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Fudgin [204]
4 years ago
6

Find (f+g)(9) if f(x)=2x2-2x+25 and g(x)=6x2+7x-13

Mathematics
1 answer:
pogonyaev4 years ago
7 0

Answer:

3,297

Step-by-step explanation:

2(9)^2 - 2(9) + 25 + 6(9)^2 + 7(9) - 13\\18^2 - 18 + 25 + 54^2 + 63 - 13\\324 - 18 + 25 + 2,916 + 63 - 13\\331 + 2,966\\3,297

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The function h(t) = −16t2 + 110t + 72 models the height h, in feet, of an object above ground t seconds after being launched str
marissa [1.9K]
<h2>Answer:</h2>

We have the following function:

h(t)=-16t^2+110t+72

And this function models the height h, in feet, of an object above ground t seconds after being launched straight up in the air. The graph of this function is shown below. So we want to know what the number 72 represents. Well, what if t=0?

If t=0 we have:

h(0)=-16(0)^2+110(0)+72 \\ \\ \boxed{h(0)=72}

Thus, <em>72 is the height of the object above the ground at t=0. In other words, 72 is the initial height of the ball before being launched straight up in the air.</em>

6 0
3 years ago
Find the perimeter of the quadrilateral if x equals 2 , the perimeter is Inches
xenn [34]
If x = 2, the perimeter is 129 inches.
7 0
3 years ago
Read 2 more answers
Can someone please help
Lelechka [254]

Answer:

a

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
best definition of a cash crop? Crops that were grown to keep a family well fed Crops that were used to feed livestock or traded
marin [14]

1.  A. he established a policy of discipline

2. C. Grassland

3. D. A summary of events posted on an anti-British website

4. D. Different colonies produced different crops and products

5. idk but it think C. Southern colonies needed a larger labor force for cash crops

6. C. The southern colonies had more slave labor because of cash crops.

7. C. Crops that were grown in large amounts and sold for profit.

5 0
3 years ago
Read 2 more answers
Calculate the value of tan (48°19'23'').
Annette [7]

Answer:

tan (48°19'23'') => 1.1232

Step-by-step explanation:

60' minutes are present in a degree, and 60 * 60' seconds are present in a degree;

48°19'23'' = 48 + 19/60 + 23/3600

= \frac{172800}{3600}+\frac{1140}{3600}+\frac{23}{3600}

= \frac{172800+1140+23}{3600}

= \frac{173963}{3600} = 48.323°

tan(48.323°) = 1.1232

4 0
3 years ago
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