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3 years ago

Hope everyones having a good day :3

Mathematics

1 answer:

Stella [2.4K]3 years ago

6 0

the answer should be 21. (9+10=21)

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The Pythagorean Theorem is an equation that helps you to find the lengths of a right triangle. The legs are given as a and b whi

Molodets [167]

Replace a with the length of the given leg and c with the length of the hypotenuse and solve for b:

7^2 + b^2 = 25^2

Simplify"

49 + b^2 = 625

Subtract 49 from each side:

b^2 = 625 - 49

b^2 = 576

Take the square root of both sides to solve for b:

b = √576

b = 24

8 0

4 years ago

A lottery ticket costs $5. You pick 3 two-digit numbers (anything from 00 to 99) in order. If you match the first number only, y

jeyben [28]

Answer:

00 to 99 are 100 numbers.

If you match the first number only, you win $200. The Probability for this is 1/100.

If you match the first two numbers and not the third, you win $5000. The Probability for this is 1/50.

If you match all three numbers, you win $100,000. The Probability for this is 3/100.

And, If you are a customer, You will think is fair for you.

But if you are the lottery tickets company, you will think is not fair for you.

It depends who you are.

8 0

3 years ago

Read 2 more answers

Which situation involves combinations?

Nikitich [7]

I think the answer is A, Choosing 3 flavors of ice cream out of 15 for an ice cream sundae.

3 0

3 years ago

Read 2 more answers

- Write a recursive formula to represent the sequence below. (3,7, 11, 15, 19,23,27,31,35, ...)

NemiM [27]

The recursive formula to find nth term of sequence is:

$a_n = 4n - 1 \text{ where } n \geq 1$ and n = 1, 2, 3, ....

Solution:

Given a sequence is:

3, 7, 11, 15, 19, 23, 27, 31, 35

Let us find the difference between terms

7 - 3 = 4

11 - 7 = 4

15 - 11 = 4

19 - 15 = 4

23 - 19 = 4

27 - 23 = 4

31 - 27 = 4

35 - 31 = 4

Thus the difference between terms is constant

Thus the given sequence is arithmetic sequence

An arithmetic sequence is a sequence of numbers such that the difference of any two successive members of the sequence is a constant

The nth term of arithmetic sequence is given by:

$a_n =a_1+(n-1)d$

$a_n$ = the nᵗʰ term in the sequence

$a_1$ = the first term in the sequence

d = the common difference between terms

Here in the given sequence

d = 4

$a_1=3$

Substitute in above formula,

$a_n = 3 + (n-1)(4)\\\\a_n = 3 + 4n - 4\\\\a_n = 4n - 1$

Thus the recursive formula to find nth term of sequence is:

$a_n = 4n - 1 \text{ where } n \geq 1$ and n = 1, 2, 3, ......

8 0

3 years ago

A shirt rack contains 5 striped shirts, 8 solid shirts, and 6 polka dot shirts. How many outcomes are there when

Dimas [21]

I think It is is 19

6 0

3 years ago

Read 2 more answers