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kenny6666 [7]
3 years ago
6

Find the domain and range of this function.

Mathematics
1 answer:
Karolina [17]3 years ago
8 0

Answer:

domain- (0, infinity) range- (1, infinity)

Step-by-step explanation:

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11. 68.6 mph

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Step-by-step explanation:

You simply divide them (remember the word "per" means divide).

\dfrac{120}{1 \frac34} \approx 68.6

\dfrac{8 \frac13}{10} = \frac56

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3 years ago
Alexandra complete 40 percent of a 50-question assignment.how many questions did she complete?.
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lorasvet [3.4K]
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3 years ago
Please help I don't under stand how to do this ​
stealth61 [152]
You want to figure out what the variables equal to, all of these are parallelograms meaning opposite sides and angles are equal to each other.

In question 1 start with 3x+10=43, this means that 3x is 10 less than 43 which is 33, 33 divided by 3 is 11 meaning x=11.

Same thing can be done with the sides 124=4(4y-1), start by getting rid of the parentheses with multiplication to get 124=16y-4, this means that 16y is 4 more than 124, so how many times does 16 go into 128? 8 times, so x=11 and y=8

Question 2 can be solved because opposite angles are the same in a parallelogram, so u=66 degrees

You can find the sum of the interial angles with the formula 180(n-2) where n is the number of sides the shape has, a 4 sided shape has a sum of 360 degrees, so if we already have 2 angles that add up to a total of 132 degrees and there are only 2 angles left and both of those 2 angles have to be the same value then it’s as simple as dividing the remainder in half, 360-132=228 so the other 2 angles would each be 114, 114 divided into 3 parts is 38 so u=66 and v=38

Question 3 and 4 can be solved using the same rules used in question 1 and 2, just set the opposite sides equal to each other
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2 years ago
Please assist me with this problem​
Verizon [17]
<h3>Answers:</h3><h3>x = sqrt(10)</h3><h3>y = sqrt(5)</h3>

============================================

Explanation:

Naturally I start with x as that letter precedes y in the alphabet; however, it's easier to start with y because it is a leg of this triangle. We will then use the value of y to find x later.

For any 45-45-90 triangle, the two legs are the same length. So that's why we're able to quickly see that y = sqrt(5)

To get the hypotenuse, we multiply the leg length by sqrt(2). This trick only works for 45-45-90 triangles.

hypotenuse = leg*sqrt(2)

x = sqrt(5)*sqrt(2)

x = sqrt(5*2)

x = sqrt(10)

The rule I used is sqrt(a)*sqrt(b) = sqrt(a*b)

----------------

An alternate path is to use the pythagorean theorem to find x

a^2+b^2 = c^2

(sqrt(5))^2 + (sqrt(5))^2 = x^2

5 + 5 = x^2

10 = x^2

x^2 = 10

x = sqrt(10)

3 0
3 years ago
Read 2 more answers
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