Answer:
6.4 x 10²
Step-by-step explanation:
1st step: divide 5.76 by 9 which is .64
2nd step: 10^7÷10^4 = 10^7-4 or 10³
Morgan correctly answered 90% of the questions on her history test. She answered 36 questions correctly How many questions were on the test?
(A)33
(B)40
(C)48
(D) 126
Answer:
(B)40
Step-by-step explanation:
use the mark given and divide it by 90 percent take the answer given and multiply it by one hundred
Answer:
B) 40
Step-by-step explanation:
If 90% = 36
100% = ?
Cross Multiplying
100 x 36/ 90 = 40
which means there were 40 Questions on the test.
Simplify the expression to a polynomial in standard form:
(3x − 2)(x^2 – 2x + 1)
Answer:
The polynomial in the standard form of this expression would be [tex]3x^3-8x^2+7x-2[/tex].
Step-by-step explanation:
If you are trying to expand a binomial multiplied by a trinomial, you need to multiply each term from the binomial to each term in the trinomial. In this case, [tex](3x-2)(x^2-2x+1)=3x^3-6x^2+3x-2x^2+4x-2=3x^3-8x^2+7x-2[/tex], so that will be the answer.
Can someone prove 1+cosx/1+secx=cosx
with all the steps included?
Please and thank you.
Answer:
Proved , since LHS= RHS
Step-by-step explanation:
We need to prove the given expression ,
=> 1 + cos x / 1 + sec x = cos x
Simplifying LHS.=> 1 + cos (x) / 1 + sec (x)
=> 1 + cos (x) / 1 + 1/cos (x)
=> 1 + cos (x) ÷ 1 + cos(x) / cos (x)
=> 1 + cos (x) × cos(x) / { 1 + cos (x) }
1 + cos (x) gets cancelled . So we are finally left out with ,=> cos (x)
= RHS
Hence proved !HELP PLS PLS IM BEGGING
Answer:
to every 3 buckets with a shovel there is 4 buckets without a shovel
don bought the bookshelf for 42 dollars this was 3/4 of the regular price
Answer:
Regular Price = $56
Step-by-step explanation:
3/4 x = 42
42/3 * 4 = x
14 * 4 = 56
x - 56
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
A tv costs £1300. Work out the price after a 4.2% price increase.
Answer:
HII
1
Step-by-step explanation:
Tori drew a scale drawing of a picnic area near the river. The scale she used was 1 inch : 2 yards. If the picnic area is 47 inches wide in the drawing, how wide is the actual picnic area?
Answer:
94 yards
Step-by-step explanation:
2x47=94
What is AB?
12
C
35
AB =
Answer:
37
Step-by-step explanation:
the equation is /a^2 + b^2 =c
so 12^2=144 and 35^2=1225
144+1225=1413
the square root of 1413 is equal to 37
The surface area of a figure is 62 cm^2. If the dimensions are multiplied by 4, what will be the surface area of the new figure?
Answer:
248 cm
Step-by-step explanation:
62×4=248
62+62=124+64=186+64=248 cm
For triangle DEF, the length of side e and the measures of angles D and F are known. What method should be used to start solving triangle DEF?
A.law of sines
B.both laws can be used
C.neither law can be used
D.law of cosines
Answer: D. Law Of Cosines
Step-by-step explanation: A law in trigonometry: the square of a side of a plane triangle equals the sum of the squares of the remaining sides minus twice the product of those sides and the cosine of the angle between them.
Note: Answer is confirmed by Buzz/Acceleration Education.
All My Other Answers:
https://brainly.com/app/profile/13253466/answers
The sum of the interior angle of the triangle is 180 degrees. Then by the sine rule, angle E can be determined. Then the correct option is A.
What is trigonometry?Trigonometry deals with the relationship between the sides and angles of a right-angle triangle.
For triangle DEF, the length of side e and the measures of angles D and F are known.
We know that the sum of the interior angle of the triangle is 180 degrees. Then the angle E can be determined.
Hence the sine rule is easy to apply.
