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Blababa [14]
3 years ago
12

Is 5(2x-3y) equivalent to 10x - 3y? Please help me

Mathematics
2 answers:
Greeley [361]3 years ago
8 0
The answer would be false.
lora16 [44]3 years ago
5 0
No its not because 5(2x-3y) is 10x-15 

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If the mean is 298 and standard deviation is 22 what is the probability that a random sample of 42 pregnancies has a mean gestat
anyanavicka [17]

Answer:

The probability is 0.9909.

Step-by-step explanation:

Test statistic (z) = (sample mean - population mean) ÷ (sd/√n)

sample mean = 290 days

population mean = 298 days

sd = 22 days

n = 42

z = (290 - 298) ÷ (22/√42) = -8 ÷ 3.395 = -2.36

The cumulative area of the test statistic is the probability that the mean gestation period is less than 290 days. The cumulative area is 0.9909. Therefore the probability is 0.9909.

7 0
3 years ago
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4. If Sean has about 130 pieces of candy, what
Lerok [7]

Answer:

EXPLAIN

Step-by-step explanation:EXPLAIN

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6 0
2 years ago
What is the rule of a function of the form f(t)= a sin (bt+c) +d whose graph appears to be identical to the given graph?
olasank [31]

Answer:

Option A.

f(x) = -4*sin((1/3)*t + (π/6))  + 3

Step-by-step explanation:

We can easily solve this problem by using a graphing calculator or plotting tool.

The function is

f(t) = a*sin (b*t +c) + d

Please, see attached picture below.

By looking at the picture with all the possible cases, we can tell that the correct option is A.

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7 0
2 years ago
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*
Dennis_Churaev [7]

Answer

15 to 2

Step-by-step explanation:

7 0
2 years ago
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Patty has 8 flowerpots, and she wants to plant a different type of flower in each pot. There are 11 types of flower available at
Dominik [7]
The combination formula is given by

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So, there are 165 ways of choosing 8 flowers out of 11 flowers
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3 years ago
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