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Burka [1]
3 years ago
7

Solve the equation 9x^2 - 64= 0 9x^2 + 64= 0

Mathematics
1 answer:
My name is Ann [436]3 years ago
4 0

Answer:

x1= - 8/3 , x2= 8/3

Step-by-step explanation:

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How do I solve for c​
MrMuchimi

Answer:

c = 13

Step-by-step explanation:

pythogoras theorem

a² + b² = c²

5² = 25

12² = 144

25 + 144<em> </em>= 169

√169 = 13

c = 13

4 0
3 years ago
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An item is priced at $80. It is on sale for 45% off. What is the sale price?
ryzh [129]

Answer:

$44

Step-by-step explanation:

To get 45% of something, first multiply it by 0.45 or 45%:

80x0.45=36

Now subtract that from the original price of $80 to get your answer:

80-36=44

The answer is the sale price is $44

6 0
3 years ago
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what key feature(s) can be easily identified from factored form? explain how each key feature is related to the roller coaster.
Ulleksa [173]

Answer:

Step-by-step explanation:

With a factor of (t - 1) we know that zero (ground level) is reached at 1 second from an initial height of (0 - 1)(0 - 1)(0 - 11)(0 - 13)/3 = -1•-1•-11•-13 / 3 = 47⅔ meters at t = 0

As we have <em>two </em>factors of (t - 1) we know the track does not go underground at t = 1, but rises again.

At t = 11 seconds, the car has again returned to ground level, but as we only have a single factor of (t - 11) the car plunges below ground level and returns to above ground level at t = 13 seconds due to the single factor of (t - 13)

we can estimate that the car is the deepest below ground level halfway between 11 and 13 s, so at t = 12. At that time, the depth will be about (12 - 1)(12 - 1)(12 - 11)(12 - 13) / 3 = -(11²/3) = - 40⅓ m.

we can estimate that the car is the highest above ground level halfway between 1 and 11 s, so at t = 6s. At that time, the height will be about (6 - 1)(6 - 1)(6 - 11)(6 - 13) / 3 = 5²•-5•-7 / 3 = 291⅔  m.

It's obvious that the roller coaster car had significant initial velocity at t = 0 to achieve that altitude from an initial height of 47⅔ m

6 0
3 years ago
Which number has a greater value in the thousands place 6,704 or sixteen thousand nine hundred eighteen
Galina-37 [17]
It is sixteen thousand nine hundred eighteen
3 0
4 years ago
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You are planning a 9 day trip to Texas. It will cost approximately $350 per day in
Nuetrik [128]

Answer:

4 days in Houston and 5 days in Sand Antonio

Step-by-step explanation:

5 0
3 years ago
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