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3 years ago

Read and wright the number in two other forms 314,207

Mathematics

1 answer:

Likurg_2 [28]3 years ago

3 0

Three hundred and fourteen thousand, two<span> hundred and seven. Or 300000 + 10000 + 4000 + 200 + 7</span>

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Can someone please do 1,2 and 3 please

jok3333 [9.3K]

1. x=−1 or x=−5

2. x=9 or x=−15

3.x=3 or x=−3

3 0

3 years ago

By what percent will a fraction decrease if its numerator is increased by 20% and its denominator is increased by 50%?

Angelina_Jolie [31]

Answer:

20%

Step-by-step explanation:

With those changes, the fraction is multiplied by ...

$\dfrac{1+.20}{1+.50}=1-\dfrac{.30}{1.50}=1-0.20$

That is, the value of the fraction is decreased by 20%.

5 0

3 years ago

Read 2 more answers

A piece of plywood was cut so it's length was 7 feet by 3 feet what is the perimeter of the wood

lozanna [386]

7 times 2 will be 14 and 3 times 2 is 6. So you need to add 14 plus 6 and you get 20 :) Hope you enjoy!

5 0

3 years ago

Read 2 more answers

Implicit differentiation of 1/x +1/y=5 y(4)= 4/19<br> y'(4)=?

Aneli [31]

$\frac{1}{x} +\frac{1}{y} = 5\\\\x^{-1}+y^{-1}=5\\$

Above, I changed the fraction form of x and y into exponential form so it is easier to see the differentiation. Now, we can differentiate:

$-1x^{-2}+-1y^{-2}\frac{dy}{dx}=5\\\\\frac{-1}{x^2}-\frac{1}{y^2}\frac{dy}{dx}=5\\\\-\frac{1}{y^2}\frac{dy}{dx}=5+\frac{1}{x^2}\\\\\frac{dy}{dx}=-5y^2-\frac{y^2}{x^2}$

Now that we have dy/dx, we can plug in the x, which is 4, and the y, which is 4/19. We know these values of x and y because your question stated y(4) = 4/19.

$\frac{dy}{dx}=-5(\frac{4}{19})^2-\frac{(\frac{4}{19})^2}{(4)^2}\\\\\frac{dy}{dx}=-5(\frac{16}{361})-\frac{(\frac{16}{361})}{16}\\\\\frac{dy}{dx}=\frac{-80}{361}-\frac{1}{361}\\\\\frac{dy}{dx}=\frac{-81}{361}$

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3 years ago

The enrollment at Temple Junior High School has a change of ─ 60 over a 3 year period. What is the average change per year?

GaryK [48]

Answer:

- 20

Step-by-step explanation:

Total Change in enrollment = - 60

Period of time at which change occurred = 3 years

Average change per year :

Total change in enrollment / period at which change occurred

= - 60 / 3

= - 20

Average change of - 20 enrollments per year

4 0

3 years ago