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Tema [17]
3 years ago
13

I don't know how to do this?

Mathematics
2 answers:
Alborosie3 years ago
8 0
All you gotta do is set each of the parentheses equal to zero and solve for x
Ex x+7=0 => x= -7
x+4=0 => x= -4
miskamm [114]3 years ago
7 0
Do you know foil? FOIL= First,Outside,Inside, and Last

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The area of section 1 is _____ square feet, the area of section 2 is _____ square feet, and the area of section 3 is _____ squar
nignag [31]

Answer:32 ft

Step-by-step explanation:

7 0
3 years ago
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Simplify (−4.5)(−6)(5.4).
Fynjy0 [20]
The answer to (-4.5)(-6)(5.4)= 137.7
4 0
3 years ago
Samantha has a rectangular shaped fish tank in her room. The tank has a height of 2.6 ft, a width of 2.1 ft, and a length of 3.9
andrezito [222]

Answer: the BEST approximation of the amount of water her fish tank can hold is 21ft^3

Step-by-step explanation:

The shape of Samantha's fish tank is rectangular. The volume of the rectangular fish tank would be expressed as LWH

Where

L represents length of the tank

W represents the width of the tank.

H represents the height of the tank.

The tank has a height of 2.6 ft, a width of 2.1 ft, and a length of 3.9 ft.

This means that the volume of the fish tank would be

Volume = 2.6 × 2.1 × 3.9

= 21.294 ft^3

7 0
3 years ago
A box has dimensions of 14 inches long, 1.5 feet wide, and
Liula [17]
1764 inches cubed. First you multiply 1.5 times 12 so that it is in inches. Then u get 18. U multiply 14 by 18 by 7 and u get 1764.
7 0
3 years ago
1. A study of college freshmen found that students who watched TV for more than one hour each night gained 15 pounds in the firs
umka21 [38]

Answer:

C.  They most likely used an observational study asking students to keep track of their TV habits and weight.

A.  This is an experiment because a treatment was applied to a group.

Step-by-step explanation:

According to our question:

1. The study concluded that there is a relation between watching TV and the weight gain in college freshmen.

Now, this is possible when a group of college students were asked to participate to watch TV for more than 1 hour for a specific amount of time and have a record of their weights.

So, the study is an observational study where the habits and weights of college students were observed.

Hence, option C is correct.

2. The students were divided onto two groups where one group used the computer program and the other did not to check the improvement in the reading levels.

This means that the students were given a procedure to follow during the study in order to see the results..

So, the study is an experiment where a treatment is applied to the group of students.

Hence, option A is correct.

8 0
3 years ago
Read 2 more answers
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