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Tpy6a [65]
3 years ago
12

How many three digit numbers have exactly two digits equal and the third different?

Mathematics
2 answers:
SOVA2 [1]3 years ago
8 0
The answer is 81 hope this helps! :D
ale4655 [162]3 years ago
4 0

Answer:

The answer should be 81. Hope this helps!

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The temperature went down by 12 degrees. (Or you could say it changed by -12 degrees)
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Read 2 more answers
ASAP
Phoenix [80]
81 is a counter example of the conditional statement given.

81 has factors other than itself, 1 and the square root of 81 which is 9.

81 has factors of 3 and 27 which are not listed.
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3 years ago
x2 + 8x + 6 (x2 + 8x + ) + 6 Erin was completing the square of the quadratic function in order to find the extreme value. What i
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C.

Step-by-step explanation:

The next step is to add (1/2 * 8)^2 = 4^2 = 16 to the 8x and subtract 16 from the + 6:

- to give (x^2 + 8x + 16) + 6 - 16 as the next step in the process.

The extreme minimum is  +6 - 16 = -10.

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2 years ago
Teddy is rolling a die and writing the number that shows. The collection of the data is with replacement. (True or False)
maks197457 [2]

Answer:

True

Step-by-step explanation:

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5 0
3 years ago
Which of the following is not equal to the other values? cos31.7° cos211.7° cos328.3° cos(-391.7°)
luda_lava [24]

Answer:

* cos 211.7 not equal the other values

Step-by-step explanation:

* Lets revise the angles in the four quadrant

- If the angle in the first quadrant is Ф, then the equivalent angles to

 it in the other three quadrant are

# 180° - Ф ⇒ 2nd quadrant (sin only +ve)

# 180° + Ф ⇒ 3rd quadrant (tan only +ve)

# 360° - Ф ⇒ 4th quadrant (cos only +ve)

# -Ф ⇒ 4th quadrant (cos only +ve)

# -180 + Ф ⇒ 3rd quadrant (tan only +ve)

# -180 - Ф ⇒ 2nd quadrant (sin only +ve)

# -360 + Ф ⇒ 1st quadrant (all are +ve)

* Lets solve the problem

∵ Ф = 31.7°

∵ cos 31.7 = +ve value

∵ 180° + Ф° = 180° + 31.7° = 211.7°

∵ cos (180° + Ф°) = - cos Ф° ⇒ cos (180° + Ф°) in the 3rd quadrant is

  same value as cos Ф but with -ve sign

∴ cos 211.7° = - cos 31.7°

∴ cos 31.7° ≠ cos 211.7°

∵ 360° - Ф° = 360° - 31.7° = 328.3°

∵ cos (360° - Ф°) = cos Ф° ⇒ cos (360° - Ф°) in the 4th quadrant has the

  same value and sign with cos Ф°

∴ cos 328.3° = cos 31.7°

∴ cos 31.7° = cos 328.3°

∵ -391.7° + 360° = -31.7° ⇒ more then clockwise turn by 31.7°

∵ cos (-Ф°) = cos Ф° ⇒ cos (-Ф°) in the 4th quadrant has the same value

  and sign with cos Ф°

∴ cos (-31.7°) = cos 31.7°

∴ cos 31.7° = cos (-390.7°)

* cos 211.7 not equal the other values

6 0
2 years ago
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