3 years ago

How do I solve this word problem?

Mathematics

1 answer:

oksian1 [2.3K]3 years ago

3 0

I think it would would be 42g.

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QUESTION 11

notsponge [240]

Answer:

Step-by-step explanation:

3( 2 + 2 ) - 4

3( 4 ) - 4

12-4

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3 years ago

What is the radius of a circle whose equation is x2 + y2 + 8x – 6y + 21 = 0?

s344n2d4d5 [400]

Answer:

2 units

Step-by-step explanation:

The given equation of the circle is:

$x^{2} + y^{2}+8x-6y+21=0$

The general equation of the circle is:

$x^{2} + y^{2}+2gx+2fy+c=0$

Comparing the given equation with the general equation we can say:

g = 4

f = -3

c = 21

The formula for radius of the circle is:

$radius=\sqrt{g^{2} +f^{2} -c }$

Using these values of the given circle, we get:

$radius=\sqrt{(4)^{2}+(-3)^{2}-21}\\\\radius=\sqrt{4}\\\\radius=2$

Therefore, the length of radius of the given circle is 2.

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3 years ago

(5x^2+3x+4)-(2x^2+5x-1)

DedPeter [7]

Answer:
The answer is (3x^2-2x+5)

6 0

4 years ago

An airplane is descending to a runaway. At an altitude of 15.2 miles, its horizontal distance to the runway is 60 miles. Find th

Snezhnost [94]

Answer-

The angle of descent is 14.2

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3 years ago

“Write an equation in slope-intercept form for the line with slope 3/2 and y-intercept -7.”

gregori [183]

Answer:

y = 3/2x - 7

Step-by-step explanation:

slope-intercept: y = mx + b

m = slope (3/2)

b = y-intercept (-7)

when put together, the equation is y = 3/2x - 7.

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