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Valentin [98]
3 years ago
12

!lol help pls im vv bad at math and angles

Mathematics
1 answer:
Vanyuwa [196]3 years ago
6 0

Answer:

y=130°

Step-by-step explanation:

180-(90+40)

180-130

50°

y=180°-50°

=130°

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Find the vector that has the same direction as 3, 2, −6 but has length 2.
Nata [24]

Answer:

The vector is \vec r = \left(\frac{6}{7},\frac{4}{7},-\frac{12}{7}\right).

Step-by-step explanation:

We can determine the equivalent vector (\vec r), dimensionless, by means of the following formula:

\vec r = \frac{\vec u}{\|\vec u\|} \cdot \|\vec r\| (1)

Where:

\vec u - Original vector, dimensionless.

\|\vec u\| - Norm of the original vector, dimensionless.

\|\vec r\| - Norm of the new vector, dimensionless.

The norm of the original vector is determined by the following definition:

\|\vec u\| = \sqrt{\vec u\,\bullet \,\vec u} (2)

If we know that \vec u = (3, 2, -6), then the norm of the original vector is:

\|\vec u\| = \sqrt{(3)\cdot (3)+(2)\cdot (2)+(-6)\cdot (-6)}

\|\vec u\| = 7

If we know that \|\vec r\| = 2, then the new vector is:

\vec r = \frac{2}{7}\cdot (3,2,-6)

\vec r = \left(\frac{6}{7},\frac{4}{7},-\frac{12}{7}\right)

The vector is \vec r = \left(\frac{6}{7},\frac{4}{7},-\frac{12}{7}\right).

7 0
3 years ago
Marco drove 75 miles in 1 2/3 hours. How many miles can he drive in 1 hour? (SHOW WORK)
love history [14]

Answer:

  45 miles

Step-by-step explanation:

Marco's average speed is ...

  (75 mi)/(5/3 h) = 75·3/5 mi/h = 45 mi/h

Marco's rate of travel is 45 miles in one hour.

4 0
3 years ago
Read 2 more answers
Is this function linear or nonlinear​
Neporo4naja [7]

Answer:

Nonlinear

Step-by-step explanation:

There is an exponent so the equation will not be linear.

Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!

6 0
2 years ago
Read 2 more answers
Using radiclas, write equivalent expression for the expression y to the power of 2 1/3
SashulF [63]

Answer:

\large\boxed{y^{2\frac{1}{3}}=y^2\sqrt[3]y}

Step-by-step explanation:

y^{2\frac{1}{3}}\\\\\text{use}\ a^n\cdot a^m=a^{n+m}\\\\=y^{2+\frac{1}{3}}=y^2\cdot y^\frac{1}{3}\\\\\text{use}\ a^\frac{1}{n}=\sqrt[n]{a}\\\\=y^2\sqrt[3]y

6 0
3 years ago
What is an equation of the line that passes through the points (4, 3) and (7, 3)?
dlinn [17]

Answer:

y = mx+b

Step-by-step explanation:

m is the slope, and

b is the y-intercept

3 0
2 years ago
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