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Reil [10]
4 years ago
10

Which statements correctly describe the cosine and sine functions? Check all that apply.

Mathematics
1 answer:
VMariaS [17]4 years ago
4 0

Answers:

B: <em>The sine function increases on (0°, 90°) and (270°, 360°).</em>

C: <em>The cosine function decreases on (0°, 180°).</em>

E: <em>Both the cosine and sine functions have a maximum value of 1.</em>

F: <em>Both the cosine and sine functions are periodic.</em>

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factorise completely (x plus 2) Square - (x - 4) Square and hence find then value of 1000 Square minus 992 Square​
tekilochka [14]

Answer:

x^2+3x+8

15936

Step-by-step explanation:

\left(x+2\right)^2-\left(x-4\right)

\left(x+2\right)\left(x+2\right)-\left(x-4\right)

x^2+2x+2x+4-(x-4)

x^2+4x+4-\left(x-4\right)

x^2+4x+4-x+4

x^2+3x+8

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1000000-984064

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3 0
3 years ago
8. What will be the fraction remaining on day 6? *
Lilit [14]

Answer: 1/32

Step-by-step explanation: Each day, the fraction/number is dividing by 2. Therefore, day 5 would be 1/16, and 1/16 divided by 2 would be 1/32.

3 0
3 years ago
Let xy=3 and dy/dt=4. Find dx/dt when x=5
tino4ka555 [31]

Answer:

xy = 3

d/dt(xy) = d/dt(3)

ydx/dt + xdy/dt = 0

y = 3/x so substitute 3/5 for y, 5 for x, and 5 for dy/dt; and solve for dx/dt.

3/5(dx/dt) + 5(5) = 0

3/5(dx/dt) = -25

dx/dt = -125/3

Step-by-step explanation:

this should be able to help you :)

4 0
3 years ago
Bottled water in the vending machine costs $1.25. This price is the markup from the wholesale cost of $0.20. What is the markup
Setler79 [48]

Answer:

626%

Step-by-step explanation:

.20x626 = 125.2

125.2÷100=$1.25

4 0
3 years ago
The polynomial x^2 + 9 is a factor of x^5 + x^4 - 18x - 18. Please select the best answer from the choices provided T or F
Simora [160]

Answer:

F

Step-by-step explanation:

6 0
4 years ago
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