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2 years ago

Help and Explain please

Mathematics

1 answer:

ANEK [815]2 years ago

4 0

You replace x for 2 and add 2 and 3 first b/c there in the parentheses. After that, you will have 5 $^{3}$ so you multiply 5 x 5 x 5 because it is an exponent.and your final answer is C) 125.

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What is the slope of the line shown below?

Anton [14]

Answer:

Slope = 3

Step-by-step explanation:

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Slope = 3

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2 years ago

What is the perimeter of ΔABC?

Serggg [28]

Answer:

Choice D: Perimeter = 5 + $\sqrt{65}$ + $\sqrt{34}$ units

Step-by-step explanation:

point B(9, 2) , point C(4, 5), point A (1,1)

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where D (A, C) = distance between A and C

so...

D(A, C) = root ( (4 - 1)^2 + (5 - 1)^2) = 5 from a 3-4-5 right triangle.

D(A, B) = root( (9- 1)^2 + (2 -1)^2) = root( 64 + 1) = root(65)

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6 0

2 years ago

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Nesterboy [21]

Answer:

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2 years ago

How many 6 digit different locker combinations are possible if no repeat numbers are allowed?

Alex_Xolod [135]

Since we are trying to find the number of sequences can be made without repetition, we are going to use a combination.

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$_n C _k = \dfrac{n!}{k! (n - k)!}$

$n$ is the total number of elements in the set
$k$ is the number of those elements you are desiring

Since there are 10 total digits, $n = 10$ in this scenario. Since we are choosing 6 digits of the 10 for our sequence, $k = 6$ in this scenario. Thus, we are trying to find $_{10} C _6$ . This can be found as shown: