3 years ago

Cos87°cos33° - sin87°sin33°

Mathematics

1 answer:

alina1380 [7]3 years ago

6 0

Answer:

- $\frac{1}{2}$

Step-by-step explanation:

cos(87° + 33°) = cos(120°) = - $\frac{1}{2}$

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Round 425 to the nearest ten and to nearest hundred

Sladkaya [172]

Answer:

430;400

Step-by-step explanation:

So tenth is the 2.. 5 makes it go to 3 430

hundred we look to change 4 so we look at tenths 2 is less than 5 so it stays the same 400

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3 years ago

PLEASE LOOK AT ATTACHMENT-25 POINTS

max2010maxim [7]

Answer:

Step-by-step explanation: 10/2 = 5

20^2= x^2 + 5^2

400=x^2+25

x^2=375

x= 19.4

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2 years ago

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HELP WITH WORD PROBLEM - The quality control engineer of top notch tool company finds flaws in 8 of 60 wrenches examined. Predic

USPshnik [31]

Answer:

The expected ratio: 8/60 = x/2400

=> The number of flawed wrenches in a batch of 2400:

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3 years ago

madam [21]

Answer:

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Step-by-step explanation:

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2 years ago

Maria invests $6,154 in a savings account with a fixed interest rate of 8% compounded continuously. What will the account balanc

Vitek1552 [10]

Answer:

$13,695.98

Step-by-step explanation:

We can use the continuous compound interest formula to solve:

$A = Pe^{rt}$

P = principal amount

r = interest rate (decimal)

t = time (years)

First, lets change 8% into a decimal:

8% -> $\frac{8}{100}$ -> 0.08

Now, lets plug in the values:

$A=6,154e^{0.08(10)}$

$A=13,695.98$

The account balance after 10 years will be $13,695.98

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3 years ago