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Burka [1]
2 years ago
10

If two angles are complementary, which is the sum of their measurements?

Mathematics
2 answers:
Anna [14]2 years ago
5 0

Answer: a complimentary angle measures 90 degrees. The measure of 2 complimentary angles would be 2x90=180


Step-by-step explanation:


Alex_Xolod [135]2 years ago
3 0

Answer:

90^{\circ}

Step-by-step explanation:

An angle is a figure obtained by two rays sharing a common vertex .

Here, a ray is a line with only one end point .

A line segment is a line which has two end points .

Vertex is a point where the two lines meet .

Two angles \alpha and \beta are said to be complementary if \alpha +\beta = 90^{\circ} .

{ For example if we take \alpha= 40^{\circ} then it's complement is \beta = 50^{\circ} as \alpha +\beta =40^{\circ}+50^{\circ}=90^{\circ} }

So, we can say if two angles are complementary then their sum is 90^{\circ} .

Option B. is correct .

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Which of the following could be the system of nonlinear inequalities graphed below?
Ivan

Answer:

Option A.

Step-by-step explanation:

step 1

we know that

The equation of the solid line is

y=5

The solution is the shaded area above the solid line

so

The equation of the first inequality is

y\geq 5

step 2

The equation of the dashed line is

y=x^{2} -5x+6

The solution is the shaded area above the dashed line

so

The equation of the second inequality is

y>x^{2} -5x+6

therefore

The system of inequalities could be

y\geq 5

y>x^{2} -5x+6

4 0
3 years ago
Question 1
viktelen [127]

Given:

The demand function is,

Q=-3p^2+2p+1970

The total revenue function is,

\begin{gathered} TR=p\times Q \\ TR=p\times(-3p^2+2p+1970) \\ TR=-3p^3+2p^2+1970p \end{gathered}

Answer:

TR=-3p^3+2p^2+1970p

3 0
10 months ago
Algebra 2 Question, tagged in the link
deff fn [24]
The answer to the question

7 0
2 years ago
Assume that we want to construct a confidence interval. Do one of the​ following, as​ appropriate:_________.
andreyandreev [35.5K]

Answer:

B. z Subscript alpha divided by 2 zα/2 = 1.96.

Step-by-step explanation:

We are given that we want to construct a confidence interval. For this, the summary statistics for randomly selected weights of newborn​ girls:

n = 236​, \bar x = 30.3 ​hg, s = 7.2 hg. The confidence level is 95​%.

As we can clearly see here that the population standard deviation is unknown and the sample size is also very large.

It has been stated that when the population standard deviation is unknown, we should use t-distribution but since the sample size is very large so we can use z distribution also as it is stated that at very large samples; the t-distribution corresponds to the z-distribution.

Here, \alpha = level of significance = 1 - 0.95 = 0.05 or 5%

         \frac{\alpha}{2}=\frac{0.05}{2} = 0.025 or 2.5%

So, the value of Z_(_\frac{\alpha}{2} _) in the z table is given as 1.96 with a 2.5% level of significance.

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3 years ago
Ms. Wittenberg had a total of $220. She spent $11 at Dunkin' Donuts.
Sphinxa [80]
She spent 5% of her money
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