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3 years ago

Please answer! I give brainliest when I can! It make my day :-) ASAP :-(

Mathematics

1 answer:

hjlf3 years ago

7 0

Answer:

A=1/2h(7+11) or A=1/2h(77)

The area is dependent on the height and the height changes based on the length of both of the bases

Step-by-step explanation:

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How must unit cubes be stacked when used to measure volume?

photoshop1234 [79]

A unit cubes measures a distance of one on each side. The cube are then counted in a way to allow calculation of the volume visually.

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4 years ago

Someone please help me will give BRAILIEST!!!!

diamong [38]

Choice D X intercept = Y intercept

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3 years ago

A USA Today/CNN/Gallup survey of 369 working parents found 200 who said they spend too little time with their children because o

KengaRu [80]

Answer: a. 0.542

b. 0.051

c. $(0.491,\ 0.593)$

Step-by-step explanation:

Let p be the population proportion of parents spend too little time with their children because of work commitments

As per given , we have

n= 369

$\hat{p}=\dfrac{200}{369}=0.542005420054\approx0.542$

Since the sample proportion is the best estimate for the population proportion.

So , the point estimate of the proportion of the population of working parents who feel they spend too little time with their children because of work commitments = 0.542

z-value for 95% confidence interval : $z_{\alpha/2}=1.96$

Margin of error : $E=z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$E=(1.96)\sqrt{\dfrac{0.542(1-0.542)}{369}}\\\\=0.0508364564574\approx0.051$

The margin of error = 0.051

Confidence interval : $\hat{p}\pm E$

$0.542\pm0.051\\\\=(0.542-0.051,\ 0.542+0.051)\\\\=(0.491,\ 0.593)$

95% confidence interval estimate of the population proportion of working parents who feel they spend too little time with their children because of work commitments : $(0.491,\ 0.593)$

6 0

4 years ago

PLEASE HELP 25 POINTS

e-lub [12.9K]

Answer:Point X= 1600m, Point Z= 2050m

Step-by-step explanation:

8 0

3 years ago

$1675 at 4.6% for 4 years

zzz [600]

$1675 at 4.6% for 4 years
<span>Interst of P = $1675 at R = 4.6% for T = 4 years = P x R x T = $1675 x 4.6% x 4 = $308.20
</span>
Hope this helps:D

5 0

3 years ago