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Alenkasestr [34]
3 years ago
6

What is the temperature difference between 180 and -18

Mathematics
1 answer:
rewona [7]3 years ago
4 0
Answer: 162

Explanation: |180| - |-18| = 162
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What’s the original price of a swimsuit discounted 65% on sale for $20.30
mihalych1998 [28]

Answer:

58$

Step-by-step explanation:

1 - 0.35x = 20.30

2 - x = 20.3/0.35

3 - x = $58.00

4 0
2 years ago
Which of the following functions are solutions of the differential equation y'' + y = 3 sin x? (select all that apply)
DiKsa [7]

Answer:

C

Step-by-step explanation:

We must compute the derivatives and check if the equation is satisfied.

A. y'=(3\sin x)'=3\cos x. Differentiate again to get y''=(3\cos x)'=-3\sin x, then y''+y=-3\sin x+3\sin x=0\neq 3\sin x so this choice of y doesn't solve the equation.

B. y'=3\sin x+3x\cos x-5\cosx +5x\sin x=(5x+3)\sin x+(3x-5)\cos x and y''=5\sin x+(5x+3)\cos x+3\cos x-(3x-5)\sin x=(10-3x)\sin x+(5x+6)\cos x, then y''+y=10\sin x+6\cos x\neq 3\sin x so y is not a solution

C. y'=\frac{-3}{2}\cos x+\frac{3}{2}x\sin x hence y''=\frac{3}{2}\sin x+\frac{3}{2}\sin x+\frac{3}{2}x\cos x=3\sin x+\frac{3}{2}x\cos x. Then y''+y=3\sin x+\frac{3}{2}x\cos x-\frac{3}{2}x\cos x=3\sin x so y is a solution.

D.y'=-3\sin x and y''=-3\cos x, then y''+y=0 thus y isn't a solution

E. y'=\frac{3}{2}\sin x+\frac{3}{2}x\cos x hence y''=\frac{3}{2}\cos x+\frac{3}{2}\cos x-\frac{3}{2}x\sin x=3\cos x-\frac{3}{2}x\cos x. Then y''+y=3\cos x-\frac{3}{2}x\cos x-\frac{3}{2}x\cos x=3\cos x\neq 3\sin x then y is not a solution.

3 0
3 years ago
Sergio comma Eduardo comma Maria comma Simone comma Ian comma Dawn comma Larry comma and Tyrone have all been invited to a dinne
ANTONII [103]

Answer:

a.

Step-by-step explanation:

5 0
3 years ago
What is the coefficient in 3x + 9 - 15
iVinArrow [24]

。☆✼★ ━━━━━━━━━━━━━━  ☾

The coefficient is the number before the x

In this case, it is 3

Have A Nice Day ❤

Stay Brainly! ヅ

- Ally ✧

。☆✼★ ━━━━━━━━━━━━━━  ☾

7 0
3 years ago
Read 2 more answers
Need help please :) I’m not sure how to solve this one either
Andrews [41]
The answer is

580|21

6 0
9 months ago
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