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3 years ago

Pleaseeee helppp!! ……..

Mathematics

2 answers:

inysia [295]3 years ago

7 0

Answer: B

Step-by-step explanation:

Misha Larkins [42]3 years ago

5 0

Answer:

the answer is B

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You pick a card at random, put it back, and then pick another card at random.

Colt1911 [192]

Answer: i think the correct answer would be 1/3

Step-by-step explanation:

4 0

3 years ago

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Find the volume of the solid generated by revolving the area bounded by y=x^2 and x-axis from [0,2] around the x-axis

lesya [120]

Answer: $\dfrac{32\pi }{5}\ \text{unit}^3$

Step-by-step explanation:

Given

The area is bounded by $y=x^2$ and x-axis from [0,2]

The volume generated for $y=f(x)$ when rotated about the x-axis in the interval [a,b] is

$V=\int_a^b\pi y^2dx$

Insert the values

$\Rightarrow V=\int_0^2\pi x^4dx\\\\\Rightarrow V=\pi \int_0^2x^4dx\\\\\Rightarrow V=\pi \left[ \dfrac{x^5}{5}\right]_0^2\\\\\Rightarrow V=\dfrac{2^5\pi }{5}\\\\\Rightarrow V=\dfrac{32\pi }{5}\ \text{unit}^3$

8 0

3 years ago

I need answer and work to plss and thanks

klio [65]

You would basicly multiply 2.5*2.5. because the formula for area is A=lw. So the answer is 6 1/4

7 0

3 years ago

1 1/3 ÷ 1/4 + 2/5 ÷ 1/4 + 4/15 ÷ 1/4 RSM QUESTION HELLLLLLLLLLLLLLLP

prisoha [69]

For this case we must simplify the following expression:

$1 \frac {1} {3}$ ÷ $\frac {1} {4}$ + $\frac {2} {5}$ ÷ $\frac {1} {4}$ + $\frac {4} {15}$ ÷ $\frac {1 }{4}$

We convert mixed numbers to improper fractions:

$\frac {3 * 1 + 1} {3}$ ÷ $\frac {1} {4}$ + $\frac {2} {5}$ ÷ $\frac {1} {4}$ + $\frac {4} {15}$ ÷ $\frac {1} {4}$ =

$\frac {4} {3}$ ÷ $\frac {1} {4}$ + $\frac {2} {5}$ ÷ $\frac {1} {4}$ + $\frac {4} {15}$ ÷ $\frac {1} {4}$ =

We first solve the divisions:

$\frac {\frac {4} {3}} {\frac {1} {4}} + \frac {\frac {2} {5}} {\frac {1} {4}} + \frac {\frac {4} {15}} {\frac {1} {4}} =\\\frac {4 * 4} {3 * 1} + \frac {4 * 2} {5 * 1} + \frac {4 * 4} {15 * 1} =\\\frac {16} {3} + \frac {8} {5} + \frac {16} {15} =$

We rewrite the fractions:

$\frac {16 * 5} {3 * 5} + \frac {8 * 3} {5 * 3} + \frac {16} {15} =\\\frac {80} {15} + \frac {24} {15} + \frac {16} {15} =\\\frac {80 + 24 + 16} {15} =\\\frac {120} {15} =\\\frac {24} {3} =\\8$

Answer:

6 0

3 years ago

Eduardo and Leticia have 36 stickers together. Leticia's collection has 3 times as many stickers in it as Eduardo's collection.

Gre4nikov [31]

Answer:

Step-by-step explanation:

E+L=36 and L=3E so

E+3E=36

4E=36

E=9, and since L=3E

L=3(9)=27

Letecia has 27 stickers and Eduardo has 9 stickers.

4 0

3 years ago

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