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Korolek [52]
3 years ago
13

Unit Test Review

Mathematics
1 answer:
Mrrafil [7]3 years ago
6 0
825 miles to drive 15 hours
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Which of the following is true about the 1920s? Only two correct answers
lesya [120]

Answer: A. Women began to work outside the home

Step-by-step explanation:

7 0
3 years ago
Two spinners are spun. One has 5 sections labeled Red, Orange, Purple, Yellow, and Green. The other has three sections labeled 1
quester [9]

Answer:

S = 15 possible outcomes

Step-by-step explanation:

For any experiment, the sample space of this experiment is the set of all the possible results of the experiment.

In this case we have two spinners. The first has 5 colors, by spinning the spinner you can get up to 5 different results. Therefore the sample space is S_1 = 5

For the second spinner there are 3 possible results. By spinning the spinner you can get the numbers 1, 2 or 3. Then S_2 = 3.

Then, if the two spinners are rotated, the sample space would be:

S = 5*3

S = 15 possible outcomes.

The tree diagram shown in the attached image shows the 15 possible results

{R, 1} {R, 2} {R, 3} {O, 1} {O, 2} {O, 3} {Y, 1} {Y, 2} {Y, 3} {P, 1} {P, 2} {P, 3} {G, 1}

{G, 2} {G, 3}

4 0
3 years ago
PLEASE HELP 30 POINTS!!!!!!!!!!!!!!!!!!!!!!!
Anettt [7]

Since you know the value of "x", you can plug in the value for "x" in the equation.

[When an exponent is negative, you move it to the other side of the fraction to make the exponent positive.]

For example:

x^{-2}  or  \frac{x^{-2}}{1} =\frac{1}{x^2}

\frac{1}{y^{-3}} =\frac{y^3}{1}  or  y³


x = -2

f(x) = 9x + 7

f(-2) = 9(-2) + 7 = -18 + 7 = -11


g(x)=5^x

g(-2)=5^{-2}=\frac{1}{5^2}=\frac{1}{25}   (idk if you should have it as a decimal or a fraction)



x = -1

f(x) = 9x + 7

f(-1) = 9(-1) + 7 = -9 + 7 = -2


g(x)=5^x

g(-1)=5^{-1}=\frac{1}{5}



x = 0

f(x) = 9x + 7

f(0) = 9(0) + 7 = 7


g(x)=5^x

g(0)=5^0=1



x = 1

f(x) = 9x + 7

f(1) = 9(1) + 7 = 9 + 7 = 16


g(x)=5^x

g(1)=5^1=5



x = 2

f(x) = 9x + 7

f(2) = 9(2) + 7 = 18 + 7 = 25


g(x)=5^x

g(2)=5^2=25



You need to determine the solution of f(x) = g(x)

Since you know f(x) = 9x + 7 and g(x)=5^x, you can plug in (9x + 7) for f(x), and (5^x) into g(x)


f(x) = g(x)

9x+7=5^x   You can plug in each value of x into the equation


Your answer is x = 2 because when you plug in 2 for x in the equation, you get 25 = 25

5 0
3 years ago
Out of 18 cookies 2/3 are chocolate chip how many of the are chocolate chip
Maksim231197 [3]
12 of the cookies are chocolate chip. 18 divided by 3 is 6. 2 multiplied by 6 is 12.
4 0
3 years ago
Read 2 more answers
Spencer has a Doctorate degree and earns an annual salary of $96,000. He works 40 hours per week for 48 weeks per year. His brot
Stells [14]

Answer:

23 or 23.00

Step-by-step explanation:

Im very very intelligent

6 0
2 years ago
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