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Trava [24]
3 years ago
14

4 1/5 of 8 2/10 is what number? (A) 1/2 (B) 21/41 (C) 861/25 (D) 21/82

Mathematics
2 answers:
Naya [18.7K]3 years ago
6 0

Answer:

C

Step-by-step explanation:

Change the mixed numbers to improper fractions

4 \frac{1}{5} = \frac{21}{5}

8 \frac{2}{10} = 8 \frac{1}{5} = \frac{41}{5}

Replace ' of ' by multiplication

= \frac{21}{5} × \frac{41}{5}

= \frac{21(41)}{5(5)} = \frac{861}{25} → C

In-s [12.5K]3 years ago
4 0

Answer: i think it would be POSSIBLY C. or D.

Correction it is C

Step-by-step explanation:

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Jasmine wants to build a 2 2/5 meter long garden path paved with square stones that measure 1/4 meter on each side. There will b
Allisa [31]
The answer is 9 3/5
3 0
3 years ago
Let T:R²->R² be a linear transformation ,and assume that T (1,2)=(-1,1) and T(1,-1)=(2,3)
zavuch27 [327]

Answer:

(-4,-1)

Step-by-step explanation:

We are given T(1,2)=(-1,1) and T(1,-1)=(2,3) and T is a linear transformation.

This implies for scalars a and b that

T(a(1,2)+b(-1,1))=aT(1,2)+bT(-1,1)

T((a,2a)+(-b,b))=a(-1,1)+b(2,3)

T((a-b,2a+b))=(-a,a)+(2b,3b)

T((a-b,2a+b))=(-a+2b,a+3b)

This means we should be able to solve the system below to find a and b for T(3,3):

a-b=3 and 2a+b=3

Add equations to eliminate b and solve for a:

3a=6

Divide 3 on both sides:

a=2

If a-b=3 and a=2, then b=-1.

Plug in a=2, b=-1:

T((a-b,2a+b))=(-a+2b,a+3b)

T((2--1,2×2+-1)=(-2+2×-1,2+3×-1)

T(3,3)=(-4,-1).

4 0
3 years ago
Is the following statement a good definition? Why? An integer is divisible by 100 if and only if its last two digits are zeros.
kifflom [539]
The given statement is:
An integer is divisible by 100 if and only if its last two digits are zeros

The two conditional statements that can be made are:

1) If an integer is divisible by 100 its last two digits are zeros.

This is a true statement. If a number is divisible by 100, it means 100 must be a factor of that number. When 100 will be multiplied by the remaining factors, the number will have last two digits zeros. 

2) If the last two digits of an integer are zeros, it is divisible by 100.

This is also true. If last two digits are zeros, this means 100 is a factor of the integer. So the number will be divisible by 100.

Therefore, the two conditional statements that are formed are both true.

So, the option A is the correct answer.
Yes, it is. When the definition is separated into two conditional statements, both of the statements are true
6 0
3 years ago
How do I find one side of an angle
Dimas [21]

Answer: Can you explain more? you have to calculate it by an theorm

Step-by-step explanation:

6 0
3 years ago
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Write a formula that can be used to find the area of a sector of a circle explain and justify the formula you wrote
Airida [17]

Answer:

X/360 (r^2)

Step-by-step explanation:

If X is the number of degrees of the sector, then the area will be given by

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For instance, if the sector is half the circle, then we have

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8 0
3 years ago
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