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kicyunya [14]
3 years ago
15

PLEASE HELP!!! Will give brainliest

Mathematics
2 answers:
Dvinal [7]3 years ago
5 0

Answer:

times each other

Step-by-step explanation:

times by each other

Tcecarenko [31]3 years ago
3 0
For perimeter just add the sides up.
a) P = 57 + 41 + 57 + 41 = 196 in
Ignore the 36 because it is not an edge
b) P = 56 + 73 + 92 = 221 in

For areas look for measurements at right angles and multiply them.
a) A = 57 x 36 = 2052 in^2
b) A = 1/2 x 56 x 73 = 2044 in^2
The half is needed because all triangles are half the area of a rectangle.
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The night watchman in a factory cannot guard both the safe in back and the cash register in front. The safe contains $6000, whil
Zolol [24]

Answer:

The guard should be positioned at the safe

Step-by-step explanation:

The night watchmen should be positioned to guard whichever place gives the highest expected value to the thief.

The expected value of robbing the safe is:

EV_{s} = \$ 6000*0.2\\EV_{s} = \$ 1200

The expected value of robbing the cash register is:

EV_{r} = \$ 1000*0.8\\EV_{r} = \$ 800

Therefore, the guard should be positioned at the safe since it yields a higher expected value to the thief in case he tries to rob it.

7 0
3 years ago
Kelly earns a 7% commission on the total amount of her sales. This year, she had $210,000 in sales. How much commission did Kell
egoroff_w [7]
210,000 x .07 = 14,700 commission
4 0
3 years ago
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If f(x)= 3/x+2- square root x-3, complete the following statement: f(19)=
I am Lyosha [343]

f(7)≈1.6666                Please mark me as brainliest

round

f(7)=1.67

The domain of the function is the set of all the values of x that would allow the function to have real values. Since the radicand is x - 3, the value of x cannot be less than 3 because that would make the value of sqrt (x - 3) an imaginary number. Thus, the domain should be all numbers GREATER than or equal to 3.

8 0
3 years ago
f(x) = x4 - 50x2 + 3 (a) Find the intervals on which f is increasing. (Enter the interval that contains smaller numbers first.)
shtirl [24]

Answer:

  (-5, 0) ∪ (5, ∞)

Step-by-step explanation:

I find a graph convenient for this purpose. (See below)

__

When you want to find where a function is increasing or decreasing, you want to look at the sign of the derivative. Here, the derivative is ...

  f'(x) = 4x^3 -100x = 4x(x^2 -25) = 4x(x +5)(x -5)

This has zeros at x=-5, x=0, and x=5. The sign of the derivative will be positive when 0 or 2 factors have negative signs. The signs change at the zeros. So, the intervals of f' having a positive sign are (-5, 0) and (5, ∞).

5 0
3 years ago
Sam counted out loud by 6s . Jorge counted out loud by 8s. What are the first three numbers both Sam and Jorge said
IrinaK [193]
Sam:6,12,18 Jorge:8,16,24
4 0
3 years ago
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