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3 years ago

(¤_¤) help plz. I'm confused

Mathematics

1 answer:

Alex73 [517]3 years ago

7 0

I know this is not an answer but, I love your handwriting!

It is soooo much neater than mine!

- Laura <3

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Classify the polynomial 2x3 + 6x2 - 4 by the number of terms.

Andrej [43]

Answer:

trinomial

Step-by-step explanation:

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3 years ago

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If the dimensions of the following cylinder are quadrupled, what will be the volume of the new similar cylinder?

Alik [6]

Answer: First option is correct.

Explanation:

Since we have given that

Radius = 11 inches

Height = 14 inches

Now, according to question, we have mentioned that all the dimensions of the cylinder is to be quadrupled i.e. four times.

Then,

Radius is given by

$4\times 11=44 inches$

Height is given by

$14\times 4=56\ inches$

As we know the formula for " Volume of cylinder ":

$V=\pi r^2h\\\\V=3.14\times 44\times 44\times 56=340426.24\ in^3$

Hence, our volume of new similar cylinder is 340426.24 cubic in.

Therefore, First option is correct.

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3 years ago

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- An expression is shown. 12.3 - (-21.45) What is the value of the expression?

Rus_ich [418]

Answer:

33.75

Step-by-step explanation:

12.3 -(-21.45)

12.3 + 21.45 (because minus of minus becomes plus)

33.75

6 0

1 year ago

If csc θ=8/7, which equation represents cotθ

TEA [102]

Sin θ = opposite leg/hypotenuse
csc θ = hypotenuse /opposite leg =8/7

cot θ = adjacent leg/opposite leg

hypotenuse =8
opposite leg =7
We need to find adjacent leg.

(Opposite leg)² +(adjacent leg)² = hypotenuse²
7² + (adjacent leg)² =8²
(adjacent leg)² = 64 - 49
(adjacent leg)² = 15

adjacent leg=+/-√15
WE need only positive root,
so adjacent leg =√15

cot θ = √15/7 or 0.5533

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3 years ago

Given the function g(x) = x2 - 4x + 0, determine the average rate of change of

kozerog [31]

Answer:

Step-by-step explanation:

ARC = $\frac{g(b) -g(a)}{b-a}$ , b = 7, a = 1

24/6 = 4

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3 years ago