More about the trigonometry link is given below.
https://brainly.com/question/22698523
#SPJ2
Which is the perimeter of the shape? (1 point)
Answer:
22
Step-by-step explanation:
4 x 2 + 7 x 2 = 22
Answer: 22
Step-by-step explanation:
to find perimeter you have to add up all the sides around a shape.
7 + 7 + 4 + 4 = 22
OR
7+7= 14
4 + 4 = 8
14 + 8 = 22
Find you equation of the line shown
Answer:
y=x+6
Step-by-step explanation:
(0,6). y=mx+b or 6=1 × 0+b, or solving for b: b=6-(1)(0). b=6.
(1,7). y=mx+b or 7=1 × 1+b, or solving for b: b=7-(1)(1). b=6.
I inputted two points from the graph and solved them.
Hence the equation would be y=x+6
Answer:
y= x + 6
Step-by-step explanation:
For here we are looking for y= mx +b.
For the slope, It is y= 4/4.
That can be simplified into 1x or x.
Then look at where it contacts the y axis. It is at six. Plug all that in to get
y= x + 6
hope this helps!!
please help me rn!! no links!
Answer:
D
Step-by-step explanation:
The electrical resistance of a wire is directly proportional to its length.
A wire of length 10 feet has a resistance of 2 ohms.
ment
Part A
What is the resistance of a wire if its length is 25 feet?
20 ohms
6 ohms
50 ohms
5 ohms
10 ohms
ig
Part B
What is the length of a wire if its resistance is 8 ohms?
A
48 ft
4 ft
1.6 ft
32 ft
40 ft
Answer:
https://www.arlingtonschools.org/cms/lib/NY02215626/Centricity/Domain/5167/Skill39AK.pdf
Step-by-step explanation:
Stephanie borrowed $4,500 at a simple interest rate of 3.5% to buy a motorcycle. How much interest did she have to pay if the loan was taken out for 3 years?
C
Step-by-step explanation:
hope this helps
True or False: When a preimage rotates 1/4
around an origin, the rotation is a 180 degree
turn.
Answer:
True :)
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
got it right
Classify this triangle by its sides.
Step-by-step explanation:
The answer is scalene triangle
Answer:
scalene
Step-by-step explanation:
all the sides of a scalene triangle have different lengths, as shown in the picture :)
Find the zeros of the function. Enter the solutions from least to greatest. f (x)=(x -3)(2x -8)f(x)=(x−3)(2x−8)f, left parenthesis, x, right parenthesis, equals, left parenthesis, x, minus, 3, right parenthesis, left parenthesis, 2, x, minus, 8, right parenthesis \text{lesser }x =lesser x=start text, l, e, s, s, e, r, space, end text, x, equals \text{greater } x =greater x=start text, g, r, e, a, t, e, r, space, end text, x, equals
Answer:
Step-by-step explanation:
The zeros are the values of x for which f(x) = 0.
f(x) = (x-3)(2x-8) = 0
x = 3, 4
please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!! NO SCAM LINKS !!!!!!!!!!!!!!!!!!
Answer:
115
Step-by-step explanation:
180-65=115
the whole triangle is 180 degrees so subtract 65 degrees from it
Someone please help me in this please.
Answer:
for the number 13
Step-by-step explanation:
[tex]x = \sqrt{9 { }^ {2} + 6 { }^{2} }[/tex]
by Pythagoras theorem
x= √81+36
x= √117
punch square root of 117 with a calculator, I don't have one now
PLEASE HELP 35 POINTS
Find the value of x in the triangle shown below.
Answer:
a
Step-by-step explanation:
Answer:
b is the answer
Step-by-step explanation:
b= 4.123..
PLS HELP ASAP
In how many ways can a starting team of 5 players be chosen from a team of 14 players?
Answer:
So are we doing permutations
Step-by-step explanation:
P(14,5)14*13*12*11*10
There are 240,240 ways to order the team.
There are 240 ways a starting team of 5 players can be chosen from a team of 14 players.
What are permutations?The different arrangements which can be made out of a given number of objects by taking out some or all at a time are called permutations.
Suppose there are n items.
