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oksian1 [2.3K]
3 years ago
12

Evaluate the function. f(x) = -x2 + 5x + 15 Find f(9)

Mathematics
2 answers:
ss7ja [257]3 years ago
6 0
When evaluating this problem F(9) = 42
Keith_Richards [23]3 years ago
5 0

Answer:

f(9) = 42

Step-by-step explanation:

f(9) = (-9)*2 + 5*9 +15

= -18 + 45 + 15

= 42

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The table shows masses of different types of nuts that Nathan buys. He plans to mix the nuts and then separate them into bags. E
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Nathan can fill 10 FULL bags of mixed nuts.

To solve this problem, you must add up the total mass of ALL the nuts first. 

3.64+ 2.79 = 6.43
3.44+2.73 = 6.17
6.43+ 6.17 = 12.60.

When Nathan mixes all of the nuts, it is 12.60 kg.

Since he is separating or dividing, you divide 12.60 by 1.2.

12.60 / 1.2 = 10.5

Since the question is asking FULL bags, the answer is 10. 

Hope this helps! :)
7 0
3 years ago
Read 2 more answers
What is the value of the expression with a = -1.4 and b = -2.7?
V125BC [204]

Answer:

C) -1.3

Step-by-step explanation:

|a| + b

Substitute a = -1.4  b = -2.7

|-1.4| + -2.7

Absolute values are positive

1.4 -2.7

-1.3

5 0
3 years ago
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5 0
2 years ago
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Shirley has earned $148 doing chores, but she wants to have earned at least $200 by the end of the week. if she does chores ever
asambeis [7]
Next 7 days
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5 0
3 years ago
Use the formula . Find t for r = 33.2 m/h and d = 375.16 m.
Butoxors [25]

\boxed{t=11.3h}

<h2>Explanation:</h2><h2></h2>

In this problem we have the following data:

r:speed \\ \\ d:distance \\ \\ t:time \\ \\ \\ r=33.2m/h \\ \\ d=375.16m \\ \\ \\ So \ our \ goal \ is \ to \ find \ t

Speed, time and distance are related with the following formula:

r=\frac{d}{t} \\ \\ \\ Solving \ for \ t: \\ \\ t=\frac{d}{r} \\ \\ t=\frac{375.16}{33.2} \\ \\ \boxed{t=11.3h}

<h2>Learn more:</h2>

Speed: brainly.com/question/14095729

#LearnWithBrainly

7 0
3 years ago
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