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2 years ago

Find the measures of the interior angles. what is angle A, B, and C

Mathematics

2 answers:

saul85 [17]2 years ago

5 0

Answer:

x= 75 degrees

Step-by-step explanation:

A triangle = 180 degrees

65+40=105 degrees

180-105=75

lina2011 [118]2 years ago

4 0

Answer:

75 degrees.

Step-by-step explanation:

All interior angles of a triangle add up to 180.

So we can set up an equation: 65+40+x=180

105+x=180

x=180-105

x=75

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Quality control studies for Speedy Jet Computer Printers show the lifetime of the printer follows a normal distribution with mea

Anika [276]

Answer:

About 3 years Speedy Jet printers be guaranteed.

Step-by-step explanation:

Given : Quality control studies for Speedy Jet Computer Printers show the lifetime of the printer follows a normal distribution with

mean $\mu = 4$ and standard deviation $\sigma = 0.78$

If the company wishes to replace no more than 10% of the printers.

To find : How long should Speedy Jet printers be guaranteed ?

Solution :

Using Z- table,

Z value corresponding to 10% or 0.10 = -1.28.

Applying z-score formula,

$z=\frac{x-\mu}{\sigma}$

The value of x is given by,

$x=(z\times \sigma)+\mu$

Substitute the values,

$x=(-1.28\times 0.78)+4$

$x=-0.9984+4$

$x=3.0016$

So, approx 3 years.

Therefore, About 3 years Speedy Jet printers be guaranteed.

8 0

3 years ago

Solve for missing side of the <br> a) 81 feet<br> b) 63 feet<br> c) 120 feet<br> d) 168 feet

Alex777 [14]

I can’t see the data did you forget to put it or like forget to put a picture???

8 0

2 years ago

If you have 20 coins worth $1.35, and you only have nickels and dimes, how many do you have of each coin?

ankoles [38]

N + d = 20....n = 20 - d
0.05n + 0.10d = 1.35

0.05(20 - d) + 0.10n = 1.35
1 - 0.05d + 0.10d = 1.35
-0.05d + 0.10d = 1.35 - 1
0.05d = 0.35
d = 0.35/0.05
d = 7 <==== 7 dimes

n + d = 20
n + 7 = 20
n = 20 - 7
n = 13 <=== 13 nickels

5 0

3 years ago

What is 45% of 10000

marshall27 [118]

Answer:

4500

Step-by-step explanation:

10000 x .45 = 4500

8 0

3 years ago

Read 2 more answers

What percent of 70 is 28

solniwko [45]

Find 28/70 and then mult. the result by 100%.

Using a calculator, 28/70 = 0.4. Multiplying this result by 100%, we get 40%.

3 0

3 years ago