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DiKsa [7]
2 years ago
9

Use the formula d=rt Find t for r = 48.3 m/h and d = 545.79 m.

Mathematics
1 answer:
djyliett [7]2 years ago
8 0
D = 545.79
r = 48.3

Plug in numbers to corresponding variables

545.79 = t(48.3)

Isolate the t, divide 48.3 from both sides

(545.79)/48.3 = 48.3t/48.3

t = 545.79/48.3
t = 11.3

t = A) 11.3 h

hope this helps
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Find a cubic function f(x) = ax^3 + bx^2 + cx + d that has a local maximum value of 3 at x = −3 and a local minimum value of 0 a
Ahat [919]

Answer:

f(x) = (3x³ + 9x² - 27x + 15)/32

Step-by-step explanation:

f'(x) = 3ax² + 2bx + c

Maximum or minimum: f'(x) = 0

Maximum: f'(-3) = 0 and f(-3) = 3

Minimum: f'(1) = 0 and f(1) = 0

f'(-3) = 0 leads 27a - 6b + c = 0       (1)

f'(1) = 0 leads 3a + 2b + c = 0           (2)

f(-3) = 3 leads -27a + 9b -3c + d = 3    (3)

f(1) = 0 leads a + b + c + d = 0        (4)

(1) - (2):   24a - 8b = 0, or 3a - b = 0, b = 3a

(3) - (4)   -28a + 8b - 4c = 3    (5)

(1) * 4 + (5):  80a - 16b = 3,

use b = 3a, get 80a - 16*3a = 3, 32a = 3, a = 3/32, b = 3a = 9/32

From (2): c = -3a - 2b = -9/32 - 18/32 = -27/32

From (4): d = -a - b - c = -3/32 - 9/32 + 27/32 = 15/32

So

f(x) = (3x³ + 9x² - 27x + 15)/32

3 0
2 years ago
How do I get the answer to this
Crank
The answer to this question is 8.6 or c
5 0
3 years ago
Please Help Me! Will mark you Brainliest!
Readme [11.4K]

Answer:

B. (11, -2)

Step-by-step explanation:

x.) 4 + 7 = 11

y.) -10 + 8 = -2

6 0
2 years ago
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Is y=-3 a linear equation?
Stels [109]
If degree of variable is one then eq. is linear 
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7 0
3 years ago
Pls i cannot fail this !
FrozenT [24]
A= 3.14* 12^2
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= 452.16cm^2
3 0
2 years ago
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