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4 years ago

Desert cover about 1/7 of all land on earth.about what percent of earth's land is made up of desert

Mathematics

1 answer:

mina [271]4 years ago

7 0

1/7 = 0.143

So, about 14.3%

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First and second place in a contest use a ratio to share a cash prize.When first place pays $100 and second pays $60.how much do

svlad2 [7]

Let's make a proportion: 60/100 = 36/x. Cross multiply and find x. In this case, x would equal 60.

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4 years ago

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Recall the equation for a circle with center (h,k) and radius r. At what point in the first quadrant does the line with equation

IgorC [24]

Answer:

At intersection

x=2.68

y=5.34

Step-by-step explanation:

Equation of circle with center (h,k) and radius r is

$(x-h)^{2}+(y-k)^{2}=r^2\\\\With\,\, center\,\,(0,4)\,\, and\,\, r=3\\\\(x-0)^{2}+(y-4)^{2}=3^2\\\\x^2+(y-4)^{2}=9---(1)\\\\Equation\,\,of intersecting\,\,line\\y=0.5x+4---(2)$

To find point of intersection:

From (2)

$x=\frac{y-4}{0.5}=2(y-4)\\\\x^2=4(y-4)^{2}\\\\Put\,\,in\,\,(1)\\\\4(y-4)^{2}+(y-4)^{2}=9\\\\5(y-4)^{2}=9\\\\y-4=\frac{3}{\sqrt{5}}\\\\y=1.34+4\\\\y=5.34\\\\x=2(5.34-4)\\\\x=2(0.34)\\\\x=2.68$

At intersection

x=2.68

y=5.34

This point of intersection can be checked in graph attached below

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3 years ago

What is the sum of angles of a pentagon?

Oksana_A [137]

Answer:

540 degrees

Step-by-step explanation:

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3 years ago

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Please solve this question

Svetlanka [38]

Answer: here 298.45

Step-by-step explanation:

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Mrs. Cratchit went to the market to buy 4.5 pounds of sliced fruit in a container. She paid with a $20 bill and a $5 bill and re

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Answer:

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