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Crazy boy [7]
3 years ago
11

If anyone could help me with this I'd be very thankful !

Mathematics
1 answer:
Mariana [72]3 years ago
6 0
60% = 0.6 = 3/5
25.5% = 0.255 = 51/200
90% = 0.9 = 9/10
33 1/3 = 0.3333 =
62.5% = 0.625 = 5/8
7.5% = 0.07 = 7/100

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The polygon below represents a regular octagon.
gayaneshka [121]

Answer:

a). x = 135°

b). y = 45°

c). z = 67.5°

Step-by-step explanation:

Since sum of interior angles of a regular polygon is represented by,

Sum of interior angles = (n - 2) × 180°

Here n = number of sides

For a regular octagon, n = 8

Sum of interior angles = (8 - 2) × 180° = 1080°

And measure of one interior angles = \frac{\text{Sum of interior angles}}{n}

                                                         x = \frac{1080}{8}

                                                         x = 135°

From the figure attached,

Angle C has been divided in 6 equal parts,

Therefor, m∠ECD = \frac{135}{6} = 22.5°

Since ∠ECD ≅ ∠CED,

m∠CED = 22.5°

Since m∠E = 135°

m∠FEC = 135 - 22.5 = 112.5°

In ΔFEC,

m∠FEC + m∠ECF + m∠CFE = 180°

112.5 + 22.5 + z = 180

z = 180 - 135

z = 45°

Similarly, in ΔCGF,

m∠CGF + m∠CFG + m∠GCF = 180°

(135 - y)° + (135 - z)° + 22.5° = 180°

270 - (y + z) + 22.5 = 180

292.5 - (y + 45) = 180

247.5 - y = 180

y = 247.5 - 180

y = 67.5°

3 0
3 years ago
Please awnser wuestion in image please
sineoko [7]

Answer:

D

Step-by-step explanation:

1/25 is the same thing as 5^{-2}. So, u wantn to find whcih answer choice does not equal that. You can use the exponent multiplication rule, where x^a times x^b equals x^a+b.

for example, answer choice A would be 5^(3+-5) which is 5^-2.

the only choice that does not equal 5^-2 is D because it equals 5^2

5 0
2 years ago
Read 2 more answers
A teacher reaches into a bag of game pleces containing 5 black pleces, 3 purple pleces, 1 orange plece, and 6 green pleces, He d
ElenaW [278]

Answer:

3/15

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Please help explanation if possible
expeople1 [14]

9514 1404 393

Answer:

  • steeper
  • up (4 units)

Step-by-step explanation:

When the equation of the line is in the form ...

  y = mx + b

the coefficient 'm' is the slope of the line, and the value 'b' is the y-intercept, the point on the y-axis where the line crosses.

We say the line is "steeper" when the magnitude of the slope is greater. Line B, with its slope of 7 will be steeper than line A, with its slope of 3.

  the new slope is steeper

__

The y-intercept of line A is -3. The y-intercept of line B is +1, so it crosses the y-axis above the point where line A crosses. One could say that line B is shifted up, when referring to the y-intercept.

3 0
3 years ago
PLEASE HELP ILL GIVE BRAINLIST
sdas [7]

Answer:

Its hard to explain but essentially the zero in the 10 and 100 place cancels out the decimal essentially

8 0
3 years ago
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