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Mila [183]
2 years ago
10

Select the matrix that represents the vector.​

Mathematics
1 answer:
Liula [17]2 years ago
5 0
<h3>Answer:  Choice D</h3>

Explanation:

Start at the arrow tip. Move vertically until reaching the x axis. You'll arrive at x = 7 which is the x component of the vector.

Go back to the arrow tip. This time move horizontally until reaching the y axis, so you should arrive at y = -6

Therefore the vector is \begin{bmatrix}7\\-6\end{bmatrix} which is in a column vector format. A row vector would have the numbers listed horizontally.

Put another way, the arrow tip is at the point location of (7,-6). This leads directly to the column vector mentioned in the previous paragraph.

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When Mindy went to china, she exchanged $1 for 6.589 yuan. What digit is in the hundredths place of 6589?
mafiozo [28]

eight would be the answer

6 0
3 years ago
\dfrac{-2}{3} \div 2\dfrac{1}{4} = <br> 3<br> −2<br> ​ <br> ÷2 <br> 4<br> 1<br> ​
bekas [8.4K]

Answer:

\dfrac{-2}{3} \div 2\dfrac{1}{4} = \dfrac{-8}{27}

Step-by-step explanation:

Given

\dfrac{-2}{3} \div 2\dfrac{1}{4} =

Required

Solve

Start by converting the mixed number to improper fraction

\dfrac{-2}{3} \div \dfrac{9}{4} =

Convert the division to muliplication

\dfrac{-2}{3} * \dfrac{4}{9} =

\dfrac{-2*4}{3*9}=

\dfrac{-8}{27}

Hence:

\dfrac{-2}{3} \div 2\dfrac{1}{4} = \dfrac{-8}{27}

7 0
3 years ago
The table contains the lengths of the sides of different triangles. Do the given side lengths form a right triangle?
WARRIOR [948]

Answer:

ans: it's order wise

a) yes

b) no

c) no

d) no

Step-by-step explanation:

use pythagoras theorem

h² = p² + b²

data given satisfying the theorem form right angled triangle

8 0
3 years ago
Find the gradient of the curve y=-x^-3-5x^2+7x at x=2​
Harman [31]

-8

Step-by-step explanation:

The gradient or slope of a curve y is simply the derivative of the curve at a point x. So we can proceed as follows

\dfrac{dy}{dx} = \dfrac{d}{dx}(x^3 -5x^2 +7) = 3x^2 -10x

Evaluated at x = 2, the gradient of the slope is

\left.\dfrac{dy}{dx}\right|_{x=2} = 3(2)^2 - 10(2) = -8

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2 years ago
What is the volume of a cylinder with a radius of 4 squared and height of 11 and in terms of pie
VashaNatasha [74]

Answer:

552.92

Step-by-step explanation:

8 0
3 years ago
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