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1 year ago

Help me with this pleaseee…!

Mathematics

1 answer:

masya89 [10]1 year ago

3 0

Answer:

All real numbers

Step-by-step explanation:

We can start out by knowing that the domain of a graph is, the side, to side from the x axis directions.

We can see that the line continues of the graph shown, meaning it is infinite. Meaning the answer is the domain is all real numbers.

We can double check by seeing that the other options don't work or aren't enough:

$x\geq 2\\and\\x\leq 2\\and\\x\geq -4$

The first wouldn't work becuase, yes that is part of the answer, but not the whole answer. The same goes for the others as well, they are on the line and are correct, but the best, and full answer is "All real numbers"

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Which algebraic expression represents “the class was divided into four equal groups”?

scZoUnD [109]

Answer:

$\frac{w}{4}$

Step-by-step explanation:

The algebraic expression states that

"The class we divided into four equal groups."

We have our expression right at the word of "divided", therefore the answer would be a division problem.

w over 4 fits this because it fits the expression, w - class and 4 - amount of groups.

4 + w - Would be the class added four groups

4w - The class multiplies four more groups

4 - w - Four groups was taken from the class

5 0

2 years ago

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I need help on all of this problems please help

Marrrta [24]

Answer:

If we are working in a coordinate plane where the endpoints has the coordinates (x1,y1) and (x2,y2) then the midpoint coordinates is found by using the following formula:

midpoint=(x1+x22,y1+y22)

Step-by-step explanation:

6 0

3 years ago

. Find their present ages. 6 years ago a man's age was six times the age of his son. 4 years hence, thrice his age will be equal

ddd [48]

The present age of the man is 36 years and his son is 11 years.

Answer:

Solution given:

let the age of man be x.

and his son be y.

By question

x-6=6(y-6)

x=6y-36+6

x=6y-30. ......(1)

and

3(x+4)=8(y+4)

3x+12=8y+32

3x=8y+32-12

3x=8y+20. ...(2)

substituting value of x in equation 2 ,we get

3(6y-30)=8y+20

18y-90=8y+20

18y-8y=90+20

10y=110

y=110/10

y=11 years

again substituting value of y in equation 1 we get

x=6*11-30

x=66-30

x=36 years

5 0

1 year ago

We have a bag that contains 100 balls, 50 of them red and 50 blue. Select 5 balls at random. What is the probability that 3 are

MakcuM [25]

Answer:

Likely, I think I havent been in this for a long time so i may be a little rusty. But anyways, I hope this helped!

Step-by-step explanation:

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2 years ago

a circle with radious of 1cm sits inside a 11cm times 12 cm rectangle what is the area of the shaded region

Nitella [24]

Answer: 128.86cm²

Step-by-step explanation:

The circle is inscribed in the rectangle. To find the shaded portion, subtract he area of the circle from the are of the rectangle.

Area of the rectangle = 11 x 12

= 132cm²

Area of the circle with radius of 1cm = πr²

= 3.142 x 1²

= 3.142cm²

Therefore , area of the shaded region = 132cm² - 3.142cm²

= 128.86cm²

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2 years ago

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