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olga nikolaevna [1]
3 years ago
5

Zach is 3 years older than twice his sister Maya’s age.

Mathematics
2 answers:
Flauer [41]3 years ago
8 0
The answer is z=2m+3 so the first one is right
damaskus [11]3 years ago
5 0
The answer is z=2m+3  ^_^
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How do you factor (y^4-x^9) ? <br><br> Thank you
polet [3.4K]
So since you know that x^2-1 is equal to (x-1)(x+1),
you can figure that this factors to
(y^2-x^3)(y^2+x^3)
because you know how the difference of two squares formula, stated on the top line of this answer.

5 0
3 years ago
I need help with this within the next /0 mins sum1 plz help
guajiro [1.7K]

Answer: Second option.

Step-by-step explanation:

Given the function f(x), which is:

f(x)=x

And given the function g(x), which is:

g(x)=2

You need to substiute the function g(x)=2  into the function  f(x)=x in order to find (fog)(x).

Therefore, through this procedure, you get this answer:

(fog)(x)=(2)

(fog)(x)=2

You can observe that this matches with the second option.

5 0
3 years ago
Read 2 more answers
Marie heated water in a beaker. When she began, the water had a temperature of 40 degrees, and she heated it at a rate of 2.5 de
kykrilka [37]

Answer:

2.5x + 40 = 1.5x + 50

Step-by-step explanation:

To find how many minutes passed before the water temperature in both beakers are the same, you need to set both of the expressions that show how hot the water in each beaker is to be equal to each other

4 0
2 years ago
X + 2y = 33<br> x-y = 11
Tasya [4]

Answer:

x=\frac{55}{3},\:y=\frac{22}{3}

Step-by-step explanation:

Solve by Substitution ;

\begin{bmatrix}x+2y=33\\ x-y=11\end{bmatrix}\\\\\mathrm{Isolate}\:x\:\mathrm{for}\:x+2y=33:\quad x=33-2y\\\\\mathrm{Subsititute\:}x=33-2y\\\\\begin{bmatrix}33-2y-y=11\end{bmatrix}\\\\Simplify\\\begin{bmatrix}33-3y=11\end{bmatrix}\\\\\mathrm{Isolate}\:y\:\mathrm{for}\:33-3y=11:\quad y=\frac{22}{3}\\\mathrm{For\:}x=33-2y\\\\\mathrm{Subsititute\:}y=\frac{22}{3}\\x=33-2\times\frac{22}{3}\\\\x=\frac{55}{3}\\\\x=\frac{55}{3},\:y=\frac{22}{3}

7 0
3 years ago
Sophie Ruth is eating a 50-gram chocolate bar which contains 30%, percent cocoa.
MrRissso [65]
Grams of cocoa =30% of 50g=(30/100) * 50 g=(30 * 50 g)/100=15 g

Soltution: 15 g
7 0
3 years ago
Read 2 more answers
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