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aleksklad [387]
3 years ago
14

Find the slope of the line perpendicular to the given points. Use / for a fraction. Explain how

Mathematics
1 answer:
stiv31 [10]3 years ago
6 0

Answer:

i think -1/26

Step-by-step explanation:

(y2 - y1) / (x2 - x1)

(-15+16) /(-7-19)

1/-26

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Solve the equation using the quadratic formula. Enter each solution in simplest form.
sergeinik [125]

For this case we have the following quadratic equation:

x ^ 2-4x + 23 = 0

The solutions will be given by:

x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}

Where:

a = 1\\b = -4\\c = 23

Substituting the values we have:

x = \frac {- (- 4) \pm \sqrt {(- 4) ^ 2-4 (1) (23)}} {2 (1)}\\x = \frac {4 \pm \sqrt {16-92}} {2}\\x = \frac {4 \pm \sqrt {-76}} {2}\\x = \frac {4 \pm \sqrt {76i ^ 2}} {2}\\x = \frac {4 \pmi \sqrt {76}} {2}\\x = \frac {4 \pmi \sqrt {2 ^ 2 * 19}} {2}\\x = \frac {4 \pm2i \sqrt {19}} {2}\\x = 2 \pm i\sqrt {19}

We have two roots:

x_ {1} = 2-i \sqrt {19}\\x_ {2} = 2 + i \sqrt {19}

ANswer:

x_ {1} = 2-i\sqrt {19}\\x_ {2} = 2 + i\sqrt {19}

6 0
4 years ago
Please explain.
DENIUS [597]
If you want to solve this i suggest rather dividing or multiplying.
4 0
3 years ago
Example of how is the quadratic equation used in nursing?
Mumz [18]

Answer:

Nurses use this to calculate dosage needed for patients, calculating drip rates and conversion between systems.

Step-by-step explanation:

3 0
3 years ago
A pan of brownies is 7/10 full. Tyreese buys 2/5 of the brownies.
vodka [1.7K]

Answer:

the answer is 9/10

Step-by-step explanation:

I cant draw sorry(┬┬﹏┬┬)╰(*°▽°*)╯

5 0
3 years ago
Anmol got 60 marks out of 80 marks in mathematics what percent marks did he get​
miskamm [114]

Answer:

75%

Step-by-step explanation:

60/80 = 6/8 = 3/4 = 75%

8 0
3 years ago
Read 2 more answers
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