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sergiy2304 [10]
2 years ago
6

What is the value of 2x^2 when x= -3

Mathematics
1 answer:
olga nikolaevna [1]2 years ago
7 0

Answer:

C) 18

Step-by-step explanation:

Substitute x=-3 into the expression:

2(-3)² = 2(9) = 18

Therefore, C is correct

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Help me plz I do not understand
9966 [12]
It is quite simple actually since it is simple division with the negative rules.
Just simplify the problem and use the negatives to determine if it is positive or negative. (two negatives equal a positive and one negative equals a negative)
5 0
3 years ago
When you are given three side lengths for a triangle, how do you know which length to substitute for a, b, or c in the Pythagore
Romashka [77]

Answer:

When Sum of square of two Sides is equal to square of third side of triangle.

Step-by-step explanation:

Given:

Three side length of triangle are given we need find the which value to substitute for a, b, c in Pythagoras theorem.

First we will find the squares of all length, then we will check which two square of side are equal to square of third side as per Pythagoras theorem.

Hence the two side would according be a and b and third side will become c.

For example if length of triangle  is given as 6 cm, 8 cm and 10 cm.

We will first take square of all

6^2=36\\8^2=64\\10^2=100

Now we can see that

36+64=100\\6^2+8^2=10^2

Now by Pythagoras theorem.

a^2+b^2=c^2

Hence we can say a = 6 cm, b = 8 cm, c= 10 cm  

6 0
3 years ago
Quick I need to finish this and I still have more questions after
OLEGan [10]

Answer:

1\frac{1}{2} or 1.5

Step-by-step explanation:

Now we know it's a dilation.  So we can use any two points.  I chose V and V'.

V: (3,6)

V': (2,4)

So how we get from 6 to 4?

4(x)=6\\x=\frac{6}{4} \\x=1.5

You can tell it's 1.5 aswell because 4 times 1 is 4 and 4 times 0.5 is 2.  Add them to get 6.  

Therefore, the dilation factor is 1.5.

3 0
2 years ago
A colored chip is yellow on one side and red on the other. The chip was flipped 50 times and landed yellow side facing up 30 tim
Nat2105 [25]
60% 
50/30 is 0.6
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7 0
3 years ago
Read 2 more answers
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lutik1710 [3]

Answer:

Parents are too busy with their careers which leads children to seek attention by being aggressive

Parents Who Abuse Their Children Set an Example of Violence

Authoritative Parenting is Better Than Coddling to Prevent Violent Children

What About Outside Sources?

Parents Can Prevent Violence by Spending Time With Their Kids

Step-by-step explanation:

Hope this helped!

3 0
3 years ago
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