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alisha [4.7K]
3 years ago
6

Solve the Quadratic equation 8n²-56=48n

Mathematics
1 answer:
Whitepunk [10]3 years ago
3 0

Answer:

n = {-1, 7}

Step-by-step explanation:

8n² - 56 = 48n

Subtract 48n from both sides

8n² - 48n - 56 = 0

Divide both sides by 8

n² - 6n - 7 = 0

Factor

alternately use the quadratic equation or complete the square

(n - 7)(n + 1) = 0

n = {-1, 7}

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What is the value of x in x2-3x=28
charle [14.2K]

Answer:

x=-28

Step-by-step explanation:

2x-3x=-1x so if -1x=28 divide both sides by -1 so x= -28

5 0
3 years ago
Solve the application problem. find the perimeter of a ruler that measures 6 inches by 5656 inch.
AleksAgata [21]
The perimeter of a ruler that measures 6 in. by 5656 in. is 11,324 in. 

Explanation: 
To find the perimeter<span> of a rectangle or square you have to add the lengths of all the four sides.</span>
5 0
3 years ago
Can someone help me with these please?
saul85 [17]

Point-slope form: y-y1 = m(x-x1)

Standard form: ax + by = c

Slope-intercept form: y = mx+b


Start by finding the slope. We know it is negative since the line is decreasing. The slope is -4/3.


To create point-slope form, we need to get one point from the graph. Let's use (3,0).

y = -\frac{4}{3}(x-3)


To create slope-intercept form, we need the slope and the y-intercept. The y-intercept is the point where our equation crosses the y-axis. For this equation, it is 4.

y = -\frac{4}{3}x + 4


To get standard form, solve the equation in terms of C.


Point-slope form: y = -4/3(x-3)

Slope-intercept form: y = -4/3x + 4

Standard form: 4/3x + y = 4



7 0
4 years ago
Find the balance at the end of 4 years if $10000 is deposited at a rate of 1.5% simple interest
Karo-lina-s [1.5K]

Answer:

$9400

Step-by-step explanation:

1.5x4=6%

100-6=94

0.94x10000=9400

8 0
3 years ago
I don’t know how to do this:(
Wewaii [24]

Answer:

me niether

Step-by-step explanation:

lol

4 0
3 years ago
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