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geniusboy [140]
3 years ago
8

Solve equation by using the quadratic formula.

Mathematics
1 answer:
adoni [48]3 years ago
3 0
ANSWER IS C because I looked it up
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Solve with interval notation Solve: 5 | x − 2 | + 4 > 8
Gnesinka [82]

Answer:

x<6/5, x>14/5

Step-by-step explanation:

Steps

$5\left|x-2\right|+4>8$

$\mathrm{Subtract\:}4\mathrm{\:from\:both\:sides}$

$5\left|x-2\right|+4-4>8-4$

$\mathrm{Simplify}$

$5\left|x-2\right|>4$

$\mathrm{Divide\:both\:sides\:by\:}5$

$\frac{5\left|x-2\right|}{5}>\frac{4}{5}$

$\mathrm{Simplify}$

$\left|x-2\right|>\frac{4}{5}$

$\mathrm{Apply\:absolute\:rule}:\quad\mathrm{If}\:|u|\:>\:a,\:a>0\:\mathrm{then}\:u\:<\:-a\:\quad\mathrm{or}\quad\:u\:>\:a$

$x-2<-\frac{4}{5}\quad\mathrm{or}\quad\:x-2>\frac{4}{5}$

Show Steps

$x-2<-\frac{4}{5}\quad:\quad x<\frac{6}{5}$

Show Steps

$x-2>\frac{4}{5}\quad:\quad x>\frac{14}{5}$

$\mathrm{Combine\:the\:intervals}$

$x<\frac{6}{5}\quad\mathrm{or}\quad\:x>\frac{14}{5}$

5 0
3 years ago
What charge is the neutron?<br> Katlyn-charged<br> negative<br> no charge (neutral)<br> positive
Fynjy0 [20]

Answer:

neutral

Step-by-step explanation:

neutral subatomic particle that is a constituent of every atomic nucleus except ordinary hydrogen.

4 0
2 years ago
A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer corre
boyakko [2]

Answer:

16 problems.

Step-by-step explanation:

100% divided by 20 questions.

100/20 is equal to 5, therefore each question is worth 5 points.

Grade of 80% divided by points per question.

80/5 is 16 so the student answered 16 questions correctly.

6 0
2 years ago
Read 2 more answers
The graph shows a system consisting of a linear equation and a quadratic equation.
Lorico [155]

Answer:

  (3, 4) and (5, 12)

Step-by-step explanation:

The points where the two curves intersect are the solutions to the system of equations:

  (3, 4) and (5, 12)

3 0
3 years ago
To graph the line y = 3x -2, I should *
ipn [44]

Answer:

The answer is D because you should starts at -2 on the y-axis and moves up 3 and right 1.

4 0
3 years ago
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