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3 years ago

If u help u get 50 points

Mathematics

2 answers:

mafiozo [28]3 years ago

6 0

Answer:

Answer: TRUE

Step-by-step explanation:

sveticcg [70]3 years ago

5 0

120 - 36 as a product with the GCF as a factor. True, we can factor out the GCF and we'll have a product:

GCF(120,36) = GCF(5(24),36)=GCF(5(12)(2),12(3)) = 12

We can factor that out and get:

120 - 36 = 12(10 - 3) = 12(7)

Answer: TRUE

How to find the GCF of three numbers.

There are a couple different ways; the obvious way is to find the GCF of the first two and then then GCF of the result and the third.

The other way is to prime factorize all three numbers; for each prime factor count how many times it occurs in each input. In the GCF it will occur the minimum of those three. Multiply the resulting powers of prime factors to get the GCF.

GCF(60,90) = GCF(30(2), 30(3)) = 30

60 + 90 = 30(2 + 3)

Xiao missed a factor of ten in the GCF.

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Consider the following algebraic expression:--5x + 6Step 1 of 2: Identify the first term of the algebraic expression. Indicate w

Sunny_sXe [5.5K]

So,

Here we have the following algebraic expression:

$-5x+6$

The first term of this expression is -5x.

This term is clearly a variable term. The variable is x and its coefficient is -5.

5 0

1 year ago

You are planning a survey of starting salaries for recent computer science majors. In a recent survey by the National Associatio

nydimaria [60]

Answer:

A sample size of 554 is needed.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1 - 0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1 - \alpha$ .

That is z with a pvalue of $1 - 0.025 = 0.975$ , so Z = 1.96.

Now, find the margin of error M as such

$M = z\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

Standard deviation is known to be $12,000

This means that $\sigma = 12000$

What sample size do you need to have a margin of error equal to $1000, with 95% confidence?

This is n for which M = 1000. So

$M = z\frac{\sigma}{\sqrt{n}}$

$1000 = 1.96\frac{12000}{\sqrt{n}}$

$1000\sqrt{n} = 1.96*12$

Dividing both sides by 1000:

$\sqrt{n} = 1.96*12$

$(\sqrt{n})^2 = (1.96*12)^2$

$n = 553.2$

Rounding up:

A sample size of 554 is needed.

5 0

2 years ago

What ratio is bigger 6:12 or 1:2

Gnoma [55]

Answer:

they are both the same amount

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

What is the discount and sale price of a $300 item that has been discounted 10%?

maxonik [38]

Answer: The discount is $30, making the sale price $270.

Step-by-step explanation: Take your initial value times the percent of your discount to find the discount amount: in this case, it is 300 * .10 = 30. Then you can subtract that value from your initial value, 300-30=270 to get the sale price.

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3 years ago

Read 2 more answers

Math help me please you will be mark as the brainiest I do not have much time left

Black_prince [1.1K]

A little tip: you should put the question in next time :)!

7 0

3 years ago