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4 years ago

Need 31,43,45 by 2:00!!

Mathematics

1 answer:

antoniya [11.8K]4 years ago

4 0

31. t= 10/9

43. x= -1/14 (the “-“ can go either on the top or bottom)

45. z= 0.21

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Dani is training for a marathon. Her target speed is 25 miles per hour. She currently runs 15 miles in 1/2 an hour. Does she ach

marissa [1.9K]

Answer:

target speed for the marathon has been achieved and exceeded

Step-by-step explanation:

Given that :

Target speed = 25 mph

Current speed = 15 miles in 1/2 an hour

Current speed :

15 miles in 0.5 hours

X miles in 1 hour

0.5x = 15 miles

X = 15 / 0.5

X = 30 miles per hour

Hence, current speed in miles per hour = 30mph

This means that her target speed for the marathon has been achieved and exceeded

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3 years ago

What is the value of x?

hram777 [196]

Sum of angles of a triangle = 180°

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4 years ago

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vichka [17]

$0.\overline{8}=\dfrac{8}{9}\\\\0.\overline{8}\cdot88=\dfrac{8}{9}\cdot88=\dfrac{704}{9}=78.\overline{2}$

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3 years ago

Slope of 5/2 and with y-intercept of -2

gtnhenbr [62]

The answer you are looking for is y=5/2x-2.

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4 years ago

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The product of two irrational numbers is (sometime, always, never) rational.

Mrac [35]

sometimes

Step-by-step explanation:

irrational numbers are numbers that cannot be expressed as a quotient of 2 numbers

rational numbers are numbers that can be expressed as a fraction.

for example let's take these examples of iirational numbers:

$\sqrt{2} \times \sqrt{2} = 2$

$\pi \times \pi = 9.86960....$

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