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statuscvo [17]
3 years ago
5

What is t²=81. thanks!!

Mathematics
1 answer:
seraphim [82]3 years ago
6 0

Answer:

t= 9, t= -9

Step-by-step explanation:

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What is the awnser to -9xt4y=-17 9x-6y=3
erma4kov [3.2K]

Solve first to find y and -9+9 =0

-9x+4y=-17

9x-6y=3


2y= -14


Y= -14/2

Y=-7

Substitute your y answer into first equation solve to find x .

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-9x= 11

X= 11/-9

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So answer is (-1.2222, -7)

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4 years ago
Miss Banks has £2,000 in her bank account. She receives 5% compound interest per year. How much will she have in her bank accoun
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3 years ago
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A motorboat left a harbor and traveled to an island at an average rate of 13 knots. The average speed on the return trip was 10
vlada-n [284]

Answer:

The distance between harbor & the island D = 72.12 km

Step-by-step explanation:

Let the total distance between harbor & island = D

Motor boat going to the island at speed S_{1} = 13 knots = 24 \frac{km}{hr}

Return speed of the motorboat S_{2} = 10 knots = 18.52 \frac{km}{hr}

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D (\frac{1}{24} + \frac{1}{18.52} ) = 6.9

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⇒ D = 72.12 km

This is  the distance between harbor & the island.

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What is the slope of a line parallel to the line whose equation is 2x-y=-7. Fully reduce your answer
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Answer:

mother answer would be mparellel=2

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Answer:

The answer is A.

Step-by-step explanation:

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