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Luba_88 [7]
3 years ago
8

Which 2 statements are TRUE about Exponential Functions?

Mathematics
1 answer:
storchak [24]3 years ago
5 0
The true statements are:
<span>The equation has a variable in the exponent position.
</span><span>The graph has a variable rate of change which causes it to have a curved shape.

These are the defining characteristics of an exponential function.</span>
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Two mechanics worked on a car. The first mechanic to work for 5 Hours in the second mechanic work for 15 Hours. Together they ch
Butoxors [25]
<h2>Hello!</h2>

The answers is:

The first mechanic's rate is $70 per hour.

The second mechanic's rate is $110 per hour.

<h2>Why?</h2>

Let's write the given information in order to make the equations that will help us to solve this problem.

Let be "x" the first mechanic's rate and "y" the second mechanic's rate, so:

If the first mechanic worked for 5 hours and the second mechanic worked for 15 hours, and the together charged a total of $2000.

5x+15y=2000

Also, we know that the sum of the two rates was $170 per hour, so:

x+y=180

Then, isolating "x" and replacing it into the first equation, we have:

x=180-y

5(180-y)+15y=2000

900-5y+15y=2000

10y=2000-900

10y=1100

y=\frac{1100}{10}=110

So, the second mechanic's rate is $110 per hour.

Now, to calculate the first mechanic's rate we need to replace "y" into the second equation:

x+y=180\\x+110=180\\x=180-110=70

So, the first mechanic's rate is $70 per hour.

Have a nice day!

7 0
2 years ago
Find the value of
Likurg_2 [28]
F(-9)
f(x)=-5x-2
     =-5(-9)-2
     =45(-2)
     =90
g(-2)
g(x)=3xsquared-21x
      =3(-2squared)-21(-2)
      =3(4)+42
      =12+42
      =54
8 0
3 years ago
A circle with a radius of inches has a central angle of 0.25 radians that intercepts an arc of inches.
Murrr4er [49]
Arc length  = c* r    where  c = angle in radians and r = radius

                = 0.25 * 4

                = 1 inch
4 0
3 years ago
Read 2 more answers
Simplify the expression (4 + 5i)(4 - 5i).<br>16 - 20i<br>16 + 20i<br>-9<br>41​
AnnZ [28]

Answer:

The answer i got was 41. i just took a test with the same problem and it was correct. Hope this helps.

Step-by-step explanation:

3 0
3 years ago
Which product is negative?<br>​
Step2247 [10]

Answer:

it is (3/8)( -5/7)(-1/4)

if ot it should be the one that is all postitive

3 0
2 years ago
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