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dem82 [27]
3 years ago
14

Please help! My max is 17 points that how much they gave me!!

Mathematics
1 answer:
Firdavs [7]3 years ago
6 0
The answer is 29. If you put it in an equation, it looks like 90=(x*3)+3. If you -3 from each side, you get 87=x*3. Divide each side by 3, and you get x=29.
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You notice a hot air balloon descending. The elevation h (in feet) of the balloon is modeled by the function h(x)=−6x+330, where
Anastasy [175]

Answer:

<h3>55 secs</h3>

Step-by-step explanation:

Given the elevation h (in feet) of the balloon modeled by the function h(x)=−6x+330, we can calculate the time it takes the balloon to reach the ground. The hot air balloon hits the ground at h(x) = 0.

Substitute h(x) = 0 into the modeled expression and find x as shown;

h(x)=−6x+330

0 = −6x+330

6x = 330

Divide both sides by 6

6x/6 = 330/6

x = 55 seconds

Hence the hot air balloon hits the ground after 55 seconds

4 0
2 years ago
A cylinder has a diameter of 10 centimeters and a height of 15 centimeters. What is the surface area of the cylinder to the near
adelina 88 [10]

The surface area of the cylinder to the nearest tenth is:  628.3

The surface area without rounding is:  628.32

7 0
3 years ago
A figure is composed of two half-circles.
posledela

Answer:

The answer is C, 220 units.

3 0
3 years ago
What is the slope of the table x= 2, 0, -2, -4 y= 6, 1, -4, -9
Murrr4er [49]

Answer:

The slope of the table is m=\frac{5}{2}   or  m=2.5

Step-by-step explanation:

we know that

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

we have the following ordered pairs

(2,6),(0,1),(-2,-4) and (-4,-9)

take two points

(2,6) and (-4,-9)

substitute in the formula

m=\frac{-9-6}{-4-2}

m=\frac{-15}{-6}

simplify

m=\frac{5}{2}

6 0
3 years ago
Is 14.5℅ equivalent to 14.5
vova2212 [387]
No, it actually is not!

If you are to change it to a number, 

14.5% = .145
7 0
3 years ago
Read 2 more answers
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