2 years ago

Solve the equation by factoring. 2x^2+7x=15

Mathematics

1 answer:

Andreas93 [3]2 years ago

4 0

It should be (x+f)(2x-3)=0

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Please help me out and answer!!!!! <br> Really struggling

e-lub [12.9K]

Answer:

Step-by-step explanation:

Under a counterclockwise rotation about the origin of 90°

a point (x, y) → (- y, x)

A translation of 3 units up → + 3 in the y- direction, that is add 3 to the y- coordinate, hence

(x, y) → (- y, x) → (- y, x+ 3) → D

3 0

2 years ago

The diagonal length of a rectangle is 25 inches, and the length of the rectangle is 9 inches.

diamong [38]

Answer:

Option C is the right answer.

Step-by-step explanation:

Given that:

Length of diagonal = 25 inches

Length of rectangle = 9 inches

Width of rectangle will be one of the two legs of right angled triangle and the diagonal will be the hypotenuse.

Using Pythagorean theorem;

$a^2+b^2=c^2\\(9)^2+w^2=(25)^2\\81 + w^2 = 625 \\w^2 = 625-81\\w^2 = 544$

Taking square root;

$\sqrt{w^2}=\sqrt{544}\\w=23.3$

Therefore,

Option C is the right answer.

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2 years ago

I need help can someone help me pls

sattari [20]

Answer:

D: 25 miles

Step-by-step explanation:

Pythagorean Theorem:

$a^{2} + b^2 = c^2$

36^2 + b^2 = 39^2

1,296 + b^2 = 1,521

b^2 = 225

b = 25

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2 years ago

PLEASE ANSWER LAST OF MY POINTS, DUE IN 10 MINUTES

makkiz [27]

No HAHAHAHAHAahhahahsiaijxjs

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3 years ago

PLEASE HELP ME I WILL DO ANYTHING

Ivenika [448]

Answer:

we can tell if line ac is straight

Step-by-step explanation:

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2 years ago