Ask question

Ask question

All categories

3 years ago

6

Find the discriminant and the number of real roots for this equation 2 + 2x+7= 0

1 answer:

miv72 [106K]3 years ago

4 0

Step-by-step explanation:

2+2x+7=0

collecting like terms

2x+9=0

2x=-9

divide both sides by 2

x=-4.5

You might be interested in

What's x divided by 26=28

tigry1 [53]

X/26=28
•26=•26 (cancels each other out)
X=728

3 0

3 years ago

Read 2 more answers

If mZP = 85°, which is a possible measure for ZY?

Fudgin [204]

Do you have an image attached so I can help you?

7 0

3 years ago

Read 2 more answers

Please Answer ASAP <br> Math Question

MArishka [77]

If you were to factor you would do what my teacher likes to call reverse foil so it would look like this (x-9)(x+4) so what you do is you brainsrorm to see what multiplies what to get that and 9*4=36 so that is how you factor -36 to find the -9 Hope this helps if I'm correct if not I will try to find the answer

4 0

3 years ago

If you have two dots and one line in the middle

Art [367]

That is a line segment

3 0

3 years ago

Read 2 more answers

Sam works 1/5 hour at the register of a store. He works 2/3 hour in the back stock room and 1/2 hour helping customers. How many

AleksandrR [38]

Answer:

Sam worked $\frac{41}{30}$ hours that day (fractional answer)

Step-by-step explanation:

The total number of hours Sam worked is the sum of all the three hours given.

Let's add the first 2 using LCM and then add that result with the last.

Firstly:

$\frac{1}{5}+\frac{2}{3}\\=\frac{1(3)+2(5)}{15}\\=\frac{13}{15}$

Now,

$\frac{13}{15}+\frac{1}{2}\\=\frac{13(2)+1(15)}{30}\\=\frac{41}{30}$

The hours worked by Sam is 41/30 hours (fractional answer).

7 0

3 years ago