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2 years ago

Can Someone Help Me With This I Beg You.

Mathematics

1 answer:

ziro4ka [17]2 years ago

6 0

Pyramid hope this helps

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Levart [38]

Answer:

4:25

Step-by-step explanation:

Given that,

r₁ = 15 inches, r₂ = 6 inches

The area of the cylinder is given by :

$A=2\pi rh+2\pi r^2$

The ratio of surface areas of two cylinders,

$\dfrac{S_2}{S_1}=\dfrac{2\pi r_2h_2+2\pi r_2^2}{2\pi r_1h_1+2\pi r_1^2}\\\\\dfrac{S_2}{S_1}=(\dfrac{r_2}{r_1})^2\\\\=\dfrac{6}{15}^2\\\\=\dfrac{4}{25}$

Hence, the required ratio is 4:25.

8 0

2 years ago

Please answer!!!! will make brainliest!!!

hammer [34]

Answer:

Step-by-step explanation:

3(x+3) - 2 < 4
3x + 9 -2 < 4
3x < 4-7
3x < - 3
x < -1
x = (-oo, -1)

1 - x ≤ -1
- x ≤ -1 - 1
-x ≤ -2
x ≥ 2
x = [2, +oo)

Correct choice is B.

7 0

3 years ago

Mischa wrote the quadratic equation 0 = –x2 + 4x – 7 in standard form. What is the value of c in her equation

Zolol [24]

Mischa wrote the quadratic equation 0 = –x2 + 4x – 7 in standard form

The standard form of quadratic equation is

$y= ax^2 + bx + c$

When y=0 then the standard equation becomes

$0= ax^2 + bx + c$

Now we compare the given equation $0 = -x^2 + 4x - 7$ with $0= ax^2 + bx + c$ and find the value of a, b,c

-x^2 can be written as -1x^2

$0= ax^2 + bx + c$

$0 = -1x^2 + 4x - 7$

a= -1 , b=4 and c=-7

The value of c is -7

4 0

3 years ago

Read 2 more answers

If one card is drawn from a deck, find the probability of getting a 4 or a club

Anvisha [2.4K]

Answer:

16/52

Step-by-step explanation:

A 4 or a club4/52 + 13/52 - 1/52 = 16/52 = 4/13f. A 6 or a spade4/52 + 13/52 - 1/52 = 16/52 = 4/13g. A heart or a club13/52 + 13/52 = 26/52 = 1/2h.

8 0

2 years ago

Help!!! Look at the image below.. X= 8? 9? 10?

Korolek [52]

I think it is 10 lol sorry I’m not sure

8 0

2 years ago

Can Someone Help Me With This I Beg You.​

Can Someone Help Me With This I Beg You.