2 years ago

Simplify and rationalize the expression.

Mathematics

1 answer:

alexandr402 [8]2 years ago

5 0

~-2.15139............ hope it helps

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She bought <br> 314yards of fabric. Her total cost was $13. What was the cost per yard?

Step2247 [10]

Answer:

$24.15 (answer is rounded)

Step-by-step explanation:

314/13= 24.15

I also used a calculator

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2 years ago

How can 1/5x − 2 = 1/3x + 8 be set up as a system of equations? a . 5y − 5x = −10. 3y − 3x = 24 b. 5y − 5x = −10. 3y + 3x = 24 c

VMariaS [17]

The answer is d. 5y − x = −10. 3y − x = 24

$\frac{1}{5}x-2= \frac{1}{3}x+8=y$
⇒    $y= \frac{1}{5}x-2$
   $y= \frac{1}{3}x+8$
________________________
$y= \frac{x}{5} -2= \frac{x}{5} - \frac{10}{5} = \frac{x-10}{5}$
$y= \frac{x}{3} +8= \frac{x}{3} + \frac{24}{3} = \frac{x+24}{3}$
________________________
$y= \frac{x-10}{5}$ ⇒    $5y=x-10$
$y= \frac{x+24}{3}$   ⇒    $3y=x+24$
________________________
$5y-x=-10$
$3y-x=24$

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3 years ago

Express the confidence interval 0.777 ộHE = +0

Lostsunrise [7]

He’s right For the answer

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3 years ago

Find the slope from the points given: <br> (18, -5), (18, 20)

Ivahew [28]

Answer:

UNDEFINED

Step-by-step explanation:

change in y over the change in x is how you'd find slope, however, x is the same in both of these, making this a limitation not an equation, therefore the slope is undefined 18-18 = 0 -> Anything divided by zero as a slope is undefined.

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lina2011 [118]

The answer to this mathematical question is 3

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