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Doss [256]
3 years ago
9

E is the midpoint of DF, DE = 6x+1 and EF =7x-4 find DE, EF and DF

Mathematics
1 answer:
pogonyaev3 years ago
8 0
Tbh i dont know i just need points to ask a question sorry :/
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{5x=7y<br> {x+7y=21<br><br> pls help i dnt understand this...
Alinara [238K]

Answer:

x = 7/2 y = 5/2

Step-by-step explanation:

You can either use the elimiation or adding and subtracting method to get the variables for both x & y.

Once you solved for one variable, plug in the variable you just solved back into the original equation to find the other variable.

4 0
3 years ago
I will give crown to the best answe PLEASE HELP ME!!!!!
Goshia [24]
Comment
You can't get to quadrant 4 to quad 2 without 2 steps. The answers tell you that. The question is, did you use a reflection and a y or x translations or 2 reflections or 2 y or 2x translations.

Argument
You can take one point and see if it translate from beginning (purple triangle) to (yellow triangle) end. If two conditions will get you the right answer, then you have to try another point to break the tie.

We'll use Point C.
Choice A: If you reflect C over the y axis, you will go from (-5,1) to (5,1)
                 If you move C six units down, you will go from (5,1) to  (5,-5) which is where C' is.
                 That is pretty much the answer.

I could confirm it with another point which is the way your should do it.

Try Point A

Choice A:  Point A reflects across the y axis going from (-3,4) to (3,4)
                 Point A  translates down by moving from (3,4) to (3,-2) to become A'

Answer reflection and translation  in condition A

More Comment
I should do one more for you to show you that it is wrong.
You can try Choice B of the multiple Choice answers.

We will use Point C 
If we translate C across the x axis it will go from (-5,1) to (-5,-1)
The we are to translate 1 unit up. We will go from (-5,0) from (-5,-1) That's nowheres near where C' is. Choice B is wrong.

6 0
3 years ago
Read 2 more answers
You deposit $75 in a savings account that earns 5% annual interest compounded yearly. Find the balance in the account after the
Nana76 [90]
Hi there
The formula is
A=p (1+r)^t
A future value
P present value 75
R interest rate 0.05
T time

After 1 year the balance is
A=75×(1+0.05)
A=78.75

After 2 years
A=75×(1+0.05)^(2)
A=82.69

After 5 years
A=75×(1+0.05)^(5)
A=95.72

After 20 years
A=75×(1+0.05)^(20)
A=198.99 round
A=199

Hope it helps
7 0
3 years ago
NECESITO AYUDA EN ESTOS EJERCIICIOS DE MATES NIVEL SEGUNDO ESO
Kay [80]

Answer: 49/60

Step-by-step explanation:

(1/3+2/5)-1/4-(5/6-7/6)

Primero  (5/6-7/6)

5/6-7/6=-2/6

1/3+2/5-1/4-(-2/6)

1/3+2/5-1/4+2/6

2/6=1/3

1/3+2/5-1/4+1/3

2/3+2/5-1/4

2/3=10/15

2/5=6/15

10/15+6/15-1/4

16/15-1/4

16/15=64/60

1/4=15/60

64/60-15/60=49/60

4 0
3 years ago
Simplify the following expression:<br><br> (66)4
iren [92.7K]

Step-by-step explanation:

Given

( {6}^{6})^{4}  \\  =  {6}^{6 \times 4}  \\  =  {6}^{24}  \\  = 4.7383813e18

3 0
3 years ago
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