3 years ago

How do I solve this

2 answers:

8 0

Hello,

$x^2-2x-27=-5x+1\\

x^2-2x+5x-27-1=0\\

x^2+3x-28=0\\

x^2+7x-4x-28=0\\

x(x+7)-4(x+7)=0\\

(x+7)(x-4)=0\\

x=-7\ or\ x=4\\
$

iris [78.8K]3 years ago

3 0

The answer is X1=-7, x2=4.

You might be interested in

Find the slope of the line that passes through (-6,1) and (4,-3)

Aleonysh [2.5K]

$Slope\ formula=\frac{rise}{run}=\frac{y_2-y_1}{x_2-x_1}=\\\\\frac{-3-1}{4-(-6)}=\\\\\frac{-4}{10}=\\\\{\boxed{Slope=-\frac{2}{5}}$

7 0

2 years ago

The point (16, 12) lies on the terminal side of an angle. find cos, tan, and sin

frez [133]

The terminal side means that it's 16 to the right and 12 up. Which means that the triangle made from this has the sides of 16 and 12 and the hypotenuse is 20 units long. Theta, in this case, would have 16 as it's adjacent and 12 as it's opposite.
Therefore, using the Pythagorean identities:
<span> $sin(\theta) = \frac{12}{20} = \boxed{\frac{3}{5}} \\\ cos(\theta) = \frac{16}{20} = \boxed{\frac{4}{5}} \\\ tan(\theta) = \frac{12}{16} = \boxed{\frac{3}{4}}$ </span>

8 0

3 years ago

(9/89)x490+324<br> Please help

Likurg_2 [28]

Answer:

(9/89)×490+324=
9/89×490=
4410/89+324=?

6 0

2 years ago

Read 2 more answers

Pls help ..

Vlad1618 [11]

The triangles are not similar because the smallest sides are 6/10 = 3/5, the medium sides are 8/24 = 1/3, and the longest sides are 10/26 = 5/13 and similar triangles must have the same ratio for all three sides.

6 0

2 years ago

Mr Conover bought 6 boxes of Patel for his art class. He paid $4.50 for each box. What was the total cost of the box

slava [35]

4.50×6=27.00. the total cost of the box will be $27.00

3 0

3 years ago