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svet-max [94.6K]
3 years ago
11

Expand and combine like terms. (7b^5-4b)(7b^5+4b)=

Mathematics
1 answer:
adoni [48]3 years ago
7 0

Answer:

49b^10 -16b^2

Step-by-step explanation:

(7b^5)^2 -(4b)^2=

49b^10 - (4b)^2=

49b^10 - 16b^2

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3/7 of which is 2 1/14
mash [69]

Answer:

4 and 5/6; 29/6.

Step-by-step explanation:

3/7 of x is 2-1/14.

(3/7)x = 29/14

x = (29/14) * (7/3)

x = (29/2) * (1/3)

x = 29/6

3/7 of 4 and 5/6 is 2 1/14.

Hope this helps!

3 0
3 years ago
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The price of an item has been reduced by 20%. The original price was $55. What is the price of the item now?
STatiana [176]

Answer:

The price is now $44

Step-by-step explanation:

The original price is $55

The discount percent is20%

Calculate the savings: 20% of $55 = $11

Subtract the savings from the original price to get the sale price: $55 - $11 = $44

5 0
3 years ago
Can someone PLEASE help me with questions #5 and 6
Hatshy [7]

Domain={8,9}

Range = { -3,-4,-6,-9}

No relation is not function as elements in domain are related to more than one element of codomain

5 0
4 years ago
Help I don’t understand this ‍♀️
irina [24]
Hello there!
Point A is (-4,2)
Point B is (3,5)
Point C is (-2,-4)
Point D is (-3,1)
Point E is (0,-2)
6 0
3 years ago
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If the diameter of an entire coconut is 5 inches, and the coconut meat is 1 inch thick, then there is room for approximately (bl
svetoff [14.1K]
The answer is 14.137 cubic inches.

For this case, the radius of whole coconut is 2.5 inches (which is 5 inches / 2).
You have to subtract the thickness of the coconut from this radius for you to get the volume of the space for coconut milk.

new radius = 2.5 - 1 = 1.5 inches

Volume = (4/3)(pi)(r^3)
= (4/3)(pi)(1.5^3)
= 14.137 cubic inches
6 0
3 years ago
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