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diamong [38]
3 years ago
15

I need help with number 9 please thank you

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
3 0

Answer:

B:

Step-by-step explanation:

A pool is filled (which signifies the increase) a little time later (still full, flat line) it is emptied (the decrease) and then refilled (increase)

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What is the perimeter of a 4 m and 5 m rectangle
Tju [1.3M]
4 + 4 + 5 + 5 = 18

The answer is 18m. 

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5 0
4 years ago
Based on the diagram below, what is the measure of arc DC?
Debora [2.8K]

Answer:

108 °

Step-by-step explanation:

∠DOC = 180° - 112° = 68°

∠DOC = 1/2(arc AB + arc DC)

68 = 1/2(y + 80 + y)

68 = y + 40

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7 0
3 years ago
HELP ASAP!! NO WORK NEED!!Triangle ABC is a right triangle. Which equation can be used to find the value of x? CHECK ALL THAT AP
Lena [83]

The exterior angle equals the sum of two interior opposite angles

x + 90 = 2x + 40

Sum of all interior angles = 180

x + 90 + (x - 10) = 180

Answers:

x + 90 + (x - 10) = 180

x + 90 = 2x + 40

7 0
3 years ago
Read 2 more answers
The height of a triangle is 6x and the base is (3x + 10) cm. The area of the triangle is 816 sq. cm. What are the dimensions of
LiRa [457]

Answer:

Height: 48

Base: 34

Step-by-step explanation:

The formula for a triangle is 1/2(base)(height)

1/2(3x+10)(6x) = 816

18x² + 60x = 1632

18x² + 60x - 1632 = 0

Then, we use the Quadratic formula

x = (-60 ± √3600 + 117,504)/36

x =( -60 ± 348/36)

x = 288/36

x = 8

3(8) + 10

= 34

6(8) = 48

Therefore the dimensions are:

Height: 48

Base: 34

5 0
3 years ago
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