2 years ago

EASY QUESTION HELP AND HURRRYYYYY!!!!

Mathematics

2 answers:

Flauer [41]2 years ago

7 0

Answer:

Step-by-step explanation:

PtichkaEL [24]2 years ago

3 0

Answer:

D, s=v

Step-by-step explanation:

although its scaled, the angles are equal to each other. pls brainliest im new and never got brainliest before thx appreciate it

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Andre picks blocks out of a bag 60 times and notes that 43 of them were green. What should Andre estimate for the probability of

kiruha [24]

43/60 would be the probability

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2 years ago

A car drives at 45 km/h for 3 hours. How far does the car travel?

stellarik [79]

Answer:

Hey!

The car travelled 135 kilometers!

Step-by-step explanation:

Here you have to do the speed (45km/h) multiplied by the time (3 hours)

45 x 3 = 135

So the car has travelled 135 kilometers!

HOPE THIS HELPS!!

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2 years ago

Read 2 more answers

Debbie is 5 years older than

vovikov84 [41]

Answer:

Susan is 3 years and Debbie is 8 years old. after 2 years Susan will be 5 Years and Debbie will be 10 years old

Step-by-step explanation:

let the present age of Susan be x years then Debbie is x+5 years

in 2 years

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2 years ago

If x^2+1/x^2=3 find the value of x^2/(x^2+1)^2 Express answer as a common fraction. Thanks!!

timama [110]

$x^2+\dfrac1{x^2}=3\implies x^4+1=3x^2\implies x^4-3x^2+1=0$

By the quadratic formula,

$x^2=\dfrac{3\pm\sqrt5}2\implies x^2+1=\dfrac{5\pm\sqrt5}2$

Then

$(x^2+1)^2=\dfrac{25\pm10\sqrt5+5}4=\dfrac{15\pm5\sqrt5}2$

$\implies\dfrac{x^2}{(x^2+1)^2}=\dfrac{\frac{3\pm\sqrt5}2}{\frac{15\pm5\sqrt5}2}=\dfrac{3\pm\sqrt5}{15\pm5\sqrt5}$

Multiply numerator and denominator by the denominator's conjugate:

$\dfrac{3\pm\sqrt5}{15\pm5\sqrt5}\cdot\dfrac{15\mp5\sqrt5}{15\mp5\sqrt5}=\dfrac{45\pm15\sqrt5\mp15\sqrt5-25}{15^2-(5\sqrt5)^2}=\dfrac{20}{100}=\dfrac15$

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3 years ago

State the property or properties illustrated by the statement. 5. 23 + = 23

Ksju [112]

Answer:

23 + 0

Step-by-step explanation:

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2 years ago