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2 years ago

Find the square.

Mathematics

1 answer:

Alexandra [31]2 years ago

4 0

The answer is C... because after multiplying everything by itself that’s what you get.

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A baseball team played 25 games and won 10 of them. What percent of the games did they win?

Sauron [17]

Answer:

40%

Step-by-step explanation:

Because 25 is 1/4 of 100 so you multiply 10 by 4 and 25 by 4.

Let me know if its right!

3 0

3 years ago

Task 1:

laiz [17]

Answer:

The toy's maximum height is $10.12\ \text{feet}$ .

Step-by-step explanation:

The equation that models the toy's height in feet from the ground at t seconds after he threw it is given by :

$h = -2t^2 + 7t + 4$ .....(1)

It is required to find the toy's maximum height. For maxima or minima, put

$\dfrac{dh}{dt}=0$

Plugging the value of t in above equation,

$\dfrac{d(-2t^2 + 7t + 4)}{dt}=0\\\\-4t+7=0\\\\t=\dfrac{7}{4}\\\\t=1.75\ s$

Now put t = 1.75 s in equation (1) such that,

$h = -2(1.75)^2 + 7(1.75) + 4\\\\h=10.12\ \text{feet}$

So, the toy's maximum height is $10.12\ \text{feet}$ .

4 0

2 years ago

I can’t figure this out please help me out

fomenos

Answer:

The answer is -1\4

Step-by-step explanation:

because its negative you can't expect it to be positive 1\4 and its the only one that made sense

3 0

2 years ago

Read 2 more answers

Suppose that prior to conducting a coin-flipping experiment, we suspect that the coin is fair. How many times would we have to f

STALIN [3.7K]

Answer: b) 84

Step-by-step explanation:

Let p be the prior estimate of the required proportion.

As per given , we have

p =0.5 (The probability of getting heads on a fair coin is 0.5)

Significance level : $\alpha: 1-0.90=0.10\\$

Critical z-value (using z-value table ) : $z_{\alpha/2}=1.645$

Confidence interval width : w= 0.18

Thus , the margin of error : $E=\dfrac{w}{2}=0.09$

Formula to find the sample size ( if prior estimate of proportion is known.):-

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2$

Substitute the values , we get

$n=0.5(1-0.5)(\dfrac{1.645}{0.09})^2$

Simplify ,

$n=83.5192901235\approx84$ [Round of to the next whole number.]

Hence, the number of times we would have to flip the coin =<u>84</u>

hence, the correct answer is b) 84

8 0

2 years ago

Can someone please help me, ty!! (Will mark brainliest)

Aleks04 [339]

Answer:

im gonna say 4 if im wrong its my fault

8 0

2 years ago