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3 years ago

How many edges does a triangular prism have?

1 answer:

6 0

The answer would be 9, because you have the 3 edges along the rectangles, and then 3 edges each for the triangles. So 3 + 3 + 3 = 9. I hope this helps!

You might be interested in

Find the values of x and y.

ValentinkaMS [17]

Answer:

x=110° y=140°

Step-by-step explanation:

x=180°-70°

x=110°

y=x+30°

y=110°+30°

y=140°

3 0

3 years ago

Anna enjoys dinner with her family at a restaurant in Washington, D.C. She leaves a 15% tip on the price of her meal. She also h

AnnZ [28]

Answer:

$22

Step-by-step explanation:

tax and the tip increase the price paid for the meal

she paid 15 + 10 = 25% more than the price of her meal

p = original price

1.15 x p = 27,50

p = 27.50 / 1.15 = 22

3 0

2 years ago

How much I treat will be earned on a savings account that pays 8% compounded annually, if $16,000 is invested for 2 years?

leva [86]

I=prt
i=16000*8%*2
i=16000*0.8*2
i=25600

6 0

3 years ago

Read 2 more answers

Solve 1/2x−5=10−3/4x . Check your solution.<br><br> x=___

dem82 [27]

X= 12

Please let me know if I need to explain it

5 0

2 years ago

Read 2 more answers

An ordinance requiring that a smoke detector be installed in all previously constructed houses has been in effect in a particula

bonufazy [111]

Answer:

a. P=0.01222

b. P=0.98778

c. The probability of rejecting the claim is now P=0.00298.

Step-by-step explanation:

In this case, we evaluate the sampling distribution for a population proportion π=0.8 with a sample size of 25.

We need to calculate the probability of getting a sample mean below 15, which means p=15/25=0.6.

The standard deviation of the sampling distribution is:

$\sigma_M=\sqrt{\frac{\pi(1-\pi)}{N}} =\sqrt{\frac{0.8\cdot0.2}{25}} =\sqrt{\frac{0.16}{25} } =0.08$

The z value por p=0.6 is

$z=\frac{p-\pi+0.5/N}{\sigma} =\frac{0.6-0.8+0.5/25}{0.08}= \frac{-0.18}{0.08} =-2.25$

The probability of having a sample mean less than 15 is

$P(\bar X$

The probaiblity of not rejecting the claim is 1-0.01222=0.98778

If the value 15 is replaced by 14, we have a new value of p=14/25=0.56.

There will be less chances of rejecting the hypothesis.

$z=\frac{p-\pi+0.5/N}{\sigma} =\frac{0.56-0.8+0.5/25}{0.08}= \frac{-0.22}{0.08} =-2.75$

$P(\bar X$

6 0

3 years ago