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yulyashka [42]
3 years ago
14

A line that includes the point (2,7) has a slope of

Mathematics
1 answer:
liraira [26]3 years ago
5 0

Answer:

y - 7 = -8(x-2)

Step-by-step explanation:

The point slope form is: y-y1=m(x-x1)

From the information that was given, we know our two points: (2,7)

From here, we can fill in some of the missing information: y-y1=m(x-x1) → y - 7 = m(x-2)

Now I can't tell if you wrote down -8 or just 8, but just in case my answer isn't the right number.

The answer would either be: y - 7 = -8(x-2)    [if you wrote down -8 as the slope]

OR

The answer would be: y - 7 = 8(x-2)    [if you wrote down 8 as the slope]

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Based on sample results, a 90% confidence interval for the mean servings of fruit per day consumed by grade school children is (
Artemon [7]

Answer: 1.12

Step-by-step explanation:

The confidence interval for the mean \mu and margin of error E is given by :-

(\mu-E,\ \mu+E)                                             --------------(1)

The given confidence interval : (0.21, 2.45)              -------------(2)

From (1) and (2), we  have

\mu-E=0.21-------(3)\\\\\mu+E=2.45--------(4)

Subtract equation (3) from (4), we get

2E=2.45-0.21\\\\\Rightarrow\ 2E=2.24\\\\\Rightarrow\ E=\dfrac{2.24}{2}=1.12

Hence, the margin of error is 1.12 .

5 0
3 years ago
The sum of 4 interior angles of a pentagon is 402° find the measure of the fifth interior angle
jolli1 [7]
<span>Since the sum of all the interior angles in a pentagon is equal to 540 degrees, the measure of the fifth interior angle is 138 degrees. 

Calculations:

540 - 402 = 138</span>
7 0
3 years ago
Need help ASAP DUE SOON AND SHOW WORK PLEASE!!!!!
irakobra [83]

Answer:402.1

Step-by-step explanation: After you find volume Find the number in the tenth place  

and look one place to the right for the rounding digit  

2

. Round up if this number is greater than or equal to  

5

and round down if it is less than  

5

.

8 0
3 years ago
A frog moves in a sequence of unit steps. Each step is N, S, E or W with equal probability. It starts at the origin. Find the pr
Molodets [167]

The answer is 067.

It takes an even number of steps for the object to reach (2,2), so the number of steps the object may have taken is either 4 or 6 .

If the object took 4 steps, then it must have gone two steps $\mathrm{N}$ and two steps E, in some permutation. There are $\frac{4 !}{2 ! 2 !}=6$ ways for these four steps of occuring, and the probability is $\frac{6}{4^{4}}$.

If the object took 6 steps, then it must have gone two steps N and two steps E, and an additional pair of moves that would cancel out, either N / S or W/E. The sequences N, N, N, E, E, S can be permuted in $\frac{6 !}{3 ! 2 ! 1 !}=60$ ways. However, if the first four steps of the sequence are N, N, E, E in some permutation, it would have already reached the point (2,2) in four moves. There are $\frac{4 !}{2 ! 2 !}$ ways to order those four steps and $2 !$ ways to determine the order of the remaining two steps, for a total of 12 sequences that we have to exclude. This gives $60-12=48$ sequences of steps. There are the same number of sequences for the steps N, N, E, E, E, W, so the probability here is $\frac{2 \times 48}{4^{6}}$.

The total probability is $\frac{6}{4^{4}}+\frac{96}{4^{6}}=\frac{3}{64}$, and $m+n=067$.

What is probability?

  • Probability is synonymous with possibility. It is a mathematical discipline that deals with the occurrence of a random event. The value ranges from zero to one.
  • Probability has been introduced in mathematics to predict the likelihood of occurrences occurring. Probability is defined as the degree to which something is likely to occur.
  • This is the fundamental probability theory, which is also utilized in probability distribution, in which you will learn about the possible results of a random experiment.
  • To determine the likelihood of a particular event occurring, we must first determine the total number of alternative possibilities.

To learn more about probability visit:

brainly.com/question/11234923

#SPJ4

4 0
2 years ago
Help with this question picture below
mezya [45]

Answer:

I think it is B,D, and E. Hope that helps.

8 0
3 years ago
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