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2 years ago

3. Which property of multiplication is shown 1. X = X (a) associative (b) commutative (c) distributive (d) identity

Mathematics

1 answer:

Agata [3.3K]2 years ago

4 0

Answer:

X = X is <u>Commutative Property of Multiplication</u>.

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Which figure has the same area as the parallelogram shown below? A. A triangle with a base of 4 mm and a height of 20 mm B. A tr

Arisa [49]

<h2>Answer: A trapezoid with bases of 6 mm and 14 mm and a height of 8 mm </h2>

The parallelogram in the figure has an area of $80mm^{2}$ , according to the following formula, which works for all rectangles and parallelograms:

$A_{parallelogram}=(b)(h)$ (1)

Where $b$ is the base and $h$ is the height

The<u> area of a triangle</u> is given by the following formula:

$A_{triangle}=\frac{1}{2}(b)(h)$ (2)

So, for option A:

$A_{triangle}=\frac{1}{2}(4mm)(20mm)=40mm^{2} \neq 80mm^{2}$

Now, the <u>area of a trapezoid </u>is:

$A_{trapezoid}=\frac{1}{2}(b_{1}+ b_{2})(h)$ (3)

For option B:

$A_{trapezoid}=\frac{1}{2}(15mm+25mm)(2 mm)=40mm^{2} \neq 80mm^{2}$

For option C:

$A_{trapezoid}=\frac{1}{2}(6mm+14mm)(8 mm)=80mm^{2}$ >>>>This is the correct option!

For option D:

$A_{rectangle}=(30mm)(8mm)=240mm^{2} \neq 80mm^{2}$

<h2>Therefore the correct option is C</h2>

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Answer:

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......

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2 years ago

Help me please. I need it rn

cricket20 [7]

Answer:

you can apply percentages knowledge and reverse percentages knowledge. you can look at the formulas and it will be dead easy.

Step-by-step explanation:

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2 years ago

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The volume V (in cubic feet) of a right cylinder with a height of 3 feet and radius r (in feet) is given by V=3πr2. Solve the fo

Kitty [74]

Answer:

$r=\sqrt{\frac{V}{3\pi}}\\\\r\approx 5.00\ ft$

Step-by-step explanation:

-The volume of a cylinder is given by the formula:

$V=3\pi r^2$

#We make r the subject of the formula:

$V=3\pi r^2\\\\r^2=\frac{V}{3\pi}\\\\r=\sqrt{\frac{V}{3\pi}}$

#We then substitute for the stated volume and solve for r:

$r=\sqrt{\frac{V}{3\pi}}, V=236\\\\\therefore r=r=\sqrt{\frac{236}{3\pi}}\\\\r=5.00404\approx\ 5.00\ ft$

Hence, the cylinder's radius is approximately 5.00 ft

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3 years ago

If $10,000 is invested in an account at 4.8% annual simple interest, how long will it take for the account balance

Lesechka [4]

10000+4.8%=10480
10480+4.8%=10983.04
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so 3 years

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3 years ago

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3. Which property of multiplication is shown 1. X = X (a) associative (b) commutative (c) distributive (d) identity​

3. Which property of multiplication is shown 1. X = X (a) associative (b) commutative (c) distributive (d) identity