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castortr0y [4]
3 years ago
7

An oak tree is 1.5×103 centimeters tall. Which unit of measurement is most appropriate to measure this height? kilometers feet i

nches millimeters
Mathematics
1 answer:
Softa [21]3 years ago
7 0

Answer:

I think the correct answer is feet

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[URGENT]
Blizzard [7]

When you write URGENT the Brainly cops think you may be taking a test.

y = ax² + c thru (-1,4) and (0,8)

Substituting in the coordinates of each point for x and y gives two equations:

4 = a  (-1)² + c

8 = a (0²) + c = c

From the second one we see c=8.  Substituting into the first one,

4= a + 8

a = 4-8 = -4

Answer: a=-4, c=8

Check:

f(x) = -4x² + 8

f(0) = 8, good

f(-1) = -4(1) + 8 = 4, good

5 0
4 years ago
Which expressions are equivalent to g + h + (j + k)? Check all that apply.
Paha777 [63]

Answer:

3.

{ \tt{g + h + (j + k)}} \\  = (g + h) + j + k

5 0
3 years ago
Read 2 more answers
How do you factor x squared + 9
Alex Ar [27]
Your answer would be 3
5 0
3 years ago
Two number cubes are rolled --one blue and one yellow. Find the probability that the blue cube is less than 3 and the product is
Natalija [7]
Assuming they are dice, to work out the probability that the product is 8, the dice either have to be 2 and 4 or 4 and 2. The blue dice therefore has to be a 2 (4 is not less than 3), which is a 1 in 6 probability. The yellow one therefore has to be 4, which again is 1 in 6. The probablility that these both happen at the same time is given when they are multiplied together. \frac{1}{6}x\frac{1}{6} = \frac{1}{36}.
Hope that is useful.
8 0
3 years ago
How do scientists infer the presence of black holes since they can't be directly<br> observed?
Andrej [43]

Answer:

The presence of a black hole can be inferred through its interaction with other matter and with electromagnetic radiation such as visible light. Matter that falls onto a black hole can form an external accretion disk heated by friction, forming quasars, some of the brightest objects in the universe.

Step-by-step explanation:

7 0
3 years ago
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