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2 years ago

Sally works in a cell phone store. She is paid a weekly salary of $80 plus $5.25 for

Mathematics

1 answer:

Viktor [21]2 years ago

7 0

Answer:

First, let's define some variables.

x = # of cell phones sold.

y = total weekly income.

y = $5.25x + $80

a is the correct answer choice.

Step-by-step explanation:

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The label on a package of bolts says each bolt has a diameter of 0.35 inch. To be in the package, the percent error of the diame

qaws [65]

Answer: No

Step-by-step explanation:-

Labeled diameter on the bolt = 0.35 inch

The observed diameter of the bolt= 0.33 inch

${\text {Percentage Error}}=|\frac{\text {labeled value}-{Observed value}}{\text {Observed value}}|\times 100\%$

${\text{Percentage Error}=|\frac{0.35-0.33}{0.33}|\times 100\%=6.06\%$

For the bolt to be in the package, the percent error must be less than 5%. As the percent error is 6.06% which is greater than 5%, the bolt cannot be in the package.

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3 years ago

Read 2 more answers

4x+3=x+9<br><br> What is the number?<br><br> X=?

Aneli [31]

Answer:

Step-by-step explanation:

4x+3=x+9

4x-x=9-3

3x=6

x=6/3

x=2

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2 years ago

Read 2 more answers

The slope of the line below is 1.5. Write the equation of the line in point-slope form, using the coordinates of the labeled poi

Nataly [62]

Point slope form equation: y - y1 = m(x - x1)
in this case

y - 3 = 1.5(x - 4)

Answer
Point slope form equation:
y - 3 = 1.5(x - 4)

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2 years ago

What is the name of the period that has the digits 751 in the number 751,486

Rama09 [41]

Seven hundred and fifty one thousand

I hope this helps

3 0

3 years ago

Find the radius of the circle with equation x²+y²+8x+8y+28=0

galina1969 [7]

<h2>Hello!</h2>

The answer is:

Center: (-4,-4)

Radius: 2 units.

To solve the problem, using the given formula of a circle, we need to find its standard equation form which is equal to:

$(x-h)^{2}+(y-k)^{2}=r^{2}$

Where:

"h" and "k" are the coordinates of the center of the circle and "r" is its radius.

So, we need to complete the square for both variable "x" and "y".

The given equation is:

$x^{2}+y^{2}+8x+8y+28=0$

So, solving we have:

$x^{2}+y^{2}+8x+8y=-28$

$(x^2+8x+(\frac{8}{2})^{2})+(y^2+8y+(\frac{8}{2})^{2})=-28+((\frac{8}{2})^{2})++(\frac{8}{2})^{2})\\\\(x^2+8x+16 )+(y^2+8y+16)=-28+16+16\\\\(x^2+4)+(y^2+4)=4$

$(x^2-(-4))+(y^2-(-4))=4$

Now, we have that:

$h=-4\\k=-4\\r=\sqrt{4}=2$

So,

Center: (-4,-4)

Radius: 2 units.

Have a nice day!

Note: I have attached a picture for better understanding.

3 0

2 years ago