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guajiro [1.7K]
3 years ago
8

Please hurry

Mathematics
2 answers:
weqwewe [10]3 years ago
8 0

Answer:

option 2

Step-by-step explanation:

A = 2πrh + 2πr²

A = 2πr ( h + r)

2πr ( h + r) = A

h+r=\frac{A}{2\pi r}\\\\h=\frac{A}{2\pi r}-r

NNADVOKAT [17]3 years ago
4 0

Answer:

(A/2πr)  -r =h

Step-by-step explanation:

A=2πrh +2πr^2

Subtract 2 pi r^2 from each side

A-2πrh=2πrh-2πr^2 +2πr^2

A-2πr^2= 2πrh

Divide each side by 2πr

A/2πr-2πr^2 /2πr = 2πrh/2πr

(A/2πr)  -r =h

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Answer:

$570

Step-by-step explanation:

I=PRT/100

I=$45.60,P=?,R=2%,T=4years

make P the subject of the formula

P=100I/RT

P=100x45.60/2x4

P=4560/8

P=$570

5 0
3 years ago
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translation followed by a rotation

Step-by-step explanation:

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4.
Reptile [31]

Answer:

c.) 7.5

Step-by-step explanation:

There is a part-to-whole relationship here.

2 customers : 8 minutes= ? customers : 30 minutes

                                         <em>or...</em>

2/8=x/30

Cross multiply:

8x=60

Divided both sides by 8:

x=60/8=7.5

I hope this helps!

8 0
3 years ago
7.
ollegr [7]

Answer:    The answer is either letter A or letter C

home / math / slope calculator

Slope Calculator

By definition, the slope or gradient of a line describes its steepness, incline, or grade.

Where

m — slope

θ — angle of incline

If the 2 Points are Known

Result

Slope (m) =  

ΔY

ΔX

=  

-1

5

= -0.2

θ =  

arctan( ΔY ) + 360°

ΔX

= 348.69006752598°

ΔX = 5 – -5 = 10

ΔY = -3 – -1 = -2

Distance (d) = √ΔX2 + ΔY2 = √104 = 10.198039027186

Equation of the line:

y = -0.2x – 2

or

y =  

- 1 x

5

– -2

When x=0, y = -2

When y=0, x = -10

...............................................................................................................................................

home / math / slope calculator

Slope Calculator

By definition, the slope or gradient of a line describes its steepness, incline, or grade.

Where

m — slope

θ — angle of incline

If the 2 Points are Known

Result

Slope (m) =  

ΔY

ΔX

=  

5

-1

= -5

θ =  

arctan( ΔY ) + 180°

ΔX

= 101.30993247402°

ΔX = -3 – -1 = -2

ΔY = 5 – -5 = 10

Distance (d) = √ΔX2 + ΔY2 = √104 = 10.198039027186

Equation of the line:

y = -5x – 10

When x=0, y = -10

When y=0, x = -2

...............................................................................................................................................

Input Data :

Point A  

(

x

A

,

y

A

)

= (3, 2)

Point B  

(

x

B

,

y

B

)

= (7, 10)

Objective :

Find the slope of a line that passes through points A and B.

Formula :

Slope

 

m

=

y

B

−

y

A

x

B

−

x

A

Solution:

Slope

 

m

=

10

−

2

7

−

3

=

8

4

m = 2

...............................................................................................................................................

Input Data :

Point A  

(

x

A

,

y

A

)

= (3, 2)

Point B  

(

x

B

,

y

B

)

= (7, 10)

Objective :

Find the slope of a line that passes through points A and B.

Formula :

Slope

 

m

=

y

B

−

y

A

x

B

−

x

A

Solution:

Slope

 

m

=

10

−

2

7

−

3

=

8

4

m = 2

Step-by-step explanation:    This is the picture, I graphed it

Center: (0, 0)

Angle: 0 rad

Opacity: 1

Width: 10

Height: 6.8

5 0
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jasenka [17]
75 litres of petrol would be required
4 0
3 years ago
Read 2 more answers
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