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stepan [7]
3 years ago
11

Annie says the two expressions are equalized. Is she correct? Explain using different strategies -3x+6 and 3(-x -2).

Mathematics
1 answer:
borishaifa [10]3 years ago
7 0

Step-by-step explanation:

By using Distributive Property on 3(-x - 2),

3(-x - 2) = (3)(-x) + (3)(-2) = -3x - 6.

Since -3x - 6 =/= -3x + 6,

they are not equalized.

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*trigonometry and area.*
soldier1979 [14.2K]

Answer:

<u>The correct answer is that the area of the regular octagon is 309 cm²</u>

Step-by-step explanation:

There are several formulas for calculating the area of a regular octagon. We will use this one for solving this question because it does not require additional information .

Area = (2 * s²)/tan 22,5°

s = 8 cm

Replacing with the real values, we have:

Area = (2 * 8²)/tan 22,5°

Area = 2 * 64/0.4142

Area = 128/0.4142

<u>Area = 309 cm² (Rounding to the nearest tenth)</u>

6 0
3 years ago
9x10^7 is how many times as large as 3x10^-2
lianna [129]

Answer:

3000000000 times bigger

Step-by-step explanation:

5 0
3 years ago
When h has the value 5 calculate 6h+9
jonny [76]
The answer is 39 because 6 times 5 is 30. 30 plus 9 is 39. :)
6 0
3 years ago
Read 2 more answers
Meridith runs at a rate of 190 meters per minute. use the formula d= r times t to find how far she runs in 6 minutes.
Mariulka [41]
D= r×t
D= 190×6
D= 1140 meters
6 0
3 years ago
A stack of round crackers are in the shape of an oblique cylinder. The diameter of each cracker is 6 centimeters and the height
tekilochka [14]

Answer: 294cm

Step-by-step explanation:

The volume of a oblique cylinder is given by:

Volume= πr^2h

where

π = 3.14

r = radius

h = height

Radius= diameter/2 = 6/2 = 3

We have all the values, so we put it in the formulae so we can get the answer.

Volume= πr^2h

= 3.14 × 3 × 3 × (0.4 × 26)

= 294cm

8 0
3 years ago
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