Ask question

Ask question

All categories

3 years ago

11

Someone please help me with this.

1 answer:

liubo4ka [24]3 years ago

5 0

Radius=r=0.7m
Volume=231m^3
Height=h

$\boxed{\sf Volume=\pi r^2h}$

$\\ \sf\longmapsto π(0.7)^2h=231$

$\\ \sf\longmapsto 0.49πh=231$

$\\ \sf\longmapsto πh=\dfrac{231}{0.49}$

$\\ \sf\longmapsto 3.14h=471.4$

$\\ \sf\longmapsto h=\dfrac{471.4}{3.14}$

$\\ \sf\longmapsto h=150m$

You might be interested in

PLEASE HELP ME MARKING PEOPLE AS BRAINLIST

Y_Kistochka [10]

Answer:

A

Step-by-step explanation:

3 0

3 years ago

1/8 • 3/11 what is the product

vagabundo [1.1K]

Answer:

3/88

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

What is the 4th term of the expanded binomial (2x – 3y)^6

san4es73 [151]

Answer:

The 4th term of the expanded binomial is $-4320x^3y^3$

Step-by-step explanation:

Considering:

$(x+y)^n = \sum_{k=0}^{n} \binom{n}{k} x^{n-k}y^k$

$(2x-3y)^6 = \sum_{k=0}^{6} \binom{6}{k} (2x)^{6-k}(-3y)^k$

Now, you gotta calculate for every value of $k$

$(2x-3y)^6 = \binom{6}{0} (2x)^{6-0}(-3y)^0 + \binom{6}{1} (2x)^{6-1}(-3y)^1 + \binom{6}{2} (2x)^{6-2}(-3y)^2 + \\$

$\binom{6}{3} (2x)^{6-3}(-3y)^3 + \binom{6}{4} (2x)^{6-4}(-3y)^4 + \binom{6}{5} (2x)^{6-5}(-3y)^5 + \binom{6}{6} (2x)^{6-6}(-3y)^6$

I will not write every product, but just solve following the steps:

For $k=0$

$\binom{6}{0} (2x)^{6-0}(-3y)^0$

$\frac{6!}{(6-0)!(0!)} (2x)^{6-0}(-3y)^0$

$\frac{6!}{6!} \left(2x\right)^{6-0}\cdot 1$

$1\cdot \:1\cdot \left(2x\right)^{6-0}$

$2^6x^6$

$64x^6$

$(2x-3y)^6=64x^6-576x^5y+2160x^4y^2-4320x^3y^3+4860x^2y^4-2916xy^5+729y^6$

8 0

3 years ago

PQR is right-angled triangle.calculate the soze of the angle marked correct.

OleMash [197]

The correct answer is 40.3 degrees

7 0

3 years ago

Find the value of x if the points (x,5) and (3,7) lie on the line whose slope is 4/7

muminat

Answer:

x = -4

Step-by-step explanation:

Write and solve an equation in which the slope from the definition of slope is on the left side and the given slope, 4/7, is on the right side:

7 - 5 4

m = ---------- = --------

3 - x 7

Simplifying with the aim to find the value of x:

2(7) = 4(3 - x), or 7 = 3 - x. Then x = -4.

6 0

3 years ago