All categories

3 years ago

The area between z = -1.25 And z = 0.32

Mathematics

1 answer:

Vilka [71]3 years ago

5 0

Answer:

there a answer I'm not good in math

You might be interested in

Help help math math math

Sergeu [11.5K]

Answer:

Step-by-step explanation:

substitute -8 into x.

f(-8)=-8+18=10

7 0

2 years ago

What are the roots of y = x - 3x – 10? -3 and -10 -2 and 5 2 and -5 3 and 10

olga55 [171]

Answer:

-2 and 5

Step-by-step explanation:

If roots of a quadratic are "a" and "b", then (x-a) and (x-b) are factors. Then the quadratic can be written as ...

y = (x -a)(x -b) = x^2 -(a+b)x +ab

That is, the constant (-10) is the product of the roots, and the x-coefficient (-3) is the opposite of their sum.

In short, you want a solution pair that has a sum of 3. Only one answer qualifies: -2 and 5.

3 0

3 years ago

write a number that belongs to the sets of rational numbers and integers but does not belong to the set of whole numbers.

ira [324]

-10. It is negative, so it it not a whole number. It can be written as a ratio, so it is rational.
Hope that helped you!

5 0

3 years ago

a lunch stand makes a $.75 profit on each chef's salad and $1.20 profit on each caesar salad. On a typical weekday, it sells bet

tangare [24]

Answer:

50 Chef's salads and 50 Caesar salads should be prepared in order to maximize profit.

Step-by-step explanation:

Suppose, the number of Chef's salad is $x$ and the number of Caesar salad is $y$

On a typical weekday, it sells between 40 and 60 Chefs salads and between 35 and 50 Caesar salads.

So, the two constraints are: $40\leq x\leq 60$ and $35\leq y\leq 50$

The total number sold has never exceed 100 salads. So, another constraint will be: $x+y\leq 100$

According to the graph of the constraints, the vertices of the common shaded region are: $(40,35), (60,35), (60,40), (50,50)$ and $(40,50)$ (Refer to the attached image for the graph)

The lunch stand makes a $.75 profit on each Chef's salad and $1.20 profit on each Caesar salad. So, the profit function will be: $P=0.75x+1.20y$

For (40, 35) , $P=0.75(40)+1.20(35)=72$

For (60, 35) , $P=0.75(60)+1.20(35)=87$

For (60, 40) , $P=0.75(60)+1.20(40)=93$

For (50, 50) , $P=0.75(50)+1.20(50)=97.5$ (Maximum)

For (40, 50) , $P=0.75(40)+1.20(50)=90$

Profit will be maximum when $x=50$ and $y=50$

Thus, 50 Chef's salads and 50 Caesar salads should be prepared in order to maximize profit.

6 0

4 years ago

Factor the expression

Alex777 [14]

Factor the equation using difference of squares, which says that a^2-2ab+b^2=(a-b)^2.

a is 2 since the square root of 4 is 2 and b is 5 because the square root of 25 is 5.

Final answer: (2x-5y)^2

8 0

3 years ago