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3 years ago

Solve: 2/3 x - 4 = -2 A) -3 B) -4 C) -9 D) 3

Mathematics

2 answers:

Mumz [18]3 years ago

5 0

Answer: x = 3

Step-by-step explanation: First, isolate the x term by adding 4 to

both sides of the equation. We get 2/3x = 2.

Next, multiply both sides of the equation by the

reciprocal of 2/3 which is 3/2 to get x by itself.

So we have (3/2) 2/3x = 2 (3/2).

On the left, (3/2) 2/3 cancels and we have x.

On the right, the 2's cancel and we have 3.

So x = 3 is our answer.

Lynna [10]3 years ago

4 0

D. x=3

2/3 x 3/1 = 6/3 or 2. 2-4= -2

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Your answer should be a polynomial in standard form.<br> (x + 4)(x + 6)

ipn [44]

Step-by-step explanation:

x^2 +10x + 24

use FOIL

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3 years ago

Chapter 6, Section 1-D, Exercise 009 Is a Normal Distribution Appropriate? In each case below, is the sample size large enough s

Xelga [282]

Answer:

Step-by-step explanation:

Complete Question:

Chapter 6, Section 1-D, Exercise 009 Is a Normal Distribution Appropriate? In each case below, is the sample size large enough so that the sample proportions follow a normal distribution?

a) n=600 p=0.2

b) n=20, p=0.4

if np=10 and npq=10 then the data follows normal distribution

a) np= 120,

q= 1-0.2= 0.8

npq= 600 ×0.2×0.4 = 48

Normal distribution is appropriate and sample size is large enough

b) np= 8

q= 1-0.4= 0.6

npq= 20 × 0.4×0.6= 4.8

sample size is not large enough so normal distribution is not appropriate.

4 0

3 years ago

Can you help asap pls

jeka94

2 + 2 = 4 5 + 5 = 10 + 4 = 14 your answer is 14

Step-by-step explanation:

4 0

3 years ago

Hello, can someone help me with this. I had a brain fart and don’t remember how to do it.

igor_vitrenko [27]

Answer:

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7 0

3 years ago

Naoya read a book cover to cover in a single session, at a rate of 555555 pages per hour. After reading for 444 hours, he had 33

siniylev [52]

Answer:

<h3>The function formula for the number of pages left to read is given by P(t)=55(10-t).</h3>

Step-by-step explanation:

Given that "Naoya read a book at a rate of 55 pages per hour".

After reading book for 4 hours, he had 330 pages remaining to read.

In 4 hours, Naoya must read is given by

$\frac{55}{1hr}\times 4hr$ ( by given)

$=220$

<h3>∴ In 4 hours, Naoya must read 220 pages</h3>

From the given there were 330 pages remaining to read at the time,

The total number of pages is given by

=220+330

=550

<h3>∴ The total number of pages is 550 </h3>

For each hour of reading, Naoya reads 55 pages, so the number of pages he finished reading by the "t"th hour is given by 55t

Let P(t) be the number of pages to read where P is a function of time t (measured in hours)

So the number of pages left to read is given by

P(t)=550-55t

P(t)=55(10-t)

<h3>∴ the function formula for the number of pages left to read is given by P(t)=55(10-t).</h3>

3 0

3 years ago