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RSB [31]
3 years ago
12

Write the expression in terms of cosine.please help.

Mathematics
1 answer:
Aleks04 [339]3 years ago
4 0

Answer:

cos13°

Step-by-step explanation:

Using the cofunction identity

sinx° = cos(90 - x)°

sin77° = cos(90 - 77)° = cos13°

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Diagram not drawn to scale<br> please helppp
pychu [463]

Answer:

144?

Step-by-step explanation:

8 0
2 years ago
a ball is thrown vertically upward from the ground with an initial velocity of 60 ft/sec. how high will the ball go?
vazorg [7]

Answer:

The ball will go to maximum height of 56.25 meters.

Step-by-step explanation:

It is given that, a ball is thrown vertically upward from the ground. Initial velocity of the ball, v = 60 ft/sec

Initial height is 0 as the ball is thrown from ground. The equation of projectile is given by :

h(t)=-16t^2+vt+h

h = 0

h(t)=-16t^2+60t..............(1)

We need to find the maximum height reached by the ball. For maximum height,

\dfrac{dh(t)}{dt}=0

\dfrac{d(-16t^2+60t)}{dt}=0

t = 1.875 seconds

Put the values of t in equation (1). So,

h(t)=-16(1.875)^2+60(1.875)

h(t) = 56.25 meters

So, the ball will go to maximum height of 56.25 meters. Hence, this is teh required solution.

3 0
3 years ago
Jason has to finish the 40% of an art project that Has taken him a total of two hours so far if he continues to work at the same
Nitella [24]

Answer:

in total 5 hours

Using proportions part/whole, percent/100 you put the 40 in the percent spot and the 2 in the part spot cross multiply and divide so 2 x 100 divided by 40 and you get 5

6 0
2 years ago
Write a real world problem in which you would solve the equation a+12=30
Phoenix [80]

You could say “you had 18 t-shirts and bought 12 more and now you have a total of 30 t-shirts”

5 0
2 years ago
Can u guys PLEASE answer the depreciation question ASAP. THIS IS URGENT!
Furkat [3]

Answer: the value of the car after 7 years is $11220

Step-by-step explanation:

The formula for determining depreciation is expressed as

A = P(1 - r)^t

Where

A represents the final value of the car after t years.

P represents the present value of the car.

r represents the rate of depreciation

t represents the number of years.

From the information given

P = 35000

r = 15% = 15/100 = 0.15

t = 7 years

Therefore,

A = 35000(1 - 0.15)^7

A = 35000(0.85)^7

A = 11220.198

Rounding up yo the nearest dollar, it becomes $11220

8 0
3 years ago
Read 2 more answers
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