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insens350 [35]
3 years ago
7

Please help me with question 9 please

Mathematics
1 answer:
bazaltina [42]3 years ago
3 0

Answer:

22(12) - 18

Step-by-step explanation:

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If f(x) = 1/3x^2 + 5, find f(-9).<br> A. 248<br> B. -22<br> C. 11<br> D. 32
melamori03 [73]

Answer:

D. 32

Step-by-step explanation:

For this problem, we simply plug -9 in for x in f(x):

f(x)=\frac{1}{3} x^2+5  ⇒  f(9)=\frac{1}{3} *(9^2)+5=\frac{1}{3} *81+5=27+5=32

Thus, the answer is D. 32.

Hope this helps!

7 0
3 years ago
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Find the area of the polygon to the nearest square inch.
SVETLANKA909090 [29]

Answer:

137 in.^2

Step-by-step explanation:

A = nsa/2

where

n = number of sides = 9

s = length of side = 4.7 in.

a = length of apothem = 6.5 in.

A = (9)(4.7 in.)(6.5 in.)/2

A = 137.475 in.^2

Answer: 137 in.^2

5 0
3 years ago
The price of a wallet is $31.95 and the sales tax is 7.5%.
Musya8 [376]

Answer:

34.35

Step-by-step explanation:

8 0
3 years ago
9.6x10^85/3x10^63 in scientific notation
Novosadov [1.4K]

Answer:

<em>3.27*10^22</em>

Step-by-step explanation:

Given the expression 9.6x10^85/3x10^63, we are to write it on scientific notation as shown:

9.6x10^85/3x10^63

= (9.8/3) * (10^85/10^63)

= (9.8/3)  * 10^{85-63}

= (9.8/3) *10^22

= 3.27 *10^22

<em>Hence the expression in scientific notation is  3.27*10^22</em>

6 0
3 years ago
What is the solution to the equation 6t = 114
Tpy6a [65]
Divide the 114 by 6t to get an anwer

7 0
3 years ago
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