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3 years ago

6

What is the most accurate representation of the area of a plot measuring 11.7 cm by 15.4 cm?

1 answer:

Agata [3.3K]3 years ago

5 0

The answer is C. First, the area of the plot should be the multiplication of the two side lengths, so 11.7 * 15.4=180.18. However, we have to look at the significant digits to decide to what digit should we round the answer to. Since both 11.7 and 15.4 are accurate to the tenths digit, 180.18 should also be so, so we should round it to 180.2.

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What is the distance between the points (11,19) and (11,-6) in the coordinate plane?

IrinaK [193]

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Step-by-step explanation:

distance with negatives is still an addition but you have to turn the negative into a positive to get the answer.

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1 year ago

See attachment for help.

Tema [17]

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2 years ago

Expanding Logarithmic Expressions In Exercise, use the properties of logarithms to rewrite the expression as a sum, difference,

Leya [2.2K]

Answer: $\dfrac{1}{3}[\ln (x+1)+\ln(x-1)]$

Step-by-step explanation:

Properties of logarithm :

$\log (ab)= \log a+\log b$
$\log(\dfrac{a}{b})=\log a-\log b$
$\log a^n= n\log a$

The given expression in terms of Natural log : $\ln (x^2 - 1)^{\frac{1}{3}}$

This will become $\dfrac{1}{3}\ln (x^2 - 1)$ [ By using Property (3)]

$=\dfrac{1}{3}\ln (x^2-1^2)$

$=\dfrac{1}{3}\ln ((x+1)(x-1))$ [ $\because a^2-b^2=(a+b)(a-b)$ ]

$=\dfrac{1}{3}[\ln (x+1)+\ln(x-1)]$ [ By using Property (1)]

Hence, the simplified expression becomes $\dfrac{1}{3}[\ln (x+1)+\ln(x-1)]$ .

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2 years ago

The human heart beats approximately 1.152 • 10^5 times per day. Approximately how many times does the heart beat in a year

Paraphin [41]

42,048,000, first solve the equation then multiply it by the number of days in a year

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2 years ago

Which of the following is the cubic parent function?

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Generally, y = x³ is considered to be the parent function of all cubics. That choice corresponds to ...
B. y = x^3

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