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Elenna [48]
3 years ago
15

Find the following for the function f(x)=3x2+2x−3.

Mathematics
1 answer:
N76 [4]3 years ago
8 0

Answer:

- 3

Is the correct answer

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A rectangular shelf has an area of 40 square inches. Its perimeter is 28 inches. What are the dimensions of the shelf?
Reptile [31]

Answer:

4 by 10

Step-by-step explanation:

4 times 10 is 40 (length times width)

4+4+10+20=28

7 0
3 years ago
The sales tax charged on a $40 dress was $3.20. What is the sales tax rate charged on the dress?
Gnoma [55]

Answer:

It's 8%

Step-by-step explanation:

3.20 divided by 40 = 0.08

0.08 = 8% therefore $3.20 divided by $40.00 = 8% sales tax

5 0
3 years ago
Dolores bought 15 party hats priced at $0.75 each and 15 noisemaers priced at
Sindrei [870]
30 bucks hope this helps
8 0
3 years ago
Log(-2x+9)= log(7-4x)
expeople1 [14]

Answer:

x = -1

Step-by-step explanation:

log(-2x+9)= log(7-4x)

becomes:

-2x + 9 = 7 - 4x   as long as these are not negative

2x + 9 = 7

2x = -2

x = -1

check

-2*(-1) + 9 = 2 + 9 = 11

ok

5 0
3 years ago
Many realistic application involve sampling without replacement. For example, in manufacturing, quality control inspectors sampl
stich3 [128]

Answer:

a. possible sample size is 10

b. mean is 3

c standard deviation is 0.9

Step-by-step explanation:

Mean of any given set of numbers is the "average" you're used to, where you add up all the numbers and then divide by the number of numbers.

Standard deviation is a measure of the amount of variation or dispersion of a set of values.

Go to attachment for detailed analysis.

4 0
4 years ago
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