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Dahasolnce [82]
3 years ago
15

What is the easiest to use to solve x2-6=0?

Mathematics
2 answers:
miskamm [114]3 years ago
8 0
You can do +6 to both sides, now you have;
x2=6

Then divide both sides by 2, and you get your answer;
x=3

Hope this helps!
Tema [17]3 years ago
5 0
Factoring may be the easiest one
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The sum of the reciprocals of two consecutive odd integers is 24/143. find the two integers.
nordsb [41]
Let one integer be x, the consecutive odd integer is x+2
reciprocals are 1/x and 1/(x+2)
1/x +1/(x+2)=24/143
make the denominators the same:
(x+2)/[x(x+2)] +x/[x(x+2)]=24/143
143(2x+2)=24(x)(x+2)
286x+286=24x²+48x
24x²-238x-286=0
use the quadratic formula: x=22 this doesn't work because 22 is not an odd number.
or x=-2.1666666666 (this is not an integer)

weird.
4 0
3 years ago
Expand and combine like terms. (4b²+3)(4b²-3)​
Ad libitum [116K]

Answer:

16b4=9

Step-by-step explanation:

(4b²+3) (4b²-3)

16b4-12b²+12b²-9

16b(raised to power 4)-9

16b4-9

collect like terms

16b4=9

8 0
3 years ago
Can someone explain me how do i do (ii)?
Varvara68 [4.7K]

Answer:

(only ii right?)

Since we have the total number is 360° and our section is 72°, we know that the percentage of students who choose the cinema should be the number that we have divided to the total amount and then multiply the result by 100 ( it's fine if you write 100%, but when you actually calculate it, it's only 100, not 100%):

(72/360) . 100 = 20%

6 0
3 years ago
Some students reported how many pets they had. The dot plot shows the data collected: A dot plot is titled Students Pets and lab
hichkok12 [17]

Answer:B

Step-by-step explanation:I just know

4 0
3 years ago
What's the solution to<br> 1/5+1/3x&gt;1/2-1/4?
Serjik [45]

Answer:

x> 3/20

Step-by-step explanation:

Let's solve your inequality step-by-step.

1 /5  +  1 /3  x>  1 /2  −  1 /4

Step 1: Simplify both sides of the inequality.

1 /3 x+  1 /5  >  1 /4

Step 2: Subtract 1/5 from both sides.

1 /3 x+  1/ 5  −  1 /5  >  1 /4  −  1 /5  1 /3  x>  1 /20

Step 3: Multiply both sides by 3.

3*( 1 /3 x)>3*( 1 /20 ) x> 3 /20

Answer:

x>  3/ 20

Hope this helps!!

6 0
3 years ago
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