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melisa1 [442]
3 years ago
8

Evaluate the expression 12x + 7 when x = 8 (Hint substitute x for 8, multiply, then add 7)*

Mathematics
1 answer:
kicyunya [14]3 years ago
7 0
Answer: 103
Step by step: plug in 8 in the x spot 12(8) + 7
Multiply 12 by 8 = 96
Then add 7: 96+7=103
You might be interested in
What is the circumference of a circle when the diameter is 34
lilavasa [31]

Answer:

the circumference is C = 34π units.

Step-by-step explanation:

The circumference of a circle of diameter d is C = πd.

Here the diameter is 34 units.  Thus, the circumference is C = 34π units.

4 0
3 years ago
This too!! Once again, thank you!
Volgvan

Answer:

For question 3, the slope would be -5

Step-by-step explanation:

If you wanted to graph this you would have to plot one of the points that is already given. Then from that point, you would move 5 units down and 1 unit to the right. If you run out of space, you can go to the other direction by going 5 units up and 1 to the left.

Hope this helps :)

8 0
3 years ago
While passing a slower car on the highway, i accelerate uniformly from 12 m/s to 24 m/s in a time of 10.0s. How far do you trave
Taya2010 [7]
You say that there is uniform acceleration so:

vf-vi=at  (final velocity minus initial velocity is equal to acceleration times time)

We know vf, vi, and t so we can solve for acceleration:

24-12=a10

12=10a

a=1.2

That is the acceleration, we will need to integrate with respect to time twice...

v=⌠a dt

v=at+vi  , we know a=1.2m/s^2 and vi=12m/s

v=1.2t+12, 

x=⌠1.2t+12 dt

x=1.2t^2/2+12t+xo, we can just let xo=0 for this problem...

x(t)=0.6t^2+12t

Now we know that this acceleration lasts for 10 seconds so the distance traveled in that time is:

x(10)=0.6(10^2)+12(10)

x(10)=60+120

x(10)=180 meters
6 0
3 years ago
What is the solution to the equation negative (5 minus (a 1)) = 9 minus (5 minus (2a minus 3))? a = –5 a = –3 a = 3 a = 5
e-lub [12.9K]

The solution for the given equation is a = -5.

<h3>What is an equation?</h3>
  • An equation is a formula in mathematics that expresses the equality of two expressions by connecting them with the equals sign =.

To find the solution to the given equation:

Negative (5 minus (a + 1)) = 9 minus (5 minus (2a minus 3)) can be expressed mathematically as follows.

  • - (5 - (a + 1)) = 9 - (5 - (2a - 3))

Using the principle of PEMDAS, all the parenthesis values are first solved.

  • - (5 - a - 1) = 9 - (5 - 2a + 3)
  • -5 + a + 1 = 9 - 5 + 2a - 3

Collect like terms:

  • -5 + 1 - 9 + 5 + 3 = 2a - a
  • -5 = a

That is a = -5.

Therefore, the solution for the given equation is a = -5.

Know more about equations here:

brainly.com/question/2972832

#SPJ4

The correct question is given below:
What is the solution to the equation Negative (5 minus (a + 1)) = 9 minus (5 minus (2a minus 3))? a = –5 a = –3 a = 3 a = 5

5 0
2 years ago
PLS HELP WILL MARK BRAINLIEST!
sukhopar [10]

Answer:  Approximately 21.667 km

This value as a fraction is 65/3, but I think the decimal form is probably more practical in real world settings.

======================================================

Work Shown:

20 min = 1/3 of an hour, since 20/60 = 1/3. In other words, there are three chunks of 20 minutes that make up a full hour.

distance = rate*time

distance = (65 kph)*(1/3 hr)

distance = (65*1/3) km

distance = (65/3) km

distance = 21.667 km which is approximate

8 0
3 years ago
Read 2 more answers
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