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faust18 [17]
4 years ago
15

F(x) = -x^2-7x-2find f(-9)PLEASE HELP

Mathematics
2 answers:
Anna11 [10]4 years ago
8 0

Answer:

In the pic

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ÷)

eimsori [14]4 years ago
3 0

Answer:

-20

Step-by-step explanation: f(x) = -x^2-7x-2

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What is the area of a triangle with a base length of 2 1/2 inches and a height of 2 inches
Sedaia [141]
Hello I am happy to help you with this problem. So the formula to solve for a triangle is A = bxh divided by 2.
So it’s area equals base times height divided by 2. So the base is 2 1/2 which becomes 5/2 ( five over 2) times 2 which equals 5. It’s because you cancel. So 5 divided by 2 equals 5/2 which also equals 2 1/2.



I hope that helps you. If you have any questions please feel free to ask me.
6 0
4 years ago
Joes electric made 19 customer calls last week and 25 this week. How many calls must be made next week in order to maintain an a
Mkey [24]

Answer:

At least 16 calls must be made.

Step-by-step explanation:

It is given that Joes electric made 19 customer calls last week and 25 this week.

Let x calls be made next week in a order to maintain an average of at least 20 calls per week for three week period.

Average=\dfrac{\text{Sum of observations}}{\text{Number of observations}}

Average=\dfrac{19+25+x}{3}

Average=\dfrac{44+x}{3}

Average at least 20.

Average\geq 20

\dfrac{44+x}{3}\geq 20

44+x\geq 60

x\geq 60-44

x\geq 16

Hence, at least 16 calls must be made.

7 0
3 years ago
an auditorium holds 72 people for a school assembly. only staff and students will attend. if the number of students is 8 times t
lina2011 [118]

Answer:

I would say there should be about 63 students

7 0
3 years ago
Read 2 more answers
Mai sold t- shirts at a festival and made a profit of $83. She made $5 for each t-shirts she sold. Her total expenses were. How
Sati [7]

Answer:

21 T-shirts, (this is just a thought of what i think i need to do) Hope it helps

Step-by-step explanation:

I think iv seen this question somewhere so did u forget to put 22?

Here is the explaination if u did...

5T -22 = 83

revenue minus expense = profit

5T = 83+22 = 105

T = 105/5 = 21 T shirts sold

4 0
3 years ago
Without using technology, describe the end behavior of f(x) = 3x32 + 8x2 − 22x + 43. (2 points)​
Elis [28]

Answer:

This function is an even-degree polynomial, so the ends go off in the same directions, just like every quadratic I've ever graphed. Since the leading coefficient of this even-degree polynomial is positive, the ends came in and left out the top of the picture, just like every positive quadratic you've ever graphed. All even-degree polynomials behave, on their ends, like quadratics.

Step-by-step explanation:

3 0
3 years ago
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