MATHEMATICS HIGH SCHOOL

(-1,2) and (-4,8)Find the slope of the line that contains the point
1. 2
2. 6/5
3. -2
4. -6/5

Answers

Answer 1
Answer:

Answer:

-2

Step-by-step explanation:

We can use the slope formula

m = ( y2-y1)/(x2-x1)

   = ( 8 -2)/(-4- -1)

   = (8-2)/(-4+1)

   = 6/-3

   = -2
Answer 2
Answer: The answer is -2 you simplify 6/-3 and get -2

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Which second degree polynomial function has a leading coefficient of –1 and root 4 with multiplicity 2?f(x) = –x2 – 8x – 16

f(x) = –x2 + 8x – 16

f(x) = –x2 – 8x + 16

f(x) = –x2 + 8x + 16

Answers

Hello,

f(x)=-(x-4)²=-(x²-8x+16)=-x²+8x-16

Answer B

Answer:

The answer is B. Just took the test.

Step-by-step explanation:

P(A)=0.4 and P(B)=0.6. What is the probability of observing event B three times in a row? Question 10 options:

0.240


0.360


0.064


0.216

Answers

Answer:

0.216

Step-by-step explanation:

Probability is the ratio of the number of possible outcome to the number of total outcome.

The probability that an event will happen added to the probability that the event will not happen gives 1. In other words, the outcome of a probability cannot exceed 1.

The probability that an event a will happen or that another independent event  b will happen is the sum of the probability that a will happen to the probability that b will happen.

The probability that the event B will occur 3 times in a row may be interpreted as BBB and in probability, "and" is interpreted as multiplication while "or" is addition.

Pr(BBB)

= 0.6 * 0.6 * 0.6

= 0.216

Help me find area please asap​

Answers

you have to find the area of both the square and rectangle. use the formula A=wl
square = 3x3 = 9
rectangle = 10x3 = 30
area= 39 (i think)

A family has 8 girls and 4 boys. A total of 2 children must be chosen to speak on the behalf of the family at a local benefit. What is the probability that 1 girl and 1 boy will be chosen?A. 2/11
B. 1/6
C. 2/33
D. 16/33

Answers

Probability is all about multiplying fractions.

The first fraction is the probability of picking a girl.. so how many of the 12 total children are girls. (8/12)

The second fraction is the probability of picking a boy.. so how many of the 11 remaining children are boys. (4/11) 

8/12 X 4/11 = 8/33 -> this isn't even an option but I'm like 10000% this is the right answer.. 

I started off this answer feeling so confident lol. good luck.
D. 16/33

because there are 28 g/g pairs, 6 b/b pairs, and 32 g/b pairs. In total 66 pairs, and of those pairs 32/66 are 1 girl and 1 boy, reduced is 16/33.

Which statement is true??

Answers

I think the first one is correct, sorry if I’m wrong.

Need help in this question please show work along with answer

Answers

                              (x² - y²)² + (2xy)² = (x² + y²)²
                     (x² - y²)(x² - y²) + 2x²y² = (x² + y²)(x² + y²)
            x²(x² - y²) - y²(x² - y²) + 2x²y² = x²(x² + y²) + y²(x² + y²)
x²(x²) - x²(y²) - y²(x²) + y²(y²) + 2x²y² = x²(x²) + x²(y²) + y²(x²) + y²(y²)
                x⁴ - x²y² - x²y² + y⁴ + 2x²y² = x⁴ + x²y² + x²y² + y⁴
                       x⁴ - 2x²y² + y⁴ + 2x²y² = x⁴ + 2x²y² + y⁴
                       x⁴ - 2x²y² + 2x²y² + y⁴ = x⁴ + 2x²y² + y⁴
                                              x⁴ + y⁴ = x⁴ + 2x²y² + y⁴
                                            - x⁴         - x⁴
                                                     y⁴ = 2x²y² + y⁴
                                                   - y⁴              - y⁴
                                                      0 = 2x²y²
                                                      2       2
                                                      0 = x²y²
                                                      0 = xy

I didn't find the answer to the problem.
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