3 years ago

Trig help ..............

1 answer:

5 0

SinA = 3/5
cosA = 4/5

cosB = 3/5
sinB = 4/5

sin(A+B) = sinAcosB + cosAsinB

= (3/5)(3/5) + (4/5)(4/5)
= 9/25 + 16/25
=(9+16)/25
=25/25
=1

therefore, the answer is B

You might be interested in

Which is a graph of y=3. - 1?

mixer [17]

Answer:

Step-by-step explanation:

7 0

3 years ago

Determine whether the following relation is a function. {(-6, – 8), (5, 1). (9.-4), (7,2), (15, 0)}

lidiya [134]

This relation is a function. None of the x-values repeat. Each y-value belongs to a specific x-value.

4 0

3 years ago

What is the total amount for an investment of $1600 invested at 4.25% for 20 years and compounded continuously?

galina1969 [7]

Answer:

$3743.43

Step-by-step explanation:

The amount is given by the formula ...

A = Pe^(rt)

where P is the principal, r is the annual rate compounded continuously, and t is the number of years. Filling in the values, we get ...

A = $1600·e^(0.0425·20) = $1600·e^0.85

≈ $1600·2.33964685 ≈ $3743.43

The amount in the account will be $3743.43.

5 0

3 years ago

Solving quadratic equation by extracting square roots x2 - 100 = 0

hichkok12 [17]

Answer:

$x=+-10$

Step-by-step explanation:

$x^2=100\\\sqrt{x^2}=\sqrt{100}\\x=+-10$

5 0

3 years ago

Read 2 more answers

How do economics measure a nations standard of living

Veseljchak [2.6K]

Answer:

it helps people live their lives better

8 0

3 years ago