?

In the **drink** , there are 58.5 milligrams of **vitamin** .

In the question ,

it is given that

the **recommended **daily allowance for a certain vitamin is = 45 mg

we have to find the quantity of the vitamin in **the drink** ,

also given that the amount of vitamin that the new drink has is = 130% of **RDA** ,

on substituting the value of recommended **daily allowance** ,

we get

amount of **vitamin** in the drink is = 130% × 45

= 1.3 × 45 ... because 130% = 1.3

= 58.5 mg

Therefore , the **drink** has **58.5 milligrams** of the vitamin .

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Nina can ride her bike 63,360 feet in 3,400 seconds, and Sophia can ride her bike 10 miles in 1 hour. What is Nina’s rate miles per hour if there are 5,280 feet in a mile?

Which girl bikes faster?

We know that

3600 seconds = 1 hour

Then

3400 seconds = 3400/3600

= 17/18 hours

5280 feet = 1 mile

Then

63360 feet = 63360/5280 mile

= 12 mile

© 239 # 4.7

So

Distance covered by Nina in 17/18 hours = 12 mile

Then

Distance covered by Nina in 1 hour = 12/(17/18)

miles

= 12.71 miles.

From the above deduction, we can conclude that the speed of Nina is 12.71 miles per hour.

Speed of Sophia is 10 miles per hour. So Nina is the girl that rides at a faster speed.

3600 seconds = 1 hour

Then

3400 seconds = 3400/3600

= 17/18 hours

5280 feet = 1 mile

Then

63360 feet = 63360/5280 mile

= 12 mile

© 239 # 4.7

So

Distance covered by Nina in 17/18 hours = 12 mile

Then

Distance covered by Nina in 1 hour = 12/(17/18)

miles

= 12.71 miles.

From the above deduction, we can conclude that the speed of Nina is 12.71 miles per hour.

Speed of Sophia is 10 miles per hour. So Nina is the girl that rides at a faster speed.

CAN SOMEONE HELP

BD//EF, BF//DE

AB=8cm BC=12cm

x=?

The value of** x is 4.8cm.**

Here BD // EF and BF // DE

So from this, we have ∠ABF = ∠EFC

Let's take two triangles **ΔABC and ΔFCE**

∠C =∠C (common angle)

∠ABC = ∠EFC

**So ΔABC ≅ ΔEFC**

So ∠BAC = ∠FEC

AB/ EF = BC/ FC

AB = 8cm, EF =x, BC = 12cm, FC= 12-x

8/x = 12/ 12-x

2/x = 3/ 12-x

24 - 2x = 3x

5x = 24

x = 4.8cm

Therefore the value of** x is 4.8cm.**

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Solve 3(2m + 1) − 3m = −12. m = −5 m equals negative 13 over 3 m equals negative 15 over 6 m = −0.33

The **value** of m from the given **equation** is -5. Therefore, option A is the correct answer.

The given equation is 3(2m+1)-3m=-12.

What is an equation?In mathematics, an **equation** is a formula that expresses the **equality** of **two expressions,** by connecting them with the equals sign =.

A general rule for equation solving:

Remove parentheses from each side of the equation and combine similar phrases to make it simpler.To separate the variable term on one side of the equation, use addition or subtraction.To find the variable, use division or multiplication.The given **equation** can be solved as follows:

6m+3-3m=-12

⇒ 3m+3=-12 (Subtract the like terms)

⇒ 3m=-12-3 (Transpose 3 to other side of the equation)

⇒ 3m=-15

⇒ m=-15/3 (Transpose 3 to other side of the equation)

⇒ m=-5

The **value** of m from the given **equation** is -5. Therefore, option A is the correct answer.

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**Answer:**

m=-5

**Step-by-step explanation:**

Write 56% as a fraction in simplest form.

**Answer:**

[tex]\frac{14}{25}[/tex]

**Step-by-step explanation:**

per cent means 'out of 100 ' , then

56%

= [tex]\frac{56}{100}[/tex] ( divide numerator/ denominator by 4 )

= [tex]\frac{14}{25}[/tex] ← in simplest form

about 5% of americans have blue eyes. suppose 3 people are selected at random from the us population. what is the probability that all 3 have blue eyes?

If about 5% of americans have blue eyes, the **probability of 3 people** selected at random having blue eyes is 1/8000.

About 5% of americans have blue eyes

The **probability** of a person having blue eyes = 5% = 5/100

Eyes colour of a person is an **indepedent event**, which means the eye colour of one individual is independent of the other. The probability of one individual having blue eyes or not is independent of another person.

In case of independent event the probability of A intersection B = probability of A multiplied with probability of B

**P(A∩B) = P(A) x P(B)**

P(A∩B∩C) = P(A) x P(B) x P(C)

The probability that all 3 have blue eyes = 5/100 x 5/100 x 5/100

= 125/1000000

= 1/8000

Therefore, if about 5% of americans have blue eyes, the **probability** of 3 people selected at random having blue eyes is 1/8000.

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Which number line shows the points 125 and 2.8? A. Alternative Text B. Alternative Text C. Alternative Text D. Alternative Text
How much energy would it take to heat a section of the cooper tubing that weighs about 650.0g, from 15.83C to 24.11C
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A bag contains 120 marbles. Some are red and the rest are black. There are 19 red marbles for every black marble. How many red marbles are in the bag?A bag contains 120 marbles. Some are red and the rest are black. There are 19 red marbles for every black marble. How many red marbles are in the bag?
What communication tradition emerged in the time of Plato and Aristotle?O StyleO ListeningO EthicsO Rhetoric
3y+2x=-1 solve for x
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Which of the following equations are equivalent? Select three options.2 + x = 5x + 1 = 49 + x = 6x + (negative 4) = 7Negative 5 + x = negative 2