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3 years ago

What is the slope of a line perpendicular to the line y=3x+5?

Mathematics

1 answer:

Nataliya [291]3 years ago

3 0

Answer:

-1/3

Step-by-step explanation:

Find the negative reciprocal of the slope of the original line.

Hope this help and not wrong!!!

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For each of the bookcases a woodworker is building, she

Naya [18.7K]

35x100 hours = $3500+$65= $3565 for 100 hours of work and materials.

7 0

3 years ago

Read 2 more answers

What is the value of 7(x+4)² - 3x when x = 2?

sdas [7]

Answer: the value of 7x-y is -14.

Step-by-step explanation:

When x=2 and y=4,

To find the value of 7x - y when x =2, y = 4, this means when ever you see x, put 2 in replacement, y, put 4 respectively.

7x - y = 7(2 - 4)

14 - 28

= -14.

5 0

3 years ago

The function C(x)=−20x+1681 represents the cost to produce x items. What is the least number of items that can be produced so th

Reptile [31]

Answer:

<em>The least number of items to produce is 41</em>

Step-by-step explanation:

<u>Average Cost</u>

Given C(x) as the cost function to produce x items. The average cost is:

$\displaystyle \bar C(X)=\frac{C(x)}{x}$

The cost function is:

$C(x) = -20x+1681$

And the average cost function is:

$\displaystyle \bar C(X)=\frac{-20x+1681}{x}$

We are required to find the least number of items that can be produced so the average cost is less or equal to $21.

We set the inequality:

$\displaystyle \frac{-20x+1681}{x}\le 21$

Multiplying by x:

$-20x+1681 \le 21x$

Note we multiplied by x and did not flip the inequality sign because its value cannot be negative.

Adding 20x:

$1681 \le 21x+20x$

$1681 \le 41x$

Swapping sides and changing the sign:

$41x \ge 1681$

Dividing by 41:

$x\ge 41$

The least number of items to produce is 41

8 0

3 years ago

osiah invests $360 into an account that accrues 3% interest annually. Assuming no deposits or withdrawals are made, which equati

sammy [17]

The standard compound interest formula is

Future value after x years with an annual interest of i

=Present Value (1+i)^x [which is an exponential function]

for given present value of $360. interest=0.03 (3%) and a total of x years, above equation reduces to

Future value after x years

=360(1.03^x)

4 0

3 years ago

If you bought 28 shares of stock at $30/sh and sold them at $25/sh. And How much did you net after selling the shares? Was it a

Strike441 [17]

Answer:

selling price$840

it's a loss.

Step-by-step explanation:

cost price = 28× 30 = $840

selling prince =25×28=$700

since cost price is bigger than selling price, it's a loss.

5 0

3 years ago