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2 years ago

A teacher asked the class to solve the equation 3(x + 2) = 21.

2 answers:

6 0

3)distributive property
Robert had given 3 to each term. which then results in 3x+6=21. Then. if he further went on, you would subtract 6 from each side giving you 15 then divide 15 by 3 giving you x=5.

vivado [14]2 years ago

3 0

It is the distubitive property because he got rid of the ( )

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A mountain climber starts in a cave, then climbs up the mountain. After 1 hour, he is 6 m under ground. After 4 hours, he is 6 m

Nookie1986 [14]

Answer:

In Point Slope Form: y+6=4(x-1)

Step-by-step explanation:

First you have to find the points given which are:

(1, -6) and (4, 6)

Label the points x1, y1, x2, and y2

It already gives you the slope which is 4.

Plot the points in the equation of Point Slope Form:

y1-y2=m(x-x1)

y1-6=4(x-1)

Simplify: y1-6=4x-4

y=4x+2

It doesn't ask you to simplify but why not!

3 0

3 years ago

The answer to this question here in the photo cause I don’t know this

Lady bird [3.3K]

Answer:

19.

Step-by-step explanation:

PEMDAS.
3^2=9
5 x 2 + 9
10 + 9 = 19

5 0

1 year ago

Under the translation T(2, -3) the point (1, 6) will become (3, 9).

seraphim [82]

Answer:

False (under assumption T(2,-3) means move it right 2 units and down 3 units).

Step-by-step explanation:

The statement is false.

T(2,-3) means move the point right 2 (so plus 2 on the x-coordinate) and down 3 units (so minus 3 on the y-coordinate).

So (1,6) will become (1+2,6-3)=(3,3) after the translation.

The point (1,12) will become (1+2,12-3)=(3,9).

If the statement were "Under the translation T(2,-3) the point (1,12) will become (3,9)", then it would be true.

Or!

If the statement were "Under the translation T(2,3) the point (1,6) will become (3,9)", then it would be true.

3 0

2 years ago

The circumference of a circle is 6.28. What is the area of the circle.

Rom4ik [11]

Hello there! Thank you for asking your question here at Brainly. I will be assisting you today with how to handle this problem, and will teach you how to handle it on your own in the future.

First, let's evaluate the question.
"The circumference of a circle is 6.28. What is the area of a circle?"

Now, let's remember the different formulas for area and circumference.
The circumference is "2•3.14•r", while the area is "3.14•r•r".

We have our circumference, 6.28.
However, we are looking for the area. Since we have the circumference, we need to narrow down to the radius (so we can solve for the area).
Let's set this up as an equation;
C = 2 • 3.14 • r
Plug in the value for our circumference.
6.28 = 2 • 3.14 • r
Multiply 2 by 3.14 and r to simplify the right side of the equation.
2 • 3.14 • r = 6.28 • r = 6.28r

We're now left with:
6.28 = 6.28r
Divide both sides by 6.28 to solve for r.
6.28 / 6.28 = 1
6.28r / 6.28 = r

We are now left with the radius:
R = 1.

Now, we can solve for the area.
Remember our formula for the area.
A = r • r • 3.14.
Plug in 1 for r.
A = 1 • 1 • 3.14
A = 3.14.

Your area is 3.14 units^2.

I hope this helps, and has prepared you for your future problems in relation to this topic!

6 0

2 years ago

Read 2 more answers

a bakery sold 31 bagels in the first hour of business and 42 bagels in the second hour. if the baker had 246 bagels to start, ho

bogdanovich [222]

Answer:

173 bagels were left after the second hour!!

Step-by-step explanation:

7 0

2 years ago