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aalyn [17]
3 years ago
14

One angle is twice another angle. The sum of the angles is 90 degrees. How many degrees are in each angle. Please explain.

Mathematics
1 answer:
Natali [406]3 years ago
7 0
One angle has 60 degrees, the other angle has 30 degrees.

60 divided by 30 = 2.

and 60 + 30 = 90.
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If you can’t see the answer choices , they are <br> A. 9<br> B. 8 <br> C. 10 <br> D. 12
ANTONII [103]

Answer:a)9

I think

Step-by-step explanation:

6 0
2 years ago
The function C(x)=−20x+1681 represents the cost to produce x items. What is the least number of items that can be produced so th
Reptile [31]

Answer:

<em>The least number of items to produce is 41</em>

Step-by-step explanation:

<u>Average Cost</u>

Given C(x) as the cost function to produce x items. The average cost is:

\displaystyle \bar C(X)=\frac{C(x)}{x}

The cost function is:

C(x) = -20x+1681

And the average cost function is:

\displaystyle \bar C(X)=\frac{-20x+1681}{x}

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We set the inequality:

\displaystyle \frac{-20x+1681}{x}\le 21

Multiplying by x:

-20x+1681 \le 21x

Note we multiplied by x and did not flip the inequality sign because its value cannot be negative.

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1681 \le 21x+20x

1681 \le 41x

Swapping sides and changing the sign:

41x \ge 1681

Dividing by 41:

x\ge 41

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8 0
3 years ago
Given that the expression 2x^3 + mx^2 + nx + c leaves the same remainder when divided by x -2 or by x+1 I prove that m+n =-6
Alla [95]

Given:

The expression is:

2x^3+mx^2+nx+c

It leaves the same remainder when divided by x -2 or by x+1.

To prove:

m+n=-6

Solution:

Remainder theorem: If a polynomial P(x) is divided by (x-c), thent he remainder is P(c).

Let the given polynomial is:

P(x)=2x^3+mx^2+nx+c

It leaves the same remainder when divided by x -2 or by x+1. By using remainder theorem, we can say that

P(2)=P(-1)              ...(i)

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P(-1)=2(-1)^3+m(-1)^2+n(-1)+c

P(-1)=-2+m-n+c

Substituting x=2 in the given polynomial.

P(2)=2(2)^3+m(2)^2+n(2)+c

P(2)=2(8)+m(4)+2n+c

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Divide both sides by 3.

\dfrac{3m+3n}{3}=\dfrac{-18}{3}

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Hence proved.

7 0
3 years ago
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inysia [295]

Slope intercept form looks like:


y = mx + b


-------------------------------------------------------------------------------------------------------------------


Choose the one that follows the formula


B) y=-2x+15 is your answer.

-2 = m

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hope this helps

7 0
3 years ago
Read 2 more answers
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Elina [12.6K]
C 100 ft2  need more characters sorry ashdashdasisncsijdhcfniuslfnxcm
8 0
3 years ago
Read 2 more answers
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