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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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Point x is located at (-2,-6) and point z is located at (0,5). Find the y value for the point y that is located 1/5 the disteanc
Sedaia [141]

Answer:

-3 1/2


Step-by-step explanation:

We have to find the distance between x and z along the y-axis.

This will be: 5 - -6 = 11 units

1/5  of 11 = 1/5 × 11

                 = 11/5

                 = 2 1/5

Now add 2.5 to -6

2 1/2 + -6 = -3 1/2

The value of y = -3 1/2

8 0
3 years ago
PLEASE HELP ASAP!!!!!
mars1129 [50]

Answer:

15/40 or simplified 3/8

Step-by-step explanation:

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2 years ago
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Frank wrote these ratios to describe the number of votes each candidate received compared to the total. Which one is wrong, and
strojnjashka [21]

Answer:The right answer is (B)

Step-by-step explanation:

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3 years ago
Expand: f(x)= x^4- x^3+x^2+x-
emmainna [20.7K]
F(x) = x (x^3 - x^2 + x + 1)

6 0
2 years ago
What is the solution to sqrt 17-x=x+3? Show your work.
snow_lady [41]

Answer:

x=1

Step-by-step explanation:

Remember:

(\sqrt[n]{a})^n=a\\\\(a+b)=a^2+2ab+b^2

Given the equation \sqrt{17-x}=x+3, you need to solve for the variable "x" to find its value.

You need to square both sides of the equation:

(\sqrt{17-x})^2=(x+3)^2

17-x=(x+3)^2

Simplifying, you get:

17-x=x^2+2(x)(3)+3^2\\\\17-x=x^2+6x+9\\\\x^2+6x+9+x-17=0\\\\x^2+7x-8=0

Factor the quadratic equation. Find two numbers whose sum be 7 and whose product be -8. These are: -1 and 8:

(x-1)(x+8)=0

Then:

x_1=1\\x_2=-8

Let's check if the first solution is correct:

\sqrt{17-(1)}=(1)+3

4=4 (It checks)

Let's check if the second solution is correct:

\sqrt{17-(-8)}=(-8)+3

5\neq-5 (It does not checks)

Therefore, the solution is:

x=1

3 0
3 years ago
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