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Vadim26 [7]
3 years ago
11

7th-grade math I WILL GIVE BRAINLIEST !

Mathematics
1 answer:
andriy [413]3 years ago
6 0

Answer:

It includes it because with out it there will be no center and it wouldn't be right. And with out it ever equation wont be proportional

Step-by-step explanation:

I really hope this helps Im just saying what I think is the answer it is my fault if you get the answer wrong <3

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1. (x+y)2 when x= −3, y= 14
Vikentia [17]

Answer:

1.

(x+y)2\\ (-3+14)2\\ -6+28\\ 22\\ \\

2.

-2x+17\\ -2(8)+17\\ -16+17\\ 1

3.

10-3m\\ 10-3(5)\\ 10-15\\ -5

6 0
3 years ago
What is the height of a right circular cylinder that has a volume of 48 cubic centimeters and a radius of 2 centimeters
grandymaker [24]

Answer:

the answer will be 3.82 . Hope this helped

Step-by-step explanation:

3 0
2 years ago
How do i write the difference of a number x and 2 is 7 as an equation
HACTEHA [7]

You can quiet literally write the question as it is.

The difference of a number x and 2 is 7.

The difference of a number x and 2 can be written as x-2

is can be written as equal or =

This statement can be translated as x-2=7.

It is as simple as that!

5 0
3 years ago
What is the domain and range of <br> f(x)=2x^2+6x+2
lbvjy [14]

As is the case for any polynomial, the domain of this one is (-infinity,  +infinity).

To find the range, we need to determine the minimum value that f(x) can have.  The coefficients here are a=2, b=6 and c = 2,

The x-coordinate of the vertex is  x = -b/(2a), which here is x = -6/4 = -3/2.

Evaluate the function at x = 3/2 to find the y-coordinate of the vertex, which is also the smallest value the function can take on.  That happens to be y = -5/2, so the range is [-5/2, infinity).

3 0
3 years ago
Olivia flips a two-sided counter and then spins a spinner with six equal-size sections labeled 1 through 6. One side of the coun
Novay_Z [31]

Answer:

12

Step-by-step explanation:

A 2 - sided counter ; (red, yellow)

A spinner (1,2,3,4,5,6)

Number of trials = 80

P(red and number > 3) :

P(red) = 1/2 ;

P(number >3) : numbers greater Than 3 = (4, 5, 6)

Hence, P(number <3) = 3 /6 = 1/2

Theoretical probability = 1/2 *1/2 = 1/4

Expected number of outcomes :

1/4 * number of trials

1/4 * 80 = 20

Experimental outcome :

Relative frequency = number of outcomes / number of trials

Relative frequency = 2/5

Hence,

2/5 = number of outcomes / 80

Cross multiply :

160 = number of outcomes * 5

Number of outcomes = 160 /5 = 32

Actual outcomes = 32

Difference between actual and expected :

32 - 20 = 12

7 0
3 years ago
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