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Cerrena [4.2K]
2 years ago
11

Pleaseee HELPP MEE WITHH THIS QUESTION!

Mathematics
1 answer:
Zina [86]2 years ago
7 0

Answer:

1120°

Step-by-step explanation:

Use the sum of interior angles formula:

180(n-2)

Where n is the number of sides.

In a nonagon, there are 9 sides, substitute 9 for n:

180(9-2)\\180(7)\\1260

Since our nonagon is a regular nonagon, all 9 angles measure the same, so each angle measures:

\frac{1260}{9} =140

Subtract 140 from 1260:

1260-140=1120

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A group of rectangular prisms is shown.
scoray [572]

Answer:

D, E and F

calculating the volume of regular bodies like prims works by multiplication alone.

you need some addition for surface area and for more complicated bodies that when the volume can't be calculated in one step

8 0
2 years ago
PLEASE HELP ME EXPLAIN THE ANSWER
tigry1 [53]

Answer:

  See the attachment

Step-by-step explanation:

The inequalities resolve to ...

  x ≥ 1 or x ≤ -3

You have chosen the correct placement of the lines on the number line. The "or equal to" symbol (≥ or ≤) means the dots at -3 and +1 are filled in, indicating those numbers are part of the solution.

If the ">" or "<" symbol is used in the inequality, the dot is left open, as in the answer you selected. The open dot indicates that value is not part of the solution set.

8 0
3 years ago
What is between 50 and 100
Zarrin [17]
51-99 thats so easy :v
6 0
3 years ago
Read 2 more answers
In ΔPQR, the measure of ∠R=90°, the measure of ∠P=26°, and PQ = 8.5 feet. Find the length of QR to the nearest tenth of a foot.
Vitek1552 [10]

Answer:

3.7feet

Step-by-step explanations

Using the sin rule

A/sin a = B/sin b

Let A = PQ = 8.5feet

B = QR = x feet

a = R = 90°

b = P = 26°

Substitute the values into the Sin rule

8.5/sin90 = x/sin26

8.5×sin 26 = x × sin 90

8.5×0.4383 = x× 1

3.7255 = x

Hence the length of QR to the nearest tenth 3.7feet

5 0
2 years ago
Read 2 more answers
PLSS PLSS HELP THIS IS SO IMPORTANT
iren2701 [21]

Answer:

8 squares

Step-by-step explanation:

Count the squares- 5

then count the triangles- 6

2 triangles is one square- 3

add the triangles and squares

5+3=8

6 0
2 years ago
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