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Korvikt [17]
3 years ago
14

Square root of (20 - r) = r

Mathematics
1 answer:
Marrrta [24]3 years ago
6 0
R=4 because 20-4 = 16 and 4 times 4 = 16
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You move right 3 units and left 4 units. you end at (-3,-1). where did you start?​
Tema [17]

Answer:

(-2,-1) is where u start

Step-by-step explanation:

6 0
3 years ago
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shareka has a pet dog that is 3ft tall. she also has a stuffed dog that looks exactly like her dog. it is 6 inches tall. what is
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The scale factor should be 1:2  Hope this helps
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3 years ago
Write all factor pairs for the number 64
sladkih [1.3K]
A factor pair is two numbers that can be multiplied to get a number.
With any number, we know that 1*itself is a factor pair. So
1*64
The number in the ones place, 4, is even, so we know that 64 is a multiple of 2. Half of 64 is 32, so
2*32
To find out if 3 is a factor of 64, we can add 6+4. If the answer is a multiple of 3, then we know that the number itself is a multiple of 3. Because 6+4=10, and 10 is not a multiple of 3, we know that 64 is not a multiple of 3.
If 2 is not a factor of a number, then we know that 4 (2*2) cannot be a factor. Because 2 is a factor of 64, then 4 might be as well. To discover whether or not 4 is a factor of 64, we can look at the number above multiplied by 2 to equal 64 (32) and see if it divides by 2 evenly, or we can half 64 and then half it again. If either answer is a whole number, then we know that the answer*4 equals 64, and that 64 is a multiple of 4. Because half of 32 is 16, a whole number, we know that
4*16=64
Because 64 does not have a 0 or 5 in the one's place, we know that it cannot be a multiple of 5.
Because 64 is not a multiple of 3, we know it cannot be a multiple of 6, because 6 is 2*3.
I happen to be familiar with my times tables, so I can tell that the multiples of 7 are 63 and 70, but not 64. 
I don't know if 64 is a multiple of 8 off the top of my head, but I can count by 8s and see if 64 comes up: 8, 16, 24, 32, 40, 48, 56, 64, 72 - I can go on, but we can already see that 64 is a multiple of 8, so 8 is a factor of 64. If we count the number of 8s I can see that there are 8 of them when we get to 64. In other words, 
8*8=64 
Because we have gotten to a factor pair that is the same 2 number multiplied by each other (the square root) we know that we have found all factor pairs of 64. 


8 0
3 years ago
Read 2 more answers
Find the value of these limits
kupik [55]

Step-by-step explanation:

Limit as x approaches 5 from the left is 5^2 + 5(5) + 4 = 54

Limit as x approaches 5 from the right is -6(5)+3=-27

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