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2 years ago

Help me find p.....

Mathematics

1 answer:

asambeis [7]2 years ago

8 0

Answer: p = 120 degrees

Step-by-step explanation:

Figure a shows a pentagon. The sum of interior angles in a pentagon is equal to 540 degrees.

1. Subtract the known numerical angle

540 - 60 = 480

All of the remaining angles (represented by the variable p) are equal to one another. Therefore, we can use the expression 4p = 480 to find the value of p.

2. Evaluate the equation to find the value of p.

4p = 480

p = 120

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If BC = 5 and CD = 26, find AC.

Blababa [14]

Answer:

$AC=\sqrt{130}$

Step-by-step explanation:

AC is the geometric mean. Solve it using this proportion:

$\frac{BC}{AC}=\frac{AC}{CD}$

Now fill in the values we know:

$\frac{5}{AC}=\frac{AC}{26}$

Cross multiply to get

$(AC)^2=130$

That means that

AC = $\sqrt{130}$ , which, in decimal form is

AC = 11.40175425

3 0

3 years ago

the Wall Street Journal reported that automobile crashes cost United States $162 billion annually. The average cost per person f

Tanya [424]

Answer:

a) Margin of error = 166.311

b) sample size ≥ 62

Step-by-step explanation:

Given:

Average cost = $1599

Sample size = 50 persons

Standard deviation = $600

Confidence level is 95%

a) Margin of error = $z\frac{\sigma}{\sqrt{n}}$

Now for confidence level of 95% z-value = 1.96

Thus,

Margin of error = $1.96\frac{600}{\sqrt{50}}$

Margin of error = 166.311

b) For Margin of error ≤ 150

$z\frac{\sigma}{\sqrt{n}}$ ≤ 150

$1.96\frac{600}{\sqrt{n}}$ ≤ 150

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√n ≥ 7.84

n ≥ 61.4656

Therefore,

sample size ≥ 62

6 0

3 years ago

What factors of 72 add to 17

Naddik [55]

72 = 8*9
8 + 9 = 17

The factors you're looking for are 8 and 9.

7 0

3 years ago

Read 2 more answers

Jennifer has 82.5 yards of fabric to make curtains. She makes 8 identical curtains and has 7.3 yards of fabric remaining. How ma

stepan [7]

Answer:

9.4 yards

Step-by-step explanation:

If 7.3 yards of fabric are remaining, then Jennifer uses 82.5-7.3=75.2 yards of fabric.

Jennifer uses 75.2 yards of fabric to make 8 identical curtains, then

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2 years ago

Can someone find the volume to this :)))

Marizza181 [45]

I think it is 150 but i am not that suere.

5 0

2 years ago

Help me find p.....​

Help me find p.....