All categories

2 years ago

Which are the solutions of x2 = −7x – 8?

Mathematics

2 answers:

Zarrin [17]2 years ago

3 0

X could be -1.4835 or -5.5615.

Please mark as brainliest....

Nana76 [90]2 years ago

3 0

Step-by-step explanation:

2x=-7x-8

soln

-7x-2x=-8

-9x=-8

9x=8

X=8÷9

.:X= 1 proved;

You might be interested in

What is the value of y?

Ket [755]

I would guess it would be letter B. Let me know if I’m right.

8 0

3 years ago

Read 2 more answers

Please help me figure this out!!

SpyIntel [72]

Answer:

$400 $\frac{18}{25}$ OR $\frac{10018}{25}$

Step-by-step explanation:

$400 stays the same, 72 cents is 72/100. Simplify and voila

6 0

3 years ago

Read 2 more answers

Rewrite in simplest terms: 9(-9f-2)-9(5f+10)

Deffense [45]

Answer:-126f-108

Step-by-step explanation:

9(-9f - 2)-9(5f +10)

-81f - 18 -9(5f + 10)

- 81f - 18 - 45f -90

- 126f - 18 - 90

-126f -108

which give you the answer -126f - 108

7 0

3 years ago

A grounds crew is marking out a circular logo at the center of a football field. The logo will

patriot [66]

Answer:

circumference of a circle formula is C=2*pi*r

Step-by-step explanation:

then

141.3 = 2*pi * r

solve for r

141.3/ (2*pi) = r

22.48859 feet

diameter is 2*r

2*22.48859= 44.9771 feet

divide by 3 because there are 3 feet in one yard

44.9771/3= 14.99239 yds.

it doesn't say to round off, but I would call this 15 yds.

Diameter is 15 yards ± .008 yds That's just about 1/4 of an inch

8 0

2 years ago

Hiiii need help again :( sorry but uh it’s all in the pic <3

Ira Lisetskai [31]

Answer:

Hello! Mizuki here to help

The correct answer would be B

Step-by-step explanation:

Number of people who didn't get flu and weren't vaccinated:115

7 0

3 years ago

Which are the solutions of x2 = −7x – 8?​

Which are the solutions of x2 = −7x – 8?