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notsponge [240]
2 years ago
13

Y=-x^2 +78x-512 I need help with this problem

Mathematics
1 answer:
TiliK225 [7]2 years ago
7 0

Answer:

Step-by-step explanation:

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What so the tax cost $15 tax 5% what do I do
Lisa [10]

Answer:

$15.75

Step-by-step explanation:

15 + (15 x 0.05)

7 0
3 years ago
A school plays a series of 6 soccer matches. For each match there are 3 possibilities: a win, a draw or a loss. How
Sphinxa [80]

Answer:

There are 729 possible results are there for the series

Step-by-step explanation:

If we have n trials, each with m possible outcomes, the total number of possible outcomes is:

T = m^{n}

In this question:

6 games(trials), so n = 6.

Each with three possible outcomes, so m = 3

Then:

T = 3^{6} = 729

There are 729 possible results are there for the series

7 0
3 years ago
27 thousands 3 hundreds 5 ones X 10
Leokris [45]
27 thousand 27,000
3 hundred         300
5 ones                5
27,305 x 10= 273,050 
Please let me know if you have any questions id be happy to explain in more detail
8 0
3 years ago
Read 3 more answers
Quadratics easy question. Please help
andre [41]

Answer:

1.62 seconds

Step-by-step explanation:

h = -16t² + 24t + 16.4

The initial height is 16.4 feet.  The snowboarder lands 3.2 feet below this, or at a height of 13.2 feet.

13.2 = -16t² + 24t + 16.4

16t² − 24t − 3.2 = 0

Solve with quadratic formula:

t = [ -(-24) ± √((-24)² − 4(16)(-3.2)) ] / 2(16)

t = [ 24 ± √(576 + 204.8) ] / 32

t = 1.62

The snowboarder is in the air for 1.62 seconds.

3 0
3 years ago
Read 2 more answers
AB is the diameter of a circle whose center is the point (4,-3). If the coordinates of A are (-1,5), find the coordiantes of B.​
____ [38]

Answer: (9, -11) ==> point B

Step-by-step explanation:

(4, -3)-(-1, 5)=

(4-(-1), -3-5)=

(4+1, -8)=(5, -8)

(5, -8)+(4,-3)=

(5+4, -8-3)=(9, -11) ==> point B

3 0
1 year ago
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