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2 years ago

Here is a graph of the relationship between the number of quarters and the number of dimes when there are a total of 17 coins.

Mathematics

1 answer:

kirill115 [55]2 years ago

8 0

Point a has more what she said

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Roscoe is exchanging $ 121 for Euros for his upcoming trip to Germany. If $2 can be exchanged for 1.78 Euros,how many Euros will

olasank [31]

Answer is define variable

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1 year ago

If you see these clouds in the sky, which type of weather might you expect?

UNO [17]

The answer to your question is thunderstorms.
The picture is filled with a lot of dark clouds, in which there will be a probability for thunderstorms to occur. We all know that when there is lightning, thunder will occur after it. With the photo given, there will be the probability of thunderstorm with heavy rain.

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3 years ago

3. Let U and V be subspaces of a vector space W. Prove that their intersection UnV is also a subspace of W

kenny6666 [7]

Answer: The proof is done below.

Step-by-step explanation: Given that U and V are subspaces of a vector space W.

We are to prove that the intersection U ∩ V is also a subspace of W.

(a) Since U and V are subspaces of the vector space W, so we must have

0 ∈ U and 0 ∈ V.

Then, 0 ∈ U ∩ V.

That is, zero vector is in the intersection of U and V.

(b) Now, let x, y ∈ U ∩ V.

This implies that x ∈ U, x ∈ V, y ∈ U and y ∈ V.

Since U and V are subspaces of U and V, so we get

x + y ∈ U and x + y ∈ V.

This implies that x + y ∈ U ∩ V.

(c) Also, for a ∈ R (a real number), we have

ax ∈ U and ax ∈ V (since U and V are subspaces of W).

So, ax ∈ U∩ V.

Therefore, 0 ∈ U ∩ V and for x, y ∈ U ∩ V, a ∈ R, we have

x + y and ax ∈ U ∩ V.

Thus, U ∩ V is also a subspace of W.

Hence proved.

7 0

3 years ago

Only need answers to number 2 and 3 would be helpful ASAP

12345 [234]

Answer:

2 is option 3

3 is option 2

Step-by-step explanation:

4 0

3 years ago

Exactly 640 acres are in one square mile. how many square meters are in 2.2 acres

Tasya [4]

640 acres = 1 square mile

So we can say 1 acres = $\frac{1}{640}$ square mile

So in 2.2 acres = $2.2 * \frac{1}{640}$ square mile

= 0.0034375 square mile

In general one mile = 1609.344 meters

So one square mile = 1609.344 * 1609.344 square meter

= 2589988 square meter

So 0.0034375 square mile = 0.0034375 * 2589988
= 8903.08375 square meter.

3 0

3 years ago