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Verdich [7]
3 years ago
7

Choose 3 values for x that would make this inequality true x-4<20​

Mathematics
1 answer:
Lyrx [107]3 years ago
8 0

Answer:

5

10

15

Step-by-step explanation:

5 - 4 < 20

1 < 20 which is true

10 - 4 < 20

6 < 20 which is true

15 - 4 < 20

11 < 20 which is true

Hope it helped

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Is the point (5,-3) on the circle defined by (x-5)^2+(y+3)^2=4
Mariulka [41]
It can be defined by the equation.

3 0
3 years ago
18/s=3 what’s the value of s
Lilit [14]

Answer:

s=6

Step-by-step explanation:

18/s = 3

Multiply each side by s

18/s *s = 3*s

18 =3s

Divide each side by 3

18/3 =3s/3

6 =s

5 0
3 years ago
Read 2 more answers
Create a data set describing two variables, with at least five data points, that has an equation for the line of best fit of y =
Ira Lisetskai [31]

Answer:

X = 2, 4, 6, 7, 9

Y = 29, 33, 37, 39, 43

Step-by-step explanation:

Given a best fit line of :

y = 2x + 25

Take points X as :

X = 2, 4, 6, 7, 9

X = 2

y = 2(2) + 25 = 4 + 25 = 29

X = 4

y = 2(4) + 25 = 8 + 25 = 33

X = 6

y = 2(6) + 25 = 12 + 25 = 37

X = 7

y = 2(7) + 25 = 14 + 25 = 39

X = 9

y = 2(9) + 25 = 18 + 25 = 43

5 0
2 years ago
Use the elimination method to solve the following system of equations.
aliya0001 [1]
The answer 
<span>2x - y + z = -3          (1)
2x + 2y + 3z = 2       (2)
3x - 3y - z = -4          (3)

</span> (1) - (2)              3y +2z =5
 3 .(1) - 2.(2)       3y+5z = -1<span>

let 's solve 
</span>3y +2z =5
3y+5z = -1<span>
z= - 2, and 3y =5+4=9,  y=3, so  </span>2x - 3 -2 = -3 implies x= 1
<span>
finally x=1, y=3 and z= -2
proof 
</span>2x - y + z = -3??     2.1 - 3 -2 = -3  (true)<span>

</span>
3 0
3 years ago
According to astronomers, what is a "light year" answer key
liberstina [14]
A light-year is defined as the distance the light can cover in one year.

The light travels at speed of c=3 \cdot 10^8 m/s, and one year converted into seconds is
1 y = 365  \frac{d}{y} \cdot 24  \frac{h}{d} \cdot  60 \frac{m}{h} \cdot 60  \frac{s}{m}=3.15 \cdot 10^7 s

So the distance covered by the light in one year is
S=vt =(3 \cdot 10^8 m/s)(3.15 \cdot 10^7 s)=9.45 \cdot 10^{15} m
And this is the distance that corresponds to one light-year.
3 0
3 years ago
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