All categories

3 years ago

Solve the following quadratic equation by factoring or Quadratic Formula.

Mathematics

2 answers:

s344n2d4d5 [400]3 years ago

6 0

Answer:

Step-by-step explanation:

x2 - 3x - 10. = 0

x2 + 2x - 5x - 10 = 0

(x2 + 2x) (-5x - 10) = 0

x (x + 2) - 5 (x + 2) = 0

(x - 5) (x + 2) = 0

x - 5 = 0 x + 2 = 0

x = 5 or x = - 2.

stepladder [879]3 years ago

6 0

Answer is A I’m pretty sure

You might be interested in

Consider the line 5x-8y=8 what is the slope of a line perpendicular to this line what is the slope of a line parallel to this li

Sophie [7]

$\text{Let}\ k:y=m_1x+b_1\ \text{and}\ l:y=m_2x+b_2,\ \text{then}\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\\\l\ \parallel\ k\iff m_1=m_2\\\\\text{Convert the equation to the slope-intercept form}\ y=mx+b.\\\\5x-8y=8\qquad\text{subtract}\ 5x\ \text{from both sides}\\\\-8y=-5x+8\qquad\text{divide both sides by (-8)}\\\\y=\dfrac{5}{8}x-1\to m_1=\dfrac{5}{8}\\\\perpendicular:\ m_2=-\dfrac{1}{\frac{5}{8}}=-\dfrac{8}{5}\\\\parallel:\ m_2=\dfrac{5}{8}$

8 0

3 years ago

Help? linear equations. when you do it drop your Cashapp !

Diano4ka-milaya [45]

Answer:

5. 8/6x + 2

6. -4x - 2

7. y=3

Step-by-step explanation:

4 0

3 years ago

Simplify the answer pls

disa [49]

Answer:

Step-by-step explanation:

24/3 - 4

8 - 4 = 4

4 0

3 years ago

Can you please answer this for me

Vsevolod [243]

Answer:

you are on the right track

Step-by-step explanation:

the second ones right so you are right :)

3 0

3 years ago

How much interest is earned in 2 years on an investment of $2000? The interest rate is 3%

erik [133]

Answer:
A = $ 2,120.00

Equation:
A = P(1 + rt)
Calculation:
First, converting R percent to r a decimal
r = R/100 = 3%/100 = 0.03 per year,
then, solving our equation

A = 2000(1 + (0.03 × 2)) = 2120
A = $ 2,120.00

The total amount accrued, principal plus interest,
from simple interest on a principal of $ 2,000.00
at a rate of 3% per year
for 2 years is $ 2,120.00.

6 0

3 years ago