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lakkis [162]
3 years ago
15

Evaluate the expression for the given value of x

Mathematics
2 answers:
viktelen [127]3 years ago
8 0

Answer:

1. 3               2. 4

Step-by-step explanation:

1. 2+8+(-7)

2+8-7

3

2. 4+7+(-7)

4+7-7

4

coldgirl [10]3 years ago
5 0

Answer:

x =-1

Step-by-step explanation:

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Use distributive property<br> 4​(x-​5)=3​(x+​5)
Soloha48 [4]

4​(x-​5)=3​(x+​5)

Multiply the first bracket by 4

(4)(x)=4x

(4)(-5)=-20

Multiply the second bracket by 3

(3)(x)=3x

(3)(5)=15

4x-20=3x+15

Move 3x to the other side

Sign changes from +3x to -3x

4x-3x-20=3x-3x+15

4x-3x-20=15

x-20=15

Move -20 to the other side

Sign changes from -20 to +20

x-20+20=15+20

x=15+20

Answer: x=35

7 0
4 years ago
A triangle has side lengths 1.5 inches, 2 inches, and 3 inches. Is the triangle a right triangle
Alexandra [31]
No, for it to be a right triangle the last length would need to be 2.5 not 3
7 0
2 years ago
When the input of the function is -4 what is the output of the function
IceJOKER [234]

Answer:

The output is 5

Step-by-step explanation:

-4 is the input (x value). To find the output, you have to find where -4 is on the line. -4 is on the line when 5 is the y coordinate (output).

8 0
3 years ago
People in Spaceland live in 8 space stations, and travel between the stations in tubes.Every pair of stations is connected by tw
NeTakaya

Based on the way these stations are connected, we can infer that there are <u>56 tubes. </u>

<h3>Number of tubes in Spaceland </h3>

Each pair of stations have 2 tubes. This means that every station is connected to each of the others.

We can therefore infer that each station has 7 tubes to the other stations.

The total number of tubes would therefore be:

= Number of stations x Number of tubes per station

= 8 x 7

= 56 tubes

In conclusion, there are 56 tubes.

Find out more on proportionality problems at brainly.com/question/24822176.

3 0
2 years ago
Read 2 more answers
Assume that China has about 1 billion people, an increase of 15 million would result in a relative change of ___%
seraphim [82]

Answer:

1.5%.

Step-by-step explanation:

The fractional increase is 15,000,000 / 1,000,000,000

= 15/1000

= 15 * 100 / 1000

= 1.5%

5 0
3 years ago
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