3 years ago

A square rug has an area of 46 ft2.

Mathematics

1 answer:

7nadin3 [17]3 years ago

3 0

Sqrt of 46 squared feet = 6.78 ft

One length is 6.8 ft
Answer is D

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What is the product of the binomials (3x+1) (2x-4)

Vlad1618 [11]

Answer:

$6x^{2} -10x - 4$

Step-by-step explanation:

$6x^{2} - 12x + 2x -4$

$6x^{2} -10x - 4$

4 0

2 years ago

Read 2 more answers

Find S^20 if the series 1 + 1.1 ..... is a (a) arithmetic (b) geometric

quester [9]

I'm guessing S^20 is actually referring to the 20th partial sum $S_{20}$ , with

$S_{20}=1+(1+1\times0.1)+(1+2\times0.1)+\cdots+(1+18\times0.1)+(1+19\times0.1)$

in the arithmetic case, and

$S_{20}=1+1.1+1.1^2+\cdots+1.1^{18}+1.1^{19}$

in the geometric case.

(a) Combining like terms, we have

$S_{20}=20+0.1(1+2+\cdots+18+19)$

and invoking the formula

$1+2+\cdots+(n-1)+n=\dfrac{n(n+1)}2$

we end up with

$S_{20}=20+0.1\dfrac{19\times20}2=39$

(b) Multiply $S_{20}$ by 1.1, then subtract this from $S_{20}$ :

$1.1S_{20}=1.1+1.1^2+1.1^3+\cdots+1.1^{19}+1.1^{20}$

$S_{20}-1.1S_{20}=-0.1S_{20}=1-1.1^{20}$
$\implies S_{20}=\dfrac{1.1^{20}-1}{0.1}\approx57.275$

7 0

3 years ago

um am playing a game i forgot the math anwser the qusitoin says that the sum is 9 and thier diffrince is 1 what are the two numb

Virty [35]

Answer:

Step-by-step explanation:

All you have to do it subtract 9 from 1 than that's it your answer.

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2 years ago

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Lostsunrise [7]

Answer:A

Step-by-step explanation:

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2 years ago

In parallelogram DEFG if m< GDE=50° find m

spin [16.1K]

Answer:

130°

Step-by-step explanation:

180-50=130°

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2 years ago