Frank's Football Gear is having a sale on helmets. The sales price, not including tax is $125.50. If the sale is 30% off all helmets, what is the regular price of the helmet to the nearest cent?

Answers

Answer 1

Answer: The regular price for the football helmet would be $179.29.

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What is the difference if the negative is in parenthesis or if it is not in parenthesis

Answers

For number 19, when you see the parenthesis, you must look at everything that’s inside and then square it, as you have done correctly. Without the parenthesis like in number 18, you are only looking at squaring the number 3 as it is the only number directly attached to the square. 3 squared is 9 and then take into account the negative. It would be like multiplying by a negative 1. The final answer would be -9 in this case. Hope this helps! :)

Hey!
For number 18, it is actually -9 because the negative is not included in the parenthesis.
That means that the - and 3 are not connected. So the square is only for the 3 in this case.
FOr 19, it is 9 because there are parenthesis.
In this case the - and 3 are connected and the square is for the -3. If it is in parenthesis then the number is contained and the square sign will Make is -3 * -3 instead of 3*3

What does a positive slope look like ?

Answers

Answer:

A positive slope is a line going up from the bottom left toward the top right corner of the graph.

Step-by-step explanation:

Answer:

It would look like a slanted line going up

Kinda would look like this on a graph:

Step-by-step explanation:

X+y = 180 degrees of an angle. Write that into an equation of slope intercept form.

Answers

Slope intercept form is : y = mx + b

x + y = 180
-x -x

y = -x + 180
y = -1x + 180

The slope intercept form is : y = -x + 180

What is another way to write 42 + 63

Answers

you could write this by going 63+42 or add 63 and 42
hope that's what you are looking for ;-)

43 + 62 = 105
42 +63 = 105

Evaluate B2 for B = 9.

18

81

92

Answers

The answer is 18 because if u put the 2 and put the 9 right next to it and you multiply it you get 18

Answer:

The answer is 81 because 9x9=81

Step-by-step explanation:

What is an equation of the line that is perpendicular to y-3 =-4(x+2)

Answers

Answer:

$y - 3 = (1)/(4)(x+2)$ or choose any line with slope 1/4

Step-by-step explanation:

The slope of this line is -4. The slope of the line perpendicular to this line will be the negative reciprocal or 1/4.

Write the equation using the slope m=1/4 and the point slope form.

$y-y_1=m(x-x_1)\ny-3=(1)/(4)(x+2)$

This is the equation of the line that is perpendicular and passes through the same point (-2,3) as the equation listed.

Answer:

$y=(1)/(4) x+c$ where $c$ can be any number.

Step-by-step explanation:

First we need to clear for y:

$y-3 =-4(x+2)\ny=-4(x+2)+3\ny=-4x-8+3\ny=-4x-5$

and now we have an equation of the form:

$y=mx+b$

where m is the slope and b is the y-intercept.

in this case $m=-4$ and $b=-5$

to find and equation perpendicular to this line, the following must be true: $m*m_(1)=-1$

where m is the slope of the original line that i just mentioned, and $m_(1)$ is the slope of the new line. Substituting $m=-4$

$-4*m_(1)=-1$

clearing for $m_(1)$

$m_(1)=(-1)/(-4) \nm_(1)=(1)/(4)$

thus, the new perpendicular line must have the form:

$y=m_(1)x+c\ny=(1)/(4)x+c$

where the y-intecept $c$ can be any number, some examples are:

$y=(1)/(4)x+3\ny=(1)/(4)x-8$

and so on, the important thing to be a perpendicular line is that the slopes are related to the equation $m*m_(1)=-1$ .

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