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stiv31 [10]
3 years ago
11

Evaluate the function for x=2:f(x)=7x-5

Mathematics
2 answers:
Alina [70]3 years ago
8 0
The answer will be 9. Beacuse 7×2 =14 and then 14 -5 = 9
Natali5045456 [20]3 years ago
7 0

The answer would be A) 9

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The relationship is not proportional because the boys and girls are in different grades and they are in different activities.
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3 years ago
A bad punter on a football team kicks a football approximately straight upward with an initial velocity of 89 ft/sec.
Andrej [43]

Answer:

See below

Step-by-step explanation:

Vertical velocity will be affected by gravity in this scenario

df = do + vo t + 1/2 a t^2         do = original height = 4 ft      a = -32.2 ft/s^2

<u>df = 4 + 89 t  - 1/2 (32.2) t^2        df = height</u>

<u />

On the way up and the way down, the ball may reach height of 102.2125 ft :

102.2125 = 4 + 89 t - 1/2 (32.2) t2   re-arrange to:

-16.1 t^2 + 89t - 98.2125 =0  

      Use Quadratic Formula to find <u>t =   1.5 and 4.0 s </u>

6 0
2 years ago
How many triangles can be constructed with sides measuring 5 m, 16 m, and 5 m?
stepladder [879]
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3 0
3 years ago
Read 2 more answers
The difference between the most hours of sleep and the least of these students was 2.5 hours. True or false?​
SashulF [63]

The correct anwer is False

Explanation

According to the graph, it can be seen that a student has four hours of sleep as the minimum number of hours of sleep; two students have six hours of sleep, four students have six and a half hours of sleep, four have seven hours of sleep, three have seven and a half hours of sleep, five have eight hours of sleep, and one has eight and a half hours of sleep as maximum hours of sleep. Therefore, it can be affirmed that the statement that the difference between the maximum amount and the minimum number of hours is two and a half hours is false because between four hours and eight and a half hours there are four and a half hours of difference. So, the correct answer is False.

8 0
3 years ago
Examine the figure. What is the measure of angle a?
pantera1 [17]

A = 180-90-31

A = 59

Answer: 59

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2 years ago
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