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kodGreya [7K]
2 years ago
9

Let f(x) = x2 − 3x − 7. Find f(−3)

Mathematics
1 answer:
uranmaximum [27]2 years ago
3 0
Substituting -3 for x, we have:  (-3)^2-3*-3-7.  This simplifies to 9+9-7, or 11.
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#9 - The Question
melamori03 [73]

Answer:

  12

Step-by-step explanation:

There are many ways to approach this problem. I like a method that uses the least amount of computation. We could figure how much Wendy makes on a bag of chips, the additional amount Wendy wants to make, then divide the latter by the former to find the number of additional bags to sell.

We could use a proportion to figure the number of bags corresponding to $126 in earnings, then subtract the 72 bags already sold. Essentially, we will do this, but without the intermediate numbers.

__

The additional fraction of 72 bags will be ...

   (126/108) -1 = 18/108 = 1/6

Then Wendy must sell an additional ...

  (1/6)×(72 bags) = 12 bags

to increase her earnings to $126.

7 0
2 years ago
In the figures, area of triangle ABE is 25 cm2
stira [4]

Answer:

sorry where is figure.

Step-by-step explanation:

area of triangle ABE=area of triangle BE3

4 0
2 years ago
Find the difference in simplest form:
Andrew [12]

Answer:

D. is the answer I got i think it is right but IDK

4 0
3 years ago
Read 2 more answers
Part 1 state the domain and range of the given relation.
hram777 [196]
A relation is any set of ordered pairs, which can be thought of as (input, output).

A function is a relation in which NO two ordered pairs have the same first component and different second components.

The set of first components (x-coordinates) in the ordered pairs is the DOMAIN of the relation.

The set of second components (y-coordinates) is the RANGE of the relation.

Part 1:
Domain: {-1, 1, 3, 6}
Range: {2, 2, 2, 2}

Part 2:
To determine whether the given relation represents a function, look at the given relation and ask yourself, “Does every first element (or input) correspond with EXACTLY ONE second element (or output)?”

Remember that a function can only take on 1 output for each input.

It helps to plot the points on the graph and perform the Vertical Line Test (VLT):

The Vertical Line Test allows us to know whether or not a graph is actually a function. If a vertical line intersects the graph in all places at exactly one point, then the relation is a function.

As you can see in the attached screenshot, every vertical line drawn only has 1 point in it. This means that each x-value corresponds to exactly one y-value. The given relation passed the VLT. Therefore, the relation is a function.


Please mark my answers as the Brainliest if you find my explanation helpful :)

5 0
2 years ago
A car is moving at 65 miles per hour. How many feet can it travel in one second?​
d1i1m1o1n [39]

Answer:

63

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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