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kotegsom [21]
3 years ago
7

Flora made seven with all the $75 each from her bank account what was the overall change in her account

Mathematics
1 answer:
Dmitry [639]3 years ago
7 0
Answer to your question be $750 will be the total charge on her account
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Let u = <-4, 3>. Find the unit vector in the direction of u, and write your answer in component form. (2 points)
lana66690 [7]

Answer:  < -4/5,  3/5>

This is equivalent to writing < -0.8, 0.6 >

======================================================

Explanation:

Draw an xy grid and plot the point (-4,3) on it. Draw a segment from the origin to this point. Then draw a vertical line until reaching the x axis. See the diagram below.

We have a right triangle with legs of 4 and 3. The hypotenuse is \sqrt{4^2+3^2} = \sqrt{16+9} = \sqrt{25} = 5 through use of the pythagorean theorem.

We have a 3-4-5 right triangle.

Therefore, the vector is 5 units long. This is the magnitude of the vector.

Divide each component by the magnitude so that the resulting vector is a unit vector pointing in this same direction.

Therefore, we go from < -4, 3 > to < -4/5,  3/5 >

This is equivalent to < -0.8, 0.6 > since -4/5 = -0.8 and 3/5 = 0.6

Side note: Unit vectors are useful in computer graphics.

6 0
2 years ago
4 Which of the following could be the areas of the three squares shown? ​
Step2247 [10]

Answer:

83 due to the lack of explanation

Step-by-step explanation:

6 0
2 years ago
Tori has already jarred 8.24 liters of jam and will jar an additional 7.36 liters of jam every day.How much jam did Tori jar if
gayaneshka [121]

Answer:

Step-by-step explanation:24 liters of jam after 4 days. How much jam did Alexa jar if she spent 8 days making jam? Assume the relationship is directly proportional.

3 0
3 years ago
i require assistance on this mathematics homework. I would gladly appreciate any sort of help. n o b o t s
shutvik [7]
I have no idea about the ancwer
4 0
2 years ago
Read 2 more answers
Can someone please help with these 2 math questions? :)
juin [17]

Answer:

4. 8.8 years

5. 8.6 meters

Step-by-step explanation:

4. The process of solving the equation f(x) = g(x) gives rise to a 4th-degree equation. Those are best solved using some sort of machine solver. A graphing calculator is often a good place to start. If you're going to do that anyway, you may as well start with a graphical solution to the question.

A plot of the two curves finds they intersect at about x = 8.8. (See the first attachment.) This avoids the extraneous solutions introduced by the process of eliminating the radical.

___

5. Analytical solution is simpler here, but the graphing calculator is faster yet. It shows the two rocks are at the same height at 8.6 meters (if they're launched at the same time).

... f(x) = g(x)

... -4.9x^2 +17 = -4.9x^2 +13x

... 17 = 13x . . . . . add 4.9x^2

... 17/13 = x . . . . time when rocks meet

... f(17/13) = -4.9(17/13)^2 +17 = -1416.1/169 +17 ≈ 8.62071

... f(17/13) ≈ 8.6 . . . . height at which rocks meet

7 0
3 years ago
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