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3 years ago

Angle CDE has a slightly greater measure than the measure

Mathematics

2 answers:

svlad2 [7]3 years ago

6 0

Answer:

Step-by-step explanation:

jasenka [17]3 years ago

6 0

A possible answer is anything greater than 90 degrees, because a right angle is 90 degrees. So, you’re possible angle measure for CDE could be 100 degrees.

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If the diameter of the circle below is 16 in., what is the area of the circle?

mote1985 [20]

Answer:

64π inches² (approximately 201.06 inches²)

Step-by-step explanation:

$A=\pi r^2$ where $r$ is the radius

To find the radius, divide the diameter by 2

16 ÷ 2 = 8 inches

Plug in 8 as the radius

$A=\pi (8)^2\\A=64\pi$

$A=201.06$ (approximately)

Therefore, the area of the circle is 64π inches², or approximately 201.06 inches².

I hope this helps!

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3 years ago

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.A tank contains seven liters of 10% alcohol solution. How many liters of 6% alcohol solution should be added to have 8% alcohol

zmey [24]

Answer: 7 liters of 6% alcohol solution.

Step-by-step explanation:

We have 7 liters of 10% alcohol solution, and in this the total amount of alcohol is

A = (10%/100%)*7 L = 0.1*7L = 0.7L

Now, suppose that we add N liters of 6% alcohol solution, then we have a total of:

(N + 7) Liters

And the total amount of alcohol would be:

(6%/100%)*N + 0.7L

0.06*N + 0.7L

The quotient between the total volume of alcohol and the total volume of liquid needs to be 0.08 (because we want a percentage of 8% of alcohol, and the decimal form of 8% is 0.08)

Then:

(0.06*N + 0.7L)/(N + 7L) = 0.08

We want to sove this for N

(0.06*N + 0.7L) = 0.08*(N + 7L)

0.06*N + 0.7L = 0.08*N + 0.56L

0.7L - 0.56L = 0.08*N - 0.06*N

0.14 L = 0.02*N

0.14L/0.02 = N = 7L

Then we need to add 7 liters of 6% alcohol solution.

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3 years ago

Allison and Lindsey each measured their bedrooms for new carpeting. They found

Pavel [41]

Answer:

Step-by-step explanation:

Let's assume that the length of a side of Allison's room as x

So, Lindsey's room = x + 3

If Lindsey's room needs 225 sq. feet of carpeting, then x + 3 = $\sqrt{225}$

So, x + 3 = 15

Therefore, x = 15 - 3 = 12 ( So, Allison's room has a side of length 12)

Therefore, the carpeting needed = 12 × 12 = 12² = 144 sq. feet

There's your answer!

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3 years ago

What is the answer for 35/100+5/10?

valentinak56 [21]

First, get the common denominator. Do this by multiplying 5/10 by 10
35/100 + 50/100 = 85/100
Then,simplify :
17/20
Hope this helps!

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3 years ago

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What is the measure of the missing angle?<br> 60°<br> 80°<br> 100<br> 180°

igor_vitrenko [27]

80. this is bc the triangle must add up to 180 and 60+40=100

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3 years ago

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