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Volgvan
3 years ago
13

100 POINTS!!!! HELP!!!!

Mathematics
2 answers:
Eduardwww [97]3 years ago
8 0

Answer:

Step-by-step explanation:

h

=

3

V

π

r

2

I think?

enyata [817]3 years ago
7 0

Answer:

V = 30pi

Step-by-step explanation:

V = 1/3πr^2h

We are given the diameter of 6.  The radius is 1/2 of the diameter so the radius is 3.  The height is 10

Substituting these values into the formula

V = 1/3 * pi * (3)^2 * 10

V =30 *pi

We cannot substitute a value for pi and get an exact value

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What fraction is equal to 0.25
Dmitry [639]

Answer:

Step-by-step explanation:

0.25 = 25/100=1/4

8 0
3 years ago
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Which two values of x are roots of the polynomial below? 3x2 - 3x + 1
Inga [223]

For this case we have the following polynomial:

3x^2 - 3x + 1

Applying the formula of the resolvent we have:

x=\frac{-b+/-\sqrt{b^2-4ac}}{2a}

Substituting values we have:

x=\frac{-(-3)+/-\sqrt{(-3)^2-4(3)(1)}}{2(3)}

Rewriting we have:

x=\frac{3+/-\sqrt{9-12}}{6}

x=\frac{3+/-\sqrt{-3}}{6}

x=\frac{3+/-i\sqrt{3}}{6}

Therefore, the roots of the polynomial are given by:

x=\frac{3+i\sqrt{3}}{6}

x=\frac{3-i\sqrt{3}}{6}

Answer:

The values of x that are roots of the polynomial are:

x=\frac{3+i\sqrt{3}}{6}

x=\frac{3-i\sqrt{3}}{6}

5 0
4 years ago
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Evans play room is four M by 3M the area of the room is
pav-90 [236]

Answer:  The area of the room is 12m^2


Step-by-step explanation:

a = l*w

Substitute the values

a = 4m*3m

a = 12m^2

Therefore the area of the room is 12m^2


7 0
4 years ago
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i am trying to solve question two with the graphing method but can’t figure out how because there is only y=2.
Molodets [167]

Answer: look in the explanantion :)

Step-by-step explanation:

So basically when something is y=2, that means that its just a horizontal line at the number 2

so it would just be a straight horizontal line that is located at the y point of 2

5 0
3 years ago
Roman buys seed packets for the school garden. One packet of radish seeds costs $1.75. One packet of tomato seeds costs $2.50. L
HACTEHA [7]
Answer:

C. t=23,r=9 .

Step-by-step explanation:

Let r represent the cost of one packet of radish seeds and let t represent the cost of one packet of tomato seeds.

Roman spent $62.75

This implies that,

1.75r+2.5t=62.75...eqn1

Roman bought 32 packets of seeds and one packet of radish seeds costs
$ 1.75.
One packet of tomato seeds costs $ 2.50.

This implies that,

r+t=32...eqn2

Using guess and check means we substitute into the given equation.

A) We substitute t=8,r=24 into both equations.

1.75(8)+2.5(24)=62.75...eqn1

14+60\ne 62.75...eqn1

8+24=32...eqn2

Both equations are not satisfied.

B)

We substitute t=9,r=23 into both equations.

1.75(9)+2.5(23)=62.75...eqn1

15.75+57.5\ne 62.75...eqn1

9+23=32...eqn2

Both equations are not satisfied.

C)

We substitute t=23,r=9 into both equations.

1.75(23)+2.5(9)=62.75...eqn1

40.25+22.5 =62.75...eqn1

23+9=32...eqn2

Both equations are satisfied.

Hence the solution is,

t=23,r=9

D) We substitute t=24,r=8 into both equations.

1.75(24)+2.5(8)=62.75...eqn1

42+20\ne 62.75...eqn1

24+8=32...eqn2

Both equations are not satisfied.
4 0
4 years ago
Read 2 more answers
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