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Sholpan [36]
3 years ago
8

Can someone help me on 20 pls

Mathematics
1 answer:
murzikaleks [220]3 years ago
5 0

Answer:The answer is d.overturning the supreme courts decision in Dred Scott V. Sandford


Step-by-step explanation:


You might be interested in
Please help me now ! Thank you
jarptica [38.1K]
First we'll do two basic steps. Step 1 is to subtract 18 from both sides. After that, divide both sides by 2 to get x^2 all by itself. Let's do those two steps now

2x^2+18 = 10
2x^2+18-18 = 10-18 <<--- step 1
2x^2 = -8
(2x^2)/2 = -8/2 <<--- step 2
x^2 = -4

At this point, it should be fairly clear there are no solutions. How can we tell? By remembering that x^2 is never negative as long as x is real. 

Using the rule that negative times negative is a positive value, it is impossible to square a real numbered value and get a negative result. 

For example
2^2 = 2*2 = 4
8^2 = 8*8 = 64
(-10)^2 = (-10)*(-10) = 100
(-14)^2 = (-14)*(-14) = 196

No matter what value we pick, the result is positive. The only exception is that 0^2 = 0 is neither positive nor negative.

So x^2 = -4 has no real solutions. Taking the square root of both sides leads to

x^2 = -4
sqrt(x^2) = sqrt(-4)
|x| = sqrt(4)*sqrt(-1)
|x| = 2*i
x = 2i or x = -2i
which are complex non-real values


5 0
3 years ago
Which expression is equal to 1/4
grandymaker [24]

Answer: An option is 3/12...

Step-by-step explanation:

You can just multiply the numerator and denominator my the same number to find an equivalent

6 0
3 years ago
PLEASE ANSWER QUICKLY!!!!
nikitadnepr [17]
It’s kinda blurry, can u retake it
7 0
2 years ago
The mean age of five people in a room is 24. One of the people (age 40) leaves the
juin [17]

Answer:

thxss for the points love

Step-by-step explanation:

kisses

7 0
2 years ago
Read 2 more answers
A car is going 10 miles per hour when the driver hits the breaks. The car travels 3 feet after the brakes are applied. A little
Dahasolnce [82]

Answer:

6

Step-by-step explanation:

10/3=20/x

20/10=2

x/3=3*2

x=6

8 0
3 years ago
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