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Nutka1998 [239]
3 years ago
14

I need help on this question

Mathematics
1 answer:
vaieri [72.5K]3 years ago
5 0

I'm guessing it is 10? or 7?

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. (a + b)2 – (2a – b)
inn [45]

Answer:

(-b) is the answer.

Step-by-step explanation:

2(a-b)-(2a-b)

=2a-2b-2a+b (opening the brackets)

= -b

Hope this helps you buddy. Have a nice day^_^.

If you have doubt then you can ask in comments. I will surely answer.

3 0
2 years ago
Read 2 more answers
Find the discriminant of 3x^2-10x=-2
Oksanka [162]

Answer:

76

Step-by-step explanation:

given a quadratic equation in standard form : ax² + bx + c = 0 : a ≠ 0

then the discriminant is Δ = b² - 4ac

given 3x² - 10x = - 2 ( add 2 to both sides )

3x² - 10x + 2 = 0 ← in standard form

with a = 3, b = - 10 and c = 2

b² - 4ac = (- 10)² - (4 × 3 × 2) = 100 - 24 = 76


7 0
3 years ago
Determine the answer to (-3)+(-5) and explain the steps using a number line
Tamiku [17]
-8
On the number line you either start at -3 or -5 and you got your answer
6 0
3 years ago
Customers arrat a service window according to a poisson process with an average of 0.2 per minute.
suter [353]

Answer:

Step-by-step explanation:

Given that customers arrat a service window according to a poisson process with an average of 0.2 per minute

=  12 per hour.

a)  the probability that the time between two successive arrivals is less than 6 minutes

= For one hour more than 60/6 =10 customers arrive.

P(X>10) = 0.6528

b) Prob that there will be exactly three arrivals during a given 10-minute period

P(x=3) for average 2

= 0.1804

3 0
2 years ago
Please helpppp! i really need help on this
nasty-shy [4]

Answer:

17,660,000

Step-by-step explanation:

First:

Multiply 14.6 x 10^6 which equals 14,600,000.

Second:

Multiply 3.06 x 10^6 which equals 3,060,000

Third:

Add Both answers together. You will get 17,660,000 as the answer!

7 0
2 years ago
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