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lidiya [134]
3 years ago
14

Which number is a solution to x2+8x+12=0?

Mathematics
1 answer:
erica [24]3 years ago
4 0

Answer:

x=2,6

Step-by-step explanation:

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Please help me with this thank you !!
andreev551 [17]
I think the answer is b i've never learned this sorry :(
4 0
3 years ago
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Cora got a $1200 loan for 2 years. She paid $90 in interest. What was her interest rate? (*hint: you will get a decimal as an an
bearhunter [10]

Answer:

To use the simple interest formula, I = Prt, we substitute in the values for ... Do you know that banks pay you to let them keep your money? ... The rate of interest is usually expressed as a percent per year, and is ... Yes, $90 is reasonable. ... Find the principal invested if $178 interest was earned in 2 years

Step-by-step explanation:

4 0
3 years ago
O.9c + 1.89r = 17.01 c=18.9 - 2.1r equation answer
ikadub [295]

Answer:

c=18.90-2.1r

Step-by-step explanation:

<u><em>The complete question is</em></u>

A chef bought $17.01 worth of ribs and chicken. Ribs cost 1.89 per pound and chicken costs 0.90 per  pound. The equation 0.90 +1.89r = 17.01 represents the relationship between the quantities in this  situation.

Show that each of the following equations is equivalent to 0.9c + 1.89r = 17.01.

Then, explain when it might be helpful to write the equation in these forms.

a. c=18.9-2.1r. b. r= -10÷2c+9​

we have that

The linear equation in standard form is

0.90c+1.89r=17.01

where

c is the pounds of chicken

r is the pounds of ribs

step 1

Solve the equation for c

That means ----> isolate the variable c

Subtract 1.89r both sides

0.90c=17.01-1.89r

Divide by 0.90 both sides

c=(17.01-1.89r)/0.90

Simplify

c=18.90-2.1r

step 2

Solve the equation for r

That means ----> isolate the variable r

Subtract 0.90c both sides

1.89r=17.01-0.90c

Divide by 1.89 both sides

r=(17.01-0.90c)/1.89

Simplify

r=9-0.48c

therefore

The equation c=18.90-2.1r is equivalent

The equation is helpful, because if I want to know the number of pounds of chicken, I just need to substitute the number of pounds of ribs in the equation to get the result.

4 0
3 years ago
What is the number pie
MakcuM [25]

You meant pi, pi is a irrational number, but they use 3.14 for approximation, so that is your answer.

Hope this helped!

Nate

3 0
3 years ago
Read 2 more answers
Where does a hole occur in the graph of y = x(x+2) / x(x-3)
Morgarella [4.7K]

Answer:

A

Step-by-step explanation:

Given

y = \frac{x(x+2)}{x(x-3)} ← cancel x on numerator/ denominator

 = \frac{x+2}{x-3}

Cancelling the factor x, leaves a hole in the graph at x = 0

7 0
3 years ago
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