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Ulleksa [173]
3 years ago
8

Solve the equation for all values of x by completing the square. x2 + 21 = 10x

Mathematics
1 answer:
sashaice [31]3 years ago
3 0

Answer:

oookkk

Step-by-step explanation:

oofookkjjjnnn

ooo6

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What is the slope of the line (2,3) (1,-2)?
jarptica [38.1K]

Answer: The slope is 5

Step-by-step explanation:

You can calculate the slope of the line with this fomula:

m=\frac{y_2-y_1}{x_2-x_1}

Given the points (2,3) and (1,-2), you can identify that:

y_2=-2\\y_1=3\\x_2=1\\x_1=2

Now, the final step is to substitute these values into the formula  m=\frac{y_2-y_1}{x_2-x_1}, getting that the slope of this line is:

 m=\frac{-2-3}{1-2}

m=\frac{-5}{-1}\\\\m=5

8 0
4 years ago
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10. Elaine is buying cube shaped blocks to add to her mantle as decoration. 1 point
podryga [215]

Answer:

my brain says (c) or (b) so, my answer would be (C)

Step-by-step explanation:

6 0
4 years ago
Explain which division facts were the easiest for you to learn
MrMuchimi
2 divided by 1 or 1 divided by 1
5 0
4 years ago
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A car insurance company has determined that 9% of all drivers were involved in a car accident last year. among 14 drivers living
andriy [413]

The probability of getting 3 or more who were involved in a car accident last year is 0.126.

Given 9% of the drivers were involved in a car accident last year.

We have to find the probability of getting 3 or more who were involved in a car accident last year if 14 were selected randomly.

We have to use binomial theorem which is as under:

nC_{r}p^{r} (1-p)^{n-r}

where p is the probability an r is the number of trials.

Probability that 3 or more involved in a car accident last year if 14 are randomly selected=1-[P(X=0)+P(X=1)+P(X=2)]

=1-{14C_{0}0.9^{0} (0.1)^{14} +14C_{1} (0.9)^{1} (0.1)^{13} +14C_{2} (0.9)^{2} (0.1)^{12}}

=1-{1*0.2670+14!/13!*0.9*0.29+14!/2!12!*0.0081*0.2358}

=1-{0.2670+0.3654+0.2358}

=1-0.8682

=0.1318

Among the options given the nearest is 0.126.

Hence the probability that 3 or more are involved in the accident is 0.126.

Learn more about probability at brainly.com/question/24756209

#SPJ4

7 0
2 years ago
Help me i need help for this equation
AlladinOne [14]

Answer: 99 square inches

Step-by-step explanation:

i believe you add it all together

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