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musickatia [10]
2 years ago
10

Find the area of the triangle,

Mathematics
1 answer:
Alenkasestr [34]2 years ago
8 0

Answer:

114.75

Step-by-step explanation:

  • 6x3=18
  • 8x10=80
  • 8.5
  • Add all together, you get = 229.5
  • Divided by 2 you get = 114.75
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Anna35 [415]
X=121
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4 0
3 years ago
A bag contains 10 red balls, 5 blue balls and 7 green balls. Find the probability of selecting at random
Masteriza [31]

Answer:

Probably red ball because it has higher amount

4 0
2 years ago
Read 2 more answers
I need help with #47 to #50 ASAP…. Please help me with it
Ksenya-84 [330]

Step-by-step explanation:

a triangular number n is the sum of all natural numbers <= n.

t1 = 1

t2 = 1+2 = 3

t3 = 1+2+3 = 6

t4 = 1+2+3+4 = 10

...

so,

tn = tn-1 + n

47.

1×8 + 1 = 9 is a square number.

3×8 + 1 = 25 is a square number

6×8 + 1 = 49 is a square number

10×8 + 1 = 81 is a square number

48.

1/3 = 0 remainder 1

3/3 = 1 remainder 0

6/3 = 2 remainder 0

10/3 = 3 remainder 1

15/3 = 5 remainder 0

21/3 = 7 remainder 0

28/3 = 9 remainder 1

so, there seems to be a pattern 1 0 0 1 0 0 1 0 0 1 ...

49.

1/4 = 0 remainder 1

4/4 = 1 remainder 0

9/4 = 2 remainder 1

16/4 = 4 remainder 0

25/4 = 6 remainder 1

36/4 = 9 remainder 0

49/4 = 12 remainder 1

so, there seems to be a pattern 1 0 1 0 1 0 1 0 1 0 1 ...

50.

polygonal numbers is the real name for this.

the formula for dimensions = 5 is

(3n² − n)/2

for dimensions = 6 it is

2n² - n

so, dimensions=5 (and therefore dividing also by 5) we get the remainders

1/5 = 0 remainder 1

5/5 = 1 remainder 0

12/5 = 2 remainder 2

22/5 = 4 remainder 2

35/5 = 7 remainder 0

51/5 = 10 remainder 1

70/5 = 14 remainder 0

92/5 = 18 remainder 2

117/5 = 23 remainder 2

145/5 = 29 remainder 0

here the pattern is 1 0 2 2 0 1 0 2 2 0 1 0 2 2 0 ...

dimensions=6 (and therefore dividing also by 6) we get the remainders

1/6 = 0 remainder 1

6/6 = 1 remainder 0

15/6 = 2 remainder 3

28/6 = 4 remainder 4

45/6 = 7 remainder 3

66/6 = 11 remainder 0

91/6 = 15 remainder 1

120/6 = 20 remainder 0

153/6 = 25 remainder 3

190/6 = 31 remainder 4

231/6 = 38 remainder 3

276/6 = 46 remainder 0

325/6 = 54 remainder 1

here the pattern is 1 0 3 4 3 0 1 0 3 4 3 0 1 0 3 4 3 0 ...

8 0
3 years ago
While taking inventory if his pastry shop Noah realize that he had 4 7/8 boxes of baking powder yesterday but the supply is now
Nuetrik [128]

Answer:

4 3/8

Step-by-step explanation:

4 and 7/8 - 1/2 = 4 and 7/8 - 4/8 = 4 and 3/8 of a box more

8 0
2 years ago
Simplify -6 1/4 - (-2 1/8)
OLEGan [10]
- 6   \frac{1}{4}  +  2  \frac{1}{8}

- 6   \frac{1}{4}  -  (- 2  \frac{1}{8}  )

(-6 + 2 ) + ( -\frac{1}{4}  +   \frac{1}{8} ) )

(-4) + ( - \frac{1}{8})

- 4  \frac{1}{8}
6 0
2 years ago
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