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Oxana [17]
3 years ago
5

The list of all factors for 21 is 1, 3, 7, and 21. true or false

Mathematics
2 answers:
zalisa [80]3 years ago
7 0
The answer is true. yea....
maxonik [38]3 years ago
6 0
Factors of 21 are : 1,3,7,21....yes, this is correct...true
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HELP ME <br> solve for the right triangle
VikaD [51]

Answer:

see explanation

Step-by-step explanation:

Using the cosine and tangent ratios in the right triangle

cos41° = \frac{adjacent}{hypotenuse} = \frac{VW}{VX} = \frac{7}{VX}

Multiply both sides by VX

VX × cos41° = 7 ( divide both sides by cos41° )

VX = \frac{7}{cos41} ≈ 9.3

-----------------------------------------------------------------------

tan41° = \frac{opposite}{adjacent} = \frac{WX}{VW} = \frac{WX}{7}

Multiply both sides by 7

7 × tan41° = WX, thus

WX ≈ 6.1

-------------------------------------------------------------------------

The sum of the 3 angles in a triangle = 180°

Subtract the sum of the given angles from 180° for ∠ X

∠ X = 180° - (90 + 41)° = 180° - 131° = 49°

3 0
3 years ago
The mean of the data set is 15.What number is missing? 9,12,16,18,23
maxonik [38]

The number 12 is missing in the data set.

<u>Step-by-step explanation</u>:

  • The numbers are 9,12,16,18,23.
  • The missing number is assumed to be 'x'

Mean = Sum of the integers / Total number of integers.

15 = (9+12+16+18+23+x) / 6

15 = (78+x) / 6

90 = 78+x

x = 90-78

x = 12

3 0
3 years ago
Whats the way to do 3+x&lt;7
Shkiper50 [21]
Try 3+x which would be 4 and 7 is greater then 4 because x by its self or and other variable is 1. hope this helped!

7 0
3 years ago
Rico walked for 3/10 mile. Then he walked for 24/100 mile. How far did he walk in all?
grigory [225]
First, Rico walked for 3/10 of a mile which is 30/100 of a mile.
Hen, Rico walked for 24/100 of a mile.
Then you add 24/100 and 30/100. 24+30/100 which is 54/100.
Answer=54/100 of a mile
4 0
4 years ago
Read 2 more answers
Help me plz I need help.
Sever21 [200]

Answer:

C

Step-by-step explanation:

The sum of the lengths of any two sides of a triangle is greater than the length of the third side.

4 0
3 years ago
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