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sladkih [1.3K]
3 years ago
12

2x ​2 ​​ (9x ​2 ​​ −16)

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
7 0
Is the equation2x2(9x+2-16) if so you would do -16+2 first which is -14

Then multiply 2x2 equals 4

4(9x-14)

Multiply the 4 to 9x and -14

You get 36x-56
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Choose the best description for the real number 34 over 3.
harkovskaia [24]

Answer:

The answer is C

Step-by-step explanation:

First of all let's eliminate the answers that do not make sense. For A. numbers are NOT irrational because they are a fraction. Numbers are also not irrational because they are a repeating number. C and D are both correct as fractions and terminating decimals are both rational numbers.

34/3≈11.33333333

By using a certain formula you can convert repeating decimals to a fraction. But most people know that .3333333 is 1/3. This gives us 11 1/3 as our answer. So what does it match? It is not a terminating decimal. It repeats but can be written as a fraction. Therefore our answer is C) Rational, because it is a fraction.

7 0
3 years ago
Find the area of the figure.​
zhuklara [117]
Length x Width x height
14•10•10= 1400
5 0
3 years ago
Ajar contains 6 chocolate chip cookies and 9 peanut butter cookies. Richard grabs 3 cookies at random to pack in his lunch.
mel-nik [20]

Answer: 20%

Step-by-step explanation:

There are 15 total cookies. Divide 3 by 15, 3 being how many cookies he took out. Then you get 0.2. Move the decimal over two and you have 20%.

7 0
3 years ago
how much fence would you need to replace the fence of a 30 foot by 40 foot playground? How much sod would you need to re-sod the
Mrrafil [7]
Perimeter=sum of side lengths...

P=2L+2W

P=2(L+W), in this case L and W are 30 and 40 so

P=2(30+40)

P=2(70)

P=140

So 140 feet of fencing is needed to replace the fence.

The amount of sod needed is equal to the area which is LW

A=30(40)=1200 ft^2
3 0
3 years ago
Need help with this question
tatuchka [14]
Z(x)=6x^3+19x^2-52x+15
(6*-5)^3+19*-5^2-52*-5+15
Z(x)= -17,700
4 0
4 years ago
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