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natta225 [31]
3 years ago
15

7/10 × 4/21. Show your work

Mathematics
1 answer:
wolverine [178]3 years ago
6 0

Answer:

Step-by-step explanation:

7/10 × 4/21

1/5 *2/3 =2/15

reduce them down

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Hey! Can someone check my answers?
Andrew [12]
The greatest common factor is the biggest number taken from the values.

Q1. The answer is <span>A. 5y^6
</span>
20 y^{9} +5 y^{6}= 4*5 y^{9}+5 y^{6}
Since x^{a}* x^{b}  =x^{a+b}, then x^{9}= x^{3}* x^{6}

Back to our expression:
4*5 y^{9}+5 y^{6}=4*5 y^{3}*y^{6}+5 y^{6}=4 y^{3}*5y ^{6}+  5y ^{6}*1=5 y^{6} (4y ^{3} +1)
The greatest common factor is thus 5 y^{6}


Q2. The answer is <span>D. 12xy^2
</span>
12x y^{5}+60 x^{4} y^{2} -24 x^{3} y^{3}=12x y^{5}+5*12 x^{4} y^{2} -2*12 x^{3} y^{3}
We will use the rule  x^{a}* x^{b} =x^{a+b} to factorise the exponents:
12x y^{5}+5*12 x^{4} y^{2} -2*12 x^{3} y^{3}= \\ =12x*y^{2}*y^{3}+5*12*x* x^{3} *y^{2}-2*12x* x^{2} *y*y^{2}= \\ =12xy^{2}*y^{3}+12xy^{2}*5 x^{3} -12xy^{2}*2 x^{2} y= \\ =12xy^{2}(y^{3}+5 x^{3}-2 x^{2} y)
The greatest common factor is thus 12xy^{2}
3 0
4 years ago
How is the graph of y=(x-1)2 - 3 transformed to produce the graph of y=
Elodia [21]

Answer:

The graph is stretched vertically by a factor of ½, translated left 5 units, and translated up 3 units.

7 0
3 years ago
Plz help me w/these three problems reasonably easy sixth grade math thank you!!!!!
ss7ja [257]
This is simple!
To begin with, arrange all the numbers in order.
#1
5, 5, 20, 20, 25, 30, 35
Mean:  add all the numbers together and divide it by how many numbers are there
5+5+20+20+25+30+35=140 
there are 7 numbers
Mean: \frac{140}{7} = 20
Median: The middle number, if the set of numbers have an odd number, then the one in between is the median, if there it is an even number, then the mean of the two in-between numbers is the median.
Median:  20
Mode: The most repeated numbers
Mode: 5 and 20
Range: Highest number - lowest number
Range: 35 - 5 
            30
#2
Order: 44, 48, 48, 49, 59, 61, 63, 68
Mean: 440 (sum of all numbers)
there are 8 numbers in total
\frac{440}{8} = 55
Median: there are 8 numbers so, the mean of the in-between numbers will be the median
49+59=108
2 numbers
\frac{108}{2} = 54
Mode: 48
Range = 68 - 44 = 24


8 0
3 years ago
Which answer choices represents an expression
Lynna [10]

Answer:

A

Step-by-step explanation:

Madison's expression equals 8z and so does the answer.

6 0
3 years ago
Read 2 more answers
Find the circumference of the circle. Leave answer in terms of pi (meaning there should be 3.14 in your answer).
Law Incorporation [45]

Answer:

tr

Step-by-step explanation:

6 0
3 years ago
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