MATHEMATICS HIGH SCHOOL

Eric sells shirts. It costs him $100 to buy all the shirts and $10, total, to print designs on them. Eric sells each shirt for $4. So far he has sold 20 shirts. He uses the equation y = 4x - 110 to calculate his profit. What is the constant in Eric’s equation?
A) 4
B) -10
C) 20
D) -110

Answers

Answer 1
Answer: C) 20 is the constant. He can plug in the 20 into the value of x (shirts sold) to solve for y (profit).

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Which is greater 2/3 or 2/6
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Find the equation of the circle whose center and radius are given.center ( 5, 6), radius = 3

10(x+3)=9
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Answers

divide both sides by 10
x+3=0.9
minus 3
x=2.1
Solutions 

Divide both sides by 10

x+3=9 / 10

Subtract 3 from both sides

x=9 / 10 −3

 Simplify 9 / 10 −3 to −21 / 10

x=−21 / 10


Decimal = -2.1

What is the volume of a four- sided pyramid with base edge of 5 ft and h = 4 ft.

Answers

V = (5^(2) * 4)/3 = 100/3;

Answer:

da

Step-by-step explanation:

Please simplify

5×3−8÷2×3

Answers

The answer would be 3! You can find this using PEMDAs, aka order of operations. Hope this helps!!

Answer:

Use PEMDAS

Step-by-step explanation:

answer is 7/6 i think

i am not 100% sure

What’s the answer for this

Answers

To find an area of a square you do Length x width
= 9km

Answer:

A=lw

A=3×3

A=9

Explanation

  • all sides of a square are the same

If parallelogram JKLM is rotated 270 clockwise around the origin, what are the coordinates of the endpoints of the side congruent to side JM in the imagine parallelogram?

Answers

Answer:

Step-by-step explanation:

I think you missed attaching the photo of the parallelogram JKLM  and here it is in my answer

When rotating a point 270° clockwise or 90°clockwise around the origin, we apply the rule (x, y) → (-y, x).

Look at the photo, we can see the coordinate of the point

  • J (-6, 2)  
  • M = (-5, -1)

So apply the rule, after the rotation, the new co-ordinates will be:

  • J = (-2, -6)
  • M = (1, -5)

Answer: A j(-2, -6) and M(1,-5)

Step-by-step explanation:

Solve the triangle.a equals 60 b equals 22 c equals 50
whoever answers right in the next five minutes get the brainiest thing

Answers

∠A = 106.3°, ∠B = 20.6°, ∠C = 53.1°

Step-by-step explanation:

In a ΔABC, the sides opposite to the angle A is a, angle B is b, and angle C is c. a = 60 , b= 22, c = 50

We can find any one angle by cosine rule,

a² = b² + c² - 2 bc cos (A)

60² = 22² + 50² - 2(22)(50) cos A

3600 = 484 + 2500 - 2200 cos A

3600 = 2984 - 2200 cos A

3600 - 2984 = -2200 cos A

616 = -2200 cos A

cos A = 616/ -2200 = -0.28

A = cos⁻¹ (-0.28) = 106.3°

Now we can use sine rule to find angle B as,

sin A/ a = sin B / b

sin  106.3° / 60 = sin B / 22

sin B = 22 × sin  106.3° / 60

 B = sin⁻¹ (22 × sin  106.3° / 60 ) = 20.6°

As we know the sum of angles in a triangle is 180°.

∠A + ∠B + ∠C = 180°

106.3° + 20.6° + ∠C = 180°

126.9° + ∠C = 180°

∠C = 180° - 126.9° = 53.1°
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