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3 years ago

(4 added to the difference of d minus 3)

Mathematics

1 answer:

Leno4ka [110]3 years ago

8 0

Answer:

4+(-d-3)

Step-by-step explanation:

Hope I helped you

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A triangle ABC has A(1,-4) B(3,-1) C(3,-8).Find the length of the sides AB and AC

mr_godi [17]

Answer:

Step-by-step explanation:

AB= $\sqrt{(1^{2} -3^{2})+((-4)^{2} -(-1)^{2} ) }$

= $\sqrt{7}$

AC= $\sqrt{(3^{2} -1^{2} )+((-8)^{2}- (-4)^{2} )} \\$

= $\sqrt{56}$

4 0

3 years ago

About 5% of the population has a particular genetic mutation. 900 people are randomly selected.

Gelneren [198K]

I think u need to do 5%*900 which is 5 percent of 900. the answer might be 45 I'm not 100 percebt sure tho

8 0

4 years ago

Steve is three more than 5 times as old as his cousin. If the sum of their ages is 21, how old is Kia's cousin? Solve and write

DerKrebs [107]

Answer:

Step-by-step explanation:

Cause it is right

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3 years ago

Differentiate the following functions (x^3+1)(x-2)÷x^2

Masja [62]

Given:

The given function is:

$\dfrac{(x^3+1)(x-2)}{x^2}$

To find:

The differentiation of the given function.

Solution:

Consider the given function,

$y=\dfrac{(x^3+1)(x-2)}{x^2}$

It can be written as:

$y=\dfrac{(x^3)(x)+(x^3)(-2)+(1)(x)+(1)(-2)}{x^2}$

$y=\dfrac{x^4-2x^3+x-2}{x^2}$

$y=\dfrac{x^4}{x^2}-\dfrac{2x^3}{x^2}+\dfrac{x}{x^2}-\dfrac{2}{x^2}$

$y=x^2-2x+\dfrac{1}{x}-\dfrac{2}{x^2}$

Differentiate with respect to x.

$y'=\dfrac{d}{dx}(x^2)-\dfrac{d}{dx}(2x)+\dfrac{d}{dx}(x^{-1})-\dfrac{d}{dx}\2(x^{-2})$

$y'=2x-2(1)+(-x^{-2})-2(-2x^{-3})$

$y'=2x-2-\dfrac{1}{x^2}+\dfrac{4}{x^3}$

Therefore, the differentiation of the given function is $2x-2-\dfrac{1}{x^2}+\dfrac{4}{x^3}$ .

8 0

3 years ago

Johnny ran 3/4 of an hour and Angie ran 2/3 of an hour how much more did Johnny run

yawa3891 [41]

3/4 = 9/12
2/3 = 8/12

9/12 - 8/12 = 1/12

So Johnny ran for 1/12 of an hour longer than Angie.

3 0

3 years ago

Read 2 more answers