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3 years ago

14

A pizza cutter has a diameter of 2.5 inches. To cut a pizza in half the cutter makes two complete revolutions. What is the diame

ter of the pizza?

1 answer:

bagirrra123 [75]3 years ago

6 0

5 inches i hope this helps!!

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Multiply. (6)(−3)(−5) <br><br><br><br> 90<br><br> −2<br><br> −90

otez555 [7]

Answer:

90

Step-by-step explanation:

6 × (-3) × (-5)

= 6 × 15 ( Multiplying 2 negative numbers gives the product a positive number)

= 90

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2 years ago

Estimate each product.Then write whether the estimate is greater than or less than the actual product.There are 62 rows of 9 cha

Westkost [7]

That is 62x9 which is 9x2=18 and 9x60=540 so you then add 540+18=558 chairs

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2 years ago

Find the surface area of the prism below. Please see the attachment and a. 108cm ^2 is incorrect. Thanks!

creativ13 [48]

Answer: OPTION B

Step-by-step explanation:

To solve this problem you must add the areas of each rectangle that form the prism;

The area of a rectangle can be calculated with the formula:

$SA=length*width$

There are three pairs of equal rectangles, then you can find the surface area of 3 rectangles and multiply each one by 2, then you obtain that the surface area of the prism is:

$SA_{prism}=2(6cm*2cm)+2(3cm*6cm)+2(3cm*2cm)=72cm^{2}$

5 0

2 years ago

A carpenter wants to build a rectangular box with square sides in which to put round things. the material for the bottom costs $

alexira [117]

Answer: $1.627\times 1.627\times 1.88\ ft^3$

Step-by-step explanation:

Given

Suppose side face have a dimension of l\times l

and width of h

volume $V=l^2\cdot h$

$h=\frac{V}{l^2}$

volume $V=5 ft^3$

Area of side wall is $A_s=l^2$

Area of top Wall $A_t=l\times h$

Area of bottom $A_b=l\times h$

Cost of bottom wall $c_b=20\times l\times h=20lh$

Cost of top wall $c_t=50\times l\times h=50lh$

Cost of side walls $c_s=4\times l^2\times 10=40l^2$

total cost $C=c_s+c_t+c_b=20lh+50lh+40l^2$

$C=70lh+40l^2$

$C=70\times l\times \frac{5}{l^2}+40l^2$

differentiate C w.r.t l to get minima or maxima

$\frac{\mathrm{d} C}{\mathrm{d} l}=0$

$-\frac{350}{l}+80l^2=0$

$l^3=\frac{350}{80}$

$l=1.627 ft$

$h=\frac{5}{2.648}$

$h=1.88 ft$

Dimension of Box is $1.627\times 1.627\times 1.88\ ft^3$

5 0

2 years ago

Please help asap Two vertices of a polygon are (7, −18) and (7, 18) . What is the length of this side of the polygon?

Pavlova-9 [17]

You just need to find distance between two points
d= $\sqrt{(y2-y1)^2+(x2-x1)^2}$
d=6

6 0

2 years ago