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oksano4ka [1.4K]
3 years ago
8

I have no idea.... please help. And explanation would be me most helpful thing at this point

Mathematics
1 answer:
Tanya [424]3 years ago
5 0

Answer:

c) sin 126°

Step-by-step explanation:

cos(-576°)= -0.80901699437

cos 216°= -0.80901699437

-cos(-36)= -0.80901699437

sin 126°= 0.80901699437

-sin 54°= -0.80901699437

cos 144°= -0.80901699437

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7 marbles are in a bag 2 marbles are red and the rest are black how many marbles in bag are black
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5 marbles are black.

Step-by-step explanation:

7-2=5

7 0
2 years ago
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What is the answer to <br> -x/4-2=x+3
lyudmila [28]

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-4

Step-by-step explanation:

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2 years ago
Please help me on this. you need to match the terms to the correct number.
Gnom [1K]

Answer:

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2 years ago
brenda savings account principal 850, 5.5% annual interest rate and is compounded quarterly for 1 year. what is the compound int
Sedbober [7]
A = $ 861.69

Equation:
A = P(1 + rt)
Calculation:
First, converting R percent to r a decimal
r = R/100 = 5.5%/100 = 0.055 per year,
putting time into years for simplicity,
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then, solving our equation

A = 850(1 + (0.055 × 0.25)) = 861.6875 
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The total amount accrued, principal plus interest,
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3 0
2 years ago
The focus of a parabola is located at (0,–2). The directrix of the parabola is represented by y = 2. Which equation represents t
Archy [21]

Answer:

\boxed{x^2=-8y}

Step-by-step explanation:

(a,b)\ is \ the\ focus\\y=k\ is \ the\ directrice\\\\Formula\ to\ use:\ y=\dfrac{(x-a)^2}{2(b-k)} +\dfrac{b+k}{2} \\\\Here: \ a=0,\ b=-2, \ k=2\\\\y=\dfrac{(x-0)^2}{2(-2-2)} +\dfrac{-2+2}{2} \\\\so\ y=-\dfrac{x^2}{8} \\\\or\ x^2=-8y

3 0
2 years ago
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