3 years ago

Three students, Carson, Andrew, and London, line up one behind the other. How

Mathematics

1 answer:

bezimeni [28]3 years ago

8 0

They can stand 9 different ways

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Which line segment is a chord of o C in the diagram below?

Sholpan [36]

Answer:

A. AB

Step-by-step explanation:

line segment AB is a chord.

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3 years ago

The cost to rent a construction crane is $750 per day plus $250 per hour of use. What is the maximum number of hours the crane c

anzhelika [568]

Let's use x to represent the number of hours since we don't know that.

750+250x<2500
Subtract 750 from both sides.
250x<1750
Divide both sides by 250.
x<7
The most hours that they can do is 7, or it can be less.

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4 years ago

Part A: Using complete sentences, explain how to convert zero point 22 repeating to a fraction. (2 points)

Helen [10]

Answer:

a) $\frac{2}{9}$

b) Irrational

Step-by-step explanation:

a) Let $y=0.\bar2.....(a)$

Then $100y=22.\bar2.....(b)$

Subtract (a) from (b)

$100y-y=22.\bar2-0.\bar2$

$\implies 99y=22$

$y=\frac{22}{99}=\frac{2}{9}$

b) From part a) $0.\bar2$ is a rational number but $\sqrt{112}=4\sqrt{7}$ is an irrational number.

But $0.\bar2\times \sqrt{112}$ is not a rational number because the product of a rational number and an irrational number is an irrational number.

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4 years ago

Liam had 75% more magnets than John at first. Liam gave away 200% as many magnets as John. John was left with 25% of the magnets

cluponka [151]

Answer: 6/4x

Then John ended up with v/4 magnets and gave away (3/4)x

Liam gave away 2 ( 3/4)x = 6/4x magnets and was left with x/4 magnets

Notice that they have the same number now so John has 100% of Liam's magnets

Step-by-step explanation:

Give me brainllest

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3 years ago

How to solve -5x(-7xcubed)

DerKrebs [107]

-5x(-7x^3)

Because -7x^3 is in parentheses, you add the degrees together:

35x^4

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3 years ago