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Scorpion4ik [409]
3 years ago
13

A jar containing only nickels and dimes contains a total of 60 coins value is 4.45

Mathematics
1 answer:
klemol [59]3 years ago
3 0
The equations would be:

n + d = 60 

5n + 10d = 445

Solved, the answers are that there are 29 nickels and 31 dimes in the jar.
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What is the value of sin-1(1)? negative startfraction pi over 2 endfraction 0 startfraction pi over 2 endfraction π
mariarad [96]

The value of sin-1(1) is negative startfraction pi over 2 endfraction, startfraction -pi over 2 endfraction.

<h3>What is the value of sin (π/2)?</h3>

The value of sin (π/2) is equal to the number 1. The value of the sin-1(1) has to be find out.

Suppose the value of this function is <em>x</em>. Thus,

x=\sin^{-1}(1)

Solve it further,

\sin(x)=(1)              ......1

The value of sin (π/2) and -sin (-π/2) is equal to 1 such that,

\sin\dfrac{\pi}{2}=-\sin\left(-\dfrac{\pi}{2}\right)=1

Put this value in the equation 1,

\sin(x)=\sin\left(\dfrac{\pi}{2}\right)=-\sin\left(-\dfrac{\pi}{2}\right)

Thus, the range will be,

\left(\dfrac{\pi}{2},-\dfrac{\pi}{2}\right)

Thus, the value of sin-1(1) is negative startfraction pi over 2 endfraction, startfraction -pi over 2 endfraction.

Learn more about the sine values here;

brainly.com/question/10711389

3 0
2 years ago
Please helpppp!?!!!!?
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It would be 9!!!
Hope that helps!!!
3 0
3 years ago
Read 2 more answers
Of 56 tuna sandwiches sold, 18 were sold on Friday
LuckyWell [14K]

Answer: 32.14   after round off it will be 32

Step-by-step explanation:

This is how to round 32.14 to the nearest whole number. In other words, this is how to round 32.14 to the nearest integer.

32.14 has two parts. The integer part to the left of the decimal point and the fractional part to the right of the decimal point:

Integer Part: 32

Fractional Part: 14

 

Our goal is to round it so we only have an integer part using the following rules:

If the first digit in the fractional part of 32.14 is less than 5 then we simply remove the fractional part to get the answer.

If the first digit in the fractional part of 32.14 is 5 or above, then we add 1 to the integer part and remove the fractional part to get the answer.

The first digit in the fractional part is 1 and 1 is less than 5. Therefore, we simply remove the fractional part to get 32.14 rounded to the nearest whole number as:

32

6 0
3 years ago
7) Will you ever get 100% red M&amp;M's in a packet? Explain your answer.
andreev551 [17]
No. A machine dispenses all the colors on a conveyor belt that mixes all the available colors.
8 0
2 years ago
How do you solve x/-11 &gt;= -9?
marta [7]
You can cross multiply
-11(-9) x *( 1)
99=1x
99=x
the answer is 99=x
3 0
3 years ago
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