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bija089 [108]
2 years ago
8

Which of the following are not trigonometry identities? Check all that apply

Mathematics
1 answer:
Anni [7]2 years ago
6 0
B and A

That’s the answer bro trust xx
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In josh’s classroom the teacher has 625 pencils to pass out to 25 students. If the same number of pencils is given to each stude
stiv31 [10]

Answer: 25 pencils each

8 0
2 years ago
Read 2 more answers
H(x) = x3 + 7<br> Determine whether the function is one-to-one.
zubka84 [21]

Answer:

we conclude that the function is one-to-one.

Step-by-step explanation:

A function will a one-to-one function if it

  • passes the vertical line test to make sure it is indeed a function, and
  • also a horizontal line test to make sure it is it one-to-one.

In other words,

The function will be one-to-one if it passes the vertical line test, and also if the horizontal line only cuts the graph of the function in one place.

The reason is that there must be only one x-value for each y-value.

Given the function

h\left(x\right)\:=\:x^3\:+\:7

Have a look at the attached graph.

  • The red portion represents the graph of the function h\left(x\right)\:=\:x^3\:+\:7.
  • The green portion represents the graph of x=2 which is basically a vertical line test. Vertical line indicates that it cuts the cuts the graph of the function in one place. So it is clear that h\left(x\right)\:=\:x^3\:+\:7 is indeed a function.
  • The blue line represents the graph of y=9, which is basically a horizontal line test. Horizontal line indicates that it cuts the cuts the graph of the function in one place. So it is clear that h\left(x\right)\:=\:x^3\:+\:7 is a one-to-one function, as there is only one x-value for each y-value.

Therefore, we conclude that the function is one-to-one.

6 0
3 years ago
What is 18 percent of 28 dollars
bixtya [17]
If something costs $28<span> and is on sale for </span>18<span>% off, then how much would it cost?
</span>
5.04 U.S. dollars
6 0
3 years ago
Read 2 more answers
Which property explains the step shown in solving the equation?8x − 15 + 6x = 10x − 18 ⇒ 8x + 6x − 15 = 10x − 18
vlada-n [284]

Answer:

Taybrownies1359Step-by-step explanation:

np

7 0
3 years ago
Help help help help
nikitadnepr [17]

Answer:

m=25w+80

Step-by-step explanation:

m=money

w=weeks

280-130=150

150/6=25 this is how much she earns per week

25*2=50 this is how much she earned in two weeks

130-50=80 this is how much she had before she worked

m=25w+80

plug in to check:

(25*2)+80=130

(25*8)+80=280

4 0
2 years ago
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