Please help urgently!!! 2x(squared)+x-3=0 5x(squared)+3x=2
x(squared)-5x=0
5x(squared)= 4x
These are all separate equations, can somebody solve them?!

Answers

Answer 1

Answer: [Note: ^2 is squared. i just find it quicker to type out]

2x^2 + x - 3 = 0
First get rid of -3 by adding 3 to both sides.
2x^2 + x = +3
Then get rid of x by subtracting x from both sides
2x^2 = 3 - x
Now square root (√) both sides to get rid of the square (^2). This leaves 2x by itself.
2x = √(3 - x)
Finally, divide both sides by 2 so x can be by itself.
x = √(3 - x)/2

5x^2 + 3x =2
Similar to question the 1st question. Get rid of -3x because its smaller than 5x^2
5x^2 = 2 + 3x
Now get rid of the square by sq rooting both sides
5x = √(2 -3x)
This time you divide both sides by 5
x = √(2 - 3x)/5

x^2 - 5x = 0
+5x to both sides
x^2 = 5x
sq root both sides to remove ^2
x = √(5x)
I think this part is optional since you've already got x by itself, but you could divde both sidee by 5 so its not 5x
x/5 = √x

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How do I find the perimeter of a triangle?

Answers

"Perimeter" is the distance all the way around it.

To find the perimeter of a triangle, collect these numbers:

-- length of one side
-- length of another side
-- length of the remaining side .

Add up those three numbers. Their sum is the perimeter of the triangle.

Perimeter is the distance around the object (in this case a triangle) and is found by adding up the length of each side

Marco got a quotient of 70 when he divided 49 by 0.07. Part A
What is the correct answer for this problem? (SHOW WORK)
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Part B
What mistake did Marco make? (SHOW WORK)
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Answers

The correct answer for this problem is 700. This is because 0.07 is in the hundredths place. Marco got it wrong because he didn't count the place correctly.

What times what equals 576?

Answers

So many things equal 576.
A few examples are
2 and 288
1 and 576
3 and 192
4 and 144
6 and 96
8 and 72
9 and 64
And so on... All it is is just factors

To get the answer of 576 you must multiply 24 x 24 to get 576 you are welcome my good sir

ed spent 35% of his time on roller coasters. if he was there for 8 hours, how much time did he spend on roller coasters

Answers

0.35= 35% 0.35 * 8= 2.8 Ed spent 2.8 hours of his time on roller coasters.

Which fractions are equivalent to -1/5 ?

Choose all answers that are correct.

Answers

ok so remember
negative/negative=positive
positive/positive=positive
positive/negative=negative
negative/positive=neative

we have

which are equalivilent to -1/5
negative/positive=negative
we want 2 different signs on top and bottom aka the fraction is negative

cross out -4/-20

ok so a property of equal fractions are
if a/b=c/d, then (a*d)/(b*c)=1
ie
if 1/2=4/8, then 1/2 times 8/4=8/8=1 so

-1/5 times -25/5=25/25=1
they are equal

-1/5 times 10/-2=-10/-10=1
they are equal

-1/5 times 25/-10=-25/-50=1/2,
noe equall

5/-25 and -2/10 are equal

Your answer is 5/-25 and -2/10 because -1/5 is -0.2 and 5/-25 gives you -0.2 and -2/10 also gives you -0.2 but you also have -10/25 which gives you 0.4 therefor your answer would be 5/-25 and -2/10

hope this helped

How many lateral faces does a pentagonal prism have? Explain