3 years ago

Unit Exam: Rational Numbers

Mathematics

1 answer:

Minchanka [31]3 years ago

8 0

Assuming that you’re asking for a fraction of 0.31 where 31 repeats?

31/99

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Is 7.787887888… a rational number? PLEASE ANSWER ASAP!! WILL GIVE BRAINLIEST!!!!!

Olenka [21]

Answer:

yes 7 787887888/1,000,000,000

Step-by-step explanation:

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3 years ago

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The park shown is in the shape of a square. Is the perimeter rational or irrational? Area = 24,200 yd 2

dangina [55]

Answer:

irrational

Step-by-step explanation:

A = s^2

s^2 = 24,200

$s = \sqrt{24200}$

$s = \sqrt{242 \times 100}$

$s = \sqrt{100 \times 121 \times 2}$

$s = 10 \times 11\sqrt{2}$

$s = 110\sqrt{2}$

P = 4s

$P = 4 \times 100 \sqrt{2}$

$P = 440 \sqrt{2}$

The perimeter is irrational.

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3 years ago

Heidi’s older sister needs to take either Chemistry (C), Geometry (G), or Physics (P) this year. She can take the class during a

azamat

Answer:

Yes. You can make a tree diagram with each subject at the top and the periods as the branches or with the periods at the top and each subject as a branch. Both ways provide the same number of outcomes, 18

Step-by-step explanation:

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Using the distance formulas, find the equation of a parabola with a focus of (3, 4) and a directrix of y = −2.

Charra [1.4K]

Try using a site like Khan Academy to get a solution

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3 years ago

19. Lavina wants to buy a rocking chair for $160. She will pay 10% down and pay the rest in six monthly installments. What will

a_sh-v [17]

Number 19

price :$16
pay :10%
ask:each monthly payment
answer:
pay =10%×$160=$16
each monthly payment
={$160-$16}÷6
144÷6
$24
number 20
weight earth:150 pounds
ratio :5:7
weight neptune :7/5×150=210 pounds

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3 years ago