All categories

3 years ago

PLEASEE HELPP!!! DUE TODAYY!!!

Mathematics

1 answer:

Alika [10]3 years ago

4 0

Answer:

b 5/12

Step-by-step explanation:

You might be interested in

Write the equation in slope-intercept form with the point (2,7.5) with an x intercept of −1. And plz tell me how you got it Than

ladessa [460]

First you must find slope using two points (2,7.5) and (-1,0).
0-7.5 = -7.5
-1-2 = -3
-7.5/-3 = 2.5
y - 0 = 2.5 ( x + 1)
y - 0 = 2.5x + 2.5
y = 2.5x + 2.5
$y = 2.5x + 2.5$

5 0

3 years ago

What is the percent of change from 56 to 22? round to the nearest percent

V125BC [204]

$\textrm{percentage change} = \dfrac{\textrm{new} - \textrm{old}}{\textrm{old}} \times 100 \%$

$\dfrac{22 - 56}{56} \times 100\% \approx -60.7\%$

Answer: -61%

3 0

3 years ago

What is the distance formula?

igomit [66]

Answer:

Distance Formula is

Step-by-step explanation:

d=√((x_2-x_1)²+(y_2-y_1)²)

3 0

3 years ago

Read 2 more answers

HELP ME PLEASE IM BEGGING

agasfer [191]

95 is the area
Hope this helps :p

8 0

3 years ago

Read 2 more answers

An ice cream store has the pricing shown below. You want to determine the best value. The height of the cone is 4.5 in and the d

nignag [31]

Solution:

Step 1:

We will calculate the volume of ice cream in the single scoop

The volume of the ice cream will be

$\begin{gathered} V=\frac{1}{3}\pi r^2h+\frac{2}{3}\pi r^3 \\ r=\frac{2in}{2}=1in(cone) \\ h=4.5in \\ r=\frac{3in}{2}=1.5in(radius\text{ of the hemisphere\rparen} \end{gathered}$

By substituting the values, we will have

$\begin{gathered} V=\frac{1}{3}\pi r^{2}h+\frac{2}{3}\pi r^{3} \\ V=\frac{1}{3}\times\frac{22}{7}\times1^2\times4.5+\frac{2}{3}\times\frac{22}{7}\times1.5^3 \\ V=\frac{33}{7}+\frac{99}{14} \\ V=\frac{165}{14} \\ V=11.79in^3 \end{gathered}$

Step 2:

We will use the formula below to calculate the volume of the two scoops of ic cream

$\begin{gathered} V=\frac{1}{3}\pi r^2h+\frac{4}{3}\pi r^3 \\ V=\frac{1}{3}\times\frac{22}{7}\times1^2\times4.5in+\frac{4}{3}\times\frac{22}{7}\times1.5^3 \\ V=\frac{33}{7}+\frac{99}{7} \\ V=\frac{132}{7} \\ V=18.86in^3 \end{gathered}$

Step 3:

We will use the formula below to calculate the volume of the three scoops of ic cream

$\begin{gathered} V=\frac{1}{3}\pi r^2h+\frac{6}{3}\pi r^3 \\ V=\frac{1}{3}\times\frac{22}{7}\times1^2\times4.5+2\times\frac{22}{7}\times1.5^3 \\ V=\frac{33}{7}+\frac{297}{14} \\ V=\frac{363}{14} \\ V=25.93in^3 \end{gathered}$

For the first ice cream with one scoop

$\begin{gathered} 1in^3=\frac{3.50}{11.79} \\ 1in^3=\text{ \$}0.30 \end{gathered}$

For the second ice cream with two scoops

$\begin{gathered} 1in^3=\frac{4.50}{18.86} \\ 1in^3=\text{ \$}0.24 \end{gathered}$

For the third ice cream with three scoops

$\begin{gathered} 1in^3=\frac{5.50}{25.93} \\ 1in^3=\text{ \$}0.21 \end{gathered}$

Hence,

The final answer is

The triple sold at $5.50 has the best value because it has the lowest price of $0.21 per cubic inch of the ice cream

3 0

1 year ago