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3 years ago

Which expression is equivalent to the following expression? 4.8 (2-3x) + 1.2x

Mathematics

1 answer:

romanna [79]3 years ago

8 0

Answer:

−13.2x+9.6

Step-by-step explanation:

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In which quadrant is the point (5,-2) located?

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Quadrant Four (IV) since the x coordinate is a positive and the y coordinate is a negative.

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3 years ago

Ratios equivalent to 16:12

Artyom0805 [142]

Answer:

$\frac{16}{12}$ equivalent to $\frac{ 4}{3}$

Step-by-step explanation:

Given ratio, $\frac{16}{12}$

It can be written as $\frac{16}{12}=\frac{4 \times 4}{4 \times 3}$

cancel common factor,

$\frac{16}{12}=\frac{ 4}{3}$

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3 years ago

45 less than twice Jose’s savings. Use the variable J to represent Jose’s savings

allochka39001 [22]

The answer is
(J•2)-45=

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3 years ago

Which one should I choose

Anestetic [448]

Answer:

C. 10x^2

Step-by-step explanation:

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3 years ago

Pioneer company has given an aptitude test to 71 potential job applicants. The test score had an average of 81 and a standard de

Agata [3.3K]

Answer:

Follows are the solution to the given points:

Step-by-step explanation:

In point A:

$\to df = n - 1 = 71-1= 70$

In point B:

$\to t = \frac{(x -X)}{s} = \frac{(93-81)}{8} = \frac{12}{8}= 1.5$

In point C:

For df = 70, the top 5% critical t score

tcrit = 1.666914479

Thus,

$\to 1.666914479 = \frac{(x - 81)}{8}\\\\\to 1.666914479 \times 8 = (x - 81)\\\\\to 13.335315832 = (x - 81)\\\\\to 13.335315832 +81 =x \\\\\to x= 94.335315832$

In point D:

For df = 70, the top 5% critical t score

tcrit = -1.666914479

$\to -1.666914479 = \frac{(x - 81)}{8}\\\\\to -1.666914479 \times 8= (x - 81)\\\\\to -13.335315832= (x - 81)\\\\\to -13.335315832+81 = x \\\\\to x = 67.664684168\\\\$

In point E:

The lower cutoff is 0.10 in the center, which would be around 80 %. The critical point therefore is

tcrit = -1.293762898

$\to -1.293762898 = \frac{(x-81)}{8}\\\\\to -1.293762898 \times 8= (x-81) \\\\\to -1.293762898 \times 8= (x-81) \\\\\to -10.350103184=x-81\\\\\to -10.350103184+81=x\\\\\to x=70.649896816$

In point F:

The lower cutoff is 0.90 in the center, which would be around 80 %. The critical point therefore is

tcrit = 1.293762898

$\to 1.293762898 = \frac{(x-81)}{8}\\\\\to 1.293762898 \times 8= x-81\\\\\to 10.350103184 =x-81\\\\\to 10.350103184 +81=x\\\\\to x = 91.350103184\\$

5 0

3 years ago

Which expression is equivalent to the following expression? 4.8 (2-3x) + 1.2x​

Which expression is equivalent to the following expression? 4.8 (2-3x) + 1.2x