All categories

3 years ago

Factor the expression k^2+5kf-50f^2

Mathematics

1 answer:

Llana [10]3 years ago

8 0

Answer:

(k+10f) (k-5f)

Step-by-step explanation:

k^2+5kf-50f^2

What 2 numbers multiply to -50 and add to +5

10 *-5 = -50

10+-5 = 5

(k+10f) (k-5f)

You might be interested in

-2(p - 1) = 15 anserwwwww plssssss

adelina 88 [10]

Answer:

-6.5

Step-by-step explanation:

-2(p - 1) = 15

-2p + 2 = 15

-2p = 13

p = -6.5

6 0

3 years ago

From end zone to end zone, a football field is 120 yards long. How long is the

timofeeve [1]

Answer:

120x3 = 360

Step-by-step explanation:

4 0

3 years ago

4j + 4j − 6j − j = 12 <br> Solve for J

kherson [118]

J equals 12...........

3 0

3 years ago

Read 2 more answers

Given points A(-1, -2) and B(2, 4) where AP: BP=1:2, find the locus of point P.

koban [17]

Answer:

$x^2 + 4x + y^2 +8y = 0$

Step-by-step explanation:

Given

$A = (-1,-2)$

$B = (2,4)$

$AP:BP = 1 : 2$

Required

The locus of P

$AP:BP = 1 : 2$

Express as fraction

$\frac{AP}{BP} = \frac{1}{2}$

Cross multiply

$2AP = BP$

Calculate AP and BP using the following distance formula:

$d = \sqrt{(x - x_1)^2 + (y - y_1)^2}$

So, we have:

$2 * \sqrt{(x - -1)^2 + (y - -2)^2} = \sqrt{(x - 2)^2 + (y - 4)^2}$

$2 * \sqrt{(x +1)^2 + (y +2)^2} = \sqrt{(x - 2)^2 + (y - 4)^2}$

Take square of both sides

$4 * [(x +1)^2 + (y +2)^2] = (x - 2)^2 + (y - 4)^2$

Evaluate all squares

$4 * [x^2 + 2x + 1 + y^2 +4y + 4] = x^2 - 4x + 4 + y^2 - 8y + 16$

Collect and evaluate like terms

$4 * [x^2 + 2x + y^2 +4y + 5] = x^2 - 4x + y^2 - 8y + 20$

Open brackets

$4x^2 + 8x + 4y^2 +16y + 20 = x^2 - 4x + y^2 - 8y + 20$

Collect like terms

$4x^2 - x^2 + 8x + 4x + 4y^2 -y^2 +16y + 8y + 20 - 20 = 0$

$3x^2 + 12x + 3y^2 +24y = 0$

Divide through by 3

$x^2 + 4x + y^2 +8y = 0$

3 0

3 years ago

Don’t answer if you don’t know !!

DochEvi [55]

Answer:

72 sides

Step-by-step explanation:

The sum of the angles of a polygon with n sides is (n−2) × 180

Since the polygon is regular, we can divide by the number of sides to find the measure of each angle (n−2) × 180 / n

Each angle is equal to 175

(n−2) × 180 / n = 175

Multiply each side by n

(n-2)180 = 175n

Distribute

180n -360 = 175n

Subtract 180n from each side

180n-180n-360 = 175n-180n

-360 = -5n

Divide each side by -5

-360/-5 =-5n/-5

72 = n

There are 72 sides

3 0

3 years ago

Read 2 more answers