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4 years ago

Can someone help fast.

Mathematics

1 answer:

Svetlanka [38]4 years ago

8 0

There should not be a -5 outside of the parenthesis in the second line

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At a particular restaurant, each chicken wing has 80 calories and each slider has 300 calories. A combination meal with sliders

RoseWind [281]

Answer:

4 Sliders 2 chicken wings

Step-by-step explanation:
4x300=1200 2x80=160

8 0

3 years ago

A student was asked to find the slope of the line through the points (4,8) and (-3,5). His answer, <img src="https://tex.z-dn.ne

evablogger [386]

Answer:

$m=\frac{-3}{-7}$

Step-by-step explanation:

Given the following question:

Point A = (4, 8) = (x1, y1)
Point B = (-3, 5) = (x2, y2)

In order to find the slope any two points given we use the formula to find slope or rise/run.

$m=\frac{y2-y1}{x2-x1}$
$m=\frac{5-8}{-3-4} =\frac{-3}{-7}$
$m=\frac{-3}{-7}$

The reason why the students answer is incorrect because he substituted incorrectly. More specifically the run part of the formula for slope. The formula for slope goes x2 - x1 which means it should be -3 - 4, not -4 - 3, which will give you the answer -7.

Hope this helps.

4 0

3 years ago

If a box of granola bars cost 2.25 and contains 8 bars, what is the cost of each bar? Round to the nearest cent

valentina_108 [34]

Just divide 2.25 by 8 and thatll be
0.28

5 0

3 years ago

Read 2 more answers

Solve 5/8 x - 2/3 y = -3 3/4 x + 1/2 y = -4

sasho [114]

Answer:

I am not sure that this is a solvable equation.

6 0

4 years ago

A radio station has a broadcast area in the shape of a circle with equation x^2 + y^2 = 5, 625, where the constant represents sq

sergij07 [2.7K]

SOLUTION:

Given: Equation of a circle describing a radio station broadcast area.

$\begin{gathered} x^2+y^2=5625 \\ \text{Comparing with the general equation of a circle:} \\ (x-a)^2+(y-b)^2=r^2 \\ \text{Where (a,b) represents the centre of the circle} \\ r\text{ represents the radius of the circle} \\ \text{Therefore,} \\ The\text{ centre is the origin (0,0)} \\ \text{radius,} \\ r^2=\text{ 5625} \\ \text{Square}-\text{root both sides} \\ \sqrt[]{r^2}=\text{ }\sqrt[]{5625} \\ r=\text{ 75 miles} \end{gathered}$

To find:

A) Intercepts; x-intercept, y-intercept

$\begin{gathered} x-\text{intercept} \\ \text{the value of x when y=0} \\ x^2_{}+y^2=5625 \\ x^2=5625 \\ \text{square}-\text{root both sides} \\ \sqrt[]{x^2}=\text{ }\sqrt[]{5625} \\ x=\text{ 75 miles} \end{gathered}$ $\begin{gathered} y-\text{intercept} \\ \text{the value of y when x=0} \\ x^2_{}+y^2=5625 \\ y^2=5625 \\ \text{square}-\text{root both sides} \\ \sqrt[]{y^2}=\text{ }\sqrt[]{5625} \\ y=\text{ 75 miles} \end{gathered}$

B) radius

$\begin{gathered} r^2=\text{ 5625} \\ \text{Square}-\text{root both sides} \\ \sqrt[]{r^2}=\text{ }\sqrt[]{5625} \\ r=\text{ 75 miles} \end{gathered}$

C) Area of region

The formula for area of a circle is given as:

$\begin{gathered} A=\text{ }\pi\times r^2 \\ A=\text{ }\frac{22}{7}\times75^2 \\ A=\frac{22}{7}\times5625 \\ A=\text{ 17678.57 sq miles (2 d.p)} \end{gathered}$

7 0

1 year ago