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Leona [35]
3 years ago
8

3 to the 3rd power plus 20 divided by 2 to the second power

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
4 0

Answer

11.75 or 32

Step-by-step explanation:

3^3+20= 47/2^2= 11.75

3^3+(20/2^2)= 32

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Please answer a and c
n200080 [17]

add the numbers on both side by 3

4 + 3 = 7

8 + 3 = 11

rewrite the expression

7<11

that is still true

do the same by multiplying it by 2 and rewrite the inequality


5 0
4 years ago
Is the likelihood of the occurrence of an event and are numbers
julia-pushkina [17]

Answer:

Probability

Step-by-step explanation:

Probability is the likelihood of the occurrence of an event and are numbers.

6 0
3 years ago
A police office claims that the proportion of people wearing seat belts is less than 65%. To test this claim, a random sample of
babunello [35]

Answer: 0.345

Step-by-step explanation:

Given: The the setup for this hypothesis test:

H_0:p=0.65\\\\H_a:p

Since , the alternative hypothesis is left tail , so the test is left tail test.

P_0=0.65\\\\Q_0=1-0.65=0.35\\\\p=\dfrac{126}{200}=0.63

The test static for population proportion is given by :-

z=\dfrac{p-P_0}{\sqrt{\dfrac{P_0Q_0}{n}}}\\\\\Rightarrow\ z=\dfrac{0.63-0.65}{\sqrt{\dfrac{0.65-0.35}{126}}}=−0.409878030638\approx-0.4

The p-value of z = P(z

3 0
4 years ago
Y= x + 6<br>y= -x+2<br><br>solve each system of equations by substitution
ser-zykov [4K]

Answer:

x= -2
y=4

Step-by-step explanation:


Since we have an equation set equal to y, we can plug it in for either value of y.

I will be using y= x+6 in this case.

Plug in x+6 for the other equation, so instead of y=-x+2 it will now be that x+6 = -x+2

Now add x to both sides, and that will remove the x on the left side leaving us with 2x+6 = 2

Now, subtract 6 from both sides to get 2x isolated, and you will get 2x= -4

Divide both sides by 2 to get x= -2

Not plug x= -2 in back for the top (or bottom) equation and get that y=4

Hope this helps and isn't too complicated!

7 0
3 years ago
1 pts
WINSTONCH [101]

Answer:

-1

11

53

Step-by-step explanation:

I plugged the x values on the table into x and solved

4 0
3 years ago
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