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
lbvjy [14]
3 years ago
12

Apply the indicated operation to the matrix. will mark brainliest, anyone pls?

Mathematics
1 answer:
Airida [17]3 years ago
4 0

Answer:

your answer is D.

-3  -2  -1

 0  3  6

Step-by-step explanation:

the number on the left of the indicated operation is the original set

the number '3' next to R shows that you need to multiply certain numbers by 3

the subscript on the R's shows which row the multiplication needs to be done on...

in this case the row is 2, and you need to multiply it by 3

so the first row will stay the same: -3  -2  -1

but the second row will change to: 0  3  6

You might be interested in
Find the remaining trigonometric ratios of θ if csc(θ) = -6 and cos(θ) is positive
VikaD [51]
Now, the cosecant of θ is -6, or namely -6/1.

however, the cosecant is really the hypotenuse/opposite, but the hypotenuse is never negative, since is just a distance unit from the center of the circle, so in the fraction -6/1, the negative must be the 1, or 6/-1 then.

we know the cosine is positive, and we know the opposite side is -1, or negative, the only happens in the IV quadrant, so θ is in the IV quadrant, now

\bf csc(\theta)=-6\implies csc(\theta)=\cfrac{\stackrel{hypotenuse}{6}}{\stackrel{opposite}{-1}}\impliedby \textit{let's find the \underline{adjacent side}}
\\\\\\
\textit{using the pythagorean theorem}\\\\
c^2=a^2+b^2\implies \pm\sqrt{c^2-b^2}=a
\qquad 
\begin{cases}
c=hypotenuse\\
a=adjacent\\
b=opposite\\
\end{cases}
\\\\\\
\pm\sqrt{6^2-(-1)^2}=a\implies \pm\sqrt{35}=a\implies \stackrel{IV~quadrant}{+\sqrt{35}=a}

recall that 

\bf sin(\theta)=\cfrac{opposite}{hypotenuse}
\qquad\qquad 
cos(\theta)=\cfrac{adjacent}{hypotenuse}
\\\\\\
% tangent
tan(\theta)=\cfrac{opposite}{adjacent}
\qquad \qquad 
% cotangent
cot(\theta)=\cfrac{adjacent}{opposite}
\\\\\\
% cosecant
csc(\theta)=\cfrac{hypotenuse}{opposite}
\qquad \qquad 
% secant
sec(\theta)=\cfrac{hypotenuse}{adjacent}

therefore, let's just plug that on the remaining ones,

\bf sin(\theta)=\cfrac{-1}{6}
\qquad\qquad 
cos(\theta)=\cfrac{\sqrt{35}}{6}
\\\\\\
% tangent
tan(\theta)=\cfrac{-1}{\sqrt{35}}
\qquad \qquad 
% cotangent
cot(\theta)=\cfrac{\sqrt{35}}{1}
\\\\\\
sec(\theta)=\cfrac{6}{\sqrt{35}}

now, let's rationalize the denominator on tangent and secant,

\bf tan(\theta)=\cfrac{-1}{\sqrt{35}}\implies \cfrac{-1}{\sqrt{35}}\cdot \cfrac{\sqrt{35}}{\sqrt{35}}\implies \cfrac{-\sqrt{35}}{(\sqrt{35})^2}\implies -\cfrac{\sqrt{35}}{35}
\\\\\\
sec(\theta)=\cfrac{6}{\sqrt{35}}\implies \cfrac{6}{\sqrt{35}}\cdot \cfrac{\sqrt{35}}{\sqrt{35}}\implies \cfrac{6\sqrt{35}}{(\sqrt{35})^2}\implies \cfrac{6\sqrt{35}}{35}
3 0
4 years ago
Compare and contrast the difference between "simplify a fraction" and "simplify a radical."
Ne4ueva [31]
Simplifying a fraction means most likely having it remain as a fraction and not a whole number and it can be converted as a decimal.

on the other hand, simplifying a radical, you would have no remainders, fractions, or decimals after simplifying.

thats the difference.
im not sure about similarities
8 0
4 years ago
PLZZZZ HELP!!!!!<br> I WILL GIVE BRAINLIEST AND 5 STAR AND 20 POINTS!!!<br> C=5/9 - (F−32)
ICE Princess25 [194]

Answer:

32 °F

Sorry if I'm wrong

Step-by-step explanation:

3 0
3 years ago
Analyze the diagram below and complete the instructions that follow.
Mnenie [13.5K]

Answer:

  D.  157°

Step-by-step explanation:

∠EFB and ∠AFB form a linear pair, so are supplementary.

∠EFB = 180° - ∠AFB = 180° -23°

∠EFB = 157°

5 0
3 years ago
30 cm
jasenka [17]

Answer:

20 cm i think

Step-by-step explanation:

7 0
4 years ago
Other questions:
  • What is the point-slope form of the equation for the line with a slope of -2 that passes through (1,4)?
    14·1 answer
  • The equation in slope intercept form
    9·1 answer
  • Which of the following is NOT a principle of making inferences from dependent​ samples? Choose the correct answer below. A. The
    15·1 answer
  • Would appreciate help on this please and thanks
    10·1 answer
  • WHat is the slope?<br><br> ..
    9·1 answer
  • Plz help with this word problem
    14·1 answer
  • How long will it take you to ski at a distance of 36 miles at the speed of 3 mph
    12·2 answers
  • Maggie is creating a cushion for a circular stool. The stool has a diameter of 14 inches. If she needs fabric to extend 2 inches
    11·1 answer
  • A ball shaped like a sphere has a radius of 5.4 cm . Which is the closest to the volume of the ball in cubic centimeters?
    6·2 answers
  • (15 points + Brainliest) Help solve the following geometry proof in the image, there can be as many statements and reasons.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!