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2 years ago

Can someone answer this

Mathematics

2 answers:

PIT_PIT [208]2 years ago

7 0

Answer:

Step-by-step explanation:

multiply by 6

4-24x+21=-54x+5

54x-24x=5-4-21

30x=-20

x=-20/30=-2/3

mestny [16]2 years ago

7 0

X= -2/3 is this the answer you’re looking for?

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How did I get a 2 here (simplifying ratios)

PilotLPTM [1.2K]

Answer:

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Step-by-step explanation:

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3 years ago

Is -20 an irrational number or rational number

Gekata [30.6K]

Answer: Rational number

Step-by-step explanation:

Let's write out the properties of rational and irrational numbers.

Rational

Integers
Whole numbers
finite decimals
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Looking at the list we made, we can say that -20 is a rational number. -20 is an integer and a whole number. Therefore, it is a rational number.

3 0

3 years ago

Read 2 more answers

Greg is in a car at the top of a roller-coaster ride. The distance, d, of the car from the ground as the car descends is determi

ANTONII [103]

Answer:

It takes 3 seconds over the interval [0,3]

Step-by-step explanation:

To find when the roller coaster reaches the ground, find when d=0.

$0=144-16t^2$

To solve divide each term by 16 and factor:

$\frac{0}{16}=\frac{144}{16} -\frac{-16t^2}{16} \\0= 9 - t^2\\0=(3-t)(3+t)$

Solve for t by setting each factor to 0.

t-3=0 so t=3

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This means the car is in the air from 0 to 3 second.

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3 years ago

Ayo help asap ??? so confusing anyways

lesya692 [45]

Answer:x=0 is the first statement, 3x+2<12 is the greater justification

Step-by-step explanation:

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3 years ago

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mafiozo [28]

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3 years ago