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stealth61 [152]
3 years ago
9

HELPPPP !!!

Mathematics
1 answer:
Irina-Kira [14]3 years ago
7 0

Answer:

b. 5x6

Step-by-step explanation:

Since we know that in order for a matrix multiplication to be defined, the number of columns in the first matrix must be equal to the number of rows in the second matrix.

We have been given the dimensions of a matrix as: 3 by 5, which means that the number of rows in the given matrix is 3 and number of columns is 5.

In order to multiply our matrix F with another matrix, the number of rows in the another matrix must be equal to 5.    

Now let us see our given choices one by one.

a.  3x5

Upon looking at our first option we can see that number of rows in this matrix is 3 and number of columns of our matrix F is 5. 3 is not equal to 5, therefore, option a is not a correct choice.

b. 5x6  

Number of rows of the matrix provided in option b is 5 and number of columns of our matrix F is also 5, therefore, option b is the correct choice.

c. Since we know that multiplication of matrices is possible with compatible dimensions, therefore, option c is not a correct choice.  

d. As we already found our correct option, therefore, 'none of the choices work' is not a correct choice.

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4 0
3 years ago
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aksik [14]

HETY is a parallelogram.

HT and EY are diagonals. We know that diagonals divides the parallelogram into two equal parts.

So ar(HET) = ar(HTY)

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And in AHTY,

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5 0
2 years ago
(4 pts) If a rock is thrown vertically upward from the surface of Mars with an initial velocity of 15m/sec
Yuliya22 [10]

Answer:

Step-by-step explanation:

I see you're in college math, so we'll solve this with calculus, since it's the easiest way anyway.

The position equation is

s(t)=-1.86t^2+15t  That equation will give us the height of the rock at ANY TIME during its travels. I could find the height at 2 seconds by plugging in a 2 for t; I could find the height at 12 seconds by plugging in a 12 for t, etc.

The first derivative of position is velocity:

v(t) = -3.72t + 15 and you stated that the rock will be at its max height when the velocity is 0, so we plug in a 0 for v(t):

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t = 4.03 seconds. This is how long it takes to get to its max height. Knowing that, we can plug 4.03 seconds into the position equation to find the height at 4.03 seconds:

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s(4.03) = 30.2 meters.

Calculus is amazing. Much easier than most methods to solve problems like this.

7 0
2 years ago
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IceJOKER [234]
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5 0
3 years ago
Yung bought $4.60 worth of bubble gum. Each piece of gum cost $0.10. How many pieces of bubble gum did Yung buy?
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<u><em>Answer:</em></u>

Yung bought 46 pieces of bubble gum for $4.6

<u><em>Explanation:</em></u>

We are given that each piece of gum cost $0.1 and that he spent $4.6 on gums

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