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Degger [83]
3 years ago
6

If a matrix does NOT have an inverse, what do you know about the determinant?

Mathematics
1 answer:
Strike441 [17]3 years ago
7 0
Here is your answer!

B) The determinent is 0
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Find the value of x. Round the length to the nearest tenth.
Mamont248 [21]
From right triangle trigonometry, we have the following:

\displaystyle{ tan(35^o)= \frac{opposite \ side }{adjacent \ side }, 


where the "opposite side" means the opposite side to angle with measure 35^o, and "adjacent side" means the adjacent side to angle with measure 35^o.

tan(35^o) is a constant which can be found using a calculator.

In the calculator of the pc press: view - scientific - 35 - tan.

 This gives tan(35^o)=0.7


Thus, back in the equation \displaystyle{ tan(35^o)= \frac{opposite \ side }{adjacent \ side } we substitute as follows and solve:


\displaystyle{0.7= \frac{x }{12 }\\\\

x=0.7\cdot12=8.4


Answer: 8.4 cm
5 0
3 years ago
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Change 0.72 to a percent
tino4ka555 [31]
Multiply 0.75 by 100

75 %
3 0
4 years ago
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Number 3 please explain and show work ☺☺
vlabodo [156]
There are 16 ounces in a pound, so 28 pounds is 448 ounces. Divide 448 by 8 which equals 56 ounces of dog food.
7 0
3 years ago
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PLEASE HELP ME!! LAST ASSIGNMENT
Darya [45]

Answer:

u = 3

Step-by-step explanation:

\frac{10}{14} = \frac{35}{u + 46} \\\\ 10(u + 46) = 35×14 \\\ 10u + 460 = 490 \\\ 10u = 490 - 460 \\\ 10u = 30 \\\ u = \frac{30}{10} \\\\ u = 3

I hope I've helped you.

5 0
2 years ago
Read 2 more answers
-3х + 2y = 56<br> -5x- 2y = 24<br><br> X=<br> Y=
Ket [755]

Answer:

x = -10

y = 13

Step-by-step explanation:

-3x + 2y = 56

-5x - 2y = 24

__________ +

-8x____ = 80

x______= 80/-8

______x = -10

-3x + 2y = 56

-3(-10) + 2y = 56

30 + 2y = 56

2y = 56 - 30

2y = 26

y = 26/2

y = 13

5 0
4 years ago
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