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timama [110]
3 years ago
12

Factorise this expression as fully as possible 2x^2+6x

Mathematics
1 answer:
AURORKA [14]3 years ago
3 0

Answer:

(Factor out 2x from the expression)

2x (x +3)

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Which values of m and b will create a system of equations with no solution? Select two options.
emmasim [6.3K]

Answer:

Step-by-step explanation:

y = -2x + 2/2.....slope = -2, y int = 2/2(or just 1)

y = -2x + 3/2....slope = -2, y int = 3/2

when the equations have the exact same slope, but different y intercepts.....and this one does....then there is no solution because these are parallel lines....they never cross each others path.

6 0
3 years ago
Amanda recorded the temperatures at which two oils freeze:
lianna [129]

Answer:

Peanut oil freezes at a higher temperature than olive oil because 3.1 °C > –6.1 °C.

Step-by-step explanation:

Well since 3.1 is greater than -6.1 then it should be Peanut oil freezes at a high temperature. I did the test and I got it right. I hope you do to. :)

4 0
3 years ago
If a translation of T-3,-8(x, y) is applied to square ABCD,<br> what is the y-coordinate of B?
borishaifa [10]
Square ABCD of the translation T-3,-8(x,y)
4 0
3 years ago
A fair coin is continually flipped until heads appears for the 10th time. Let X denote the number of tails that occur. Compute t
Ierofanga [76]

Answer:

The probability mass function is expressed as:

P(x) = [(x+r-1)C(r-1)]*[p^r]*[(1-p)^x]

Step-by-step explanation:

This is not a binomial distribution. It is actually a negative binomial distribution. The probability mass function is expressed below:

P(x) = [(x+r-1)C(r-1)]*[p^r]*[(1-p)^x]

where:

x = number of failures

r-1 = number of successes (10 in this scenario)

p = probability of a success

nCr = n!/[r!(n-r)!]

The main formula difference in the positive binomial versus negative binomial is this: With respect to the negative binomial, it is obviously  known that the last event will be: when we reach our 10th "head", we stop .

Thus, the last flip will ALWAYS be a "head".

5 0
3 years ago
The formula <br> h-15 =3.2t, when was the height 31 inches
Arada [10]
Plug in 31 where h is assuming that's what the variable h represents. 

31 - 15 = 3.2t
16 = 3.2t
Divide both sides by 3.2

t = 5


8 0
3 years ago
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