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Pachacha [2.7K]
3 years ago
7

Please help on this and please explain how you solved it!

Mathematics
1 answer:
gayaneshka [121]3 years ago
6 0
You start with the initial amount of rain (-11) and then work through the problem. The first part has you adding 1/2 seven times so you end up with -11 + 1/2(7) = -7.5. However it then drops 2 1/4 for three months so you do -7.5 - 2 1/4(3) = -14 1/4
You might be interested in
imagine that the recipe is doubled and that 4 cups of sugar are used use the unit rate and a to find how much flour is needed to
erica [24]

Answer:

Well, 4 doubled is 8, and with a unit rate it would be 8/1!

Step-by-step explanation:

5 0
2 years ago
Sketch the general shape of each function. Then state the end behavior of the function.
nikdorinn [45]
Both the general shape of a polynomial and its end behavior are heavily influenced by the term with the largest exponent. The most complex behavior will be near the origin, as all terms impact this behavior, but as the graph extends farther into positive and/or negative infinity, the behavior is almost totally defined by the first term. When sketching the general shape of a function, the most accurate method (if you cannot use a calculator) is to solve for some representative points (find y at x= 0, 1, 2, 5, 10, 20). If you connect the points with a smooth curve, you can make projections about where the graph is headed at either end.
 End behavior is given by:
1. x^4. Terms with even exponents have endpoints at positive y ∞ for positive and negative x infinity. 
2. -2x^2. The negative sign simply reflects x^2 over the x-axis, so the end behavior extends to negative y ∞ for positive and negative x ∞. The scalar, 2, does not impact this.
3. -x^5. Terms with odd exponents have endpoints in opposite directions, i.e. positive y ∞ for positive x ∞ and negative y ∞ for negative x ∞. Because of the negative sign, this specific graph is flipped over the x-axis and results in flipped directions for endpoints.
4. -x^2. Again, this would originally have both endpoints at positive y ∞ for positive and negative x ∞, but because of the negative sign, it is flipped to point towards negative y ∞.
3 0
2 years ago
If f(x) = x2 + 2x – 10, what is f(-2)?
Vera_Pavlovna [14]

Answer:

The answer is -18

Step-by-step explanation:

Actually if the x2 is supposed to be x^2 then it's -10

4 0
3 years ago
HELP ME PLEASE?? :( HELP ME
Crazy boy [7]
I really dislike long simplification times 4 questions so I will jsut put the answers on some of them

1. remember that the denomenator cannot equal zero so find what values will and restrict them
the answer is the third one or \frac{3}{(x+6)(x-1)}

2. second one
(3x-2)/(5x)

3. what you would do is factor the top and divide factors making ones
answer is the  fourth one or \frac{2(3x^{2}-7)}{2x^{2}+3}

4. find the LCM of the denoemators
4x and 2
4x=2 times 2 times x
2=2
LCM=4x
answer is  the third one or 4x

ANSWERS:
1. third
2. second
3. fourth
4. third
5 0
3 years ago
Need help with the domain and range
Dmitry_Shevchenko [17]

Domain is basically all of x values.

Range is basically all of y values.

That means if you want to find the domain, you can check from the coordinate-x and if you want to find the range, you can check from the coordinate-y.  

As you can see in the graph, there are the colored and non-colored dot. Both present the inequality symbol. If it's a colored circle/dot then it's either ≤ or ≥ but if it is non-colored dot then it's either > or <

From the graph, we can say that the minimum value is at -4 when x = -5

and there is no maximum value considering the x = 1 then y = 7 isn't counted due to being uncolored dot.

As mentioned, Domain is the set of all x values. We check the coordinate-x plane and notice that it begins from x = -5 to x = 1. That means it is -5≤x<1

Remember that the x = 1 one is uncolored so it's either > or < but it is < because 1 has more value than -5. Now we know the domain.

About range, we check coordinate-y plane. It starts from -4 to 7. Therefore, the range is -4≤y<7.

Therefore, <em>Domain is -5≤x<1 and Range is -4≤y<7</em>

8 0
3 years ago
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