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3 years ago

11

The cone shown has a diameter of 18 meters and a slant height of 15 meters. Which choice is the closest to the lateral surface a

rea? Use 3.14 approximate pi.
A. 170 square meters
B. 339 square meters
C. 424 square meters
D. 1,356 square meters

1 answer:

givi [52]3 years ago

8 0

I think it is C, 424

hope that helps

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Pratap Puri rowed 14 miles down a river in 2 hours, but the return trip took him 3 and one half hours. Find the rate Pratap can

SOVA2 [1]

speed of current is 1.5 mi/hr

Answer:

let the rate in still water be x and rate of the current be y.

speed down the river is:

speed=distance/time

speed=14/2=7 mi/h

speed up the river is:

speed=(14)/(3.5)=4 mi/hr

thus total speed downstream and upstream will be:

x+y=7...i

x-y=4.......ii

adding the above equations i and ii we get:

2x=11

x=5.5 mi/hr

thus

y=5-5.5=1.5 mi/r

thus the speed in still waters is 5.5 mi/hr

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2 years ago

Janice is 7 years older than Tam. Complete the table, and then graph this situation.

qwelly [4]

Answer:

The table in the exercise can be completed with the next results:

x y
2 <u>9</u>
4 <u>11</u>
6 <u>13</u>
8 <u>15</u>

Step-by-step explanation:

As in the exercise Janice is 7 years older than Tam, to obtain the result in the table, you must add 7 to each age in the column x, with this we can make the next formula:

y = x + 7

Remember that x is Tam's age, and y is Janice's age, so, you must replace the x variable in each case to obtain the result to y:

When x is 2:

y = 2 + 7
<u>y = 9</u>

When x is 4:

y = 4 + 7
<u>y = 11</u>

When x is 6:

y = 6 + 7
<u>y = 13</u>

When x is 8:

y = 8 + 7
<u>y = 15</u>

At last, <u>to obtain the graph you can use the formula made: y = x + 7</u>, and you'll obtain a graph like the attached picture, <em>where each time x obtain a unit, the y variable obtain a unit too maintaining the diference of 7</em>.

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2 years ago

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Alex777 [14]

Answer:

$3x^7+4|x| = 3x^7+4x [if~x\geq 0]\\3x^7+4|x|=3x^7-4x [if~x$

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2 years ago

An item is regularly priced at 85$. It is on sale for 80% off the regular price. How much is discounted from the regular price?

laila [671]

$68 is discounted from the regular price.

To find this, you first divide 80% by 100 to get 0.8 (the decimal form of the percentage). Then, simply multiply 0.8 by 85 (or vise verse) to get $68. Since the question is asking for how much is discounted from the regular price, the final answer would be $68.

I hope this helps!

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2 years ago

Point H is the midpoint of side FK. Triangles F G H and K J H are connected at point H. The lengths of sides F H and H K are con

earnstyle [38]

Answer:

the answer would be x=6

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Step-by-step explanation:

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2 years ago

Read 2 more answers