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rewona [7]
3 years ago
13

Please help me! :^) I need help with #8. It says:

Mathematics
2 answers:
Aloiza [94]3 years ago
7 0

It's number C, because if you get the sum of the expressions you get the perimeter of 9a + 4b - 5.

Nimfa-mama [501]3 years ago
7 0
C. 8a,1a+3b and b-5
because
P=8a+1a+3b+b-5=9a+4b-5
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Can you very be kind and answer
Lera25 [3.4K]

area of a circle is PI x r^2

2 = d/2 = 5.4/2 = 2.7 cm

 using 3.14 for PI

3.14 x 2.7^2 = 22.89 square inches

360 degree in a circle, shaded area is 180 degree, which is 50%

 so 22.89 x .5 = 11.45 cm^2

4 0
3 years ago
Enter the y coordinate of the solution to this system of equations. <br> -2x+3y=-6<br> 5x-6y=15
julia-pushkina [17]
Y coordinate on solving both equations comes out to be 0
-2x+3y=-6
3y = -6+2x
put the value of 3y in equation 2nd
5x-2(-6+2x) =15
5x+12-4x = 15
x=3
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3y = -6+2*3 = -6+6 = 0
thus y = 0
7 0
3 years ago
20. What is the y-intercept of the line<br> y + 11 = -2(x + 1.5).
Vinvika [58]

Answer:

86

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Write out the steps in solving 3/4 x 2 2/5
max2010maxim [7]
3/4 × 2 2/5

Turn 2 2/5 into an improper fraction.

2 2/5 = (5 × 2) + 2 = 12

So, 2 2/5 = 12/5

So, our new question is : 3/4 × 12/5

Multiply the numerators (top numbers) with one another.

Numerators : (3 × 12) = 36

Multiply the denominators (bottom numbers) with one another.

Denominators : (4 × 5) = 20

So, our answer is 36/20

However, we need this to be a mixed number.

So, how many times does 20 go into 36? Once!

So, Multiply 20 with 1, and then subtract that number from 36! :)

20 × 1 = 20

36 - 20 = 16

So, our answer is :

1 16/20

Then, you simplify it once more.

Divide the numerator and denominator by 4.

16 ÷ 4 = 4

20 ÷ 4 = 5

So, our final answer is 1 4/5


~Hope I helped!~
7 0
3 years ago
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Jake is building a circular sandbox for his son. How many plastic blocks will he need to make one layer around the sandbox?
irakobra [83]

Answer:

35

Step-by-step explanation:

8 0
3 years ago
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