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IceJOKER [234]
3 years ago
13

4n2 - 3 = 61how do I solve by square roots​

Mathematics
2 answers:
AleksAgata [21]3 years ago
6 0

Answer:

n = -4, 4

Step-by-step explanation:

4n² - 3 = 61

4n² = 64

n² = 16

n = +/- 4

NeX [460]3 years ago
3 0

Answer:

n = 4 or n = -4

Step-by-step explanation:

We have: 4n² - 3 = 61.

Add 3 to both sides:

4n² = 61 + 3 = 64

Divide both sides by 4:

n² = 64/4 = 16

Square root both sides:

n = +/- √16

n = 4 or n = -4

The answers are 4 and -4.

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H (t) = -16t^2 + 144
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Answer:

-16 (t+3) (t-3)

Step-by-step explanation:

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3 years ago
If a cone has a radius of 2 cm and a height of 10 cm, what is the volume?
BARSIC [14]

Answer:

41.89

explanation:

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5 0
3 years ago
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Ming is mowing a lawn that is 12 feet wide and 25 feet long.
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Answer:

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Step-by-step explanation:

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3 years ago
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Write the equation of a line passing through (6,-2) and perpendicular to -2x + 3y= -6
____ [38]
Perpendicular lines refers to a pair of straight lines that intercept each other. The slopes of this lines are opposite reciprocal, meaning that it's multiplication is -1.
On this case they give you the equation of a line and a point, and is asked to find the equation of a line that is perpendicular to the given one, and that passes through this point.


-2x+3y=-6                 Add 2x in both sides
3y=2x-6                    Divide by 3 in both sides to isolate y
y=2/3x-6/3


The slope of the given line is 2/3, which means that the slope of a line perpendicular to this one, needs to be -3/2. Now you need to find the value of b or the y-intercept by substituting the given point into the formula y=mx+b, where letter m represents the slope.

y=mx+b                 Substitute the given point and the previous slope found
-2=(-3/2)(6)+b       Combine like terms
-2=-9+b                 Add 9 in both sides to isolate b
7=b

The equation that represents the line perpendicular to -2x+3y=-6 and that passes through the point (6,-2), is y=-3/2x+7.


4 0
3 years ago
PLEASE ANSWER LAST OF MY POINTS, DUE IN 10 MINUTES
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No HAHAHAHAHAahhahahsiaijxjs
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