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Valentin [98]
2 years ago
12

If matrix A is 3 x 4 and matrix B is 4 x 6, the dimensions of matrix product AB are

Mathematics
2 answers:
gtnhenbr [62]2 years ago
4 0
It's 3 x 6..................
qwelly [4]2 years ago
3 0
Matrix AB's dimensions are 3x6
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Heather makes $6.50 per hour. Every three months, she is eligible for a 2% raise. How much will she make after 2 years if she ge
sammy [17]

Answer:

$7.62 per hour


Step-by-step explanation:

Since, Heather gets a raise every 3 months, in 2 years, she will get a raise 8 times (2years = 24 months, 24 divided by 3 is 8).

Now it becomes a compound growth problem. We can use the formula shown below to solve these type of problems.

F=P(1+r)^t

Where,

  • F is the future value (what we want to find)
  • P is the present rate ($6.5)
  • r is the rate of growth, in decimal (2% growth means 0.02)
  • t is the time frame, number of times compounding occurs (for our case we have figured it to be 8)

<u>Now plugging in all the info, we get the value of F:</u>

F=P(1+r)^t\\F=6.5(1+0.02)^8\\F=6.5(1.02)^8\\F=7.62


Thus, after 2 years, Heather's hourly rate will be $7.62


7 0
3 years ago
Is this a function?<br> {(-1,3); (-2,-3); (2,0); (0,2)}
Molodets [167]
Yes, because the x’s aren’t repeated
8 0
2 years ago
The river family invested $4300 in a certificate of deposit (cd). The rate of interest is 2.8% compounded yearly. Give the value
alexgriva [62]

Answer:

$722.40

Step-by-step explanation:

2.8% x 4300 = 120.4

120.4 x 6 = 722.40

7 0
3 years ago
Read 2 more answers
What is the acceleration of an object in air that has a velocity of Om/s?
pochemuha

Answer:

9.8m/s^2

Step-by-step explanation:

5 0
2 years ago
The double number line shows that 4 kilograms of almonds cost $34
Nuetrik [128]
34/4=8.5
8.5x5=42.5
The answer is $42.50
6 0
2 years ago
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