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3 years ago

SOMEONE HELP ME OUTTT!!!!!!

Mathematics

1 answer:

beks73 [17]3 years ago

5 0

Answer:

3/5

SOH-CHA-TOA

Sin = opposite / hypotenuse = 21/35 = 3/5

Step-by-step explanation:

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A plane is a figure. The intersection of two planes that do not coincide (if it exists) is a

ser-zykov [4K]

Solution:

A plane is a two Dimensional figure.

The Intersection of two planes that do not coincide is always a line.

Consider two planes ,A and B, Following are the possibilities

1. They may be parallel to each other.→→→ No curve obtained

2. The planes A and B can Coincide with each other.→→→Intersection is a plane.

3. The planes A and B are intersecting.→→→→Intersection is a line.

3 0

4 years ago

Read 2 more answers

Ana Participated in each charity walk she raise $.25 and each 1/2 That she walked the first day and I walked 11 miles a second d

Tresset [83]

Question:

Ana participated in a charity walk. She raised $0.25 for each 1/2 mile that she walked.The first day Ana walked 11 miles.The second day, she walked 14 miles.How much money did Ana raised?

Answer:

Ana raised $ 12.5

Solution:

From given question,

First day walk = 11 miles

Second day walk = 14 miles

Let us first calculate the total distance she walked

Total distance = first day walk + second day walk

Total distance = 11 + 14 = 25 miles

Thus she walked for 25 miles

Given that,

She raised $0.25 for each 1/2 mile that she walked

$\frac{1}{2} \text{ mile} = 0.25 \text{ dollars }$

Therefore, for 1 mile we get,

$\frac{1}{2} \times 2 \text{ mile} = 0.25 \times 2 \text{ dollars }\\\\1 \text{ mile } = 0.5 \text{ dollars }$

Now calculate for 25 miles

$25 \text{ mile } = 25 \times 0.5 = 12.5 \text{ dollars }$

Thus she raised $ 12.5

4 0

3 years ago

Using the definitions of even integer and odd integer, give a proof by contraposition that this statement is true for all intege

kvasek [131]

Suppose $n$ is even, i.e. there is some integer $k$ such that $n=2k$ . Then

$3n-5=3(2k)-5=6k-5=6k-6+1=2(3k-3)+1=2K+1$

where $K$ is just some other integer. Therefore $3n-5$ is odd, proving the contrapositive, and so the original statement is also true.