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gizmo_the_mogwai [7]
3 years ago
5

ST has endpoints Y(-2, -4) and T (6, 8). Find the coordinates of the midpoint of ST

Mathematics
2 answers:
garik1379 [7]3 years ago
7 0

Answer:

The mid-point of S(-2, -4) and T(6, 8) is (2, 2).

Step-by-step explanation:

Given that ST has the end points S(-2, -4) and T (6, 8)

we have to find the coordinates of the midpoint of ST.

By mid-point formula

\text{The coordinates of mid-point of line segment joining the points }(x_1,y_1) and (x_2, y_2)\text{ is }

\text{Coordinates of mid-point}=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})

Coordinates of S is (-2, -4) and T is (6, 8)

\text{Mid-point of ST}=(\frac{-2+6}{2},\frac{-4+8}{2})  

=(\frac{4}{2}, \frac{4}{2})=(2,2)

Hence, the mid-point of S(-2, -4) and T(6, 8) is (2, 2).

 

storchak [24]3 years ago
5 0

add up the X values and y values and divide by two

X=(-2+6)/2=2

Y=(-4=8)/2=2

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.Using a table of values, determine the solution to the equation below to the nearest fourth of a unit. x+4= -3^x+4
Oxana [17]
Remark
The very first thing you should do with a question like this is get the graph. Then you will know what you are looking for. I have provided you with such a graph. Your table should center around -2 ≤ x ≤ -1

So let's set up a table and see what we get. Start with y = x + 5

x             x + 5
-1           4
-1.25      3.75
-1.5        3.5
-1.75      3.25
-2           3

Do the same thing for - (3)^x + 4 See below to see how this is entered your calculator

x            -(3)^x + 4
-1           3.66
-1.25      3.75
-1.5        3.8
-1.75      3.85
-2           3.89

Conclusion
When x = - 1.25 y = 3.75 for both graphs. <<<< Answer

Footnote
You may not be familiar with how to put this in your calculator. This is the way I would do it. I'm only doing it for y = -(3^x) + 4

Let x = - 1.25
3
^ Note your calculator might have x^y or y^x. You'll have 1 of the three.
1.25
+/- 
=
X
1
+/-
=     At this point you should have -0.25
+
4
= 
That gives you 3.75



5 0
3 years ago
Help me with this sum please
vovangra [49]
Volume=length times width times height
this should be easy

a.
the volume of a box is 2.5 times 1 times 1 or 2.5 cubic meters

b.
number of boxes times volume per box=volume of container
number of boxes=volumecontainer/volumebox
find volumecontianer
volumecontainer=5 times 2 times 3=30 cubic meters

number of boxes=30/2.5
number of boxes=12
12 boxes needed to fill container


c.
box
1m=100cm
1m by 1m by 2.5m convert so (times everybody by 100)
100cm by 100cm by 250cm
multiply
2,500,000 cubic centimeters
4 0
3 years ago
Solve -9-8(1+4h)=-17
Mariulka [41]
-9-8(1+4h) = -17. We need to solve for h.
First, use the distributive property for 8(1+4h):
8(1+4h) = 8*1 + 8*4h = 8 + 32h

So -9-8(1+4h) = -17
-9 - (8+32h) = -17
-9 - 8 - 32h = -17
-17 - 32h = - 17
Add 17 on both sides to have the variables on a side and the numbers on the other:
-17 - 32h + 17 = -17 + 17
-32h = 0
divide both sides by -32 to get the variable h alone and its value on the other side:
(-32h)/-32 = 0/-32
h = 0.

So -9-8(1+4h) = -17 for h = 0.

You can recheck your answer (very important):
-9 - 8(1+4h) = -9 -8(1+4*0) = -9 - 8(1+0) = -9-8*1 = -9-8 = -17
The answer has been approved.

Hope this Helps! :)
5 0
3 years ago
Read 2 more answers
Elise has 3/4 of a dollar. She buys a stamp that cost $0.44. Change both numbers into a decimal,and tell how much money Elise ha
soldier1979 [14.2K]

Answer:

$0.31

Step-by-step explanation:

3/4 = $0.75

$0.75 - $0.44 = $0.31

8 0
3 years ago
The perimeter of the top of a desk is 54 inches. If the length of the desk is 15 inches, what is the width of the desk?
OverLord2011 [107]
54=2L+2W
54=30+2W
-30
24=2W
÷2
12=W
3 0
3 years ago
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