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lys-0071 [83]
4 years ago
10

The angles below are supplementary. What is the value of x? A pair of supplementary angles is shown. One angle measures 4x + 20,

and the other angle measures 40.
answers:

5

7.5

15

30
Mathematics
2 answers:
nikdorinn [45]4 years ago
6 0

Answer: The answer is D. 30

I took the FLVS test and got it correct, just so everyone knows it is right!

Hoochie [10]4 years ago
3 0

Answer:

x = 30

Step-by-step explanation:

If the angles are supplementary, that means that they add up to 180°.

That means 40 + 4x + 20 = 180°

Simplify: 60 + 4x = 180

Subtract: 4x = 120

Divide: x = 30

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Drag the symbol to complete to this Inequality​
morpeh [17]

Answer:

The answer should be \leq.

Step-by-step explanation:

Because Right now 13.2 could be bigger than x or it could be equal to x so that's why its \leq.

Hope I Helped

3 0
4 years ago
Which of the following ordered pairs is a solution of x + 1/2y = 1?
pogonyaev

(-2,6)

for example  

x+1/2y=1  

the ordered pair i will use is the first one. (-2, 6)  

so  

(-2) + 1/2(6)=1  

from there it is a simple add/subtract and multiply/divide math problem.  

1/2(6)=3  

so  

(-2) + 3 = 1  

yes this ordered pair works for the solution meaning it is the answer.

3 0
4 years ago
Answer quick find the coordinates
Mekhanik [1.2K]

Answer:

  (-4, -3), (4, -1), (8, 0), (12, 1)

Step-by-step explanation:

The x- and corresponding y-values are listed in the table. Put each pair in parentheses, <em>x-value first</em>. (That is an <em>ordered pair</em>.)

  (x, y) = (-4, -3) . . . . from the first table entry

  (x, y) = (4, -1) . . . . from the second table entry

  (x, y) = (8, 0) . . . . from the third table entry

  (x, y) = (12, 1) . . . . from the last table entry

3 0
4 years ago
4. Find the volume of the figure. The base is a square.
GREYUIT [131]

Answer:

A) 283500 ft³

B) 1057.26 π in³

Step-by-step explanation:

A) Volume of square based pyramid

= 1/3 × Area of the base × height

= 1/3 × (90 ft)² × 105 ft

= 283500 ft³

B) This figure is a composite figure

Step 1

Find the volume of the cone

=1/3 πr²h

r = radius = 8.5 in

h = height = 10 in

= 1/3 × π × (8.5 in)² × 10 in

= 240.83333333 π in³

≈ 240.83 π in³

Step 2

Find the volume of the cylinder

= πr²h

= r = radius = 8.5 in

h = height = 11.3 in

= π × (8.5 in)² × 11.3 in

= 816.425 π in³

≈ 816.43π in³

Volume of the figure = (240.83 π + 816.43 π) in³

= 1057.26 π in³

7 0
3 years ago
Find the inverse of y= 2x^2-8​
ahrayia [7]

Answer:

f

−

1

(

x

)

=

√

2

(

x

+

8

)

2

,

−

√

2

(

x

+

8

)

2

Step-by-step explanation:

4 0
3 years ago
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