3 years ago

3b^2+8b+10+2b^2+5b-5 Simplify the expression by combining like terms

Mathematics

1 answer:

WITCHER [35]3 years ago

3 0

Step-by-step explanation:

9b^2+8b+10+4b^2+5b-5

13b^2+13b+5

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A supermarket has found that 60% of their customers spend more than $75 each visit. Whats the probability that the next 2 custom

spin [16.1K]

Answer: 0.36 or 36%
60%=60/100=0.6

60% is the same as saying 60/100 or 0.6

To solve for the probability of this problem, we have to, multiply the odds of the two separate events together

event1 is a customer that spends more than 75$. The odds of that happening are .6

event 2 is a customer that spends more than 75$. The odds of that happening are .6

probability=event1*event2
probability=.6*.6
probability=.36 or 36%

7 0

2 years ago

The combined height of one fir tree and one pine tree is 212121 meters. The height of 444 fir trees stacked on top of each other

inn [45]

Answer: The height of each fir tree is 9 meters, and the height of each pine tree is 12 meters.

Step-by-step explanation:

Let x= height of each fir tree, y = height of each pine tree.

As per given, we have

x+y = 21 (i)

4x=y+24 (ii)

From (ii),

$4x-y=24$ (iii)