A cylinder closed tin of radius r cm is made from 600cm2 tin sheet of metal.
a.show that it’s height h cm is given by h =300- pi r /pi r

Answer:

1: -6m,

2: 10.3-12m,

3: 28a-7,

4: 5/8h+7

Step-by-step explanation:

so, a helpful thing with these, is to add like terms. with #4, we see that the letter m is with both of the numbers, and since we are adding a bigger negative to a positive, the answer will be a negative with the number. for 6, 2 numbers have an x, and 2 do not. so we add or subtract the like pairs, as in the ones with the letters, and then a separate one for the one with no letters. for the last one, you always want to have a "common denominator" which is the number on the bottom. because 8 is already on the bottom, and 4 is divisible by 8 by 2, we inversely multiply the top and bottom numbers for the "3/4" and would get "6/8" to match the bottom denominator for "1/8" hope this helps

Answer:

[tex]v = \frac{1}{2} a {t}^{2} \\ a = \frac{2v}{ {t}^{2} } [/tex]

'a' can be expressed in terms of 'v' and 't' as -

[tex]$a=\frac{2v}{t^{2} }[/tex]

We have the following expression -

[tex]$v = \frac{1}{2} at^{2}[/tex]

We have to express → a in terms of v and t.

On solving, we get -

Sin([tex]2n\pi x[/tex]) = 0.785

Sin([tex]2n\pi x[/tex]) = Sin ([tex]\frac{\pi }{4}[/tex])

2n[tex]\pi[/tex]x =  [tex]\frac{\pi }{4}[/tex]

x =  [tex]$\frac{1}{8n}[/tex]

According to the question, we have -

[tex]$v = \frac{1}{2} at^{2}[/tex]

[tex]$a=\frac{2v}{t^{2} }[/tex]

Hence, 'a' can be expressed in terms of 'v' and 't' as -

[tex]$a=\frac{2v}{t^{2} }[/tex]

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Answer:

b) 1.383

d) 2733

f) 41.429

h) 6317

j) 87.889

Step-by-step explanation:

Answer:

44

Step-by-step explanation:

Answer:

$44

Step-by-step explanation:

20% changes to 0.2

$55 x 0.2 = $11 ---> this is the sales discount

$55 - $11 = $44 ---> sale price

Answer:

2.4x+2.9

Step-by-step explanation:

Answer:

4.66666666667 to be exact

Step-by-step explanation:

divide 3 into 14

-NULL

Brainliest will be appreciated thank you!

The answer came as 2257 as listed above

Answer:

10

Step-by-step explanation:

1. Any number has a denominator of 1 so you have 6/1 and 8/2.

2. To add you need to make the denominators the same so multiply the 2 to the numerator and denominator of 6/1 which makes 12/2.

3. 12/2+8/2 is 20/2.

4. Simplify 20/2 by dividing the top and bottom by 2 to get 10/1.

Answer: 10

Answer:

the difference is 1/21

Step-by-step explanation:

2/3 equals 14/21 and 5/7 equals 15/21

Answer:

1 is equal

2 is greater

3 is greater

Step-by-step explanation:

2^3 x 2^5 is 32, and 2^5 is 32, meaning these are equal.

2^2 x 3^2 is 36, and 6^3 is 216, meaning 6^3 is greater.

2^3 x 3^2 is 72, and 6^2 is 36, meaning that 2^3 x 3^2 is greater.

Answer: (-2,1)

Step-by-step explanation:

When reflecting over the x-axis, you keep the x-axis and invert the y-axis.

Answer:

[tex] ➜- 8 - x + x = x - 4x + x[/tex]

[tex] ➜- 8 = - 2x[/tex]

[tex] ➜- \frac{8}{ - 2} = \frac{ - 2x}{2} [/tex]

[tex]➜x=4[/tex]

Answer:

I could only find a single semi-complete question on that paper due to the quality of the picture.  The carbon dioxide and water escape from the tube, because as gases, they do not have a definite shape or volume, and instead expand to fit whatever container they are in.

