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2 years ago

Im horrible at math help please

Mathematics

1 answer:

lana [24]2 years ago

3 0

Answer:

ANSWER 16FT

Step-by-step explanation:

answer: 16ft

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A survey conducted at an ice cream store asked only mothers

Alecsey [184]

Answer:

B. Biased Sample.

Step-by-step explanation:

The population is not only made of mothers, but there are fathers, sons, daughters, brothers and sisters, and a lot of other people. By selecting only mothers, it gears the survey to be biased towards a certain type of thinking.

3 0

3 years ago

Calculate the distance between the points K= (-8, 0) and Q= (-3, -3) in the coordinate plane round your answer to the nearest hu

Drupady [299]

Answer:

5.83

Step-by-step explanation:

Make a third point such that line KQ is the hypotenuse of a right triangle. See attachment.

3 0

2 years ago

Help me please !!!!!

andrew-mc [135]

Answer:

Step-by-step explanation:

The way to do this is just to add the two real parts together and add the two imaginary parts together.

2 + 5j + 7 - 3j

2 + 7 + 5j - 3j

9 + 2j

3 0

3 years ago

How many different three-digit numbers can be written using digits from the set 5, 6, 7, 8, 9 without any repeating digits?

suter [353]

Answer: 60 different numbers can be formed

Step-by-step explanation:

Note that we have 5 different digits, and we must select 3 of them. They should not be repeated

The order of selection is important in this case, because the number 532 is not the same as the number 235.

So we have a permutations problem, where we have a set of n elements and we want to choose r from them.

Then we define the permutacion as:

$nPr=\frac{n!}{(n-r)!}$

In this case note that n=5 because there are 5 elements in the set.

r = 3 because we combine the elements to form three-digit numbers

Then:

$5P2=\frac{5!}{(5-3)!}$

$5P2=\frac{5!}{2!}$

$5P2=\frac{5*4*3*2!}{2!}$

$5P2=5*4*3$

$5P2=60$

4 0

3 years ago

What is the Vertex y=2x^2+6

inessss [21]

Compare this function to y=ax^2 + bx + c. You can readily see that a=2, b=0 and c=6.

The x-coord. of the vertex is at x = -b / (2a). Subbing the given values for a and b, we get

x = -(0) / (2(2) = 0. At x = 0, y = 6, so the vertex of this parabola is (0,6). It opens upward.

4 0

3 years ago