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Radda [10]
3 years ago
10

9n - 15 for n = 5 help me please

Mathematics
1 answer:
MaRussiya [10]3 years ago
7 0

If n = 5, then 9n = 45

45 - 15 = 30, which is the same thing as 6n


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10. Which of the following corresponds to the midpoint of the points A(-2, 5, -3) and B(7,-4, 10)
pochemuha

Answer:

Step-by-step explanation:

mid ~point~of~A(-2,5,-3)~and~B(7,-4,10) ~is~C(\frac{-2+7}{2} ,\frac{5-4}{2} ,\frac{-3+10}{2} )\\=(\frac{5}{2},\frac{1}{2}  ,\frac{7}{2} )

4 0
3 years ago
In a chess variant, a "lord" can move one space at a time, either upward, or to the right, or diagonally up and to the right. ho
valentina_108 [34]

There are 48639 ways for a lord to move from the bottom left to top right corner of the 8 by 8 chessboard

<h3>Further explanation</h3>

The probability of an event is defined as the possibility of an event occurring against sample space.

\large { \boxed {P(A) = \frac{\text{Number of Favorable Outcomes to A}}{\text {Total Number of Outcomes}} } }

<h2>Permutation ( Arrangement )</h2>

Permutation is the number of ways to arrange objects.

\large {\boxed {^nP_r = \frac{n!}{(n - r)!} } }

<h2>Combination ( Selection )</h2>

Combination is the number of ways to select objects.

\large {\boxed {^nC_r = \frac{n!}{r! (n - r)!} } }

Let us tackle the problem.

This problem is similar to Pascal Triangle.

The Lord can move to the right or up in one way only.

We can put "1" in each box on the bottom and left to represent 1 possible movement.

To get the possibility of movement to another box, we will add the possibility of movement to the left, right, and diagonal squares as shown in Figure 1.

This process is repeated for the next box as shown in Figure 2.

Finally, after this process is repeated until the top right box, we get the results as shown in Figure 3.

There are 48639 ways for a lord to move from the bottom left to top right corner of the 8 by 8 chessboard.

<h3>Learn more</h3>
  • Different Birthdays : brainly.com/question/7567074
  • Dependent or Independent Events : brainly.com/question/12029535
  • Mutually exclusive : brainly.com/question/3464581

<h3>Answer details</h3>

Grade: High School

Subject: Mathematics

Chapter: Probability

Keywords: Probability , Sample , Space , Six , Dice , Die , Binomial , Distribution , Mean , Variance , Standard Deviation

7 0
3 years ago
Hurry which one <br> A. 435<br> B. 512<br> C. 870<br> D. 1024
evablogger [386]

Answer:

Step-by-step explanation:

surface area of cuboid=2(l*b+b*h+h*l)

=2(15*15+15*7+7*15)

=2(225+105+105)

=2*435

=870

8 0
3 years ago
Find the slope of the line below . Enter your answer as a fraction or decimal. Use a slash mark ( / ) as the fraction bar if nec
Ymorist [56]

Answer:

5

Step-by-step explanation:

We can find the slope of a line given two points by using the following formula

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

    = (4- -6)/(-2 - -4)

     = ( 4+6)/(-2+4)

     = 10/2

     = 5

4 0
3 years ago
Read 2 more answers
If I've gained 35 pounds in 186 days, how many pounds per day?
Dmitriy789 [7]

Answer:

.188 pounds per day

Step-by-step explanation:

Given

  • 35 pounds gained in 186 days

<u>Divide the amount of pounds gained by the total number of days</u>

35/186 = .188

<u>Answer</u>

Approximately .188 pounds per day.

6 0
3 years ago
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