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3 years ago

A. Find the value of x that maximizes the area of the figure.

Mathematics

1 answer:

amm18123 years ago

5 0

Step-by-step explanation:

the area is

$A=\frac{(12+12-4x)(x+2)}{2}\\=2(6-x)(x+2)\\=-2x^2+8x+24\\=-2(x^2-4x+4)+32\\=-2(x-2)^2+32$

will max if

a. x = 2

and the max area is

b 32

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When r=42, what is the value of 3r-3^3

MrRa [10]

126-27 = 99, hope this helps

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2 years ago

Randall has an account balance of $675.54 in a savings account that earns interest at a rate of 2.5% compounded twice a year. If

Alex_Xolod [135]

To calculate amount accrued after a given period of time we use the compound interest formula: A= P(1+r/100)∧n where A i the amount, P is the principal amount, r is the rate of interest and n is the interest period.
In the first part; A= $ 675.54, r= 1.25% (compounded semi-annually) and n =22 ( 11 years ), hence, 675.54 = P( 1.0125)∧22
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Part 2
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3 years ago

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Ne4ueva [31]

Answer:

$y = \sqrt{85}$

Step-by-step explanation:

(11)²=(6)²+ (y)²

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y² =121 –36

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3 years ago

Please help! Find the value of c in the isosceles trapezoid.

nadezda [96]

Answer:

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Step-by-step explanation:

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2 years ago

For the scientific notation, write the standard form: 5.61 x 102

Alekssandra [29.7K]

I believe the exponential form above is 5.61 x $10^{2}$

Answer:

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Step-by-step explanation:

A "scientific notation" is being used in order to express large numbers in its simplest form. This is commonly used in careers that use Mathematics very often like engineers or scientists because it makes their computation easier.

The "standard form" refers to the standard or traditional way of writing the numbers.

In order to get the standard form above, you have to check the "power of the number 10." The exponent above is 2. This means that you have to move the decimal point of 5.61 to the right twice. So, the answer is 561.

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3 years ago