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Serga [27]
3 years ago
11

What is ( x + y + 2 )( y + 2 )?

Mathematics
2 answers:
dybincka [34]3 years ago
8 0

Answer:

xy+y^2+2x+4y+4

Step-by-step explanation:

simplify by multiplying variable in the first parentheses set with the ones in the second parentheses set:

(x+y+2)(y+2)

=(x)(y)+(x)(2)+(y)(y)+(y)(2)+(2)(y)+(2)(2)

=xy+2x+y^2+2y+2y+4

=xy+y^2+2x+4y+4

hope this helps!

vovangra [49]3 years ago
7 0

Answer:

y²+4y+2x+xy+4

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The product of two mixed numbers that are each between 5 and 4 is the product between 16 and 25
Alchen [17]
Hmm
that is a true statement, the product of any 2 mixed numbers between 4 and 5, will be between 16 and 25

we can show that it is true by testing the bounds
if the number is 4 and the other is 4, then it is 16
we aren't allowed to do 4 since it isn't mixed and it equals 4
that is the lower bbound

if the numbes 5 and 5 are used, then it is 25
we arene't allowed to use 5 since it isn't mixed and it equals 5

so the product of any 2 numbers between 4 and 5 will be between 16 and 25

so pick any random one

4 and 3/4 times 4 and 5/323
4 0
3 years ago
In the figure, j∥k and m∠7 = 65°.<br><br> What is the m∠6 ?<br><br> Enter your answer in the box.
Sliva [168]
115, because since it is a straight line, the angle is 180 degrees. The two angles make up that 180 degrees. X + 65 = 180. X = 115
4 0
3 years ago
Read 2 more answers
What is the factorization of the trinomial below?
lidiya [134]

Answer:

B)

Step-by-step explanation:

4 0
3 years ago
What is the answer to vthis problem ??? 10 − 4m + 7m = m − 10
Wittaler [7]

Answer:


Step-by-step explanation:

10   -   4m     +    7m    =    m     -   10

Simply both sides:

10    +     -4m   +  7m  =   m   +     -10

Combine like terms:

( -4m  +  7m)   +  (10)   =   m   -   10

3m  +   10   =   m   -10

3m  +   10   =     m   - 10

Subtarct  m from both sides:

3m  +  10   -  m   =  m  - 10   -  m

2m   +   10  =   -10

Subtract   10 from both sides:

2m   +  10  - 10   =      -10    -    10

2m    =    -20

Divide  both sides by the 2:

2m/2     =     -20/2

m     =     -10



<u>Answer    =====>     m     =       -10</u>



Hope that helps           : )     -P-

4 0
3 years ago
Radium-226 has a half life of 1622 years. If you start off with a 200
sweet [91]

Answer:

≈23.6 kg left.

Step-by-step explanation:

For determining this, we can simply use an exponential decay equation representing this scenario:

y= a(0.5)^{\frac{t}{h} }

a: the initial amount

t: the amount of time

h: the half life

Now, substitute the numbers into the equation:

y=200(0.5)^{\frac{5000}{1622} }

Now, solve this equation:

y=220(0.5)^{3.08}

Use a calculator to solve for y:

y= 200(0.118)

y≈23.6 kg left.

3 0
3 years ago
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