Suppose we have
[tex]i_1, i_2, ..., i_k[/tex]
sized groups of identical items.
Then the permutations of their arrangements is given as
[tex]\dfrac{n!}{i_1! \times i_2! \times ... \times i_k!}[/tex]
P(14,5) = 14 x 13 x 12 x 11 x 10
= 240
There are 240 ways to order a team of 14 players.
Learn more about permutations here:
https://brainly.com/question/16107928
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A disinfectant spray bottle says it eliminates 90% of bacteria with each application. You apply the disinfectant once to a countertop in the shipping department and then apply the disinfectant again to the same countertop. If the bottle is correct, what percentage of the bacteria originally on the tabletop have been eliminated?
81%
90.09%
90.9%
99%
180%
Does anyone know how to solve this?
Answer:
17 meters
Step-by-step explanation:
Plug x=30 into the equation H(x) = 11 + 0.2x
H(30) = 11 + 0.2 * 30
H(30) = 11 + 6
H(30) = 17
Thus, the answer is 17 meters.
find the surface area.
Answer:
solution given:
For triangle
side1=9ft
side2=10ft
base[b]=11ft
height[h]=7.7ft
and for rectangle
length [l]=3ft
wide [w]=9ft
Now
total surface area=lateral surface area +2curved surface area
=perimeter of triangle×length +2area of triangle
=(9+10+11)×3+2×1/2×2(½×b*h)
=90+11×7.7
=174.7
=175ft²is a required answer.
Jill and John each had a candy bar. Jill at ¾ of the candy bar and John at 3/8 of his candy bar. Who ate the most?
Answer:
John
Step-by-step explanation:
3/4 > 3/8
3/4 = 6/8
6/8 > 3/8
Two geometry questions in the attached photos - If I have a line, do I have a plane? & If I have three points, do I always have a plane?
Answer:
18) A: only if you have an additional point not on the line.
19) D: No, because all the points may be on the same line.
Step-by-step explanation:
There are basically 4 ways we can determine a plane and they are;
- When we have three non - collinear points: What this means is that if we have three points that are not on one line, then it means that only one particular plane can pass through those points.
- When we have a line and a point that's not on the line
- When we have two lines that intersect each other.
- When we have two lines that are parallel to each other.
From the four conditions above, we can now answer the question;
18) You can only have a plane if there is an additional point not on the line.
Option A
19) Having just three points may not always be sufficient to have a plane because it's possible that the three points may be on the same line which is not a condition for a plane. Thus, option D is correct.
Which statements about the triangles are correct? Select TWO answer choices that apply.
A
Triangle P is similar to triangle Q.
B
Triangle P is a reflection and rotation of triangle Q.
C
Triangle P is congruent to triangle Q.
D
Triangle P is a reflection and a dilation of triangle Q.
E
Triangle P is a dilation and a 180° rotation of triangle Q.
Find the missing dimension of the triangle. Area =14ft^2, height =6ft, base= ? Find the base.
Answer: b = 14/3 = 4.667 feet
The decimal value is approximate. In reality the 6's go on forever. Round that however you need to.
================================================
Work Shown:
b = unknown base
h = height = 6 ft
A = area = 14 sq ft
A = b*h/2
14 = b*6/2
14 = b*3
14 = 3b
3b = 14
b = 14/3
This approximates to 14/3 = 4.667 ft
A polygon has vertices at (4, 1), (4,7), (10, 7) and (10, 1). How does the perimeter of
the polygon change if each coordinate is multiplied by 3?
The perimeter goes from 24 to 72
24*3 = 72
==========================================================
Explanation:
I recommend plotting the four points on the same xy grid system. Connect the points with segments to form a rectangle. This rectangle is also a square. You should find that each side of the square is 6 units long, so the perimeter is 4*6 = 24 units.
If we multiply each coordinate by 3, then that will make each side length 3 times longer than before. That means each side is now 6*3 = 18 units long. The perimeter is 4*18 = 72 units.
Note how the jump from 24 to 72 is "times 3". Therefore, the scale factor of 3 will make the new perimeter 3 times longer compared to the old perimeter.