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Setler79 [48]
3 years ago
9

Simplify each expression

Mathematics
1 answer:
Verizon [17]3 years ago
8 0

Answer:

  1. -5n-1
  2. 72b+56

Step-by-step explanation:

<h2>Q: -(5n-1)-2</h2>
  • -5n+1-2
  • -5n-1
<h2>Q: -8b+8 (10b+7)</h2>
  • -8b+80b+56
  • 72b+56
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A graph titled velocity versus time has horizontal axis time (seconds) and vertical axis velocity (meters per second). A line ha
AnnyKZ [126]

Acceleration is the change in velocity with respect to the time. The acceleration of the car at segment C is -30 meter per second squared. Hence the option B is the correct option.

<h3>Given information-</h3>

Segment A runs from 0 seconds 0 meters per second to 1 seconds 30 meters per second.

Segment B runs to 3 seconds 30 meters per second.

Segment C runs to 6 seconds 10 meters per second.

Segment D runs to 7 seconds 10 meters per second.

Segment E runs to 10 seconds 20 meters per second.

<h3>Acceleration</h3>

Acceleration is the change in velocity with respect to the time. Acceleration of a vector quantity which means it has both magnitude and the direction. It can be given as,

a=\dfrac{\Delta v}{\Delta t}

Here t denotes the time and v denotes the velocity of the body.

Acceleration at segment C,

a_c=\dfrac{10-40}{6-5}

a_c=-30

Thus the acceleration of the car at segment C is -30 meter per second squared. Hence the option B is the correct option.

Learn more about the acceleration here;

brainly.com/question/2437624

4 0
3 years ago
Read 2 more answers
I need help I’m confused
Novosadov [1.4K]

Answer:

Step-by-step explanation:

I belive the answer would be 18.30$, because if 1 hat is 6.70$ you mutiply it by 13 and which is 87.10$ -  325$ overall and the which is 237.9 then diveied that by 13 and get 18.30$ for each ball?

3 0
3 years ago
The triangular top of an end table has a height of 32 centimeters and a base of 40 centimeters. What is the surface area of the
kirill [66]
The formula for the area of a triangle is half the base times the height. So 1/2 x 40 x 32 = 640cm^2
8 0
3 years ago
I need mega help quick plz
Blizzard [7]

Answer:

<h3> option A</h3>

Angle B is the answer

5 0
3 years ago
((Simplify): 7a+1 +9 × 7a÷7a+2_45 ×7a​
Dimas [21]

Answer:

7a+1 +9 × 7a÷7a+2- 45 ×7a

7a+1 +9 × 1+2-45 ×7a

7a+1 +9 + 2-315a

7a+12-315a

12-308a

4(3-77a)

5 0
3 years ago
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