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horrorfan [7]
3 years ago
12

Make x subject of the formula

Mathematics
1 answer:
harina [27]3 years ago
6 0

Answer:

{ \bf{1.}} \\ { \tt{ \frac{a}{x}  +  \frac{b}{x} = 1 }} \\{ \boxed { \tt{x = a + b}}} \\  \\ { \bf{2.}} \\{ \tt{ax + ab = c}} \\  { \boxed{ \tt{x =  \frac{c - ab}{a} }}}

{ \bf{1.}} \\ { \tt{ \frac{a}{x}  +  \frac{b}{x} = 1 }} \\{ \boxed { \tt{x = a + b}}} \\  \\ { \bf{2.}} \\{ \tt{ax + ab = c}} \\  { \boxed{ \tt{x =  \frac{c - ab}{a} }}} \\  \\ { \bf{3.}} \\ { \tt{ax - bx = bc )}} \\ { \boxed{ \tt{x =  \frac{bc}{a - b} }}} \\  \\ { \bf{4.}} \\ { \tt{ab = cx + ax}} \\ { \boxed{ \tt{x =  \frac{ab}{c + a} }}} \\  \\ { \bf{5.}} \\ { \tt{ \frac{x}{2a} +  \frac{x}{3a}  = b }} \\{ \tt{x(3a + 2a) = 6 {a}^{2}b }}  \\ { \boxed{ \tt{x =  \frac{6 {a}b }{5} }}} \\  \\ { \bf{6.}} \\ { \tt{ax - bx = bc - bx}} \\ { \boxed{ \tt{x =  \frac{bc}{a} }}}

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A
Gnesinka [82]

Answer:

A: 779 cm²

B: 1837 cm²

Step-by-step explanation:

For both problems, use the formula for surface area of a cylinder:

SA = 2πr² + 2πrh

2πr² is the two bases.

2πrh is the curved surface.

<u>PROBLEM A</u>

"the cylinder is 60 cm long" is h = 60.

If given diameter, you can find "r" by dividing it by 2. d = 2r

Given d = 4, then r = 2.

SA = 2πr² + 2πrh

SA = 2π2² + 2π2(60)

SA = 8π + 240π               Add

SA = 248π                       Exact answer

SA ≈ 779.114978             Answer on calculator

SA ≈ 779           Rounded answer

Remember to include the units.

The surface area is about 779 cm².

<u>PROBLEM B</u>

"80 cm long" h = 80.

"circumference of 22 cm". C = 22. Remember C = 2πr. Find "r".

C = 2πr

22 = 2πr

11 = πr

r ≈ 11/π

SA = 2πr² + 2πrh

SA = 2π(11/π)² + 22(80)       Substitute 2πr with the circumference.

SA ≈ 1837.030992            Answer on calculator

SA ≈ 1837               Rounded answer

Remember to include the units.

The surface area is about 1837 cm².

7 0
4 years ago
Which inequality is shown on the graph?
GalinKa [24]

Answer:

y <= -2x + 1

Step-by-step explanation:

The one that is selected is correct.

8 0
3 years ago
Five children have to form a queue. In how many different ways can they be arranged?
Paladinen [302]

Answer:

120 different ways

The total number of ways to do this is the product because of the fundamental counting principle[1]. So 5x4x3x2x1 = 5! (read as “5 factorial”[2]) = 120 different ways to line up those 5 people. Five people lining up essentially means 5 people sorting into 5 positions.

8 0
3 years ago
Find the range of these sets of data -2,9,-1,-2000,-6000​
klio [65]

Step-by-step explanation:

the given data is in ascending order=9,-1,-2,-2000,-6000

rang = 9-(-6000)

( from above photo it continue )

5 0
3 years ago
(no links pls) find the value of m
Nina [5.8K]

Answer:

D.

<P= 5

I hope this helps:)

6 0
3 years ago
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