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elixir [45]
3 years ago
5

What number should be added to both sides of the equation to complete the square? x^2+ 8x = 4

Mathematics
1 answer:
Sonbull [250]3 years ago
3 0

Answer:

16

Step-by-step explanation:

use the formula (b/2)^2 to find what number to add to each side of the equation

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1/9 + 5/6 Please help me I’m mark Brainly :->
Phoenix [80]

Answer: 17/18

Step-by-step explanation: You have to find the least common denominator first, since 1/9 and 5/6 have different denominators. The least common denominator is 18. Multiply both the numerator and the denominator of each fraction by the number that makes its denominator equal to the least common denominator.

The equation then becomes 2/18 + 15/18 which equals 17/18 ^-^

3 0
3 years ago
Read 2 more answers
In the coordinate plane, what is the length of the line segment that connects points at (5,4) and (-3,-1)
baherus [9]

Answer:

9.434 units

Step-by-step explanation:

Given data

points (5,4) and (-3,-1)

x1= 5

y1= 4

x2= -3

y2= -1

The expression for the distance between two points is

d=√((x_2-x_1)²+(y_2-y_1)²)

substitute

d=√((-3-5)²+(-1-4)²)

d=√((-8)²+(-5)²)

d=√64+25

d=√89

d=9.4339

d= 9.434 units

Hence the distance between the points is 9.434 units

8 0
3 years ago
Alonzo takes 12 minutes to run 6 times around a 400-meter track. Assuming he runs at a constant speed, how long does he take to
snow_lady [41]

Answer:

5 minutes to run 1 kilometer

Step-by-step explanation:

Alonzo takes 12 minutes to run 6 times around a 400-meter track.

6 times around a 400 m track

400 * 6 = 2400 meters

It take 12 minutes to run 2400 meters

2400 meters = 2400/1000 = 2.4km

distance = 2.4 km  and time = 12 minutes

Now we find our constant speed

Distance = speed * time

2.4 = speed * 12

divide by 12 on both sides

speed = 0.2

so speed is 0.2 km per minute

Now we find out time when distance = 1km

Distance = speed * time

1 = 0.2 * t

divide by 0.2 on both sides

5 = t

So it take 5 minutes to run 1 kilometer

3 0
3 years ago
You are the treasurer for a local charity. At the beginning of the month the balance was $820.64. The charity received donations
djverab [1.8K]
Beginning Balance:                  820.64
Add:
donations: 500 + 55 + 25          580.00
Deduct:
electric bill:  40.64
postage bill: 12.75
rental       : 445.00            <u>     (498.39)</u>
Ending Balance                     902.25

The balance at the end of the month is $902.25
6 0
3 years ago
What type of transformation is shown?
Blizzard [7]
Translation is shown.
3 0
3 years ago
Read 2 more answers
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