3 years ago

Evaluate rs+14s when r=6 and s=1/4

Mathematics

1 answer:

zlopas [31]3 years ago

8 0

First Plug it in
6(1/4)+14(1/4)
Then solve
1.5+3.5
5

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Pleasee help ASAP!! No links pleaseee!!!

Ilya [14]

Given:

The vertices of the rectangle ABCD are A(0,1), B(2,4), C(6,0), D(4,-3).

To find:

The area of the rectangle.

Solution:

Distance formula:

$D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Using the distance formula, we get

$AB=\sqrt{(2-0)^2+(4-1)^2}$

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

$AB=\sqrt{4+9}$

$AB=\sqrt{13}$

Similarly,

$BC=\sqrt{(6-2)^2+(0-4)^2}$

$BC=\sqrt{(4)^2+(-4)^2}$

$BC=\sqrt{16+16}$

$BC=\sqrt{32}$

$BC=4\sqrt{2}$

Now, the length of the rectangle is $AB=\sqrt{13}$ and the width of the rectangle is $BC=4\sqrt{2}$ . So, the area of the rectangle is:

$A=length \times width$

$A=\sqrt{13}\times 4\sqrt{2}$

$A=4\sqrt{26}$

$A\approx 20$

Therefore, the area of the rectangle is 20 square units.

3 0

3 years ago

Write an algebraic expression for " the minimum value of 2x + 1 is 13"

bezimeni [28]

2x+1=13 x=6 so an ok answer would be: 2x+10=40 x=15

6 0

3 years ago

If gas is $2.45 and you pay $ 12.00 how many gallons of gas do you get ?

attashe74 [19]

Gas is 2.45 per gallon. So if we pay $12 we get 12÷2.45 gallons:

12 ÷ 2.45 ≈ 4.90 gallons.

You get roughly 4.90 gallons.

6 0

3 years ago

Read 2 more answers

PLEASE HELP, algebra 1

maxonik [38]

The equation for the quadratic variation is:
y = kx^2
Plug in x and y values to solve for 'k'
32 = k(2^2)
32 = 4k
k = 32/4 = 8

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3 years ago

What is the difference between 3/7, and 1/14

Fofino [41]

5/14 is the difference between 3/7 and 1/14.

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3 years ago