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Hunter-Best [27]
3 years ago
10

Determine the discriminant for the quadratic equation –3 = x2 + 4x + 1. Based on the discriminant value, how many real number so

lutions does the equation have?
Mathematics
2 answers:
inysia [295]3 years ago
6 0
Discriminant = b^2 - 4ac  =  4^2 - 4*1*4  = 0 
There are 2 real solutions
They are x = -2 (duplicity 2).
Alexus [3.1K]3 years ago
6 0
X^2 + 4x + 4 = 0
d = b^2 - 4ac, where a = 1, b = 4 and c = 4
d = 4^2 - 4 x 1 x 4
d = 16 - 16 = 0
Since d = 0, there is one real solution to the equation 
hope it helps
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For a fundraiser, Marcus needs to raise $600 in order to meet his goal. Marcus will walk a certain number of miles, and he will
aliya0001 [1]

-32

Step-by-step explanation:

Step 1:

The  rate of change over an interval is got by finding the change in g(x),  the change in x and dividing it.

Step 2:

Given, x denotes the number of miles walked by Marcus for the fund raiser

g(x) denotes the amount of money he has left to raise after x miles of walking

g(x) for the interval [6,10] is 408,280

Change in x  = 10-6 = 4

Change in g(x) = 280-408 = - 128

Rate of change = -128/4 = -32

Hence the average change in rate over the given interval is -32

8 0
3 years ago
5(- 3x - 2) - (x - 3) = -4(4x + 5) + 13
Vedmedyk [2.9K]

Answer:

0

Step-by-step explanation:

Let's solve your equation step-by-step.

5(−3x−2)−(x−3)=−4(4x+5)+13

Step 1: Simplify both sides of the equation.

5(−3x−2)−(x−3)=−4(4x+5)+13

5(−3x−2)+−1(x−3)=−4(4x+5)+13(Distribute the Negative Sign)

5(−3x−2)+−1x+(−1)(−3)=−4(4x+5)+13

5(−3x−2)+−x+3=−4(4x+5)+13

(5)(−3x)+(5)(−2)+−x+3=(−4)(4x)+(−4)(5)+13(Distribute)

−15x+−10+−x+3=−16x+−20+13

(−15x+−x)+(−10+3)=(−16x)+(−20+13)(Combine Like Terms)

−16x+−7=−16x+−7

−16x−7=−16x−7

Step 2: Add 16x to both sides.

−16x−7+16x=−16x−7+16x

−7=−7

Step 3: Add 7 to both sides.

−7+7=−7+7

0=0

6 0
3 years ago
Cheryl can travel 21.6 miles on one gallon of gas.
PSYCHO15rus [73]
The answer is 133.92 miles hope it helps
6 0
3 years ago
Pleasee help me i’ll give you brainliest
Shalnov [3]

Answer:

X and y are supplementary.

Step-by-step explanation:

4 0
3 years ago
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During a jump, a sky diver reaches terminal velocity. Which forces are in effect during a sky dive, and are they balanced or unb
neonofarm [45]

Answer:

1.) Unbalanced

Step-by-step explanation:

have a great day

5 0
4 years ago
Read 2 more answers
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