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Rasek [7]
3 years ago
13

The measure of an angle is 8 times the measure of its complement. tina writes an equation and finds the correct measure of each

angle. which shows the equation tina could have written and the angle measures she could have found?
Mathematics
1 answer:
pogonyaev3 years ago
5 0
One of the unknown angles (let's called it n) has a complement (meaning their sum adds up to 90 degrees) and the other angle is 8 times the unknown angle (8n)

With all this information, you should have the equation:

n + 8n = 90

To solve, combine like terms to get:

9n = 90

Divide by 9 on both sides to isolate the variable n.

n = 10

Now we plug back in to find our angle measurements. The first angle, n, is 10 degrees. The second angle, 8n, is 8 * 10 which is 80; the second angle is 80 degrees. 
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I am gonna guess it is C. Both for this one.
3 0
4 years ago
The length of rectangle is 2 meters more than its width . The area of the rectangle is 80 square meter . what is the length and
stich3 [128]
Let the width of the rectangle be x
then the length is x+2
we are given the area as 80 square meter
and we know the area of a rectangle is given by
area=L*W
area=(x+2)*x
but our area=80
80=(x+2)*x
x^2+2x=80
x^2+2x-80=0
we use the quadratic formula to solve this which gives us
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8 0
4 years ago
Find the possible values of x.<br> the perimeter is less than or equal to 51 meters.
sertanlavr [38]

<u>Answer-</u>

<em>The value of x can be anything </em><em>between 0 to 15</em>

<u>Solution-</u>

Perimeter of a geometrical figure is the sum of lengths of all its sides.

So, the value of the perimeter of the given pentagon would be,

=8+8+10+10+x\\\\=(36+x)\ meters

As given in the question that, the perimeter is less than or equal to 51 meters.

So,

\Rightarrow 36+x\leq 51

\Rightarrow x\leq 15

As the side length can not be negative, so x must be positive, i.e

0

5 0
3 years ago
What is the quotient? <br> X+5/3x^2 + 4x+5
nasty-shy [4]

Answer:

3x - 11

Step-by-step explanation:

x + 5/ 3x-11

3x - 11 is the quotient

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2 years ago
How to evaluate (9/16)^-2
Sophie [7]
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