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Leno4ka [110]
3 years ago
10

5. Which unit is used to measure volume? Hours Feet Gallons Tons

Mathematics
1 answer:
Katen [24]3 years ago
8 0
Gallons. I’m pretty sure
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A lawn sprinkler sprays water 5 ft in every direction as it rotates. What is the area of the sprinkled lawn?
Karolina [17]

Answer:

78.57

Step-by-step explanation:

Radius is 5 feet

Area of circle is pi*r  Squared

22/7*5*5

78.57 square feet

6 0
3 years ago
Read 2 more answers
Whoever answers this will get a cookieeeeeee (btw the first one is wrong, this is my 2nd attempt)
Juli2301 [7.4K]

Answer:

the answer is c

Step-by-step explanation:

7 0
3 years ago
For this exercise assume that all matrices are ntimesn. Each part of this exercise is an implication of the form​ "If "statement
inna [77]

Answer:

C. True; by the Invertible Matrix Theorem if the equation Ax=0 has only the trivial solution, then the matrix is invertible. Thus, A must also be row equivalent to the n x n identity matrix.

Step-by-step explanation:

The Invertible matrix Theorem is a Theorem which gives a list of equivalent conditions for an n X n matrix to have an inverse. For the sake of this question, we would look at only the conditions needed to answer the question.

  • There is an n×n matrix C such that CA=I_n.
  • There is an n×n matrix D such that AD=I_n.
  • The equation Ax=0 has only the trivial solution x=0.
  • A is row-equivalent to the n×n identity matrix I_n.
  • For each column vector b in R^n, the equation Ax=b has a unique solution.
  • The columns of A span R^n.

Therefore the statement:

If there is an n X n matrix D such that AD=​I, then there is also an n X n matrix C such that CA = I is true by the conditions for invertibility of matrix:

  • The equation Ax=0 has only the trivial solution x=0.
  • A is row-equivalent to the n×n identity matrix I_n.

The correct option is C.

5 0
3 years ago
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mojhsa [17]
The answer is c because the number of tickets (t) times the number of adults is the total cost
6 0
2 years ago
Solve for the indicated variable.<br> 8x + 4y = 12; y<br>​
Ket [755]

Answer:

y=-2x+3

Step-by-step explanation:

Given: 8x+4y=12

To solve for y, let us first isolate y on one side of the equation. We can do this by subtracting 8x from the left and move it to the right. We then get:

4y=12-8x

Now, we have y isolated. We now have to remove the 4 from the y. The only way to do this is divide both sides by 4. We then get our final answer:

y=3-2x

We can clean this up by putting it in a common form, slope-intercept form:

y=-2x+3

4 0
3 years ago
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