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3 years ago

What are the terms in the expression 7x+4y+1

Mathematics

2 answers:

mixas84 [53]3 years ago

7 0

The answer is D, terms are anything separated by and addition or subtraction sign

Solnce55 [7]3 years ago

4 0

Answer: Option 'd' is correct.

Step-by-step explanation:

Since we have given that

$7x+4y+1$

Since there are 3 terms in the expression:

First term is 7x.

A term x with coefficient 7.

Second term is 4y.

A term y with coefficient 4.

Third term is 1 i.e constant term.

So, the respective three terms would be 7x, 4y, and 1.

Hence, Option 'd' is correct.

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Find S5 for a geometric series for which a1=81 and r=1/9.

Minchanka [31]

ANSWER

$S_5=91\frac{10}{81}$

EXPLANATION

The sum of the first $n$ terms of a geometric sequence is given by;

$S_n=\frac{a_1(1-r^n)}{1-r} ,-1$

Where $n$ , is the number of terms and $a_1$ is the first term.

When $n=5$ , we have $a_1=81$ , we get;

$S_5=\frac{81(1-(\frac{1}{9})^5)}{1-\frac{1}{9}}$

$S_5=\frac{81(1-\frac{1}{59049})}{1-\frac{1}{9}}$

$S_5=\frac{81(\frac{59048}{59049})}{\frac{8}{9}}$

$S_5=\frac{7381}{81}$

$S_5=91\frac{10}{81}$

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3 years ago

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Mashcka [7]

Answer:

Step-by-step explanation:

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1 year ago

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Cloud [144]

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