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HACTEHA [7]
3 years ago
14

Is 128.5 rational or irrational

Mathematics
1 answer:
bearhunter [10]3 years ago
6 0

Answer:rational because The numbers behind the decimals are not infinite

Step-by-step explanation:

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Help? which one should I choose
Delvig [45]

Answer:

true

Step-by-step explanation:

For 3 sides to be able to form a triangle, we need to check that the 2 shorter sides can "touch" when "stemming" out of the long side.

The long side has length 7cm, so the sum of 2 shorter sides must be bigger than 7cm for them to "touch". Note: if the sum was 7cm, the only way they would touch is if they were laid along the long side, so it would not be a triangle - it would be a segment.

Fortunately, 3cm + 5cm > 7cm, so we can form a triangle.

7 0
3 years ago
The Kingda Ka roller coaster is 456 ft tall. If you are at the top of the roller coaster and your friend is a horizontal distanc
Goshia [24]
Angle of elevation. 
<span>On the first, the 456 is the opposite leg and the 837 is the adjacent to the angle of elevation so use tangent (from soh cah toa); x = the angle measure </span>

<span>tan x = 456/837 </span>
<span>inverse tan (456/837) = x so do that on your calculator (be sure it is in degree mode). </span>

<span>Then for Ramsey, 1453 is opposite leg and 2960 is adjacent so you have tan x = 1453/2960 and do like the first one.</span>
8 0
3 years ago
Consider the graph of the cosine function shown below.
nata0808 [166]

Answer:

a. Amplitude: 4

Period: 1

b. The maximum values occur at \theta=0,1,2

The minimum values occur at \theta=\frac{1}{2},\frac{3}{2}

The zeros occur at \theta=\frac{1}{4},\frac{3}{4},\frac{5}{4},\frac{7}{4}

Step-by-step explanation:

We can see from the graph that;

-4\le f(x) \le 4.

This implies that;

|A|=4.

The amplitude is 4.

The function also completed one full cycle on the interval [0,1]

The period is

T=|1-0|=1

The maximum values occur at \theta=0,1,2

The minimum values occur at \theta=\frac{1}{2},\frac{3}{2}

The zeros occur at \theta=\frac{1}{4},\frac{3}{4},\frac{5}{4},\frac{7}{4}

This is where the graph intersected the x-axis.

7 0
3 years ago
Witch one Is in order
Blizzard [7]
What's the difference between A and D? but its those two
7 0
3 years ago
angle A and angle B are complementary, that is their measurements add up to 90. Angle B measures 32 more than angle A. what are
dmitriy555 [2]

<em>Complementary= 90 Degrees </em>

<em>Equation: x + x = 90 </em>

A = x

B = x + 32

<em>2x = 90 - 32 </em>

<em>2x = 58 </em>

<em>x = 29 </em>

<em>Angle A = 29 degrees </em>

<em>Angle B = 61 degrees.</em>


6 0
3 years ago
Read 2 more answers
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