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Alona [7]
3 years ago
14

If 12 less than 4 times a number is 8, the number is 5. What difference sentence where the unknown number is also 5?

Mathematics
1 answer:
Gnesinka [82]3 years ago
8 0
Sent a picture of the solution to the problem (s).

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(2a+b)^2 simplest form
creativ13 [48]
2^2a^2+b^2
4a^2+b^2
not sure if this is correct but here ya go
3 0
3 years ago
Factor 75t2 + 12.<br> 3(5t + 2)2<br> 3(25+2 +4)<br> 3(251-4)
frosja888 [35]

Answer:

75t^2+12=3(25t^2+4)

Option C)

Step-by-step explanation:

Here we are given with the expression 75t^2+12

The GCF of 75t^2 and 12 is 3

Hence we take 3 as GCF and bring it in front of the bracket.

3(25t^2+4)

It can not be factorise furthure  as there is no GCF of 25 and  also there is no rule for sum of squares so that we may apply it on this. Hence the answer would be

3(25t^2+4)

Option C)

4 0
3 years ago
What triangle is called with 2 pairs of parallel sides and 4 right angles
vlada-n [284]

This is impossible for a triangle to have however, your description perfectly matches a square or a rectangle

8 0
3 years ago
Uh, help? My quarantine brain does not understand.
atroni [7]
You put the values of x into the equation to work out y, so the y column would be -5, -1, 3, 7 (for question 6)
For question 7, the y column would be 2,2,0,-2
Use these values to draw the graphs :)
4 0
3 years ago
A bowl contains 8 chips: 4 blue and 4 red. Three chips are drawn at random and without replacement from a bowl. What is the prob
PIT_PIT [208]

Answer:

the probability that 3 blue chips ( or red chips) are chosen is P(X=3) = 1/14

Step-by-step explanation:

Since the X= choosing  x blue chips, then P(X) follows an hypergeometric distribution , when sampling is done without replacement

P(X=x) = (C,x) * (N-C , n-x) /( N ,n)

where ( ) represents combinations then

N= population size = 8 chips

n = sample size = 3 chips

C = number of blue chips = 4 chips

x= number of blue chips that are chosen = 3 blue chips

replacing values

P(X=3) = (4,3) * (8-4 , 3-3) /( 8 ,3) = (4,3) * (4 , 0 ) /( 8 ,3) = 4 * 1  / [ 8!/(3!*5!) ] =

4*3!*5! /8! = 1/14

P(X=3) = 1/14

8 0
3 years ago
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