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NeX [460]
3 years ago
15

1/a-1/b=1/c=1/d find the value of C , if a=1/2 , b=1/4 and d=-1/5

Mathematics
1 answer:
never [62]3 years ago
3 0

Answer:

c=2.22

Step-by-step explanation:

1/a- 1/b=1/c- 1/d

1/1/2- 1/1/4=1/c- 1/1/5

0.5-0.25=1/c- 0.2

0.25=1/c- 0.2

0.25+0.2=1/c

0.45=1/c

cross multiply

0.45×c=1

0.45c=1

divide both sides by 0.45

0.45c=1/0.45

c=2.22

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Assoli18 [71]

Answer: hay im back

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
What is the range of the function
alexandr1967 [171]

Answer: Choice B

Range = {-3, 1, 5}

============================================

Explanation:

The domain is the set of all possible input x values. The range is the set of all possible y outputs.

Plug in each x value from the domain, one at a time, to get its corresponding range y value.

--------------------

Start with x = -3

f(x) = 2x+3

f(-3) = 2(-3)+3

f(-3) = -6+3

f(-3) = -3

So -3 is in the range.

--------------------

Move onto x = -1

f(x) = 2x+3

f(-1) = 2(-1)+3

f(-1) = -2+3

f(-1) = 1

1 is also in the range

--------------------

Finally plug in x = 1

f(x) = 2x+3

f(1) = 2(1)+3

f(1) = 2+3

f(1) = 5

The value 5 is the final value in the range.

--------------------

All of those values form the set {-3, 1, 5} which is the complete range.

7 0
3 years ago
Find the ratio in simplest form.<br> 30:6
Norma-Jean [14]
5:1 divide both by 6

7 0
3 years ago
Read 2 more answers
Plsss answer this rlly need dont answer this for just points plsss :(
klio [65]

1)V=Ixwxh

=5 cm x 3 cm x 2 cm

=30 cm³

2)V=bxh

=(10m x 6m) x 4m

= 60 m² x4 m

3)V=Ixwxh

=3 cm x 3 cm x 3 cm =27 cm³

=240 m³

4 0
1 year ago
What is the volume of the rectangular pyramid shown belown?
Anna35 [415]

9514 1404 393

Answer:

  168 cubic inches

Step-by-step explanation:

The formula for the volume of a pyramid is ...

  V = (1/3)Bh

where B is the area of the base, and h is the height.

The base is a rectangle, whose are is given by the formula ...

  A = LW

  A = (8 in)(7 in) = 56 in²

Then the pyramid volume is ...

  V = (1/3)(56 in²)(9 in) = 168 in³

The volume of the pyramid is 168 cubic inches.

7 0
3 years ago
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