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Alborosie
3 years ago
6

Complete the steps in solving the quadratic function 7x – 9 = 7x2 – 49x by completing the square. Fill in the blanks.

Mathematics
2 answers:
katovenus [111]3 years ago
8 0

Top one is 56

-9 +  <u>112 </u>= 7(x2 - 8x + <u>16 </u>)

PolarNik [594]3 years ago
8 0

Answer:

1 is -56 2 is 112 3 is 16

Step-by-step explanation:

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Istanbuldaki marmaray hattında tren maksimum 100km/sa'tir Trenin saniyedeki hızı kaç m/sn'dir​
Tanzania [10]

Answer:

27,77

1 saatte 3600 saniye var

100 km de 100.000 metre yapar o halde

100.000/3600 = 27,77 m/sn yapar

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7 0
3 years ago
How many gallons of pure water should be added to 10 gallons of a solution containing 15% juice so that the remaining solution c
Vinvika [58]
1.5 gallons of juice
a. 10 gallons
b. none
c. 10 gallons (all water)

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4 0
3 years ago
Read 2 more answers
Select the best answer for the question. 8. Evaluate m + n2 if we know m = 2 and n = –2. A. –6 B. 6 C. 8 D. –8
natta225 [31]
M + n² = (2) + (-2)² = 2 + 4 = 6

Answer: 6
3 0
3 years ago
Find the midsegment of triangle ABC so that it is parallel to side BC and label it as segment EG on the graph.
Lelechka [254]

Answer:

Coordinate of E:(-2,3) Coordinate of G: (2.5,1.5)

Parallel: slopes both = -1/3

1/2 segment: EG length= 3 BC length=6: This is the only one I'm not sure about.

I will show the work for both the problems down below.

Step-by-step explanation:

Finding coordinates:

1+(-5)/2=-2  5+1/2=3

(-2,3)

1+4/2= 2.5   5+(-2)/2= 1.5

(2.5,1.5)

Show work verifying the EG and BC are parallel:

You can do this by finding the slope

Slop formula (y2-y1)/(x2-x1)

(1.5-3)/(2.5-(-2))

Then simplify

-1.5/2/5= -1/3 which i your slope. You use the same formula and follow thee same steps for the points of BC and both will come up as -1/4 meaning they are parallel.

Show work verifying that EG and BC are parallel:

Use distance formula to find how long each line is

√(x2-x1)^2+(y2-y1)^2

√(2.5-(-2)^2)+(1.5-3)^2

Simplify

√4.5+(1.5)=3

Do the same thing with BC and you will get 6






7 0
3 years ago
Plz help!!!!!!!!!!!!!!
hram777 [196]

Answer:

the answer is D.

3 0
2 years ago
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