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STALIN [3.7K]
3 years ago
6

13 is one third of a number m

Mathematics
1 answer:
Viefleur [7K]3 years ago
3 0
13 times 3=39
M=39
13 is 1/3 of 39
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An arithmetic sequence is - 1/2 , 1, 5/2 , 4, 11/2 , 7, ... . What is the general term of the sequence?
olasank [31]

Answer:

ADD 3/2

Step-by-step explanation:

-1/2 + 3/2 = 1

1+3/2= 1/1+3/2 = 2/2 + 3/2 =5/2

5/2 +3/2 = 8/2 = 4

4+3/2  = 8/2 +3/2 = 11/2

11/2 +3/2 =14/2 =7

4 0
4 years ago
Of 5 Sarah, Fiona and David share £40 in a ratio 3:3:2. How much money does each person get?​
Olin [163]

Answer:

15

15

10

Step-by-step explanation:

3/8 x £40 = £15 for Sarah

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6 0
3 years ago
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Korvikt [17]

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3 0
3 years ago
For the following exercises, evaluate the function at the indicated values: f (−3); f (2); f (−a); −f (a); f (a + h).
ser-zykov [4K]

Answer:

5. f(x) = -2x² + 3x  

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f(2) = -2(2)² + 3(2) = -2

f(-a) = -2(-a)² + 3(-a) = -2a² - 3a

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f(a + h) = -2(a + h)² + 3(a + h) = -2(a² + 2ah + h²) + 3a + 3h = -2a² - 4ah - 2h² + 3a + 3h

6. f(x) = 2|3x - 1|

f(-3) = 2|3(-3) - 1| = 2*10 = 20

f(2) = 2|3(2) - 1| = 2*5 = 10

f(-a) = 2|3(-a) - 1| = 2|-3a - 1|

-f(a) = -(2|3a - 1|) = -2|3a - 1|

f(a + h) = 2|3(a + h) - 1| = 2|3a + 3h - 1|

3 0
4 years ago
The scale on a map is 1 inch = 14 miles. The measurement between two cities on the map is 7 inches. What is the
Shkiper50 [21]
98 miles is the answer
3 0
3 years ago
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