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3 years ago

Find f(-3) it f(x) =x^2

Mathematics

1 answer:

xeze [42]3 years ago

4 0

Answer:

Step-by-step explanation:Replace the variable

x with − 3 in the expression. f ( − 3 ) = ( − 3 ) 2 Simplify (− 3 ) 2 . Remove parentheses. ( − 3 ) 2 Raise − 3 to the power of 2 . 9

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Given the equation 3x+7 which order of operations completely solves for x

inn [45]

Answer-7/3

Step-by-step explanation:

6 0

3 years ago

Only 6. Please and thanks

salantis [7]

Answer:

Part a) $7.536\ m$

Part b) $\$34.14$

Step-by-step explanation:

Part 6)

a) How much edging is needed?

we know that

To find out how much edging is needed determine the circumference of the circular garden

The circumference of the circular garden is equal to

$C=\pi D$

where

D is the diameter

we have

$D=2.4\ m$

assume

$\pi =3.14$

substitute

$C=(3.14)(2.4)$

$C=7.536\ m$

Part b) we know that

To find out the cost to edge the garden, multiply the length of edging plastic needed by the cost of $4.53 per meter

$(7.536\ m)(4.53\ \$/m)=\$34.14$

8 0

3 years ago

Please answer this correctly

Ulleksa [173]

Answer:

37.5%

Step-by-step explanation:

So the original fraction is 3/8 and we can’t simplify it so we gotta turn it into a percent, and we can do that by dividing 3 and 8nto get .375 so the percent is 37.5%.

7 0

3 years ago

Read 2 more answers

I need a lot of help with this problem lol. I need help finding the mean, median, mode, and range for the numbers .06, 1.10, .75

son4ous [18]

Answer:

mean = 0.76

median = 0.75

range = 1.79

Step-by-step explanation:

mean = sum/no of items

for media they need to be sorted: 0.05,0.06,0.75,1.10,1.84

median is the middle item, so 0.75

range = largest item - smallest item = 1.84 - 0.05 = 1.79

3 0

3 years ago

An automobile shop manager timed 27 employees and recorded the time, in minutes, it took them to change a water pump. Assuming n

SSSSS [86.1K]

Answer:

Excel attached with the solution.

Step-by-step explanation:

Mean

$\bar{x}=\frac{\sum x_{i}}{n}$

Standard deviation

$sd=\sqrt{\frac{\sum (x_{i}-\bar{x})}{n-1}}$

Confidence interval

$\bar{x} \pm z_{\alpha}*sd/\sqrt{n}$

The formulas used are in the Excel file attached.

Download xlsx

6 0

3 years ago