All categories

3 years ago

Which of the following is the surface area of the right cylinder below radius 7 height 2

Mathematics

2 answers:

Dimas [21]3 years ago

5 0

7^2 times 2 which is 49.2 and it is 98

juin [17]3 years ago

3 0

$\bf \textit{surface area of a cylinder}\\\\ SA=2\pi r(h+r)~~ \begin{cases} r=radius\\ h=height\\ -----\\ r=7\\ h=2 \end{cases}\implies SA=2\pi (7)(2+7) \\\\\\ SA=14\pi (9)\implies SA=126\pi$

You might be interested in

What is the equation of a line that passes through the points (-3, 4) and (2,8)?

ziro4ka [17]

Given that the line passes through the two points (-3,4) and (2,8)

We need to determine the equation of the line.

Slope:

The slope of the line can be determined using the formula,

$m=\frac{y_2-y_1}{x_2-x_1}$

Substituting the points (-3,4) and (2,8) in the above formula, we get;

$m=\frac{8-4}{2+3}$

$m=\frac{4}{5}$

Thus, the slope of the line is $m=\frac{4}{5}$

Equation of the line:

The equation of the line can be determined using the formula,

$y-y_1=m(x-x_1)$

Substituting the point (-3,4) and $m=\frac{4}{5}$ in the above formula, we have;

$y-4=\frac{4}{5}(x+3)$

$y-4=\frac{4}{5}x+\frac{12}{5}$

$y=\frac{4}{5}x+\frac{12}{5}+4$

$y=\frac{4}{5}x+\frac{32}{5}$

Thus, the equation of the line is $y=\frac{4}{5}x+\frac{32}{5}$

6 0

3 years ago

Which pair of planets exerts the strongest gravitational force, Saturn and Jupiter, or Mars and Jupiter. Explain

dsp73

Dear Noora7939, the pair of planets that exerts the strongest gravitational force is Saturn and Jupiter, since we know that both Jupiters are the same mass, we'll excuse that. Since the laws of gravity says that the bigger the mass the stronger the gravitational pull, Saturn has the stronger gravitational pull since Saturn is bigger than Mars.

6 0

3 years ago

Rewrite 3√5^2 with a rational exponent.

Law Incorporation [45]

Answer:

C. 5 2/3

Step-by-step explanation:

3 0

3 years ago

Solve the exponent equation: 4 × 9x -13 × 6x + 9 × 4x = 0

kicyunya [14]

Well x=0

I hope this helps!