3 years ago

Write an expression in terms of x that represents the distance between (2,10) and (x,10) for x>2.

Mathematics

1 answer:

ehidna [41]3 years ago

7 0

Answer:

Step-by-step explanation:

$d=\sqrt{(x-2)^2+(10-10)^2} =\sqrt{(x-2)^2}=x-2$

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Kyle is buying a $220 bicycle. If the bicycle is on sale for 35% off, how much will he save?

Mrac [35]

Answer:

Step-by-step explanation:

Discount = 35% of 220

$= \dfrac{35}{100}*220\\\\= 7 * 11$

= $ 77

Amount saved =$ 77

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2 years ago

What is 3/4 to the power of 4 as a fraction?

STALIN [3.7K]

Answer:

81 / 256

Step-by-step explanation:

just multiply 3/4 4 times

(Just because I'm a high schooler doesn't mean that I don't know this I take AP and IB classes)

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3 years ago

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The amount in kilograms, a, of a radioactive element that remains after t hours can be modeled by the equation a= 0.65(0.92)to t

elena-14-01-66 [18.8K]

Answer:

The rate of decrease is 8%

Step-by-step explanation:

we know that

The general equation for the radioactive decay can be written as:

$a=a_0(1-r)^t$

where

a is the amount in kilograms after time t.

a_0 is the original amount of the substance or y-intercept of the function

r is the decay rate, written in decimals.

t is the time

In this problem we have

$a=0.65(0.92)^t$

$a_0=0.65\\(1-r)=0.92$

solve for r

$r=1-0.92=0.08$

Convert to percentage

$0.08(100)=8\%$

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3 years ago

Jane has 6 red marbles. 4 green marbles, and 2 black marbles in a bag. What is the probability of ramdomly pulling out a green m

fomenos

the total number of marbles in the bag is 12 . so the probability of getting a green marble at random is 4/12 which resluts to 1/3

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3 years ago

Can someone please answer. There is one question. There is a picture. Thank you!

torisob [31]

The answer is one in six because there's six sides and only one four on the die

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3 years ago

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