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salantis [7]
3 years ago
12

Please help me!!!! :)

Mathematics
1 answer:
DaniilM [7]3 years ago
5 0

\sin(45)  =  \frac{17}{a}  \\  \frac{1}{ \sqrt{2} }  =  \frac{17}{a}  \\ a = 17 \sqrt{2}
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Fined the measure of arc NL
adelina 88 [10]
The measure of an arc is twice the measure of the inscribed angle that intercepts it.

m(arc)NL = 2 * 42 = 84
5 0
3 years ago
Meena's family took a road trip to Niagara Falls. Meena slept through the last 49% of the trip. If the total length of the trip
Daniel [21]

<u>Answer:</u> (update)

<h2>122.5 miles</h2>

<u>Explanation:</u>

given: the total length of the trip = 500 miles

hence the road's length from home to niagara falls = 500/2 = 250

Sleepy Meena missed:

250/100×49 = 2.5×49 = 122.5 miles

:)

7 0
3 years ago
A $\textit{palindrome}$ is a positive integer which reads the same forward and backward, like $12321$ or $4884$. How many $4$-di
Norma-Jean [14]

There are 90 4-digit palindromes

<h3>What are palindromes?</h3>

Palindromes are numbers whose reverse is the same as the original number

<h3>How to determine the count of 4-digit palindromes</h3>

Since the digit is 4, then

  • The first digit of the palindrome can be any of 1 to 9 (i.e. 9 digits)
  • The second digit can be any of 0 - 9 (i.e. 10 digits)
  • The third digit must be the second digit (i.e. 1 digit)
  • The last digit must be the first digit (i.e. 1 digit)

So, the total number of digits is:

n =9 * 10 * 1 * 1

Evaluate the product

n =90

Hence, there are 90 4-digit palindromes.

Read more about numbers at:

brainly.com/question/251701

4 0
3 years ago
Simplify 10(2x + 3) - 20. 20x + 10 20x - 17 20x - 10
Tatiana [17]

10(2x+3) - 20

 multiply 10 by 2x and by 3 to get

20x+30-20

subtract 20 to get

20x+10

8 0
3 years ago
Read 2 more answers
The cost to a store for an MP3 player is $60. The selling price is $105. A classmate says that the markup is 175% because $105$6
blsea [12.9K]

It is given that the cost price of the MP3 player is $60 and the selling price is $105.

The markup is given by the formula:

Markup = \frac{S.P.}{C.P.} (100)

= \frac{105}{60} (100)

= 1.75 × 100

= 175%

Yes, the classmate is correct.

Hence, the markup is 175% and the classmate is correct.

5 0
3 years ago
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