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3 years ago

According to this diagram, what is cos 28? ASAP PLEASE !!

Mathematics

2 answers:

Tcecarenko [31]3 years ago

7 0

Answer: Option A; cos(28°) = 15/17

Step-by-step explanation:

You must remember that for a triangle rectangle we have that:

Sin( angle) = (opposite cathetus)/hypotenuse

cos(angle) = (adjacent cathetus)/hypotenuse

tan(angle) = (opposite cathetus)/(adjacent cathetus)

We want to find the cos(28°), then we can use the second relation, where the adjacent cathetus is 15 units long, and the hypotenuse is 17 units.

cos(28°) = 15/17

Then the correct option is A.

hodyreva [135]3 years ago

6 0

Answer:

Cos 28 = 15/17

Step-by-step explanation:

Cosine is adjacent/hypotenuse

(15/17 = 0.8823529...

~0.88)

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sleet_krkn [62]

Answer:

Step-by-step explanation:

A^2+B^2=C^2 is the pythagorean theorem to find a missing siede of a triangle.

First triangle on the right:

5^2+B^2=10^2

25+B^2=100

B^2=75

B=8.66025404

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Second triangle of left:

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3 years ago

Antonio deposits $1,750 into an account that earns 5% interest compounded daily. How much interest does he earn after 1 day?

Natali [406]

Answer:

He earns $0.24 in interest after 1 day.

Step-by-step explanation:

Compound interest:

$A(t)=P(1+\frac{r}{n})^{n\ast t}$

In which:

P is the principal, the amount of the initial deposit.

r is the yearly interest rate, as a decimal.

n is the number of compoundings during a year.

t is the number of years.

In this question:

Deposit of $1,750, so P = 1750.

Interest rate of 5%, so r = 0.05.

Compounded daily. A year has 365 days, so n = 365.

After 1 day. 1 day is 1/365 of an year, so t = 1/365.

The amount he will have after one day will be:

$A=1750(1+\frac{0.05}{365})^{\frac{1}{365}\ast365}=1750(1+\frac{0.05}{365})=1750.24$

The interest earned will be:

Amount after 1 day subtracted by the deposit.

Deposit of $1,750.

After 1 day, he will have $1,750.24.

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He earns $0.24 in interest after 1 day.

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1 year ago

I need help................

FrozenT [24]

Answer:

a) $( $\frac{7200}{m}$ )

b) $(20m + 7080 - 43200/m)

d) m= 36 or m= -60

e) $200

Step-by-step explanation:

Please see the attached pictures for full solution.

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3 years ago

Add the following polynomials

Yuri [45]

Answer is x² + 2x + 5

<u>Step-by-step explanation:</u>

Step 1:

Add the two polynomials

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4 years ago

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3 years ago