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Fudgin [204]
2 years ago
14

(x)=7x-3 and g(x)=x^2-4,find (f+g)(x)

Mathematics
1 answer:
defon2 years ago
5 0

Good morning ☕️

Answer:

<h2>x² + 7x - 7</h2>

Step-by-step explanation:

f(x)=7x-3 and g(x)=x²-4

(f+g)(x) = f(x) + g(x) = 7x - 3 + x²- 4

                              = x² + 7x - 7

_________________________

:)

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Answer:

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Step-by-step explanation:

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For concreatting a tower cement, sand, stones are in the ratio 1:2:4 For 144kg sand.. What amount of cement is required?
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Answer:

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Step-by-step explanation:

For concreatting a tower cement, sand, stones are in the ratio 1:2:4 For 144kg sand.. What amount of cement is required?

We are given the ratio

cement: sand:stones

= 1:2:4

The sum of proportion =

1 + 2 + 4 = 7

We are given the kg of sand = 144kg

Step 1

We find the total kg of cement, sand and stones = x

Using the proportion of sand,

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2/7 × x = 144kg

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Cross Multiply

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Step 2

The amount of cement required is calculated as:

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Therefore, 72kg of cement is required.

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