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3 years ago

5-x<8;x=-3 how do you solve that?

Mathematics

1 answer:

Sergio [31]3 years ago

8 0

Make sure you substitute x for 3

The equation would be:

5-3<8

Subtract 3

2<8

The statement is true

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A grocery store steak sells $6.00 per pound. What would be the cost of 2.6 pounds of steak?

Contact [7]

2.6 x 6 = $15.6 . That’s the answer I’m pretty sure! Goodluck!

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3 years ago

Terri is rewriting 7^13 in expanded form. How many factors should she use in her expression?

Mazyrski [523]

She should use 13 factors.
All 13 factors are the same thing . . . 7 .

7^13 should be written as 7¹³ .

It means: 7·7·7 · 7·7·7 · 7·7·7 · 7·7·7 · 7

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2 years ago

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The function s(t) represents the position of an object at time t moving along a line. Suppose s(2)=150 and s(5)=237. Find the a

trapecia [35]

Answer:

29 is answer.

Step-by-step explanation:

Given that the function s(t) represents the position of an object at time t moving along a line. Suppose s(2)=150 and s(5)=237.

To find average velocity of the object over the interval of time [1,3]

We know that derivative of s is velocity and antiderivative of velocity is position vector .

Since moving along a line equation of s is

use two point formula

$\frac{s-150}{237-150} =\frac{t-2}{5-2} \\s=29t-58+150\\s=29t+92$ gives the position at time t.

Average velocity in interval (1,3)

= $\frac{1}{3-1} (s(3)-s(1))\\=\frac{1}{2} [87+58-29-58]\\=29$

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3 years ago

For a sample of similar sized all-electric homes, the march electric bills were (to the nearest dollar): $212, $191, $176, $129,

miss Akunina [59]

Lowest to highest...

Range = $92 – $212 ...//Ans...

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3 years ago

Piper is deciding whether she should pursue an education in engineering or in public communications. She has researched that a p

arlik [135]

Answer:

A public communications director would make $1,196,800 over a period of 20 years.

Step-by-step explanation:

The median salary of an engineer is $73,400 per year.

Piper has researched that a public communications director makes $13,560 less than this. (so we need to take this amount from the salary of an engineer)

Therefore, we would have that a public communications director would make

73,400 - 13,560 = $59, 840 per year

Now, the problem asks us how much a public communications director will make over a period of <u>20 years</u>, thus, we have to multiply the amount she will get per year by 20.

Thus, over 20 years she would make: <u>59,840 x 20</u> = $1,196,800

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2 years ago