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Norma-Jean [14]
2 years ago
5

The quantity of a number plus 4, divided by 9

Mathematics
1 answer:
stira [4]2 years ago
8 0
This answer should be (X+4)/9
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The value of y varies directly as the square of x and y=36 when x=3. What is y when x=4?
MissTica

Answer: y = 64

Step-by-step explanation:

y <> x² ----------------------- 1

y = kx² ----------------------- 2

36 = 3²k

36 = 9k

K = 36/9

= 4.

To find y when x = 4, we substitute for x in equation 2

y = kx²

y = 4²k

y = 16 x 4

y = 64

6 0
3 years ago
The projected population of a certain ethnic​ group(in millions) can be approximated by ​p(t)equals=39.07 left parenthesis 1.021
user100 [1]

Answer:

  • a)  p(10) ≈ 48.10
  • b)  about 1.00 million/year

Step-by-step explanation:

a) Use t=10 in the given formula and do the arithmetic.

  39.07×1.021^10 ≈ 48.0951 ≈ 48.10 . . . millions

__

b) The derivative of p(t) is ...

  p'(t) = p(t)·ln(1.021) ≈ 0.8120·1.021^t

  p'(10) ≈ 0.99954 ≈ 1.00 . . . . millions per year

5 0
3 years ago
20. The sum of two numbers in thirteen, and the sum of<br> their squares is 89. Find the two number
Gala2k [10]

Answer:

x = 8 and x = -5

Step-by-step explanation:

7 0
3 years ago
Pierre is rowing his kayak on a lake. He moves 1 à miles in 18 minutes. At this rate, how far would he move in 30 minutes ?
Neporo4naja [7]

Answer:

Step-by-step explanation:

if Pierre moves 1 mile in 18 minutes

1 miles..............................18 minutes

? miles...............................30 minutes

the number of miles=30/18=10/6=1.66 miles

5 0
3 years ago
Find the measures of two supplementary
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Please find attached photograph for your answer. Hope it helps. Please do comment.

6 0
2 years ago
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