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3 years ago

Consider the expression below.

Mathematics

1 answer:

qwelly [4]3 years ago

5 0

Answer:

x = - 9, x = - 4

Step-by-step explanation:

Set (x +)(x + 9) equal to zero, that is

(x + 4)(x + 9) = 0

Equate each factor to zero and solve for x

x + 4 = 0 ⇒ x = - 4

x + 9 = 0 ⇒ x = - 9

Thus

x = - 9, x = - 4

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If x varies directly as y, and X = 24 when y= 21, Find x when Y=6

Ne4ueva [31]

Answer:

x = 48/7

Step-by-step explanation:

There's two good ways to do this problem.

Option 1:

Translate "x varies directly as y" into the equation y=kx

Then you have to find k. After you "reset" your y=kx equation, fill in k and then solve for x. See image.

Option 2:

Translate "varies directly" into a proportion, which is two fractions equal to each other:

x/y = x/y

Fill in the three numbers given and cross multiply and solve to find the fourth number. See image.

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1 year ago

Albert’s father is 24 years older than Albert. In 8 years, his father will be twice as old as Albert. How old is Albert now? How

kondor19780726 [428]

Answer:

Albert is 24. Albert's father is 48

Step-by-step explanation:

3 0

3 years ago

Find me equation of the circle with Center at ( 3, - 2) and radius of 3

blondinia [14]

The equation of a circle with center $(x_0,y_0)$ and radius $r$ is

$(x-x_0)^2+(y-y_0)^2=r^2$

In your case,

$x_0=3,\quad y_0=-2,\quad r=3$

Plug these values into the generic formula and you'll get your equation.

5 0

3 years ago

Sue needs 1 and 1/4 flour for a batch of cookies How many batches can she make with 9 cup of flour

irina1246 [14]

7.2 batches may be made with 9 cup of flowers

5 0

3 years ago

Which angles are vertical to DEA? Question is located in the attached file (image)

ValentinkaMS [17]

Answer:

∠CEB

Step-by-step explanation:

The vertical angle is one that is directly opposite to the original angle. In this image of two intersecting lines, it looks like the angle ∠CEB is directly across from our angle ∠DEA. So, the angle ∠CEB is vertical to ∠DEA.

Hopefully that was helpful! :)

3 0

2 years ago