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raketka [301]
2 years ago
8

Solve sin2x=-1/2 on the interval 0≤ angle≤360°​

Mathematics
1 answer:
GREYUIT [131]2 years ago
8 0

Answer:

x=135

Step-by-step explanation:

We know that sin(270) = -1/2

So 2x = 270

x = 135

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Find the simple interest earned on $2600 invested for 3 years at 12% per annum​
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Answer:

$936

Step-by-step explanation:

Simple interest is money you can earn by initially investing some money (a.k.a the principal). In return, a percentage (a.k.a the interest) of the initial money invested is added to the principal, this is what makes your initial investment grow.

The equation for simple interest is:

I = P x r x t

P = Principal, $2600

r = interest rate, 12%

t = time involved, 3 years

Fill in the values:

2600 × 0.12 × 3 = $936.00

5 0
3 years ago
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Write 22 4/5 as a decimal​
romanna [79]

change to improper fraction:

22 4/5

22*5=110+4=114

114/5

divide:

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Thus, 22 4/5 as a decimal is 22.8

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The total cost, in dollars, to order x units of a certain product is modeled by C(x)=5x²+320 . According to the model, for what
lora16 [44]

Answer:

The minimum cost per unit is obtained for an order of 8 units.

Step-by-step explanation:

Since the total cost is modeled by;

C(x)=5x²+320

Then;

1 unit costs; C(x)=5(1)²+320 = 325

cost per unit 325/1 = 325

8 units costs; C(x)=5(8)²+320 = 640

cost per unit = 640/8 = 80

80 units costs; C(x)=5(80)²+320 = 32320

Cost per unit = 32320/80 = 404

The minimum cost per unit is obtained for an order of 8 units.

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2 years ago
I’ve been stuck on this question for quite some time. I was struggling so I needed help, can you help me?
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I can’t see all the question !!
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7 0
3 years ago
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