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3 years ago

An angle measures 80° more than the measure of a complementary angle. What is the measure of each angle?

Mathematics

1 answer:

Rom4ik [11]3 years ago

6 0

Supplementary angles sum to 180 degree

Let one angle be x

Then the other angle is x+80

Summing the 2 angle gives

x+x+80=180

2x+80=180

2x=180-80

X=50

Thus the angles are 50 degree and 50+80= 130 degree

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An airport is studying the noise levels of jets during takeoff as they pass over a neighborhood. They find that at the present t

avanturin [10]

Answer: 2.28%

Step-by-step explanation:

Given: An airport find that at the present time, the mean noise level is 103 decibels and the standard deviation is 5.4 decibels.

The distribution of noise levels(x) for all jets during takeoff over the neighborhood has a normal distribution.

The probability that jets have a noise level less than 92.2 decibels when taking off over this neighborhood will be :-

$P(X$

Hence, the percent of these jets have a noise level less than 92.2 decibels when taking off over this neighborhood = 2.28%

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3 years ago

Is the number 5.2 x 102 greater than 1 or smaller than 1?

elena55 [62]

It’s b I did this lesson before hope that helps

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2 years ago

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Find the first five terms that correspond with the following expression.<br><br> 4n + 2

Lorico [155]

Answer:

6,10,14,18,22

Step-by-step explanation:

4n+2

Let n=1 4(1)+2 = 4+2 = 6

Let n=2 4(2)+2 = 8+2 = 10

Let n=3 4(3)+2 = 12+2 = 14

Let n=4 4(4)+2 = 16+2 = 18

Let n=5 4(5)+2 = 20+2 = 22

7 0

2 years ago

Need help on this, need help now D:

baherus [9]

Answer:

$\sqrt{34}$

Step-by-step explanation:

Calculate the distance using the distance formula

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = A(- 2, 5) and (x₂, y₂ ) = B(3, 8)

d = $\sqrt{(3+2)^2+(8-5)^2}$

= $\sqrt{5^2+3^2}$

= $\sqrt{25+9}$

= $\sqrt{34}$

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3 years ago

Write the equation that represents the relationship between n the number of triangles and p the perimeter of the figures formed.

Klio2033 [76]

1 triangle: 2*6 + 1*5

2 triangles: 2*6 + 2*5

3 triangles: 2*6 + 3*5

So for n triangles: p = 2*6 + n*5 = 12 + 5n

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3 years ago

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