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3 years ago

This is due today, please help!!! I will give brainliest.

Mathematics

1 answer:

WINSTONCH [101]3 years ago

6 0

Answer:

Step 1, all the exponents are increased by 4

Step-by-step explanation:

The first incorrect step occurred in Step 1, where all the exponents were increased by 4.

This is mathematically incorrect due to exponential rules. When distributing exponents inside parentheses, we have to multiply the existing exponents inside the parentheses by the exponent outside the parentheses.

For example, (x²)³ is not x²⁺³, but rather, x⁽²⁾⁽³⁾.

We multiply the exponents instead of adding them together.

Therefore, the correct Step 1 should multiply all the variables' exponents by 4.

Steps 2 and 3 are correct since we do add the exponents when multiplying exponents with the same base, and we do subtract exponents with the same base when dividing.

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When water leaks through a hole, friction and contraction of the stream near the hole reduce the volume of water leaving the tan

Romashka [77]

Answer:

The explanation is given in the attachment.

Step-by-step explanation:

The step by step explanation and careful derivation is as shown in the attachment.

3 0

4 years ago

Edward's school is 13/2 miles away from his home . He goes by car to school and back. The car consumed 4 gallons of gas taking h

MatroZZZ [7]

Answer:

16.25

Step-by-step explanation:

Well, the school is 13/2 miles away.

13/2 = 6.5

Since Edward goes by car there and back, he travels 13 miles a day.

6.5 x 2 = 13

He went for 5 days.

5 x 13 = 65

The car consumed 4 gallons of gas by driving those 65 miles.

65 / 4 = 16.25

Therefore, Edward's car gets 16.25 miles per gallon!

5 0

4 years ago

Find the co-ordinates of the point of trisection of the line joining the points A(1,8) and B(4,2).

Licemer1 [7]

<u>coordinates of the point are (2,6) and (3,4)</u>

Answer:

Solution given:

let the given point be A(1,8) and B(4,2).

P and Q are the two points on AB such that

AP=PQ=QB=k

now

comparing AP and PB

AP=k

PB=2k

ratio of AP and PB = $\frac{1k}{2k}$ = ratio 1:2

now

finding p

for this

$(m_1,m_2)=(1,2)$

For AB

$(x_1,y_1)=(1,8)$

$(x_2,y_2)=(4,2)$

now by using division formula

$(x,y)=(\frac{m_1x_2+m_2x_1}{m_1+m2},\frac{m_1y_2+m_2y_1}{m_1+m2})$

$=(\frac{1*4+2*1}{1+2},\frac{1*2+2*8}{1+2})=(2,6)$

similarly

Q divides AB

Ratio of AQ and QB = $\frac{2k}{1k}$ = ratio 2:1

$(x_1,y_1)=(1,8)$

$(x_2,y_2)=(4,2)$

$(m_1,m_2)=(2,1)$

by using division formula

$(a,b)=(\frac{m_1x_2+m_2x_1}{m_1+m2},\frac{m_1y_2+m_2y_1}{m_1+m2})$

$=(\frac{2*4+1*1}{2+1},\frac{2*2+1*8}{2+1})=(3,4)$

4 0

3 years ago

Elly buys 75 shares of stock in a mutual fund for a total investment of $450. She sells 50 shares of her stock for total proceed

LUCKY_DIMON [66]

We have been given that Elly buys 75 shares of stock in a mutual fund for a total investment of $450.

It means the cost of 1 share is given by

$\frac{450}{75}\\
\\
=\$6$

Now, we have been given that she sells 50 shares of her stock for total proceeds of $400.

It means the cost of 1 share is given by

$\frac{400}{50} \\
\\
\$8$

She purchased per share at $6 and sold per share at $8.

It means that she made a profit of $8-6=\$2$ per share.

Therefore, d is the correct option.

(d) profit of $2 per share

6 0

4 years ago

Read 2 more answers

What is the answer??

Finger [1]

Answer:

multiply both sides of the equation by 3

Step-by-step explanation:

When your trying to solve for a variable, do steps where you are isolating that variable.

In the equation given, to isolate b, get rid of the division first and we can do that through multiplication.

6 0

3 years ago