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3 years ago

Need help with this problem

Mathematics

1 answer:

RUDIKE [14]3 years ago

6 0

I’m pretty sure it is linear sorry if it’s wrong have a good day

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Probability and Statistics

saw5 [17]

A random variable can be either discrete or continuous. It is discrete it can assume only a finite number of values, or a countable infinity of values at most.

It is continuous if it can assume values in an interval, or in general, an uncountable infinity of values.

That being said, we have:

Option A is a discrete random variable, because the number of heads in 5 throws can be 0, 1, 2, 3, 4 or 5. So, we have finitely many possible values.

Option B is a discrete random variable, because the number you roll on a die is either1, 2, 3, 4, 5 or 6. So, we have finitely many possible values.

Option C is a discrete random variable, because if there are n students in a class, the number of boys is an integer between 0 and n. So, we have finitely many possible values.

Option D is finally a continuous random variable, because the height of a 10-year-old can be any number (in a suitable range of course).

4 0

4 years ago

(-9, -10) through the origin

Anit [1.1K]

So (x, y) and origin is is (0, 0) then you place three points on the graph, they should be as follows [(-9, -10), (0, 0), (9, 10)]. Count the spaces you moved from point a to point b, should be right 9 and up 10. meaning...
Slope = 9/10
I'm pretty sure this is correct, I hope this helped.

6 0

4 years ago

A rectangular exercise mat has a perimeter of 36 feet. The length of the mat is twice the width. Write and solve an equation to

denpristay [2]

Answer:

Part a) The length of the mat is $12\ ft$

Part b) The area of the mat is $72\ ft^{2}$

Step-by-step explanation:

step 1

Find the length

Let

L-----> the length of the rectangle

W---> the width of the rectangle

we know that

The perimeter of rectangle is

$P=2(L+W)$

$P=36\ ft$

$36=2(L+W)$

$18=(L+W)$ ----> equation A

$L=2W$ -----> equation B

substitute equation B in equation A

$18=(2W+W)$

solve for W

$18=3W$

$W=18/3=6\ ft$

Find the value of L

$L=2(6)=12\ ft$

step 2

Find the area

The area of rectangle is equal to

$A=LW$

substitute the values

$A=(12)(6)=72\ ft^{2}$

3 0

3 years ago

What is the product of Three-fourths and Negative StartFraction 6 over 7 EndFraction? -9/14

Brums [2.3K]

Answer:

The product is : $-\frac{9}{14}$

Step-by-step explanation:

First term given to us is = $\frac{3}{4}$

Second term given to us = $-\frac{6}{7}$

We have to find product for term 1 and term 2

Which means that we have to find : $(\frac{3}{4})\cdot(-\frac{6}{7})$

Calculating the product of fraction is pretty simple. To calculate the product of any two fractions. We have to multiple the numerator of 1st term with numerator of 2nd which serves as the the numerator of the product. Similarly we have to multiply denominator with denominator.

$(\frac{3}{4})\cdot(-\frac{6}{7}) = \frac{3\cdot(-6)}{4\cdot7} = -\frac{18}{28}$