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Kisachek [45]
3 years ago
6

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

Mathematics
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

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Can someone help me im in the test rn
Snezhnost [94]
Aré you still taking it?
7 0
3 years ago
How to solve for the shaded region
k0ka [10]
The shaded region is a triangle. Triangle area can be determined with formula
a = 1/2 × b × h

From the question, we know that the triangle consists of
base = 10 - 6 = 4 m
and the height is the dimension which is perpendicular to the base,
height = 6 m

Find the triangle area
a = 1/2 × b × h
a = 1/2 × 4 × 6
a = 1/2 × 24
a = 12

The area of the shaded region is 12 m²
5 0
3 years ago
What is the slope of a line that is perpendicular to the line y= -1/2x +5?
spin [16.1K]
The answer is:

B. -1/2

Explanation:
The equation is in y= mx + b form, which means that m= slope and b= y-intercept. You can see that the slope is -1/2.


7 0
3 years ago
(BRAINLIEST TO THE BEST ANSWER + PLEASE ANSWER PROPERLY, OR YOUR ANSWER WILL BE REPORTED. DON'T FORGET TO THOROUGHLY EXPLAIN.) J
KatRina [158]
Hey there!

In order to answer this question, it's easiest to start with one of the money amounts and work your way to the other ones. Keep in mind that, no matter what, the amount of collective money won't exceed 1.50, meaning you can't have two 1 dollar bills, etc. When I wrote it out, I did it in this order:

1 = 1 dollar
0.5 = Half dollar
0.25 = Quarter

1 + 0.5 = 1.50
1 + 0.25 + 0.25 = 1.50
0.5 + 0.5 + 0.5 = 1.50
0.5 + 0.5 + 0.25 + 0.25 = 1.50
0.5 + (0.25*4) = 1.50
0.25*6 = 1.50

Since no other combinations add up to 1.50, your answer is 6. 

Hope this helped you out! :-)
4 0
3 years ago
PLSS HELPP MMEEE FASSTT
marta [7]

Answer:

12313

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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