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liubo4ka [24]
4 years ago
5

How do I figure out how many combinations there are.

Mathematics
1 answer:
tia_tia [17]4 years ago
4 0

Answer:

multiplying and dividing

Step-by-step explanation:

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Explain what percent of a dollar a quarter, 2 nickels, a dime and 3 pennies are.
arlik [135]
48%
quarter=25%
2 nickels=10%
dime=10%
3 pennies=3%
25+10+10+3=48
3 0
4 years ago
CAN SOMEONE PLZ HELP?!?!?!
melisa1 [442]

Answer:

B

Step-by-step explanation:

The exponential decay formula is

y= ab^x

where a is the initial value and

b = 1- decay rate

b= .9

.9 = 1 - decay rate

Subtract 1 from each side

.9-1 = 1-1-decay rate

-.1 = -decay rate

Multiply by -1

.1 = decay rate

Change to a percent

10 %  = decay rate

7 0
3 years ago
Read 2 more answers
Factor the following<br>X^2+3x+2<br>x^2+15x+50<br>​
Xelga [282]

Answer:

1) (x+1)(x+2)

2) (x+5)(x+10)

Step-by-step explanation:

You can factorize the quadratics equations by applying the proccedure shown below:

1) x^2+3x+2

Find two number whose sum is 3 and whose product is 2.

These would be 1 and 2.

Rewrite it as folowing:

(x+1)(x+2)

 2) x^2+15x+50

Find two number whose sum is 15 and whose product is 50.

These would be 5 and 10.

Therefore, you can rewrite it as folowing:

(x+5)(x+10)

8 0
3 years ago
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You perform 7000 significance tests using a significance level of 3%. Assuming that the null hypothesis is true, how many of the
mr Goodwill [35]

Answer:

210

Step-by-step explanation:

we have given significance level α=3% =0.03

level of significance is nothing but the chances of rejecting a null hypothesis by the test when it given that it is correct. it is denoted by α it also defined as the

level of significance =1 - confidence level

now statistically significant test =0.03×7000=210

so the expected value of statistical significant is 210

4 0
4 years ago
What is the interquartile range?
11Alexandr11 [23.1K]

Answer:

Step-by-step explanation:

Z

7 0
4 years ago
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