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4 years ago

Find the simplify form of the expression. Give your answer in scientific notation:

Mathematics

1 answer:

coldgirl [10]4 years ago

3 0

You multiply the 2 values together to get 1.5*10^12

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At the grocery store, sliced turkey deli meat is on sale for $11 for 2 pounds. a. What is the cost per pound of sliced turkey de

alexgriva [62]

Answer:

- $5.5 per pound

- $y = 5.5x$

Step-by-step explanation:

Given

$11 for 2 pounds

Solving (a): Cost per pound

This is calculated by dividing $11 by 2 pounds

$Cost\ per\ pound = \frac{\$11}{2\ lb}$

$Cost\ per\ pound = \$5.5/\ lb$

Hence, the cost per pound is $5.5 per pound

Solving (b): Represent as an equation.

If 1 pound costs $5.5 (as shown in (a))

Then

x pounds costs $5.5 * x

$Cost = 5.5 * x$

$Cost = 5.5x$

This cost is represented with y

$y = 5.5x$

6 0

3 years ago

The perimeter of a quadrilateral (four-sided polygon) is 41 inches. The longest side is twice as long as the shortest side. The

zhenek [66]

Answer:

The length of all four sides of a quadrilateral are 7 inches, 14 inches, 10 inches, 10 inches

Step-by-step explanation:

Let the shortest side be $x$

As per given information longest side = $2x$

and other 2 sides are equal in length but 3 more times that shortest side = $3+x$

Perimeter of Quadrilateral = 41 inches given

But perimeter of quadrilateral = sum of all sides

$x+2x+x+3+x+3=41\\5x+6 =41\\5x= 41-6\\5x=35\\x = \frac{35}{5}=7$

Shortest side = $7\ in$

Longest side = $2x= 2\times 7= 14 \ in$

Other 2 sides = $3+x=3+7 = 10 \ in$

6 0

4 years ago

What is the result of subtracting the second equation from the first? \begin{aligned} -7x-y &= 0 \\\\ 7x+8y &= -6 \end{a

Kitty [74]

Answer:

$-14x-9y=6$

Step-by-step explanation:

We are given with two equations

first equation is $-7x-y=0$

second equation is

$7x+8y=-6$

we find the result of subtracting two equation

subtract the second equation from the first, so

first equation - second equation, multiply second equation by -1 and then add it with first equation

$-7x-y=0$

$-7x-8y=+6$

Now add both equations, we get

$-14x-9y=6$

3 0

3 years ago

What is the vertex of the graph Y = 2(x+6)^2-2

Fynjy0 [20]

Use the vertex form, y = a ( x − h ) 2 + k , to determine the values of a , h , and k . a = 2 h = − 6 k = − 2 Find the vertex ( h , k ) . ( − 6 , − 2 )

6 0

4 years ago

Can someone please explain to me how to factor using gcf?

wlad13 [49]

Look for the biggest number that they can all be divided by, and if there is a variable see if they can all have at least one of that variable taken away, so for example, in the numbers 20, 50, and 65 the greatest common factor is 5, there is no variable so you could just say 5 (4 + 10 + 13), however let’s say you came across 20y + 50y^4 + 65y^2, they all have at least one variable to take from so in this case you would factor using 5y, and it would look like this 5y (4 + 50y^3 + 65y). I hope that made sense, please tell me if you need further explanation and I’ll try my best to put it in an easier or more descriptive way.

3 0

4 years ago