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Galina-37 [17]
3 years ago
5

Adding and subtracting matrices ​

Mathematics
1 answer:
Maurinko [17]3 years ago
5 0

Answer:

I NEED POINTS

Step-by-step explanation:

I'm just gonna answer this.

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An amusement park has discovered that the brace that provides stability to the ferris
antiseptic1488 [7]

Answer:

Hence the correct answer is option (A) 4.708.

Step-by-step explanation:

Solution:-

Now, we need to find the angle of the sector by using sector  formula,

A = 28.25 ft^{2} \\r = 12ft.\\\\28.25 = \frac{\theta}{360^{o} } \times \pi \times 12^{2} \\\\\theta=\frac{28.25\times 360}{12 \times12 \times \pi} \\\\\theta =( \frac{70.625}{\\pi} )^{o}

We now convert the angle to radian  

\theta = \frac{70.625}{\pi}  \times \frac{\pi}{180}\\\\\theta = 0.39236 radian  

Now we calculate the length of arc by arc formula  

\theta=\frac{I}{12} \\\\0.39236 =\frac{I}{12}\\\\I  = 4.708 feet.  

So, The length of steel that must be replaced is 4.708 ft.  

4 0
3 years ago
What is the decimal value of 16/32
Flauer [41]

The decimal value of 16/32 is 0.5

:)

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3 years ago
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3 years ago
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A student has gotten the following grades on his tests. What is the minimum grade he must get on the last test in order to have
steposvetlana [31]
In order to get an 81 average, 
the student has to get 81x5=405

71+96+90+73+?=405
330+?=405
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he needs to get an 75

3 0
3 years ago
. You answer 95% of the questions correctly on a 20-question test. How many questions do you answer correctly
lions [1.4K]

Answer:You answered 19 questions correctly and 1 question wrong

Step-by-step explanation:First you have to divide 20 by whatever number that can get you to the number 100 by 20,which is 5(100 divided by 5 equals 20)Lastly you have to divide 95 by 5 and you get 19!

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