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3 years ago

What is the gcf of 21 30 anwhat is the gcf of 21 , 30 ,and 44?

1 answer:

5 0

Find the prime factorization of each value.

21 is 7*3

30 is 3*10 which can be further broken down into 3*2*5

44 is 4*11 which can be further broken down into 2*2*11

What do they share in common?
21 and 30 each have a 3 in common.
Therefore the GCF(21, 30) = 3.

21 and 44 share a 2 in common.
But if we're looking at all three of them together, they share nothing in common.

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What is the value of 34+3.5(−44÷2)?

Keith_Richards [23]

Answer:

-43

Step-by-step explanation:

6 0

2 years ago

Find the discount rate when the original price is $103.00 and the amount of the discount is $30.90

Sati [7]

Its 30% because if you take 103 put it in the calculator and divide by 100 you get 1.03 and multiply that time 30 you get 30.9 thats how you find percent

6 0

3 years ago

FAST I NEED THE ANSWER

kumpel [21]

Answer: Refer to the picture I've attached.

Step-by-step explanation:

As far as I know a pyramid net has a square in the centre and 4 triangles, each joining an edge of the square.

Hope this makes sense and helps. :)

7 0

3 years ago

A company advertises that its cans of caviar each contain 100 g of their product. A consumer advocacy group doubts this claim, a

Blizzard [7]

Answer:

The value of the test statistic is -3.14.

Step-by-step explanation:

Test statistic:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the expected value, $\sigma$ is the standard deviation and n is the size of the sample.

A company advertises that its cans of caviar each contain 100 g of their product.

This means that $\mu = 100$

They calculate a sample mean weight of 99 g and a sample standard deviation of 0.9 g. Sample of 8 cans.

This means that $X = 99, \sigma = 0.9, n = 8$

So the test statistic will be given by:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$t = \frac{99 - 100}{\frac{0.9}{\sqrt{8}}}$

$t = -3.14$

The value of the test statistic is -3.14.

8 0

2 years ago

(8,9,2 )(3,5,7)(1,3,3)(5,3,2) which does not make up a triangle

OLga [1]

Most likely you are expected to recognize that side lengths 2, 3, 5 will result in a "triangle" of zero area (looks like a line segment).

The appropriate choice is
(5, 3, 2)

_____
Some authors write the triangle inequality as a + b ≥ c for any assignment of a, b, c to side lengths. The "or equal to ..." allows the triangle to have zero area (looks like a line segment). Other authors insist the inequality not include the "or equal to" case. It looks like your text's author is in the latter camp.

4 0

3 years ago