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GuDViN [60]
3 years ago
10

Which equation illustrates the additive inverse property?

Mathematics
1 answer:
Stella [2.4K]3 years ago
6 0
A. 6+0=6 is the answer but if it was multiplication it would be 6x1=6
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What are the roots of the equation x^2+6x-9=0
Mila [183]

Answer:

x = approx. 1.24 or -7.24

Step-by-step explanation:

It's hard to factor directly so we should use the quadratic formula or complete the square. I'm going to go with completing the square.

x²+6x-9=0

x²+6x=9

x²+6x is the same as x²+2·3·x, in order to make this into the algebraic identity (A+B)²=A²+2AB+B², we must add B², or in this case 3² to both sides. (A is x, B is 3)

x²+6x+9=18

(x+3)²= 18

x+3= ±√18

x= ±4.24 -3 (approximately 4.24)

First solution for  x = 4.24-3 = 1.24

Second solution for x = -4.24-3 = -7.24




4 0
3 years ago
Two men, joel and jerry, push against a wall. jerry stops after 10 min, while joel is able to push for 5.0 min longer. compare t
Iteru [2.4K]
THey tried to push but the wall doesn't move. So Nobody did any work. Everybody's work done is 0.
5 0
3 years ago
A right triangle has a leg of 11 cm and a hypotenuse of 17 cm.
Vedmedyk [2.9K]
The answer would be the second option, 13.0 cm.

To find the missing length of the leg, you would use the pythagorean theorem and substitute your inputs in.

a^2+b^2=c^2
11^2+b^2=17^2
121+b^2=289
b^2=168
b=12.96 
b=13.0 cm (rounded up)
4 0
3 years ago
Read 2 more answers
Looking for some on this problem
adelina 88 [10]
The correct answer is D
8 0
3 years ago
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Plz help me fast urgent thank you :) 20 points
NeTakaya

Answer:

I believe it is A. Cooperative Federalism

Step-by-step explanation:

The other ones don't seem applicable to the diagram

5 0
3 years ago
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