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Alenkinab [10]
3 years ago
6

Solve by using the perfect squares method. x2 + 4x + 4 = 0 a. 2 b. –2 c. 4 d. –4

Mathematics
2 answers:
Assoli18 [71]3 years ago
7 0
Solve your equation step-by-step.

x2+4x+4=0

Factor left side of equation.

(x+2)(x+2)=0

Set factors equal to 0.

x+2=0

or

x+2=0


x=−2

Stels [109]3 years ago
5 0
a^2+2ab+b^2=(a+b)^2 \\ \Downarrow \\
x^2+4x+4=x^2 + 2 \times 2 \times x +2^2=(x+2)^2 \\ \\
x^2+4x+4=0 \\
(x+2)^2=0 \\
x+2=0 \\
x=-2

The answer is B.
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The metro theater has 20 rows of seats with 18 Seats in each row. The theaters income in dollars if all seats are sold is (20x18
quester [9]
It would be $1,800
You would use the distributive property to do 18x5 and then 20x5 and then add those to get 1,800
4 0
3 years ago
Help help help help help help
emmainna [20.7K]
Answer: 6




Step-byStep:


[(18- 8) x 3) + (4+3) x 6] divided by 12

step 1- start with the stuff in the parentheses

[(10 x 3) + (7 x 6)] divided by 12

step 2- simplify things in parentheses

[30 + 42] divided by 12

step 3- simplify even more

[72] divided by 12

step 4- remove brackets, and simply even further

72 divided by 12 = 6



Hope this helps
6 0
3 years ago
Read 2 more answers
Help i have no idea how to solve this
ASHA 777 [7]

Answer:

AB =24

Step-by-step explanation:

So, since all the sides are equal, you can just take two of the sides and set em equal to each other to find x and then, solve for AB

4x+8 =6x

8= 6x-4x

8=2x

8/2 =x

x= 4

Now, find AB, which is 4x+8

4(4) + 8

16+8 = 24

Hope this helps!

Please mark brainliest if you think I helped! Would really appreciate!

5 0
3 years ago
A recipe requires sugar, flour and cocoa in the ratio 5:4:1
WARRIOR [948]
Let x be the amount of cocoa you use in the recipe.

then 4x is the amount of flour used, and 5x is the amount sugar used.

x+4x+5x= 550g
10x=550g
x=55g

So, you use 55g of cocoa, 220g of flour, and 275g of sugar. 

hope this helps! :)
3 0
3 years ago
Fill in the blanks below in order to justify whether or not the mapping shown
Digiron [165]
Basically, it is not a function because 1 domain (in this case, 5) can not be connected to two different ranges(1 and -2). Each domain must only connect to one range.
7 0
2 years ago
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