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salantis [7]
3 years ago
5

What is the solution of −21 = n − 8?

Mathematics
2 answers:
PilotLPTM [1.2K]3 years ago
8 0

Answer:

N=-13

Step-by-step explanation:

In-s [12.5K]3 years ago
6 0

Answer:

-13 = n

Step-by-step explanation:

When working with equations you have to get the variable (n) by itself. You would add +8 to both negative 8 and negative 21, this would eliminate the 8, and then you would add the eight to negative 21, (21-8), which equals 13. And then add the negative sign back on, equaling -13.

I hoped this helped^^

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>
kondor19780726 [428]

Answer:

23 degrees

Step-by-step explanation:

Find the diagram attached

The sum of angle on the straight line is 180°

103+3x+15+x+10 = 180

128+4x =180

4x = 180-128

4x = 52

x = 52/4

x = 13

The measure of the angle of the intersection between Derby Drive and Rosemont is x+10

= 13+10

= 23 degrees

Hence the measure of the angle is 23 degrees

5 0
3 years ago
What else would need to be congruent to show that ABC=DEF by SAS?
KonstantinChe [14]

Answer:

A

Step-by-step explanation:

SAS = side-angle-side

This means that, in order to prove that the triangles are congruent, they must have two congruent sides with the angle between them to the same.

We know that sides AB, ED, AC, and DF are all congruent as they all have a single mark through them. From this, you can conclude that the triangles already share two sides. All we need now is the angles in between to be congruent. This means that angle A and angle D need to be congruent.

I hope this helps!

7 0
3 years ago
The confidence interval based on the two-sample design is wider because there is considerable variation in mileage between the c
vovikov84 [41]

Answer:

The confidence interval based on the paired design is wider because there is little variation in mileage between the cars.

Step-by-step explanation:

The sample size randomly collected is matched sample and since the confidence interval is based on the paired design is large and wide. There is small variation between the mileage of the two cars indicating the cars have mileage based on the fuel.

5 0
3 years ago
What is the value of x? 6.75+3/8x=13 1/4
zysi [14]
Your answer is x=17 1/3
4 0
3 years ago
Read 2 more answers
How do you write 94,300 in scientific notation
Andrew [12]

Answer:

9.44 x 10^4 in scientific notation

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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