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nekit [7.7K]
3 years ago
12

1. The midpoint of GH is (-2,3), and its endpoints are G (g,4) and H (-2,h). What are the values of g and h

Mathematics
1 answer:
alina1380 [7]3 years ago
4 0

Answer:(g,h)=(-2,2)

Step-by-step explanation:

Given

Midpoint is (-2,3)

Endpoints are G(g,4) and H(-2,h)

Mid point of any two point is given by

x=\frac{x_1+x_2}{2}

and y=\frac{y_1+y_2}{2}

So,-2=\frac{g+(-2)}{2}

-4=g-2

g=-2

Also

3=\frac{4+h}{2}

6=4+h

h=2

Therefore (g,h)=(-2,2)

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I need help to solve this please -6 - 8x = -2(4x + 3)
OverLord2011 [107]

Answer:

infinite solutions, true for all x

Step-by-step explanation:

-6 - 8x = -2(4x + 3)

Distribute

-6-8x =-8x-6

Add 8x to each side

-6-8x+8x = -8x-6+8x

-6 =-6

Since this is always true, the equation is true for all x

8 0
3 years ago
Read 2 more answers
The sum of 3 number is 80. the third number is 3 times the first. the first number is 5 less the second. what are the numbers
Goshia [24]
1st number = x-5
2nd number = x
3rd number = 3x-15
Total = 80
x-5+x+3x-15=80
5x-20=80
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x=20
The numbers are 20, 15, 45
8 0
4 years ago
Solve with solution...no spam answers pls
Agata [3.3K]
<span>Let's analyze Hannah's work, step-by-step, to see if she made any mistakes. 

</span>In Step 1, Hannah wrote \dfrac{d}{dx} (-3+8x) <span> as the sum of two separate derivatives </span>\dfrac{d}{dx}(-3)+ \dfrac{d}{dx} (8x) <span>using the </span><span>sum rule.
</span>
This step is perfectly fine. 

In Step 2, \dfrac{d}{dx}(8x) was kept as it is, and \dfrac{d}{dx}(-3) was rewritten as 0 using the constant rule.Indeed, according to the constant rule, the derivative of a constant number is equal to zero.

This step is perfectly fine. 

In Step 3, \dfrac{d}{dx} (8x)  was rewritten as \dfrac{d}{dx}(8) \dfrac{d}{dx}(x) supposedly using the constant multiple rule.

The problem is that according to the constant multiple rule, \dfrac{d}{dx}(8x)&#10; should be rewritten as 8 \dfrac{d}{dx}(x) and not as \dfrac{d}{dx}(8)\dfrac{d}{dx}(x).  

<span>Therefore, Hannah made a mistake in this step.</span>
6 0
4 years ago
Read 2 more answers
Helppp I don't understand on how I am suppose to find the valuee
sp2606 [1]
Graph those points given, in a cartesian plane grid,
that is, an x,y axis grid

and try to make a straight line from the leftmost, to
the rightmost, they don't really line up as a straight
line, so... try to draw a line that will cover "most of
the points", there will be a couple or so "outliers",
the line that "covers most of the points" is so-called
"best-fit" line, so, using  that line, try to get what
"y" is, when x = 3
4 0
3 years ago
Is my answer correct. If not, what is the answer ? Thank you
kirill115 [55]

Answer:

P = 3

Q = -4

R = 22

Step-by-step explanation:

Expand both sides and compare coefficients.

5Px^2 -PQx +10x -2Q = 15x^2 + Rx +8

Compare coefficients of x^2

5P = 15  => P = 3

Compare constant terms

-2Q = 8

Q = -4

Compare coefficients of x

-PQ + 10 = R

-(3)(-4) + 10 = R

R = 10 + 12 =22

8 0
3 years ago
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