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3 years ago

\-x+sqrt1−x 2\-=sqrt2(2x 2−1).

Mathematics

1 answer:

lesya [120]3 years ago

5 0

Answer:

Step-by-step explanation:

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Surface area of hemisphere with diameter of 18

saul85 [17]

Answer:

In terms of pi: 243 $\pi$

in decimal form: 763.407

Step-by-step explanation:

to find surface area of a hemisphere the formula is,

$3\pi r^{2}$

diameter (d) = 18

radius = d / 2 = 18 / 2

radius = 9

$3\pi (9)^{2} \\3\pi (81)\\243\pi \\OR\\763.407$

6 0

2 years ago

Given f(2) = 12, which of the following could be an equation of the function?

Serhud [2]

The answer is B, f(x) = 4x + 4.
If you substitute 2 for x, the resulting answer will be 12, therefore it is correct.

3 0

3 years ago

2-(-2)= asaapaappaappap pleaseee help

IRINA_888 [86]

Answer:

Four is the final answer (4)

Step-by-step explanation: Have a brilliant day of learning!

7 0

3 years ago

Write the equation that passes through the following points:<br><br> (5,0) and (−10,−5)

Vikentia [17]

Answer:

The answer is:

$y = \frac{1}{3} x - \frac{5}{3}$

Step-by-step explanation:

❃Incase you forgot what the linear equation formula is ☟

$y = mx + b$

❃Incase you also forgot, The is what the slope formula is ☟

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

➊ First: We are going to be solving for the slope.

$m = \frac{ - 5 - 0}{ - 10 - 5} = \frac{ - 5}{ - 15} = \frac{1}{3}$

➋Second: We find the y-intercept.

$y = mx + b \\ 0 = \frac{1}{3} (5) + b \\ 0 = \frac{5}{3} + b \\ \frac{ - \frac{5}{3} = - \frac{5}{3 } \: \: \: \: \: \: \: \: \: \: \: \: }{ - \frac{5}{3} = b}$

➌Third: Plug in.

$y = \frac{1}{3} x - \frac{5}{3}$

4 0

3 years ago

Geometry, dont need explanation. Just those 3 questions.

Aloiza [94]

Answer:

1. B

2. A

3. C

Step-by-step explanation:

6 0

2 years ago