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meriva
3 years ago
6

Solve the problem. Help quick

Mathematics
1 answer:
Svetlanka [38]3 years ago
7 0

Answer:

y = -x^2

Step-by-step explanation:

First off you can tell that the graph represents a negative,

nonlinear function due to the direction of the 2 "lines" from

point (0,0). This simply means you can eliminate the graph

representing y = 2x^2 as one of the choices. Now as this is

squared function (^2) you can tell that every x value should be

squared to receive the y value. Here I am suggesting a simple

- x^2 to be defined for the graph.  Take x = 1 as the first

example. If x is squared then y is equal to 1 as well. This is

represented as two coordinates on the graph, when the y value

is negative and when the y value is positive. Now say x = 2.

When x is squared  y = 4, represented by the graph as two

points as well, when y is a negative value of 4 and a positive.

This shows that the graph resembles the function -x^2                             (y = -x^2)

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7 and 1/4 divided by 5/6 as a fraction or mixed number in simplest form
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First off, turn 7 1/4 into a mixed number, 29/4. change 29/4  /  5/6   into a multiplication question by flipping 5/6 into 6/5 (AKA multiplying by the reciprocal) so you get 29/4  X  6/5. then multiply so you get 174/20. Next, simplify into a mixed number by seeing how many times 20 goes into 174, and then putting the leftovers into a fraction, so you get 8 14/20, then simplify even further so you get 8 7/10. 
3 0
3 years ago
The scale of scores for an IQ test are approximately normal with mean 100 and standard deviation 15. The organization MENSA, whi
Zina [86]

Answer:

B) 47.5%

Step-by-step explanation:

Refer to the normal distribution chart attached. If 130 is 2 standard deviations higher than the mean (ignore the numbers beneath the percentages), then by the empirical rule, this means that 34%+13.5%=47.5% of adults are between IQs of 100 and 130. Therefore, option B is correct.

5 0
3 years ago
What value of x would make the figure below a parallelogram? please show your work!​
lara31 [8.8K]

Answer:

x = 8

Step-by-step explanation:

Since the sum of all angles of a parallelogram is equal to 360 degrees, <Z + <Y is half of the parallelogram, and therefore <Z + <Y = 180 degrees.

16x-4 + 7x = 180, combine like terms

23x - 4 = 180, add 4 on both sides (isolate variable)

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x = 8

8 0
2 years ago
A car traveled 150 miles on 5 gallons of gas. Find the unit rate.
Sauron [17]

Answer:

30m per gallon

Step-by-step explanation:

150m/5g= 30m/g

8 0
3 years ago
Complete the slope equation of the line through 2,3 and 7, 4 <br><br> Y-4=
In-s [12.5K]

Answer:

The slope equation of the line AB is (y -4) = \frac{1}{5} (x-7)

Step-by-step explanation:

Here, the given points are A (2, 3) and B (7,4).

Now, slope of any line is given as :

m = \frac{y_2 - y_1}{x_2 - x_1}

or, m = \frac{4 -3}{7-2}   = \frac{1}{5}

Hence, the slope of the line AB is (1/5)

Now , A POINT SLOPE FORM of an equation is

(y - y0)  = m (x - x0) ; (x0, y0)  is any arbitrary point on line.

Hence, the equation of line AB with slope (1/5 )  and point (7,4) is given as:

(y  -4 ) = \frac{1}{5}  ( x - 7)

or, 5y  - 20 = x -7

⇒  x - 57  + 13 = 0  ( SIMPLIFIED FORM of equation)

Hence, the slope equation of the line AB is (y -4) = \frac{1}{5} (x-7)

3 0
3 years ago
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