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garik1379 [7]
3 years ago
12

F(x)=-3x^2-6x Find f(−9)

Mathematics
2 answers:
White raven [17]3 years ago
5 0

Answer:

f(-9)= -189

Step-by-step explanation:

f(-9)= -3(-9)^2-6(-9)

f(-9)= -3(-9)^2 +54

f(-9)= -3(81) +54

f(-9)= -243 + 54

f(-9)= -189

Anni [7]3 years ago
3 0

Answer:

Your brain.

Step-by-step explanation:

All you have to do is plug the value of -9 into the equation everywhere you see an 'x' and if you are being asked this question I assume you have basic mathematical skills

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Plzzzzzzzzz help and fast
OverLord2011 [107]

A right skewed distribution/graph is the same as a positively skewed graph!

In this case, a right-skewed graph increases then decreases from left to right.

Your answer is B!

8 0
2 years ago
Determine the sum of the first seven terms 256+128+64+32+...​
vova2212 [387]

Answer:

I cannot see the rest of the terms. I only see 4.

Step-by-step explanation:

3 0
2 years ago
A tool set is on sale for $424.15.The original price of tthe tool set was $499.00. What percent of the original price is the sal
Jet001 [13]

Answer:


Step-by-step explanation:

The sale price is out of the original price so do 424.15 / 499.00 to find what it is out of in decimal form. Multiply your answer by 100 to find the percentage.

So:

424.15 / 499.00 =0.85

0.85 x 100 = 85

So the answer would 85%.

Hope this helps!


3 0
3 years ago
Mr. Walker is looking at the fundraiser totals for the last five years.
balu736 [363]
$880, $896, $914, $925, and $963

median = $914
mean = (896+925+880+963+914)/5 = 4578/5 = $915.6

$915.6 - $914 = $1.6

so mean is greater than median $1.6

answer is B. second choice
<span>The mean is $1.60 greater.</span>
6 0
3 years ago
Read 2 more answers
Find the sum of the first 6 terms of the sequence: –3, 1, 5, 9, . . .A) 45B) 42C) 48D) 25
Leni [432]

SOLUTION

From the sequence give

–3, 1, 5, 9, . . .

The first term, a = -3

The common difference, d = 4 (gotten by adding 4 to the next term).

The number of terms required n = 6.

Formula for sum of an arithmetic sequence is given by

S_n=\frac{n}{2}\lbrack2a+(n-1)d\rbrack

Substituting these values into the equation above we have

\begin{gathered} S_n=\frac{n}{2}\lbrack2a+(n-1)d\rbrack \\ S_6=\frac{6}{2}\lbrack2\times-3+(6-1)4\rbrack \\ S_6=3\lbrack-6+(5)4\rbrack \\ S_6=3\lbrack-6+20\rbrack \\ S_6=3\lbrack14\rbrack \\ S_6=42 \end{gathered}

Hence, the answer is 42, option B

3 0
1 year ago
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