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2 years ago

Choose the system of equations which makes the following graph:

Mathematics

1 answer:

solmaris [256]2 years ago

6 0

(5 | -2) should be the solution of the equations

So it workt for c)

3*(5) - 5*(-2) = 25

(5) + 5*(-2) = -5

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You were tiling a kitchen floor that is 10 feet wide by 4 yards long. how many square yards of tile do you need

natali 33 [55]

Hello there!

The correct answer is 13 1/3 yd².

Hope This Helps You!
Good Luck :)

6 0

2 years ago

Read 2 more answers

Line HJ bisects BC at point H BH = 5x - 1 and HC =4x + 3 Frd the length of BC

Levart [38]

Answer:

Step-by-step explanation:

5x - 1 = 4x + 3

x - 1 = 3

x = 4

5(4) - 1 + 4(4) + 3

20 - 1 + 16 + 3

19 + 16 + 3 = 35 + 3 = 38

8 0

3 years ago

If you are 600 m from a batter when you see him hit a ball, how long will you wait to hear the sound of the bat hitting the ball

Molodets [167]

Answer:

The speed of sound at 20°C is 343.42 m/s.

You have to wait 1.75 seconds to hear the sound of the bat hitting the ball

Step-by-step explanation:

Speed of Sound

The speed of sound is not constant with temperature. Generally speaking, the greater the temperature, the greater the speed of sound.

The approximate speed of sound in dry air at temperatures T near 0°C is calculated from:

$\displaystyle v_{\mathrm {s} }=(331.3+0.606\cdot T )~~~\mathrm {m/s}$

The air is at T=20°C, thus the speed of sound is:

$\displaystyle v_{\mathrm {s} }=(331.3+0.606\cdot 20 )~~~\mathrm {m/s}$

$v_{\mathrm {s} }=343.42\ m/s$

The speed of sound at 20°C is 343.42 m/s.

To calculate the time to hear the sound after the batter hits the ball, we use the formula of constant speed motion:

$\displaystyle v=\frac{d}{t}$

Where d is the distance and t is the time. Solving for t:

$\displaystyle t=\frac{d}{v}$

Substituting the values v=343.42 m/s and d=600 m:

$\displaystyle t=\frac{600}{343.42}$

t = 1.75 s

You have to wait 1.75 seconds to hear the sound of the bat hitting the ball

6 0

3 years ago

Which of the following measurements, in centimeters (cm), could be the lengths of the sides of a triangle? Select all that apply

natima [27]

5cm I think or you can try 7cm

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2 years ago

Which correctly describes a cross section of the right rectangular prism if the base is a rectangle measuring 15 inches by 8 inc

weeeeeb [17]

Answer: 2,3, and the last one.... I think

Step-by-step explanation:

7 0

2 years ago