1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
julia-pushkina [17]
3 years ago
15

What is the magnitude of a∠

Mathematics
1 answer:
Fofino [41]3 years ago
5 0

Answer:

Step-by-step explanation:

65

You might be interested in
The ratio of women to men in this university is 60:40, suppose the number of students in this class is 20, and i ask what number
BabaBlast [244]
3:2 ratio --> the answer is 12 btw
4 0
3 years ago
Use the augmented matrix method to solve the following system of equations. Your answers may be given as decimals or fractions.
Alexandra [31]

Answer:

x\ =\ \dfrac{21}{5}

y\ =\ \dfrac{3}{5}

z = 2

Step-by-step explanation:

Given equations are

x - 2y - z = 2

x + 3y - 2z = 4

-x + 2y + 3z = 2

from the given equations the augmented matrix can be written as

\left[\begin{array}{ccc}1&-2&-1:2\\1&3&-2:4\\-1&2&3:2\end{array}\right]

R_2=>R_2-R_1\ and\ R_3=>R_3+R_1

=\ \left[\begin{array}{ccc}1&-2&-1:2\\0&5&-1:2\\0&0&2:4\end{array}\right]

R_2=>\dfrac{R_2}{5}

=\ \left[\begin{array}{ccc}1&-2&-1:2\\0&1&\dfrac{-1}{5}:\dfrac{2}{5}\\0&0&2:4\end{array}\right]

R_1=>R_1+2.R_2

=\ \left[\begin{array}{ccc}1&0&-1-\dfrac{2}{5}:2+\dfrac{4}{5}\\\\0&1&\dfrac{-1}{5}:\dfrac{2}{5}\\\\0&0&2:4\end{array}\right]

=\ \left[\begin{array}{ccc}1&0&\dfrac{-7}{5}:\dfrac{14}{5}\\\\0&1&\dfrac{-1}{5}:\dfrac{2}{5}\\\\0&0&2:4\end{array}\right]

R_3=>\dfrac{R_3}{2}

=\ \left[\begin{array}{ccc}1&0&\dfrac{-7}{5}:\dfrac{14}{5}\\\\0&1&\dfrac{-1}{5}:\dfrac{2}{5}\\\\0&0&1:2\end{array}\right]

R_1=>R_1+\dfrac{7}{5}R_3\ and\ R_2+\dfrac{1}{5}R_3

=\ \left[\begin{array}{ccc}1&0&0:\dfrac{14}{5}+\dfrac{7}{5}\\\\0&1&0:\dfrac{2}{5}+\dfrac{1}{5}\\\\0&0&1:2\end{array}\right]

So, from the above augmented matrix, we can write

x\ =\ \dfrac{21}{5}

y\ =\ \dfrac{3}{5}

z = 2

7 0
3 years ago
Fred got a score of 68 on the test. Enter a division sentence using negative numbers where the quotient represents the number of
Contact [7]
100 / 68 equals negative 32.
4 0
3 years ago
Read 2 more answers
Here is the dialations that i need help on
Rasek [7]
I really don’t know sorry bro
8 0
3 years ago
Read 2 more answers
The equation of a line is y=1/4x-2 What is the equation of the line that is parallel to the first line and passes through (4, –2
STALIN [3.7K]
I believe <span>(4, –2) is correct :)</span>
7 0
2 years ago
Other questions:
  • A sequence is defined recursively by f(1) = 16 and f(n) = f(n-1) + 12 find f(4)
    5·1 answer
  • If a four-sided figure has four congruent sides, then it has four right angles. Prove this wrong
    11·1 answer
  • ???????????????????????????
    5·1 answer
  • I can’t figure out the answer to 4X+14
    7·2 answers
  • What is the answer to: y=-2x-5,4x+3y=15 using substitution to solve it..??
    5·1 answer
  • What is the solution to this inequality?<br><br><br> x/9 + 7 ≥ 10
    9·1 answer
  • Tell whether the function is linear. Then evaluate the function when x=-6 times f(x) = 3x + 4
    6·1 answer
  • How would u rewrite 4/5 and 1 2/3
    8·1 answer
  • Geometry: fill in the blanks, ASAP! It’s urgent
    12·1 answer
  • Use an integer or a fraction to describe the slope of a perpendicular To this line.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!