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3 years ago

If the customer's order came to $6.22 and he gave you $20.25 what is his change?

Mathematics

1 answer:

Nataly_w [17]3 years ago

6 0

Subtract 6.22 from 20.25

20.25
06.22
---------
14.03

Your change is $14.03

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What is the square root of 0.4 repeating?

timama [110]

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3 years ago

Solve 6 sin((π/5)x)=5 for the four smallest positive solutions

cupoosta [38]

Answer:

1.568, 3.432, 11.568, 13.432

Step-by-step explanation:

Divide equation $6\sin\left(\dfrac{\pi }{5}x\right)=5$ by 6:

$\sin\left(\dfrac{\pi }{5}x\right)=\dfrac{5}{6}.$

Then

$\dfrac{\pi }{5}x=(-1)^k\arcsin\left(\dfrac{5}{6}\right)+\pi k,\ k\in Z,$

$x=(-1)^k\dfrac{5}{\pi }\arcsin\left(\dfrac{5}{6}\right)+5k,\ k\in Z.$

Since $\arcsin\left(\dfrac{5}{6}\right)\approx 56^{\circ}\approx \dfrac{\pi }{3.2},$

four smallest positive solutions are

1. $\dfrac{5}{3.2}\approx 1.568,\ k=0;$

2. $\dfrac{-5}{3.2}+5\approx 3.432,\ k=1;$

3. $\dfrac{5}{3.2}+10\approx 11.568,\ k=2;$

4. $\dfrac{-5}{3.2}+15\approx 13.432,\ k=3.$

3 0

3 years ago

Find the area of shaded portion.

pickupchik [31]

Answer:89.12 cm ^2

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2 years ago

In which number does the 9 represent 1/10 of the value that it represents in 92300

Eddi Din [679]

Answer:

923000.

Step-by-step explanation:

You want to find the number in which 9 represents 1/10th of its value in 92300. Naturally, this number would be 10 times larger. Multiply 92300 by 10 to get 923000.

7 0

3 years ago

10/10<br> 6x-7=12<br> 5/6<br> 6/19<br> 19/6

alexgriva [62]

Answer:

$10/10 = 1$

$x=\frac{19}{6} \\$

$5/6 =0.83$

$6/19 = 0.31578947$

$19/6 = 3.16$

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3 years ago