3 years ago

Please hurry

Mathematics

1 answer:

Olenka [21]3 years ago

4 0

Answer:

B.8K-168/K-12

You might be interested in

What are the possible values of x in 8x^2+4x=-1

Vladimir79 [104]

Answer:

$x1=-0.25(+)(0.25i)$

$x2=-0.25(-)(0.25i)$

Step-by-step explanation:

we have

$8x^{2}+4x=-1$

Factor the leading coefficient

$8(x^{2}+0.5x)=-1$

Complete the square. Remember to balance the equation by adding the same constants to each side.

$8(x^{2}+0.5x+1/16)=-1+1/2$

$8(x^{2}+0.5x+1/16)=-1/2$

$(x^{2}+0.5x+1/16)=-1/16$

Rewrite as perfect squares

$(x+0.25)^{2}=-1/16$

remember that

$i=\sqrt{-1}$

$(x+0.25)=(+/-)(0.25i)$

$x=-0.25(+/-)(0.25i)$

$x1=-0.25(+)(0.25i)$

$x2=-0.25(-)(0.25i)$

6 0

3 years ago

Number sense is an important concept for young for young children to know because it provides a foundation for understanding ari

alexandr1967 [171]

The answer would be A.)

7 0

2 years ago

What is the solution to this equation?

sesenic [268]

Answer:

x=8

Step-by-step explanation:

x-16=-8

+16. +16

x=-8+16

x=8

6 0

4 years ago

Read 2 more answers

Julie runs 3 miles each morning. How far does she run in feet?<br> (1 mile = 5,280 feet)

Crank

Answer:

15,840 feet

Step-by-step explanation:

5,280*3 = 15840

Since she runs 3 miles each morning, and 1 mile is 5,280,

then you multiply 5,280*3

6 0

3 years ago

Express 180 as a percentage of 200

gizmo_the_mogwai [7]

Answer:

90%

Divide 180 by 200, and you get .9. Convert that into. a percentage

4 0

3 years ago

Read 2 more answers