All categories

1 year ago

-x + 4y when x = -4/5 and y = 1/3

Mathematics

1 answer:

Usimov [2.4K]1 year ago

8 0

we have the expression

$-x+4y$

Evaluate for x=-4/5 and y=1/3

substitute the values of x and y in the given expression

$\begin{gathered} -(-\frac{4}{5})+4(\frac{1}{3}) \\ \frac{4}{5}+\frac{4}{3} \\ \frac{3\cdot4+5\cdot4}{15} \\ \frac{32}{15} \end{gathered}$

the answer is 32/15

You might be interested in

Brian pays £465.98 a year on his car insurance.

denpristay [2]

Answer:

£ 449.20

Step-by-step explanation:

We have to reduce 465.98 by 3.6%

Firstly, lets convert the percentage to decimal by dividing by 100. So we have:

3.6/100 = 0.036

Lets find 3.6% of 465.98

That is:

0.036 * 465.98 = 16.77528

This is the "LESSENED" amount. So the final amount would be:

465.98 - 16.77528 = 449.20472

Rounding to 2 decimal places, £ 449.20

8 0

3 years ago

Determine the equation of the line passing through the points (4,-1) and (-2,-4)

jenyasd209 [6]

Answer:

y = 1/2x - 3

Step-by-step explanation:

the slope:

$m=\frac{-4-(-1)}{-2-4} =\frac{-4+1}{-6} =\frac{-3}{-6} =\frac{3}{6} =\frac{1}{2}$

the equation:

with the point (4, -1)

$y-(-1)=\frac{1}{2} (x-4)$

$y+1=\frac{1}{2}x-2$

$y=\frac{1}{2} x-2-1$

$y=\frac{1}{2} x-3$

I hope this help you

8 0

3 years ago

Multiply: (x+4)(x^2+2x+3) Simplify and write your answer in Standard Form.

Oxana [17]

Answer:

x^3+6x^2+11x+12

Step-by-step explanation:

(x+4)(x^2+2x+3)

=x(x^2+2x+3)+4(x^2+2x+3) [by multiplying with bith sides]

=x^3+2x^2+3x+4x^2+8x+12

=x^3+2x^2+4x^2+3x+8x+12

=x^3+6x^2+11x+12

(please mark me brainliest)

6 0

2 years ago

HELP WHAT EQUATION MATCHES THE GRAPH? PLEASE HELP ME

Alexandra [31]

Step-by-step explanation:

I think no. c is correct

if it helps you then plzz mark me brainliest

8 0

3 years ago

in 1998 your house cost $82,400. in 2000 your house was valued at $102,650. how much did the value of your home increase?

kow [346]

What you do is - 82400 from 102650 and you should get your answer

3 0

3 years ago