What are the solutions to the equation? x2 + 6x = 40

Answers

Answer 1

Answer: x² + 6x = 40

Subtract 40 from both sides:

x² + 6x - 40 = 40 - 40

refine: x² + 6x - 40 = 0

factor x² + 6x - 40 = 0

( x- 4 ) ( x + 10 ) = 0

solve x - 4 = 0

x = 0 + 4

x = 4

solve x + 10 = 0

x = 0 - 10

x = - 10

solution : x = 4 , x = - 10

hope this helps!

Answer 2

Answer:

Answer:

$x_1= 4\nx_2=-10$

Step-by-step explanation:

$x^2+6x=40$

Since it is an equation squared to find the two values of x we can apply the formula of the solver

$x = \frac {-b \pm \sqrt {b^2 - 4ac}}{2a}$

we equate the equation to zero to be able to apply the solver

$x^2+6x=40\nx^2+6x-40=0$

$a=1 \nb=6\nc=-40$

$x = \frac {-6 \pm \sqrt {(6)^2 - 4(1)(-40)}}{2(1)}\nx = \frac {-6 \pm \sqrt {36+160}}{2}\nx = \frac {-6 \pm \sqrt {196}}{2}\nx = \frac {-6 \pm \ 14}{2}\nx_1= \frac {-6 +\ 14}{2}\nx_1= (8)/(2)= 4\nx_2=\frac {-6 - 14}{2}\nx_2=(-20)/(2)= -10$

$x_1= 4\nx_2=-10$

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The area formed by a plane cutting through a solid perpendicular to its axis is aA.cross section
B.Longitudinal section
C.Cylindrical Section
D.Middle section

Answers

Answer:

cross section

Step-by-step explanation:

The area formed by a plane cutting through a solid perpendicular to its axis is a cross section.

A cross section area is the area obtained from a three dimensional object like sphere when it is sliced at any axis perpendicular at a point. For example cross section of a cylinder sliced parallel to its base is circle.

Josiah and his friends are going to the movies. Each ticket costs $10, and popcorn is $5 a bag. There is a $3 service fee for the entire purchase. He has $75. If he buys 4 tickets, what is the maximum number of bags of popcorn he can buy

Answers

Make sure you check this because i do make mistakes.

10 x 4 = 40

75 - 40 = 35

So josiah has 35 dollars to spend for things other than tickets.

35 - 3 = 32 (for the service fee)

So josiah has 32 dollars to spend on popcorn

32/5 = 6.4 but you cant have half a bag of popcorn so

6 bags

joanne buys a rectangular rug with an area of 35/4 square meters. The length of the rug is 7/2 meters. What is thw width, in meters, of the rug?

Answers

The width pf the rug is 15 meters

a student measures the mass of an 8cm3 block of brown sugar to be 32g.what is the density of the brown sugar ?

Answers

D= Densitym= massV= VolumeD=m÷V= 8÷32D= 1/4

D = m/v
D = 32g/8cm^3
D = 4g/cm^3

I am write the other answer is wrong. She got her numbers mixed. Mass is calculated using grams and volume is calculated using cm cubed.

I’m in need of help