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2 years ago

Evaluate 8+3e when e=2

Mathematics

2 answers:

Mice21 [21]2 years ago

6 0

Answer:

Step-by-step explanation:

8 + 3e

e = 2

substitute in the given value

8 + 3(2)

simplify

8 + 6

galben [10]2 years ago

5 0

Answer: 14

Step-by-step explanation: Here, we have the expression 8 + 3e

and we want to evaluate the expression when e = 2.

To evaluate an expression, we simply plug the

value of the variable into the expression, and solve.

So here, since e = 2, we have 8 + 3(2).

3(2) is equal to 6 so we have 8 + 6, which is equal 14.

It’s a good idea to get into the habit of using parentheses

when substituting numbers in for variables.

So the value of our expression when e = 2 is 14.

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Nikitich [7]

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2 years ago

What is the slope for the line that goes through the points?

sweet [91]

Answer: 2/1x

Step-by-step explanation:

you follow the graph from the y intercept to the next point

up 2 over 1

4 0

3 years ago

Read 2 more answers

What is the slope of the line represented by the table below?

gayaneshka [121]

9/5

If you choose two points you can find the equation change in y/change in x (y2-y1)/(x2-x1). Using the first two points this looks like:

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7 0

3 years ago

The number of students who picked each subject is shown.

Naddik [55]

Answer: 90% of students did NOT choose history.

Step-by-step explanation:

Art - 32.5%

Spanish - 7.5%

ELA - 10%

Math - 15%

Science - 25%

When added altogether each subject equals 90%, leaving the other 10 percent history. 90% is our answer since that is the number of people that voted for subjects other than history.

Hope This Helped, Have A Great Day!

5 0

3 years ago

When the solutions are going to be complex, which methods can be used to solve quadratic equations?

yKpoI14uk [10]

You could complete the square to state the vertex.
You could use the quadratic equation to find the roots (which are complex).

Try an example that will require both.

y = x^2 + 2x + 5

Step One
Get the graph. That's included below.

Step Two
Provide the steps for completing the square.
Note: we should get (-1,4)

y= (x^2 +2x ) + 5
y = (x^2 +2x + 1) + 5 - 1
y = (x +1)^2 + 4

The vertex is at (-1,4)

Step Three
Find the roots. Use the quadratic equation. Note that the graph shows us that the equation never crosses or touches the x axis. The roots are complex.

$\text{x = }\dfrac{ -b \pm \sqrt{b^{2} - 4ac } }{2a}$

a = 1
b = 2
c = 5

$\text{x = }\dfrac{ -2 \pm \sqrt{2^{2} - 4*1*5 } }{2}$
$\text{x = }\dfrac{ -2 \pm \sqrt{4 - 20 } }{2}$
$\text{x = }\dfrac{ -2 \pm \sqrt{-16 } }{2}$
$\text{x = }\dfrac{ -2 \pm 4i }{2}$
x = -1 +/- 2i

x1 = -1 + 2i
x2 = -1 - 2i And we are done.

7 0

3 years ago