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Scilla [17]
2 years ago
12

Pls help I have to evaluate

Mathematics
1 answer:
Lemur [1.5K]2 years ago
3 0
A)
Exact Form:
−31/3

Decimal Form:
−10.33333

Mixed Number Form:
-10 1/3

b)
Exact Form:
17/12

Decimal Form:
1.416666

Mixed Number Form:
1 5/12
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Suppose a city with population 600, 000 been growing at a rate of 3% per year. If this rate continues, find the population of th
Yanka [14]

Answer:

600,000(1+0.03)^20 that’s your equation. use a calculator. remove decimals from your answer because its not possible

5 0
3 years ago
One angle of an isosceles triangle measures 100°. Which other angles could be in that isosceles triangle? Choose all that apply.
Ivenika [448]

Answer:

40 degrees

Step-by-step explanation:

The sum of the angles is 180.

A 100 degree angle cannot be a base angle because then

the sum of the base angles would be 200 degrees.

The 100 must be the vertex angle.

Equation:

x + x + 100 = 180

2x = 80

x = 40 degrees.

Each of the base angles is 40 degrees.

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3 years ago
ASAP<br> -will mark brianist
Rom4ik [11]

Answer:

C

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Write the equation of a sine or cosine function to describe the graph.
juin [17]

Step-by-step explanation:

The equation of a trigonometric function is

y = a  \sin(bx + c) + d

or

y = a \: cos(bx + c)  + d

Let define some variables,

D is the midline, this refers to the midpoint of the highest y value and lowest y value. Some textbooks call it the vertical translations but it is the same thing.

A is the amplitude. The amplitude is the distance from the midline to the highest y value. Some distance is non negative, the formula for the amplitude is

|a|

The period is how often the wave repeats itself on a interval.

Period can't be negative so the formula for period is

\frac{2 \pi}{ |b| }

To find the period, look at the extreme points.

The phase shift tells us if the sinusoid have been shifted to the right or left. The formula for the phase shift

bx + c = 0

Solving for x gives us

x =  \frac{  - c}{b}

If our x is negative, we have a phase shift to the right

If our x is Positve, we have a phase shift to the left.

Let solve this equation, Let use Sine since sin(0)=0,

The smallest y value here is 0, and the highest is 2, so the amplitude is 1.

d = 1

Next, the distance from the max to the midline is 1, as well the min to the midline is also 1.

So

a = 1

We have minimum at 0, and 8, so our period is 8.

\frac{2\pi}{b}  = 8

Solve for b,

\frac{\pi}{4}  = b

Plug this in the equation.

1 \sin( \frac{\pi}{4} x)  +

y =  \sin( \frac{\pi}{4} x)  + 1

The graph passes through (4,2) so let see if that holds true for our equation

2 =  \sin( \frac{\pi}{4} (4))  + 1

2 =  \sin(\pi)  + 1

2 = 0 + 1

2 = 1

This doesn't hold true, so we must have a phase shift

Notice that

\sin( \frac{\pi}{2} )  = 1

So if we shift this pi/2 to the right, we can get our equation to be true.

y =  \sin( \frac{\pi}{4} x -  \frac{\pi}{2} )  + 1

This equation works so our equation is

y =  \sin( \frac{\pi}{4} x -  \frac{\pi}{2} )  + 1

3 0
2 years ago
Simplify the expression 6h+​(−7.9d​)−16+5d−3.3h.
alina1380 [7]
-2.9d-16-3.3h pemdas
8 0
2 years ago
Read 2 more answers
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