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aleksklad [387]
2 years ago
10

Which equation is equivalent to the given equation?

Mathematics
1 answer:
Feliz [49]2 years ago
5 0

Answer:

3x² - 12x - 9 = 0

Step-by-step explanation:

3x² - 12x - 9 = 0

3x² - 12x =9

9-9=0

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a bale of hay mesures 2 feet By 2 feet By 3 feet hay weights 8 pound per cubic foot how much does the bale of hay weight
3241004551 [841]
2x2x3=12 12x8=96 so the bale of hay weighs 96 pounds.
6 0
3 years ago
Pls pls answer this asap no wrong answers pls
klemol [59]

Answer:

20, increased, Bianca

Step-by-step explanation:

First one:

He is shown to have travelled 20km in 1 hour, so that's 20km/h.

Second:

The gradient is how steep the curve is, the steeper the faster the person is travelling. Due to the fact Bianca's curve becomes steeper, it shows she is travelling faster. Therefore, her running speed increases.

Third:

Bianca's line hits 50km before Alberto, so therefore she finished first.

Let me know if this makes sense, hope it helped! :D

6 0
2 years ago
A cylinder shaped drum is used as a garbage container. The drum has a height of 4 ft and a radius of 1.25 ft.
Marina86 [1]
V=hpir^2
h=4
r=1.25
v=4pi1.25^2
v=4pi1.5625
v=6.25pi
v=19.625
rounded to hundreth
v=19.63 ft³
7 0
3 years ago
Read 2 more answers
raj has $10. if he buys 8 pears and 5 mangoes, he will be short of $1.10. if he buys 5 pears and 4 mangoes , he will receive $1.
Paladinen [302]

Answer:

1 pear = $0.45

1 mango = 1.5

Step-by-step explanation:

8 pears + 5 mangoes = $11.10 ➡ 8p + 5m = 11.10

5 pears + 4 mangoes = $8.25 ➡ 5p + 4m = 8.25

multiply first equation by -4 and second one by 5

-4 ×(8p+5m) = 11.10 ➡ -32p - 20m = 44.4

5 ×(5p+4m) = 8.25 ➡ 25p + 20m = 41.25

add both equations up

-32p - 20m + 25p + 20m = 44.4 + 41.25

-7p = 3.15 ➡ p = $0.45

use this value to find the price of mango

5×0.45 + 4×m = 8.25 ➡ 2.25 + 4m = 8.25 ➡ 4m = 6 ➡ m = $1.5

8 0
3 years ago
Solve 2x2 + 3x – 7 = x2 + 5x + 39 for x.
Brrunno [24]
The answer to this question is:
x = 1 + or - the square root of 47
6 0
3 years ago
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