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3 years ago

This graph represents which of these expressions?

Mathematics

1 answer:

Lelu [443]3 years ago

6 0

Answer:

x > 43

Step-by-step explanation:

Open circle at 43, which means it is not equal to 43

Line goes to the right, which means x is greater than

x > 43

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Filipe is buying materials for making his new comic books. He purchases a notebook for $7

Vikki [24]

Answer:$0.36

Step-by-step explanation:

0.42 devided by 7= 0.06

0.06 times 6= 0.36

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3 years ago

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There are 4 red golf balls and 2 green golf balls in a bucket. You select a ball at random, keep it, and select again. Find the

Alona [7]

Answer:

Step-by-step explanation:

It should be 2/3 because there are 6 balls and two of them are green which gives the fraction 2/6 and can be reduced to 1/3

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3 years ago

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we need any help on this home I can you turn it in by Monday so can you help me please. i need on 9 and 10

marta [7]

9) yes, he is correct.

50% as a decimal would be 0.50
7% as a decimal would be 0.07

10)Buy and Bye has a greater discount because 30% as a decimal is 0.30 and 1/4 as a decimal is 0.25.

0.30 is bigger than 0.25 so it is a bigger discount

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3 years ago

The distance around a circle<br> is 56.55 meters long. What<br> diameter of the circle?

VARVARA [1.3K]

Answer:

113.1

Step-by-step explanation:

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4 years ago

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Find the uncertainty in a calculated average speed from the measurements of distance and time. Average speed depends on distance

zzz [600]

Answer:

$\frac{\Delta v}{v}=0.426$

Step-by-step explanation:

you have that the average sped is given by the following formula:

$v(x,t)=\frac{x}{t}$

The uncertainty formula for a division is given by:

$\frac{\Delta v}{v}=\sqrt{(\frac{\Delta x}{x})^2+(\frac{\Delta t}{t})^2}$ (1)

Δv: uncertainty in speed

Δx: uncertainty in the distance = 0.9m

Δt: uncertainty in time = 0.7s

x: distance = 8.1m

t: time = 1.7s

You replace the values of all parameters in the equation (1):

$\frac{\Delta v}{v}=\sqrt{(\frac{0.9}{8.1})^2+(\frac{0.7}{1.7})^2}\\\\\frac{\Delta v}{v}=0.426$

Hence, the relation between the uncertainty in the average velocity is 0.426

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3 years ago