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Bas_tet [7]
3 years ago
11

What is the complementary angle of an angle that measures 30 degrees?

Mathematics
1 answer:
astra-53 [7]3 years ago
4 0

Answer:

Step-by-step explanation:

If 2 angles are complementary, that means that they add up to 90 degrees.

The angle complementary to a 30-degree angle has to measure 60 degrees. D is your choice.

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OlgaM077 [116]

Answer:

$28

Step-by-step explanation:

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5 0
3 years ago
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The mean of the data set is 40 and one standard deviation is 5. About what percent of the numbers fall between 35 and 50?
Nataly [62]

Answer:

The correct option is D. 81.8%

Step-by-step explanation:

Mean of the data set is given to be 40

⇒ μ = 40

Standard deviation of the data set is given to be 5

⇒ σ = 5

Now we are supposed to find out what percent of the numbers fall between 35 and 50

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

Now for P(35 < x < 50) :

Substitute x = 35 ⇒ z = -1

Substitute x = 50 ⇒ z = 2

So, P(-1 < z < 2) = P(z < 2) - P(z < -1)

⇒ P(-1 < z < 2) = 0.9772 - 0.1587

⇒ P(-1 < z < 2) = 0.8185

⇒ P(-1 < z < 2) = 81.8%

Therefore, 81.8% percent of the numbers fall between 35 and 50

Hence, The correct option is D. 81.8%

8 0
4 years ago
Which of the following pair(s) of circles have l as a common internal tangent? Select ALL that apply.
kkurt [141]
It looks like only A and B, but could be trick question?
7 0
4 years ago
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Given △RST ≅ △LMN, m∠R=65°, and m∠M=70°. What is the measure of ∠T?
amm1812

Angle T should equal 45°

6 0
3 years ago
Graph the function with the given domain. Then identify the range of the function. y = -6; domain: x ≥ 5
hjlf

Answer: Plot a point at (-6,5) then just go start up. That is your graph

Step-by-step explanation:

Range is left to right so that means that the only point on the x axsis you can plot is -6 and the domain is up and down so you cant plot a point below 5

8 0
3 years ago
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