Hope it helps

Answer:

7y + t

Step-by-step explanation:

Answer:

A one solution

Step-by-step explanation:

Answer:

18/29

Step-by-step explanation:

The probability that a student chosen randomly from the class plays basketball or baseball is 18/29

The given parameters are:

The number of students that play basketball or baseball is:

Basketball or Baseball = Students - Neither

This gives

Basketball or Baseball = 29 - 11

Basketball or Baseball = 18

The probabilty is then calculated as:

P = Basketball or Baseball/Students

This gives

P = 18/29

Hence, the probability that a student chosen randomly from the class plays basketball or baseball is 18/29

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Answer:

see explanation

Step-by-step explanation:

Using the rule of exponents

[tex]a^{m}[/tex] × [tex]a^{n}[/tex] = [tex]a^{(m+n)}[/tex]

(a)

3 × a × 2 × b

= 3 × 2 × a × b

= 6ab

(b)

[tex]c^{5}[/tex] × c

= [tex]c^{(5+1)}[/tex]

= [tex]c^{6}[/tex]

(c)

2[tex]y^{4}[/tex] × 5y³

= 2 × 5 × [tex]y^{4}[/tex] × y³

= 10 × [tex]y^{(4+3)}[/tex]

=10[tex]y^{7}[/tex]

(d)

3gh² × 4g³h³

= 3 × 4 × g × g³ × h² × h³

= 12 × [tex]g^{(1+3)}[/tex] × [tex]h^{(2+3)}[/tex]

= 12[tex]g^{4}[/tex][tex]h^{5}[/tex]

Answer:

180

Step-by-step explanation:

Well, I'm not sure but maybe??

Answer:

Answer is 12

Step-by-step explanation:

f(g(-2))

=f((-2)^2+2)

=f(6)

=-1/2×6^2+5×6

=12

Answer:

Step-by-step explanation:

We know that the system of equations

a

1

​

x+b

1

​

y=c

1

​

a

2

​

x+b

2

​

y=c

2

​

has infinitely many solutions, if

a

2

​

a

1

​

​

=

b

2

​

b

1

​

​

=

c

2

​

c

1

​

​

Here, a

1

​

=2,b

1

​

=3,c

1

​

=4,a

2

​

=k+2,b

2

​

=6,c

2

​

=3k+2.

Therefore, the given system of equations will have infinitely many solutions, if

k+2

2

​

=

6

3

​

=

3k+2

4

​

⇒

k+2

2

​

=

6

3

​

 and  

6

3

​

=

3k+2

4

​

⇒

k+2

2

​

=

2

1

​

 and  

2

1

​

=

3k+2

4

​

⇒k+2=4 and 3k+2=8

⇒k=2 and k=2

⇒k=2

Hence, the given system of equations will have infinitely many solutions, if k=2.

Answer:

1. 6 yd

2. 32 oz

3. 8 fl oz

4. 10560 ft

5. 2.5 ton

6.

Step-by-step explanation:

I can't see the rest of 6

Answer:

40

Step-by-step explanation:

8x = 56

8x + 16 = 40

x = 3

8x = 24

x = 7

8x – 16 = 40

8(x – 2) = 40

Answer:

the length of side DF is 19

Step-by-step explanation:

you first need to find what x=

sides  AB=DF    AC=DE    BC=FE

so we can say that 3x+1=19

3x+1=19

-1        -1

3x=18

÷ by 3

x=6

then DF os 2x+7

so 2(6)+7

12+7=19

Answer:

he can make 4 fruitcups with the apples

Answer:

-4

Step-by-step explanation:

if a=-10 and b=-6

a-b=-10- -6

=-10+6 which can be written as

=6-10

=-4

since -and-is+

The value of expression a-b if a= -10 and b= -6 is -4.

An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division.

The given expression is a-b.

Here, a= -10 and b= -6

Substitute, a= -10 and b= -6 in the given expression, we get

a-b= -10-(-6)

= -10+6

= -4

Therefore, the value of expression a-b if a= -10 and b= -6 is -4.

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Answer:

$7.78

Step-by-step explanation:

140/18 = 7.78

Answer:

Hi

Step-by-step explanation:

I don't know bec we didn't learn this.. So.. Sorry

Answer:

52

Step-by-step explanation:

6+2+6=14

14*3=42

2*5(the five wasn't in the question but it's on the picture sooooo yeah)=10

42+10=52

Answer:

A

Step-by-step explanation:

I think it’s A

Answer:

It's A

Step-by-step explanation:

27‌ ‌ ‌ ‌ ‌ ‌ ‌‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌

Step-by-step explanation:

[tex] \\ 43 \: thousandths \: as \: decimal \: \ \\ = 0.043 \: [/tex]

Step-by-step explanation:

[tex]forty \: three \: thousandths \: \\ one \: thousadths \: = \frac{1}{1000} = 0.001 \\ \\ so \: for \: forty \: three \: thousandths \: \\ = \frac{43}{1000} \\ \\ = 0.043[/tex]