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3 years ago

HELP PLS 99 POINTS

1 answer:

5 0

2x²-2x-12=0
simplify it into x²-x-6=0
factored form: (x-3)(x+2)=0
solutions: x-3=0 or x+2=0
x=3 or x=-2
Not sure how to explain "what the solutions mean for the equation". One thing you can say is that the solutions mean the equations have two roots/two zeros: 3 and -2, or the graph of 2x²-2x-12 intersects the x axis at (3,0) and (-2,0).

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Tiffany is packing her bags for her vacation. She has 8 unique toy animals, but only 4 fit in her bag. How many different groups

dalvyx [7]

Answer:

Step-by-step explanation:

GIVEN: Tiffany is packing her bags for her vacation. She has $8$ unique toy animals, but only $4$ fit in her bag.

TO FIND: How many different groups of $4$ toy animals can she take.

SOLUTION:

Total unique toy animal Tiffany has $=8$

Total animal that fit in her bag $=4$

Now,

Tiffany has to select $4$ toy animals from $8$ animals.

Number of ways of selecting 4 toy animals $=^8C_4$

$=\frac{8!}{4!4!}$

$=70$

Hence Tiffany has 70 different ways to select group of 4 unique toys.

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3 years ago

Which answer is the same as moving the decimal in 36.2 four places to the left?

sergij07 [2.7K]

Answer:

The answer is B.dividing 36.2 by ten thousands. Plz mark as the brainlyest answer.

Step-by-step explanation:

6 0

3 years ago

Please help and fast!

Alex_Xolod [135]

The first one 7x+15.50=100

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3 years ago

Find the equation of the line that contains the point (-1, -4) and is parallel to the line 6x+7y=13 . Write the equation in slo

sineoko [7]

Answer: $y=-\dfrac67x-\dfrac{34}{7}$

Step-by-step explanation:

Slope-intercept form: y=mx+c (i) , of linear equations, m= slope and c= y-intercept of the line.

6x+7y=13in slope intercept form would be :

$7y=13-6x\\\\\Rightarrow\ y=\dfrac{-6}{7}x+\dfrac{13}{7}$

Comparing to (i) , $m = \dfrac{-6}{7}$

Slope of parallel lines are equal.

So, slope of required line = $m = \dfrac{-6}{7}$

Equation of line with slope m and passes through point : $(y-b)=m(x-a)$

So, equation of required line:

$(y-(-4))=\dfrac{-6}{7}(x-(-1))\\\\\Rightarrow\ (y+4)=\dfrac{-6}{7}(x+1)\\\\\Rightarrow\ y+4=\dfrac{-6}{7}x-\dfrac{6}{7}\\\\\Rightarrow\ y=-\dfrac67x-\dfrac{6}{7}-4\\\\\Rightarrow\ y=-\dfrac67x-\dfrac{34}{7}$

6 0

3 years ago

Will give the brains of me brains and my brains and maby ur brain to u how many brains can i give u if u ask this quetion right?

Ket [755]

Answer: 83.6

Step-by-step explanation:

The data shown below is: 81,83,84,85,85. The mean of this data set can be calculated via (81+83+84+85+85)/5=83.6

Hope it helps <3

P.S. brainliest brains?

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4 years ago