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Tom [10]
3 years ago
13

Help? I forgot how to do this, I don't get the example either, I did the same thing it did but it didn't work. May you please ex

plains it to me on how to do it? Thanks :D

Mathematics
2 answers:
3241004551 [841]3 years ago
6 0
Ok, so first convert both the numbers to improper fractions. (Multiply the denominator of the fraction by the whole number and add the numerator of the fraction)

Then keep the first number the same, change the division symbol to a multiplication symbol and use the reciprocal of the second number. (flip the numbers so that the denominator becomes the numerator and the numerator becomes the denominator.)

Then simply multiply across.
miss Akunina [59]3 years ago
3 0
For example, if it's 4 1/3 divided by 1 1/3, multiply the denominator, 3, by the whole number. For 4 1/3, it would be 3*4 to get 12. Then add the numerator to get 13. 4 1/3 is then represented as 13/3. Do the same for 1 1/3 to get 4/3. Do the reciprocal to get 3/4. Then instead of dividing, do 13/3 times 3/4. Since the denominator of 13/3 and the numerator of 3/4 are the same, cross them out. You're left with 13/1 times 1/4. Multiply to get 13/4, or 3 1/4.

Tip: Use a website called Wolfram Alpha. Type in mixed numbers by using 4 (space) 1/3 (type times, don't put *) whatever number. wolframalpha.com 
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Please help mee, (30 points will give brainliest!!!)
Vadim26 [7]

Answer:

-4

+3

12

-0.5, 12.25

x = -0.5

Step-by-step explanation:

The x intercepts are the values of x when y = 0 ie the roots of the equation
-x^2 -x +12 = 0

or

x^2  + x  - 12 = 0

We can re-write the above as:
(x+4) (x-3) = 0
This gives the two roots as x = -4 and x = +3. Leftmost (smallest) root is -4 and rightmost(largest) root is +3

y intercept is when x = 0. Plugging into the original equation, y value at x = 0 is 12

Vertex x value is given by the formula -b/2a where a is the coefficient of x^2 and b the coefficient of x

Here a = -1, b= -1 so vertex x value = - (-1)/(-1).2 = - 1/2 = -0.5

Plugging this value of x into the original function gives the vertex y value
y = - (0.5^{2}) - (-0.5) + 12\\= -0.25 + 0.5 + 12 = 12.25

The line of symmetry is the vertical line corresponding to the vertex x value so line of symmetry is at x = -0.5

The graph of the quadratic function shows these values

3 0
2 years ago
What is 692,040 rounded to nearest hundred
Leviafan [203]

it would be 692,000 even though it may look odd since the place holder for 100 is a 0

8 0
3 years ago
What is the smallest bone in the human body using no limbs?
sdas [7]
The stirrup bone is the shortest bone in the body?
6 0
3 years ago
The quotient of r and 12​
olchik [2.2K]
R/12 is the solution because it is how many times you can put r into 12
4 0
3 years ago
Find the greatest common factor of 84 and 36, showing how you got your answer. Then, using complete sentences,
Romashka-Z-Leto [24]

Answer:

greatest common factor is 12

Step-by-step explanation:

12*7 = 84

12*3 = 36

this means that this is the factor that they both share that has the highest value out of all the factors they share

5 0
2 years ago
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