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Thepotemich [5.8K]
3 years ago
13

Two of the angles in a triangle measure 18° and 72°. What is the measure of the third angle?

Mathematics
1 answer:
Delvig [45]3 years ago
6 0

Answer:

Step-by-step explanation:

the sum of angles in a triangle is 180 degrees

18 + 72 + X = 180

90 + X = 180

X = 180 -90

X = 90

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zaharov [31]
Hello there!

4 pencils . 4/9 of an hour = 4/9 of 60 minutes = 4/9 * 60 = 80/3 minutes
x pencils = ? . one hour = 60 minutes14 * 60 = 80/3 * x       /*3
14 * 60 * 3 = 80 * x
80 * x = 2520            /80
x = 2520 / 80
x = 31.5 pencilsThe result would be 32 pencils in one hour.

Hope I helped!

7 0
3 years ago
Solve the following equation by Cramer's rule​
podryga [215]

Answer:

All Indians are my brothers and sisters aur Cramer mera chacha hai

5 0
3 years ago
Before agreeing to purchase a large order of polyethylene sheaths for a particular type of high-pressure, oil-filled submarine p
sasho [114]

Answer:

H0 : σ = 0.5

H0 : σ < 0.5

Step-by-step explanation:

From the scenario described above, the company wants to see conclusive evidence that the population standard deviation of sheath thickness is less than .05 mm ; THIS SIMPLY means ; REJECTION OF the NULL HYPOTHESIS. This is because once there is a significant or conclusive evidence in hypothesis testing, then we reject the null and support the claim of the alternative hypothesis.

Hence, the alternative hypothesis is ; population standard deviation of sheath Thickness is less than 0.5.

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Therefore, our null will be ;

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4 0
2 years ago
Jeff is buying apples and bananas from the farmer's market. He know that to find his total cost he will use the expression 1.25a
yan [13]

Answer: 8.00


Step-by-step explanation:

1.25a=3 0.50=5 so the answer is D, 8.00

5 0
3 years ago
-5.5x+0.56= -1.64 What does x equal to ?
RUDIKE [14]
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3 years ago
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