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3 years ago

Need help with this please I am in math class

Mathematics

1 answer:

Tpy6a [65]3 years ago

7 0

Answer:

256.8

Step-by-step explanation:

the tenths place is the first number after the decimal.

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Larry Mitchell invested part of his $25,000 advance at 2% annual simple interest and the rest at 3% annual simple interest. If h

alexandr402 [8]

Answer:

$1000 at 3%
$24000 at 2%

Step-by-step explanation:

Let x represent the amount invested at 3%. Then the total interest earned is ...

0.03x +0.02(25000 -x) = 510

0.01x = 10 . . . . . . . . . . . . subtract 500, collect terms

x = 1000

Mitchell invested $1,000 at 3% and $24,000 at 2%.

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2 years ago

1) I can buy 18 bananas for $4.50. If I have $20 how

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Answer:

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3 years ago

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Which of the binomials below is a factor of this trinomial 3x^2+18-21

KengaRu [80]

Answer:

Step-by-step explanation:

you will get 3(x-1)×(x+1) you can get the 3 and x by itself then it would be x+3

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3 years ago

How do you round 0.90 to the thousandths place

valentina_108 [34]

Move the decimal to right 3 times

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3 years ago

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A rectangle with a length of L and a width of W has a diagonal of 10 inches. Express the perimeter P of the rectangle as a funct

KatRina [158]

<h2>Answer:</h2>

The expression which represents the perimeter P of the rectangle as a function of L is:

$Perimeter=2(L+\sqrt{100-L^2})$

<h2>Step-by-step explanation:</h2>

The length and width of a rectangle are denoted by L and W respectively.

Also the diagonal of a rectangle is: 10 inches.

We know that the diagonal of a rectangle in terms of L and W are given by:

$10=\sqrt{L^2+W^2}$

( Since, the diagonal of a rectangle act as a hypotenuse of the right angled triangle and we use the Pythagorean Theorem )

Hence, we have:

$10^2=L^2+W^2\\\\i.e.\\\\W^2=100-L^2\\\\W=\pm \sqrt{100-L^2}$

But we know that width can't be negative. It has to be greater than 0.

Hence, we have:

$W=\sqrt{100-L^2}$

Now, we know that the Perimeter of a rectangle is given by:

$Perimeter=2(L+W)$

Here we have:

$Perimeter=2(L+\sqrt{100-L^2})$

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3 years ago