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Anuta_ua [19.1K]
3 years ago
10

I really need help I'm stuck on this question please help

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
6 0
Isnt it 15?? since theyre all suppose to be the samw
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The numbers I circled in red is the questions I have to do can somebody help meh wit dis.Pls and ty .
bija089 [108]
8. 6m + 3n
11. 8r^3 - r^2
12. 3h^2 + 8

hope this helps !
4 0
3 years ago
A cylinder has radius of 4 inches and height 10inches.There’s a small cylinder inside the previous cylinder of radius of 2 inche
MaRussiya [10]

The surface area of the cylinder is 48π inches².

<h3>How to find the Surface area of a cylinder?</h3>

Surface area of a cylinder = 2πr(r + h)

where

  • r = radius
  • h = height

Therefore,

Surface area of the smaller cylinder = 2 × π × 2(2 + 10)

Surface area of the smaller cylinder = 4π(12)

Surface area of the smaller cylinder = 48π

learn more on Surface area  here: brainly.com/question/1780074

#SPJ1

8 0
1 year ago
Write the equations in graphing form, then state the vertex of the parabola or the center and radius of the circle.
Sati [7]
All we need is to put this form in the vertex form f(x) = (ax+b)^2 + c

So we have <span>f (x)= 3x^2+12x+11 ....

Let's complete the square (if you aware of it)
</span><span>
f(x)= 3x^2+12x+11 = 3(x^2+4x)+11 = 3(x^2+4x+4-4)+11
=</span><span> 3([x^2+4x+4]-4)+11 = 3[(x+2)^2-4]+11 =3</span><span>(x+2)^2 - 12 +11 = 3</span><span><span>(x+2)^2 -1

so our form would be:

f(x)=3(x+2)^2-1


Here is a parabola with vertex of (-2,-1) and with positive </span> slope (concave up)





</span>

I hope that helps!



6 0
3 years ago
Morgan is 23 years old. Her grandfather is 4 times as old. How old is her grandfather?
natka813 [3]

Answer:

92 years old

Step-by-step explanation:

Multiply 23 by 4

92

So Morgan's grandfather is 92 years old

Hope this helps :)

Please consider Brainliest :)

3 0
2 years ago
Read 2 more answers
Which equation has a slope of -2 and passes through the point (3,-4)
RUDIKE [14]

Answer:

B. y = -2x + 2

7 0
2 years ago
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