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Rzqust [24]
3 years ago
12

What is the answer to number 7b?

Mathematics
1 answer:
Semmy [17]3 years ago
4 0
Increasing it by 10% will be 11.55. To find teen percent all you do is make it a decimal then multiplying it by 10.50
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HELP PLEASE!! i need help on A and B. PLEASE DONT ANSWER IF YOU DONT KNOW!!
alexandr1967 [171]
A.
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4 0
2 years ago
PLEASE HELP...........
Vlad [161]

Answer: Just do 2355

Step-by-step explanation: its that

7 0
2 years ago
Read 2 more answers
Two spheres have radii 6 and 15. Find the ratios of the areas and the volumes.
lina2011 [118]

Answer:

1st sphere has r1 = 6

=> Surface area S1 = 4 x pi x r1^2 = 4 x pi x 6^2 = 144pi

=> Volume V1 = (4/3) x pi x r1^3 = (4/3) x pi x 6^3 =288pi

2nd sphere has r1 = 15

=> Surface area S1 = 4 x pi x r1^2 = 4 x pi x 15^2 = 900pi

=> Volume V1 = (4/3) x pi x r1^3 = (4/3) x pi x 15^3 =4500pi

=> S1/S2 = 144pi/900pi = 0.16

=> V1/V2 = 288pi/4500pi = 0.064

Hope this helps!

:)

4 0
3 years ago
FAST PLEASE 29 POINTS The diagram below is divided into equal parts. Which ratio correctly compares the number of shaded section
strojnjashka [21]

Its only 15 points? And the answer is 1/2 because if u had the thing and there was 4 part but u eat 8 part it doesnt make sence so its 1/2

7 0
2 years ago
PLEASE PLEASE HELP ME WILL AWARD BRAINLIEST
WITCHER [35]

Answer:

So the three new vertices are (0,0)  , (-1,-0) , and (-1,3)

Step-by-step explanation:

So let's pick a point on the triangle like (-3,-1).

The center point of dilation is (3,1).  The horizontal distance that (3,1) is from (-3,-1) is 3-(-3)=6. The scale factor is 0.5 so multiply 0.5 to the horizontal distance which is 3. The vertical distance that (-3,-1) is from (3,1) is 1-(-1)=2. The scale factor is 0.5 so multiply 2 and 0.5 giving you 1.

So this means the image of the point (-3,-1) is going to be at: starting from center (3,1) move left 3 and down 1 and you are at (0,0).

Or if you prefer just use a formula

(k(x-a)+a,k(y-b)+b)

(x,y) is a point on the triangle

(a,b) is the center=(3,1)

k is the scale factor=.5

So let's do this formula to the other two points...

(x,y)=(-5,-1)

(.5(-5-3)+3,.5(-1-1)+1)

(.5(-8)+3,.5(-2)+1)

(-4+3,-1+1)

(-1,0)

Last point (x,y)=(-5,5)

(.5(-5-3)+3,.5(5-1)+1)

(.5(-8)+3,.5(4)+1)

(-1,3)

So the three new vertices are (0,0)  , (-1,-0) , and (-1,3)

7 0
2 years ago
Read 2 more answers
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