3 years ago

• Solve using the quadratic formula 2x2 + 11x +15= 0

Mathematics

1 answer:

artcher [175]3 years ago

3 0

Answer:

x=-5/2, -3

Step-by-step explanation:

2x^2+11x+15=0

factor out the trinomial

(2x+5)(x+3)=0

zero property,

2x+5=0, x+3=0

2x=0-5=-5, x=-5/2

x=0-3=-3

You might be interested in

A car salesperson sells a car for $21,000. She receives a 5.25% commission on the sale of the car.

valkas [14]

She receives $1,102.50 for commission. All you need to do to solve this problem is multiply the amount given by the percentage as a decimal.

5 0

3 years ago

Read 2 more answers

Which statement best describes the values of a and b in

topjm [15]

Why is the sky orange and red at sunrise and sunset?

Gases absorb orange and red light.

Blue wavelengths are absorbed by the atmosphere.

The thick atmosphere scatters all but longer wavelengths.

Only short wavelengths are radiated from the Sun in the morning and evening.

4 0

3 years ago

A "normal" temperature for a certain animal is 88.3 degree F. lf temperature x that differs from the normal by at least 1.6 degr

MAVERICK [17]

Answer:

unhealthy would be 106 degrees

Step-by-step explanation:

5 0

3 years ago

Find the slope of the line through the given points (21,-7)and (-7,1)

Alex Ar [27]

answer

m= -2

explanation

5 0

3 years ago

CAN ANYONE PLS HELP ME IN THIS PLS I WILL MARK U AS BRAINLIEST :) and pls show work

sergejj [24]

Answer:

(5.9 , 1)

Step-by-step explanation:

(1 , 0) (1 , 2) length = 2

Third vertex ( x , y)

(x - 1)² + (y - 0)² = 5²

(x - 1)² + (y - 2)² = 5² isosceles triangle

(y - 2)² - y² = 0

-4y + 4 = 0

y = 1

(x - 1)² + (1 - 0)² = 5²

(x - 1)² = 24

x - 1 = ± 2√6

x = 1 + 2√6 or x = 1 - 2√6

X in the 1st quadrant x = 1+2√6 = 5.9

3 0

4 years ago

Read 2 more answers