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denis-greek [22]
2 years ago
15

The dot product of u ∙ u = 45 what is the length of u?

Mathematics
2 answers:
s344n2d4d5 [400]2 years ago
5 0

Answer:

67 hah why you solve this

EleoNora [17]2 years ago
5 0

\textbf{u} \cdot \textbf{u} = 45\\\\\implies |\textbf{u}|^2 =45\\\\\implies |\textbf{u}| = 3\sqrt{5}

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Find all the zeros of the polynomial function:<br> y = x3 – 2x² + 9x – 18
svp [43]
The factoring: (x+2) (x+3) (x-3)
zeros: x=-2,-3,3
3 0
2 years ago
The sugar company will choose from two companies to transport its sugar to market. the first company charges $6500 to rent truck
yulyashka [42]

Answer:

20 ton

Step-by-step explanation:

We created a system of two separate equations to answer these questions.

"y" will be the total cost to transport the sugar

"x" will be the amount of sugar transported

Therefore, we have to:

y = 3995 + 225.50 * x

y = 6500 + 100.25 * x

We must establish these equations equal to each other because it asks how much of x is necessary to make the same amount of y, therefore:

3995 + 225.50 * x = 6500 + 100.25 * x

solved we have:

225.50 * x - 100.25 * x  = 6500 - 3995

125.25 * x = 2505

x = 2505 / 125.25

x = 20

which means that when the amount of sugar transported is 20 tons, the price is the same

4 0
3 years ago
Two numbers are in the ratio 3:2, if the smaller number is 10. what is the bigger number?
boyakko [2]

Answer:

Step-by-step explanation:

I don't say u must have to mark my ans as brainliest but if it has really helped u plz don't forget to thank me..

3 0
3 years ago
Sarah took out a $30,000 loan for 11 years at a 4.7% interest rate to put a new pool in her backyard. If
MissTica

The amount of the loan after 11 years is $34,113.53 and the intereest earned is $4,113.53

<h3>How to calculate the compound interest</h3>

The formula for calculating the exponential function is expressed as:

A =P(1+\frac{r}{n} )^t

Given the following

  • P = 30,000
  • r = 0.047
  • t = 11 years
  • n = 4

Substitute into the formula to have:

A=30000(1+\frac{0.047}{4} )^{11}\\A =30000(1.13711)\\A =\$34,113.53

Hence the amount of the loan after 11 years is $34,113.53

<h3>Find the interest earned</h3>

Interest = A - P

Interest = 34,113.53 - 30000

Interest = 4,113.53

Hence the intereest earned is $4,113.53

Learn more on compound interest here: brainly.com/question/24924853

7 0
2 years ago
F(x) = -7x - 1<br> f() = -8
xxMikexx [17]

Answer:

  f(1) = -8

Step-by-step explanation:

Apparently, you want the argument of the function such that the function value is -8. Fill in the given information and solve for x:

  -8 = -7x -1

  -7 = -7x . . . . add 1

  1 = x . . . . . . . divide by -7

Now, you know that ...

  f(1) = -8

3 0
3 years ago
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