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V125BC [204]
3 years ago
13

Please help me out!!

Mathematics
1 answer:
Vilka [71]3 years ago
7 0
The answers are a=8 and b=2

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Please someone help me I need the right answer just tell me the right answer please
Zinaida [17]

Answer: (D)

Step-by-step explanation:

Let 8/9=x/12

9*x=12*8

9x=96

x=10.7

3 0
3 years ago
I need help please!!
Harrizon [31]
I'll do 1 and 8, and you should then be able to do 2 and 9!

For 1, we can multiply these separately  - 3*4*9=108 and 5+7+2=13 (exponent multiplication is adding them!), so we have 108b^13

For 8, we can again add the exponents up to get (5/7)^8
3 0
3 years ago
Find the total thickness of two pieces of wood that a carpenter glued together if one is 5/16 inch thick and the other is 7/8 in
MrRa [10]

the answer is

5/16 + 7/8=  

5/16 +14/16=  

19/16 = 1 3/16 in.

hope this helps

7 0
3 years ago
Read 2 more answers
13. Find the surface area of each figure to the nearest tenth. Show your work.
stiv31 [10]
A. The figure is a triangular pyramid. You can findits surface area by adding up the area of the three faces of the triangle and the area of the base. A derived formula also is used where the SA is equal to 12 times the perimeter of base times the slant height, added to that is the area of the base. The area of the square base is s^2. Its perimeter is 4s.

SA of Pyramid = 12*P*l + s^2
SA of Pyramid = 12*4s*l + 16^2
SA of Pyramid = 12*4(16)*(17) + (16)^2
SA of Pyramid = 11,008 square inches

b.) The formula for the SA of a cone is: 

SA of cone = πr[r+√(h^2+r^2)]
SA of cone = π(3)[(3+√(8^2+3^2)]
SA of cone = 108.8 square inches
7 0
3 years ago
Read 2 more answers
Triangle ABC has the following angle measures:
s2008m [1.1K]

The measure of angle A in the triangle is 18°

<h3>How to determine the measure of angle A?</h3>

The angles in the triangle are given as:

m∠A = (2x − 24)°, m∠B = (x + 8)°, m∠C = (4x + 49)°

The sum of angles in a triangle is 180

So, we have

m∠A + m∠B + m∠C = 180

Substitute the known values in the above equation

So, we have:

2x − 24 + x + 8 + 4x + 49 = 180

Evaluate the like terms

7x = 147

Divide both sides by 7

x = 21

Substitute x = 21 in m∠A = (2x − 24)°

m∠A = (2 * 21 − 24)°

Evaluate

m∠A = 18°

Hence, the measure of angle A in the triangle is 18°

Read more about triangles at:

brainly.com/question/1675117

#SPJ1

8 0
2 years ago
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