4 years ago

Simplify each expression -7x+4(1+x)

Mathematics

2 answers:

AysviL [449]4 years ago

8 0

Answer:

A. -3x+4

Step-by-step explanation:

nydimaria [60]4 years ago

3 0

Answer:

=-3x+4

Step-by-step explanation:

expand the brackets

=-7x+4+4x

then collect the like terms

=-3x+4

thats it

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Write 2350 million in standard form

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we know that

Standard Form is also known as Scientific Notation, is a method of writing numbers that accommodates value excessively large or small to be suitably written in Standard Decimal Notation

in this problem we have

$2,350\ million$

Remember that

$1\ million=1,000,000$

$2,350\ million=2,350*1,000,000=2,350,000,000$

convert to standard form

$2,350,000,000=2.35*10^{9}$

therefore

the answer is

$2.35*10^{9}$

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Step-by-step explanation:

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Dafna1 [17]

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If 8,a,b,27 are in geometric sequence, find the value of a and b.

wel

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a = 12 and b = 18

Step-by-step explanation:

Given that,

8,a,b,27 are in geometric sequence.

For a GP, the nth term is given by :

$a_n=ar^{n-1}$

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