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pshichka [43]
4 years ago
15

Need help I don’t understand

Mathematics
1 answer:
trapecia [35]4 years ago
6 0

Answer:

see below

Step-by-step explanation:

(2 · x) · 6 = 2 · (x · 6) → Associative property of multiplication, this property states that (a · b) · c = a · (b · c), basically, it doesn't matter what order you multiply in, the result will always be the same.

3(3x + 2) = 9x + 6 → Distributive Property, this property states that a(b + c) = a · b + a · c.

(7 + 1) + 5 = 5 + (7 + 1) → Commutative property of addition, this property states that a + b = b + a which means that you can "flip" or "switch the positions of" the quantities being added and you will still get the same result.

(7 · x · 3) = (7 · 3 · x) → Commutative property of multiplication, just like the commutative property of addition, this states a · b = b · a, in other words, you can "flip" or "switch the positions of" the quantities being multiplied and you will get the same result.

(9 + 2) + 3 = 9 + (2 + 3) → Associative property of addition, just like the associative property of multiplication, this property states that (a + b) + c = a + (b + c), in other words, it does not matter which order you add in, the result will always be the same.

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Answer:$168.00

With original price $240 and 30% discount,

Price after discount:<u> $168.00</u>

You saved: $72.00

3 0
3 years ago
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Afteer visiting Washington, D.C., Joey Green wanted to make a scale model of the Washington Monument. The actual
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Answer:

Step-by-step explanation:

height of monument = 555 feet

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So, 25 feet = 1 inch

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6 0
3 years ago
A circular mirror has a diameter of 12 inches. A circular frame that is 3 inches wide surrounds the mirror. What is the combined
soldi70 [24.7K]

Answer:

176.71 in^{2}

Step-by-step explanation:

The equation to use to find the radius of a circle is r = \frac{d}{2}

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First, add 3 inches to the diameter of 12 inches. You will get 15 inches.

Second, you will want to find the radius. Substitute 15 for d. Solve to get the radius.

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The radius is 7.5 inches.

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8 0
3 years ago
Please answer thanks
mamaluj [8]

Answer:

Step-by-step explanation:

V= ?\\r = 2\\h = 5\\\pi = 3.14\\\\V = \frac{1}{3} \pi*r^{2} *h\\\\V = \frac{1}{3} *3.14*2^{2} *5\\\\V= \frac{1}{3} *12.56*5\\\\V=  \frac{1}{3}* 62.8\\\\V = 20.93333333\\\\\\V = 20.93

In terms of pi

V= ?\\r = 2\\h = 5\\V = \frac{1}{3} \pi*r^{2} *h\\\\V= \frac{1}{3} *\pi*2^{2} *5\\\\V = \frac{1}{3} \pi*20\\V=  6.67\pi\\

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3 years ago
20 points!!!! What number needs to be added to both sides of the equation in order to complete the square?
shusha [124]
You would add 16 to both sides 
3 0
3 years ago
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