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katrin2010 [14]
2 years ago
5

I am literally so sorry but I DON'T UNDERSTAND THIS IN MY MATH CLASS! PLEASE HELP

Mathematics
2 answers:
STALIN [3.7K]2 years ago
7 0

Answer:

− 1.9 f − 25

Step-by-step explanation:

You have to simplify the terms -2.3f + 0.4f and  16 - 9

hope this helped :))

zaharov [31]2 years ago
6 0
I think the answer is -2.7f-25 because if you subtract -2.3 F + .4 F then you do -16-9 I could be wrong warning
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This is embarrassing...help❤️❤️❤️❤️
BaLLatris [955]

Answer:

Step-by-step explanation:

P(green) is asking what are the chances that if your stuck your hand into the bag and grabbed a marble that it would be green. There are 3 green, 2 blue, 1 red, and 1 white marble for a total of 7 marbles. If you pull out a marble without looking you have 3 chances of 7 that it will be green. So

10. 3/7 or 3:7

Do we even have any yellow marbles? Not that I can see, so if there isn't a yellow to pull out, your chances of pulling one out is 0. So

11. 0/7 or 0

Since there are 3 green and 1 red, which is a total of 4 marbles, we have 4 out of 7 chances that the marble we pull is red or green. So

12. 4/7 or 4:7

7 0
3 years ago
Please help.........​
AnnyKZ [126]

Answer:

A) p(male)=20/30=2/3

b) p(female) = 10/30=1/3

c) p(11th grade) = 12/30=2/5

d) p(12th grade) = 18/30 = 3/5

e) p( girl and in 11th grade) =4/30=2/15

F) p(12 th grade and female) = 6/30 = 1/5

g) p(male and in 12th grade) = 12/30 = 2/5

h) p(male and if we know the student is female) = 0 if we know the student is male then she can't be male again. these are mutuallyinclusive event and they can't occur at once.FOR more details and solutions,clarification and more explanation contact me via my g mail at [email protected] and I will keep in touch....please leave your comment in thisg mail which is my tutor g mail account please.

7 0
3 years ago
What is the sequre of 9?
Vesna [10]

Answer:

3

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A summer camp has 400 ft of float line with which to rope off three adjacent rectangular areas of a lake for swimming? lessons,
Rashid [163]

Answer:

a) A = x*(400 - 4*x)

b) domain of function A(x) is ( 0 , 100 )

c) dimension of swimming section x = 30 ft maximizes area.

Step-by-step explanation:

Given:

- Total length of float-line used L = 400 ft

- Inner sections length x

Find:

a) Express the total area A as a function of x

b) Find the domain of the function

c) Using the graph, find the dimensions that leads to largest area

Solution:

- The amount of side length of the rectangle can be calculated from the total length given y:

                                 y = L - x - x - x - x

                                 y = L - 4*x

                                 y = 400 - 4*x

- The area of a rectangle is as follows:

                                 A = x*y

- Replace y with the expression derived first:

                                A = x*(400 - 4*x)

- To find the domain of the function we know that A >= 0:

                                 400*x - 4x^2 > 0

                                 x(400 - 4x) > 0

                                 x > 0 , 400 - 4*x < 0

                                 x < 100

- Hence, the domain of function A(x) is ( 0 , 100 )

- From the graph given, we can see that Area is maximum when x = 30 ft. Denoted by the turning point of the graph.

- Hence, the dimension of swimming section x = 30 ft maximizes area.

5 0
3 years ago
What is the area of a square with a perimeter of 64 mm
pashok25 [27]

Answer:

A =256 mm^2

Step-by-step explanation:

The perimeter of a square is given by the formula

P = 4s where s is the length of a side

64 = 4s

Divide each side by 4

64/4 =4s/4

16 = s

To find the area of a square, use the formula

A =s^2

A = 16^2

A =256 mm^2

5 0
3 years ago
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