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cupoosta [38]
3 years ago
11

Linda can mow 16 lawns in four days. what is the unit rate?

Mathematics
1 answer:
Gelneren [198K]3 years ago
5 0

16 \times 4 =
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Need help simple explanation if possible
photoshop1234 [79]

Answer:

m < A = 60º

m < B = 30º

Step-by-step explanation:

The given sides on this triangle are: 6, 6\sqrt{3}, and 12

Any triangle with the angles of 30º - 60º - 90º always has side lengths in this proportion:

x, x\sqrt{3}, 2x

We can line this up with the given sides. If x is 6, then 2x would be 12.

x : x\sqrt{3} : 2x = 6 : 6\sqrt{3} : 12

Angle B is across from 6, the shortest side. That also means that it corresponds to x, or the smallest angle in the proportion, 30º.

m < B = 30º

Solving for < A:

Method 1) Sum of Angles in a Triangle

Since we already know that one angle is right and therefore 90º and m < B is 30º, we can subtract these from the total sum of angle measures in a triangle to get the last angle, < A.

180º - 90º - 30º = 60º

m < A = 60º

Method 2) Using the second part of the proportion

Since m < A is across from the second largest side, we know that it is equal to x\sqrt{3} (6\sqrt{3} in this question) or 60º in the angle proportion.

This means that m < A = 60º

Let me know if you have any questions!

4 0
2 years ago
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Identify the volume and surface area in terms of π of a sphere with a great circle area of 225π ft2
Dafna1 [17]
The answer is going to be v= 4500ft3;S=900ft2
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Y=? cm<br> A15<br> B.10<br> C.3<br> D.5
Gelneren [198K]
What is the question?
3 0
3 years ago
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Helen is using glass tiles that each measure one square centimeter to make a
Vera_Pavlovna [14]

Answer: 12

Step-by-step explanation:

12 times 12 is 144 so 12.in each row

6 0
3 years ago
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Doris says 0 is not a rational number is she correct?
Sedaia [141]
As far as I know 0 IS a rational number. The only ones that are not rational are negative numbers. :) Though I could be wrong.....
7 0
3 years ago
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