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3 years ago

Which of the following is a direct proportion? A. y=7x B. y=x+7 C. y=7x−7 D. y=7

Mathematics

1 answer:

AveGali [126]3 years ago

5 0

The answer is D) y=7

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Which of the following statements is not true?

bezimeni [28]

All of the above are true

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3 years ago

Simplify for a lot of points (1-sin^2x)(1-tan^2x)

notka56 [123]

1/sin^2x-1/tan^2x=
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= 1/sin^2x- cos^2x / sin^2x
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=1
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3 years ago

PLEASE HELP! write an expression ( simplified ) for the perimeter of the given figure

liraira [26]

Answer:

Step-by-step explanation:

2(3x-1)+2(6)

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3 years ago

Read 2 more answers

119. Beatrice decides to deposit $100 per month at the end of every month in a bank with an annual interest rate of 5.5% compoun

sveta [45]

Answer:

Beatrice will accumulate $1230.72 at the end of the year.

Step-by-step explanation:

We can write:

$(1+\frac{0.055}{12})=z$

$100=C$ for deposits

The first month would have only the deposit reflected in her balance, then, expanding some steps of the calculation would yield:

$S_{1}=C\\S_{2}=Cz + C\\S_{3}=Cz^{2}+Cz + C\\S_{n}=Cz^{n-1} +...+Cz+C$

A geometric series is given by:

$1+x+...+x^{m}=\frac{x^{m+1}-1}{x-1}$

Translating our series to the short form:

$S_{n}=C(\frac{z^{n}-1}{z-1} )$

plugin in the values for the 12 month gives:

$S_{12}=100(\frac{(1+\frac{0.055}{12})^{12} -1}{\frac{0.055}{12}})=1230.7169$

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3 years ago

Simplify (8 + 7i) + (2 –i)

inna [77]

Simplify (8 + 7i) + (2 –i)
answer:10+6i

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3 years ago