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3 years ago

Long-grain rice costs $0.72/lb.

Mathematics

2 answers:

Verdich [7]3 years ago

4 0

It Would Be B. $1.90. Your Welcome :)

grandymaker [24]3 years ago

4 0

I am thinking c because you have to multiply what it costs by the amount you want

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Can someone help me with these problems? Please!

masya89 [10]

Step-by-step explanation:

2) Slope can be written as rise over run:

rise: add to the y-value
run: add to the x-value

$a) Slope=-1\ over\ 1\quad \rightarrow \quad (11 + 1, -8 - 1)\implies (12, -9)\\b) Slope=7\ over\ 2\quad \rightarrow \quad (2+2,2+7)\implies (4, 9)\\c) Slope=9\ over\ 4\quad \rightarrow \quad (-5+4,-2+9)\implies (-1, 7)$

3) Slope formula is: $\dfrac{y_2-y_1}{x_2-x_1}$

$slope=\dfrac{15-3}{5-1}=\dfrac{12}{4}=\boxed{3}$

4) Average rate of change is the slope of the given interval:

a) when x = 0, y = 0 and when x = 1, y = -3

$Slope=\dfrac{-3-0}{1-0}=\dfrac{-3}{1}=-3$

b) when x = -2, y = 0 and when x = -1, y = 3

$Slope=\dfrac{3-0}{-1+2}=\dfrac{3}{1}=3$

c) when x = 0, y = 0 and when x = 2, y = 0

$Slope=\dfrac{0-0}{2-0}=\dfrac{0}{2}=0$

3 0

3 years ago

Evaluate the expression. P(9, 3) · P(5, 4)

boyakko [2]

Answer:

$P(9,3) *P(5,4)$

And if we use the permutation formula given by:

$nPx = \frac{n!}{(n-x)!}$

And replacing we got:

$\frac{9!}{6!} \frac{5!}{4!}= 504*5 = 2520$

Step-by-step explanation:

For this problem we want to find the following expressionÑ

$P(9,3) *P(5,4)$

And if we use the permutation formula given by:

$nPx = \frac{n!}{(n-x)!}$

And replacing we got:

$\frac{9!}{6!} \frac{5!}{4!}= 504*5 = 2520$

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3 years ago

The sides of a square are 5 2/5 inches long what is the area of the square

nadya68 [22]

Your answer should be 157.5 Inches

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4 years ago

There are 9 red and 6 green marbles in a bag

bagirrra123 [75]

Answer:

there are 15 marbles in the bag

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

A table measures 3.6 feet long.<br><br> How long does the table measure in inches and in yards?

sattari [20]

Answer:

43.2 inches is 3.6ft

1.2 yards is 3.6ft

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3 years ago