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3 years ago

The results of a swim meet are shown. Who swam the fastest?explain your reasoning.

1 answer:

4 0

I Low-key think it's Pepita. She swam the 100m butterfly in 60.2 seconds. So I think it's Pepita. Although, if you know how to swim you know none of these are easy except freestyle. So Tawni got it easy! Goodluck.

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Katrina randomly selected 64 students out of her school of 400 students and found that 40 of them want school to start at a late

SashulF [63]

- The sample size is 64.

- The point estimate of the population proportion is 0.625.

-The margin of error is approximately 16%.

6 0

3 years ago

Read 2 more answers

400 divided by 10 to the third power

True [87]

$400/10^3 = 4*10^2/10^3 = 4* \frac{10^2}{10^3}=4* \frac{1}{10} = \frac{4}{10} =0.4$

6 0

3 years ago

The graph of an inverse trigonometric function passes through the point (1, pi/2). Which of the following could be the equation

rodikova [14]

Answer: C) $y=sin^-1 x$

Step-by-step explanation:

Since, the graph of an inverse trigonometric function will pass through the point $(1,\frac{\pi}{2})$ ,

If this point satisfies the function,

For the function $y=cos^{-1} x$

If x = 1

$y=cos^{-1}1=0$

Thus, $(1,\frac{\pi}{2})$ is not satisfying function $y=cos^{-1} x$ ,

⇒ The graph of $y=cos^{-1} x$ is not passing through the point $(1,\frac{\pi}{2})$

For the function $y=cot^{-1}x$

If x = 1

$y=cot^{-1}1=\frac{\pi}{4}$

Thus, $(1,\frac{\pi}{2})$ is not satisfying function $y=cot^{-1}x$ ,

⇒ The graph of $y=cot^{-1}x$ is not passing through the point $(1,\frac{\pi}{2})$

For the function $y=sin^{-1} x$

If x = 1

$y=sin^{-1}1=\frac{\pi}{2}$

Thus, $(1,\frac{\pi}{2})$ is satisfying function $y=sin^{-1} x$ ,

⇒ The graph of $y=sin^{-1} x$ is passing through the point $(1,\frac{\pi}{2})$ .

For the function $y=tan^{-1}x$

If x = 1

$y=tan^{-1}1=\frac{\pi}{4}$

Thus, $(1,\frac{\pi}{2})$ is not satisfying function $y=cos^{-1} x$ ,

⇒ The graph of $y=tan^{-1} x$ is not passing through the point $(1,\frac{\pi}{2})$ .

Hence, Option C is correct.

3 0

3 years ago

Solve this 11 - 3 × 4 + 3

scoray [572]

BEDMAS

3x4 = 12

11 - 12 + 3

11 - 12 = -1

-1 + 3 = 2

3 0

3 years ago

Read 2 more answers

-5m² = -125

shusha [124]

-5m^2 = -125
m^2 = 25
m = SquareRoot (25)
m = 5

Equation has real number solution.

8 0

3 years ago