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Ivanshal [37]
3 years ago
12

I don't know how doing this​

Mathematics
1 answer:
Mkey [24]3 years ago
4 0

Slope intercept form - <u>y = m(x) + b</u>. m represents slope, b represents the y-intercept. You should be able to plug in any value for y and x into the equation, and it should result in a true statement.

The y-intercept is easy to find. It is the point where X is equal to zero and the graph line crosses through the y axis. In this case, y intersects at -2. Since we insert the y intercept at b, we can go ahead and plug it in there.

y = m(x) + b > <em>y = m(x) - 2  </em>

Since there is only one option with the y intercept equalling -2, you can go ahead and pick D) y = -x - 2 as your answer, since no other options have the correct y-intercept.

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Help me pleaseeeeeeeeeeee...
mel-nik [20]
50.24 bc a=3.14(radius to second power) and the radius would be 4, 4•4=16 and 16•3.14=50.24
3 0
3 years ago
Read 2 more answers
I need someone to answer this immediately please. ... The area of a piece of land is 50cm square. Fi d the value of x, if the le
iren [92.7K]

Answer:

x=8

Step-by-step explanation:

Area is equal to

A = l * w

50 = ( x+2) ( x-3)

FOIL

50 = x^2 -3x+2x -6

Combine like terms

50 = x^2 -x -6

Subtract 50 from each side

0 = x^2 -x -56

Factor

What two numbers multiply to -56 and add to -1

-8*7 = -56

-8+7 = -1

0 = ( x-8) ( x+7)

Using the zero product property

x-8 =0   x+7 =0

x = 8   x=-7

Since the length cannot be negative x cannot be negative

x=8

8 0
4 years ago
Read 2 more answers
1. In triangle ABC, D is the midpoint of BC. If Ac = 3x-15 and DE =6, what is the value of x?
Misha Larkins [42]

Answer:

<u>Option C. 9</u>

Step-by-step explanation:

The question is as following:

In triangle ABC, D is the midpoint of line AB and E is the midpoint of line BC. If AC= 3x-15 and DE= 6, what is the value of x?

==================================================

See the attached figure which represents the problem.

As shown:

D is the midpoint of line AB ⇒ AD = DB

E is the midpoint of line BC  ⇒ BE = EC

Apply The Mid-segment theorem which states that the mid-segment connecting the midpoints of two sides of a triangle is parallel to the third side of the triangle, and the length of this mid-segment is half the length of the third side.

So, DE = 0.5 AC

Given: Ac = 3x-15 and DE =6

∴ 6 = 0.5 (3x - 15)

solve for x

Multiply both sides by 2

12 = 3x - 15

3x = 12 + 15 = 27

x = 27/3 = 9

So, the value of x is 9

<u>The answer is option C. 9</u>

6 0
3 years ago
Jose paid $36.40 for 4 movie tickets. Each ticket costs the same amount. What was the cost of the movie tickets in dollars and c
Keith_Richards [23]

Answer:

$9.10

Step-by-step explanation:

Jose paid $36.40 <em>in total </em> for 4 movie tickets.

Divide $36.40 with 4

36.40/4 = 9.1

$9.10 is the cost of one movie ticket.

~

7 0
3 years ago
5.7 x 3.6 help me asap​
Mama L [17]

Answer:

20.52

Step-by-step explanation:

I used a calculator

6 0
3 years ago
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