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2 years ago

Find the vale of x help please

Mathematics

2 answers:

dezoksy [38]2 years ago

4 0

So u got opposite and hypotenuse right? So that means u need to use O/H so that means you need to use sine. Therefore this is trigonometry and 4/sin 45 is ur answer mate alright? Tossed

krek1111 [17]2 years ago

4 0

Answer:

the answer is 4 with a square root of 2

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If Margie worked 47 hours at $8.00 an hour, what is her weekly gross pay?

allochka39001 [22]

The answer is 376$ because 47 x 8.00 = 376$

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3 years ago

Help meh asap<br><br> Write a verbal expression for 4(n + 6)

Sphinxa [80]

Four times the sum of n plus six

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3 years ago

Read 2 more answers

Pls help ill give points

Dafna1 [17]

I hope you don't find the solution too messy. If there is anything you don't get. Let me know and I will explain it:

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3 years ago

Question 1: The water level in a tank can be modeled by the function h(t)=4cos(+)+10, where t is the number of hours

Amanda [17]

Answer:

Question 1: The hours that will pass between two consecutive times, when the water is at its maximum height is π hours

Question 2: Sin of the angle is -0.8

Step-by-step explanation:

Question 1: Here we have h(t) = 4·cos(t) + 10

The maximum water level can be found by differentiating h(t) and equating the result to zero as follows;

$\frac{\mathrm{d} h(t)}{\mathrm{d} t} = \frac{\mathrm{d} \left (4cos(t) + 10 \right )}{\mathrm{d} t} = 0$

$\frac{\mathrm{d} h(t)}{\mathrm{d} t} = - 4 \times sin(t) = 0$

∴ sin(t) = 0

t = 0, π, 2π

Therefore, the hours that will pass between two consecutive times, when the water is at its maximum height = π hours.

Question 2:

B = (3, -4)

Equation of circle = x² + y² = 25

Here we have

Distance moved along x coordinate = 3

Distance moved along y coordinate = -4

Therefore, we have;

$Tan \theta = \frac{Distance \ moved \ along \ y \ coordinate}{Distance \ moved \ along \ x \ coordinate} = \frac{-4}{3}$

$\therefore \theta = Tan^{-1}(\frac{-4}{3}) = -53.13^{\circ}$

Sinθ = sin(-53.13) = -0.799≈ -0.8.

5 0

2 years ago

(40 POINTS)

Y_Kistochka [10]

Answer:

1. f(0) = 501170

2. decreasing

3. 2% decrease

4. 302438

Step-by-step explanation:

In 1995 x=0

f(x) = 501170(0.98)^0

f(0) = 501170

The population is decreasing since we are multiplying by .98 ^x

.98 is less than 1 so it is getting smaller each time.

1 -.98 = .02

It is decreasing by 2 % each year

2020-1995 =25 years

f(25) = 501170(0.98)^25

=302438.41862

Rounding to the nearest whole number

302438

7 0

3 years ago