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7nadin3 [17]
3 years ago
13

-1 is it a rational

Mathematics
2 answers:
Yuki888 [10]3 years ago
8 0

Yes -1 is a rational number. We can express it as a fraction of two whole numbers

One way is -1 = -1/1

Firlakuza [10]3 years ago
4 0
Yes it is I don’t know the exact exclamation but I know it’s rational
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Need help ASAP!!!( Algebra 1)
Sphinxa [80]

Answer:

[negitive]56 plus positive 56+15=-15

Step-by-step explanation:

i explained it up there

5 0
3 years ago
A laser travels from glass to water at an angle of 35° with the normal, Θ1. If water has an index of refraction of 1.33 and glas
umka2103 [35]
When light moves from one medium to another, it is refracted. If it moves from a medium with refractive index n1 to one with refractive index n2, with an incidence angle to the surface normal of θ1, the refraction angle θ2 can be calculated from Snell's law.

The Snell's law states that the ratio of the sines of the angles of incidence and refraction of a wave (in this case beam/light) are constant when it passes between two given media.

n_1\sin\theta_1=n_2\sin\theta_2

Given that a <span>laser travels from glass to water at an angle of 35° with the normal, </span>\theta_1<span>. If water has an index of refraction of 1.33 and glass has an index of refraction of 1.52, then we have:

</span>1.52\sin35^o=1.33\sin\theta_2 \\  \\ \Rightarrow\sin\theta_2= \frac{1.52\sin35^o}{1.33} =0.6555\therefore\theta_2=\sin^{-1}0.6555\approx41^o<span>
</span>
7 0
3 years ago
Help~~~~~~~~~~~~~~~~~~~~~~~~~
igor_vitrenko [27]

Answer:

28.25 square units

Step-by-step explanation:

A circumference of the circle is

C=2\pi r,

where r is the radius of the circle.

So,

18.84=2\pi r\\ \\r=\dfrac{18.84}{2\pi}=\dfrac{9.42}{\pi}\ cm

The area of the circle is

A=\pi r^2

Substitute the value of the radius:

A=\pi \cdot \left(\dfrac{9.42}{\pi}\right)^2=\dfrac{9.42^2}{\pi}\approx 28.25\ un^2

8 0
3 years ago
Read 2 more answers
NEED THIS ANSWER ASAP!!! What is the end behavior of the graph of the polynomial function f(x)= 3x^6+30x^5+75x^4?
sergij07 [2.7K]

Answer:

Step-by-step explanation:

Factor the Polynomial.

3

x

4

(

x

+

5

)

2

5 0
3 years ago
Diego Rollins is paid $10.20 an hour for a regular 40-hour week at the
Aloiza [94]

Answer:

$1632

Step-by-step explanation:

Hourly pay for Diego = $10.20

Weekly hours = 40 Hours

Basic earning = 10.20 × 40 = $408

Overtime pay = 15 × Hourly rate = 15 × 10.20 = $153

Total overtime = 8 hours

Overtime earning = 153 × 8 = 1224

Total earning for the week = 408 + 1224 = $1632

5 0
3 years ago
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