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2 years ago

Smith Automotive needs to hire a new mechanic. They decide to place an

Mathematics

2 answers:

mr_godi [17]2 years ago

8 0

Answer:

equation: y = 5(x-5) + 45

Explanation:

Here "y" represents the total money earned. "x" represents the earning from additional line. the constant variable is "45" and does not change.

zloy xaker [14]2 years ago

6 0

Answer:

y = 45 + 5(x - 5)

where y is the total cost of the ad, and x is the total number of lines in the ad

Step-by-step explanation:

Let x = number of lines in the ad

Let y = total cost

If the cost of the ad is $45 for the first 5 lines and $5 for each additional line then the expression for the total cost of the ad is:

y = 45 + 5(x - 5)

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I need help with this!

AleksAgata [21]

9514 1404 393

Answer:

64.6

Step-by-step explanation:

One standard deviation is 4.3. Then +2 standard deviations is ...

(+2)(4.3) = +8.6

This amount added to the mean gives ...

56 +8.6 = 64.6 . . . . +2σ from the mean

5 0

2 years ago

Two semicircles are attached to the sides of a rectangle as shown.

melomori [17]

Answer:

$157\ in^{2}$

Step-by-step explanation:

we know that

The area of the figure is equal to the area of rectangle plus the area of two semicircles

The area of rectangle is equal to

$A=14*5=70\ in^{2}$

The area of the small semicircle is equal to

$A=\pi r^{2} /2$

$r=5/2=2.5\ in$ -----> radius is half the diameter

substitute

$A=(3.14)(2.5^{2})/2=9.8125 in^{2}$

The area of the larger semicircle is equal to

$A=\pi r^{2} /2$

$r=14/2=7\ in$ -----> radius is half the diameter

substitute

$A=(3.14)(7^{2})/2=76.93\ in^{2}$

The area of the figure is equal to

$70+9.8125+76.93=156.7425=157\ in^{2}$

8 0

3 years ago

Read 2 more answers

Given the sequence 4,16,64

umka2103 [35]

A. Geometric

b. a curve sloping steeply upwards (exponential)

c. nth term an = a1r^(n-1)

nth term = 4(4)^(n-1)

4 0

3 years ago

Factor by grouping x^3+2x^2-9x-18

netineya [11]

Answer:

(x+2)(x+3)(x-3)

Step-by-step explanation:

Group and factor out the greatest common factor (GCF), then combine.

Hope this helps!!

6 0

3 years ago

Find the 25th term of the arithmetic sequence when a1 = -14 and d = -5

rosijanka [135]

Answer:

a25 = -134

Step-by-step explanation:

For first term a1 and common difference d, the formula for the n-th term is ...

an = a1 + d(n -1)

You want to evaluate this for n=25, a1=-14, d=-5. Filling in the numbers and doing the arithmetic, you get ...

a25 = -14 -5(25 -1) = -14 -120

a25 = -134

6 0

3 years ago