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kogti [31]
3 years ago
15

Please help with answers to the last 2 rows

Mathematics
1 answer:
ELEN [110]3 years ago
4 0
Just do what you would do if you multiply double digit numbers expect with an extra digit. then count how many numbers are behind the decimal and when your down put the decimal point as much to the left from how many numbers are originally behind the decimal.
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Which of the following is a perfect square trinomial?
Snowcat [4.5K]

Answer:

x^2-5x+6\\(x-3)(x-2)

x^2-3x+4\\(x-4)(x+1)

x^2+20x+100\\(x+10)(x+10)\\(x+10)^2

That's the answer

x^2+14x-49\\x(x+14)-49

Only x^2+20x+100 is a perfect square trinomial

3 0
4 years ago
A ball is thrown upward from the top of a building. The function below shows the height of the ball in relation to sea level, f(
neonofarm [45]
For this case we have the following function:
 f (t) = -16t2 + 32t + 384
 By definition we have to:
 The average rate of change:
 AVR = (f (t2) - f (t1)) / (t2 - t1)
 Where,
 For t1 = 4
 f (4) = -16 * (4) ^ 2 + 32 * (4) + 384
 f (4) = 256
 For t2 = 6
 f (6) = -16 * (6) ^ 2 + 32 * (6) + 384
 f (6) = 0
 Substituting values we have:
 AVR = (0 - 256) / (6 - 4)
 AVR = -128
 Answer:
 
The average rate of change of f (t) from t = 4 seconds to t = 6 seconds is -128 feet per second.
3 0
4 years ago
Read 2 more answers
Need answer ASAP will give brainliest check out the picture
valentinak56 [21]

Answer:

i think... x=6

Step-by-step explanation:

3x+9=x+21

3x−x=12

2x=12

x=6

8 0
3 years ago
Jake car traveled 273 miles before running out of gas. The tank holds 13 gallons. How many miles per gallon dose jake care avera
astra-53 [7]

Answer:

21 miles per gallon.

Step-by-step explanation:

273 divided by 13 is equivlent to 21

7 0
4 years ago
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How do animators use math
Marina CMI [18]
Animators can create mountains using fractal geometry.

They create these mountains by breaking large triangles into smaller and smaller triangles, as a result, these large triangles end up looking like mountains.

An animator became a millionaire because he discovered this. He sold his mountain animations to air travel companies who wanted to place photographs of planes behind mountains in their advertisements.

It would've been expensive to take photos of planes behind real mountains, so these air travel companies decided to buy this animator's animations of mountains in order to save money.

What happened to this animator? Well he got hired by Pixar to help create the movie Toy Story and became even wealthier.
8 0
3 years ago
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