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Inga [223]
3 years ago
12

Help and read the instructions please

Mathematics
2 answers:
sveta [45]3 years ago
7 0

Step-by-step explanation:

we know y = mx + b

where m is the slope and b is the y intercept.

So, we just plug in the values given and we'll get our equation which is: y = -1.6x + 4 or

y = (-8/5)x + 4 if you want to get rid of the decimal.

Mamont248 [21]3 years ago
6 0
Y= -1.6x+4

the format for these equations are

y= mx+b
m=slope
b= y intercept
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2(a-7)=a+4<br> 15 6<br>PLS HELPPPPPPPPPPP​
muminat

Answer:

a = 18

Step-by-step explanation:

2(a-7)=a+4

Distribute 2 into left side: 2a -14 = a + 4

subtract a from both sides  2a-a-14 = a+4-a

Simplify: a  - 14 = 4

Add 14 to both sides: a - 14 + 14 = 4 +14

Simplify:   a = 18

If wanted, plug a into original to double check work:

plug in: 2 (18-7) = 18+4

do parenthesis first: 2 (11) = 18+4

do multiplication : 22 = 18+4

additions: 22 =22

a = 18 is correct.

8 0
3 years ago
Read 2 more answers
The graph of y = x^2 has been translated 7 units to the left. The equation of the resulting parabola is _____.
tiny-mole [99]
Y = (x +7)^2. The parabola is going into the negative region. The x value must be positive.
7 0
4 years ago
Read 2 more answers
Bob is trying to determine how much fence he needs to surround his house. He determined the length has a distance of 56 ft and t
kobusy [5.1K]
Perimeter=2(56+37)=2×93=186 ft, answer A.
6 0
4 years ago
How many solutions does this system of equations have?<br><br> y = –2x + 2<br> 2y + 4x = 4
Rama09 [41]

Step-by-step explanation:

First we solve it.

I'll use substitution.

In the first equation y equals -2x+2 so we can apply that to the second equation

2y + 4x = 4

2(-2x+2) + 4x = 4

distribute

-4x+4+4x=4

simplify

4=4

To figure out how many solutions it has:

•If both side of the equal sign are exactly the same: Infinitely many

ex: 6x=6x

•If both sides of the equal sign do not match when completely simplified: No solutions

ex: 3x=-5x

•If it creates an equation: 1 solution

ex: x=3+2y

Since both sides of the equal sign are 4, we have infinitely many solutions.

Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!

7 0
3 years ago
IN triangle ABC point D is the centroid and BD=4 Find BE
valentinak56 [21]

Answer:

2

Step-by-step explanation:

What is so special about the centroid? It is the distinct point that each of the three medians intersect. Therefore, from this definition we can figure out through some geometric proof (I'm not going to go into this) the following:

If you draw the medians, you will notice that they intersect at exactly one point. That is the centroid. You will also notice that the centroid splits the median into 2 parts: top and bottom. The proof suggests that the top part is 2 times the bottom part.

In this case, the centroid is D and the top point is B. Therefore, we can figure out that BD, the top part, must be 2 times the bottom part, which is BE. Thus, we determine that BE is 2 because 4/2 = 2.

I would encourage you to draw it out so you can understand. Unfortunately, typing may not work all the time

4 0
3 years ago
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