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dmitriy555 [2]
3 years ago
12

What is the difference? 9/4 - 5/7

Mathematics
1 answer:
Elanso [62]3 years ago
8 0
43/28 (or 1 15/28)

9/4 = 63/28 and 5/7 = 20/28
63/28 - 20/28 = 43/28 
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Suppose you go to an ice cream shop which allows you to choose from 7 flavors of ice cream and 5 toppings. if you decide to get
alexdok [17]

The order doesn't matter.

k objects can be chosen out of n objects, when the order doesn't matter, in C(n,k)=\dfrac{n!}{k!(n-k)!} ways.

So, the answer is C(7,2)\cdot C(5,3)=\dfrac{7!}{2!5!}\cdot\dfrac{5!}{3!2!}=\dfrac{6\cdot7}{2}\cdot\dfrac{4\cdot5}{2}=210 ways.

8 0
3 years ago
Select the value(s) that represent
natta225 [31]

Answer:

±3/5

Step-by-step explanation:

±sqrt(9/25)

We can separate this into

± sqrt(9) / sqrt(25)

Since these are perfect squares

±3/5

6 0
3 years ago
Q1. If ∛5x+10=5, Find x
aleksandrvk [35]

Answer:

\sqrt[3]{5x+10}=5 / ^{3}\\  5x+10=125\\5x=115/:5\\x=23

If you mean that :\sqrt[3]{5x}+10=5 this is

\sqrt[3]{5x}+10=5 /^{3} \\5x+1000=125\\5x=-875/:5\\x=-175

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The sum of 4 consecutive odd numbers is 40.<br> What is the second number in this sequence?
EleoNora [17]

Answer:

The answer is 9.

Step-by-step explanation:

Because 7 + 9 + 11 + 13 = 40, 9 is the 2nd number in the problem.

7 0
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What temperature is twenty degrees lower than nine degrees celsius
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-11 degrees Celsius
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