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4 years ago

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Boxes of six-inch slate flooring tile contain 40 tiles per box. the count is the number of cracked tiles in a box. you have noti

ced that most boxes contain no cracked tiles, but if there are cracked tiles in a box, then there are usually several.

1 answer:

zysi [14]4 years ago

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The dinner bill came to $72.48, and Julio tipped the waiter 15%. What is the total price of dinner?

balu736 [363]

Answer:

It is 83.35 Unless your rounding up then it is 84 dollars

Step-by-step explanation:

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3 years ago

PLEASE HELP <br><br>ONLY ANSWER IF YOU KNOW

densk [106]

A: Speed is Independent as it can be anything with no restrictions. Gas mileage is dependent as it relies on the value of speed for its value to be decided.

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C: no context

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3 years ago

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Grant takes an Uber from his hotel to a restaurant. The cost of the Uber is a $2.95 initial charge plus $2.25 per mile. Which eq

Papessa [141]

The answer is Y= 2.25x+2.95

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3 years ago

1. Find the derivative of f(x), at x = 10<br> f(x) = - 5x² + 13x

Serhud [2]

Answer:

-10x+13

Step-by-step explanation:

Im not 100% sure but i tried!

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3 years ago

If GF is a midsegment of CDE, find CD.<br><br> A. 3.4<br><br>B. 6.8 <br><br>C. 13.6 <br><br>D. 14

bogdanovich [222]

Answer:

C

Step-by-step explanation:

Triangle CGF and triangle CED are similar. Hence, the ratio of their corresponding sides are equal. Thus we can write:

$\frac{5x+4}{2x+3}=\frac{CD}{3x+0.8}$

<em>We can now cross multiply and solve for CD:</em>

$\frac{5x+4}{2x+3}=\frac{CD}{3x+0.8}\\(5x+4)(3x+0.8)=(2x+3)(CD)\\15x^2+4x+12x+3.2=(2x+3)(CD)\\15x^2+16x+3.2=(2x+3)(CD)\\CD=\frac{15x^2+16x+3.2}{2x+3}$

Since GF is a midsegment of CDE, CD is double of CF. So we can write:

$CD=2CF\\\frac{15x^2+16x+3.2}{2x+3}=2(3x+0.8)\\\frac{15x^2+16x+3.2}{2x+3}=6x+1.6\\15x^2+16x+3.2=(6x+1.6)(2x+3)\\15x^2+16x+3.2=12x^2+18x+3.2x+4.8\\15x^2+16x+3.2=12x^2+21.2x+4.8\\3x^2-5.2x-1.6=0$

<em>By using quadratic formula $\frac{-b+-\sqrt{b^2-4ac} }{2a}$ and with a=3, b= -5.2, and c= -1.6, we find the value of x to be:</em>

$\frac{5.2+-\sqrt{(-5.2)^2-4(3)(-1.6)} }{2(3)}=2$

<em>Since the expression for CD is $\frac{15x^2+16x+3.2}{2x+3}$ , we plug in $x=2$ into this expression to find value of CD:</em>

$\frac{15(2)^2+16(2)+3.2}{2(2)+3}=13.6$

The correct answer is C

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3 years ago

Read 2 more answers