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Aleonysh [2.5K]
3 years ago
5

15 POINTS! PLEASE HELP!

Mathematics
2 answers:
lara [203]3 years ago
8 0
So this would be F(-9)=-(-9)(2)-10(-9)-2 --------
9(2)-10(-9)-2 ----------- 18+90-2 ----------- 108-2+ 106.
So the answer to this equation is 106.

Nina [5.8K]3 years ago
4 0
Plug in -9 where there is a x
-(-9)^2 -10 (-9) -2
X=7
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PLEASE HELP WITH THIS QUESTION, WILL MARK BRAINLIEST + 10 POINTS<br> #17
slega [8]
Sin 30 = 16/x
x = 16/sin 30 = 32
The answer is d: 32.
3 0
3 years ago
10 men working for 6 days can complete 5 copies of a book if there are 8 men working to complete 4 copies of the book how many d
Musya8 [376]

Answer:

6 Days

Step-by-step explanation:

Practically:

It takes,

10 Men ( complete ) 5 Copies --> 6 Days

So, 2 Men can complete 1 copy in 6 days.

Question asks us :

8 Men ( complete ) 4 Copies --> X Days

It will take 6 days because the proportion of men to copies is same as the first equation.

Theoretically:

10 Men 5 Copies 6 Days

8 Men   4 Copies  X Days

> 6/X = 8/10 ( If men decrease the number of days increase. So, it is an indirect proportion. ) . 5/4 ( If copies decrease the number of days decrease as well. So, it is a direct proportion. )

> 6/X = 8/10 . 5/4

> 6/X = 40/40

> 6/X = 1

<h2>> X=6</h2><h2></h2><h2><em>I hope it will be understood.</em></h2><h2><em>If I have any inaccuracies please let me know.</em></h2><h2><em>Have a nice day and never stop questioning!</em></h2><h3><em></em></h3>

6 0
3 years ago
Read 2 more answers
Plzz help me im going to most more like this because im not understanding it
lisov135 [29]
Hi there!

In order to solve, you can use substitution. This means that you use one equation and solve for one variable, then use that one equation and plug it into the other equation. Here's how we'd do it:

WORK:
x = 12 - y (since x is already solved for, we'll use that to plug into the other given equation.
2(12 - y) + 3y = 29 (using substitution)
24 - 2y + 3y = 29
24 + y = 29
y = 5
Plug the value of y back into the first equation
x = 12 - 5
x = 7

ANSWER:
A - x = 7, y = 5

It seems as though you're having some trouble with these questions, PLEASE MESSAGE ME!! I'd be more than happy to help you work through as many problems as you need until you get the hang of it (plus, it doesn't cost you any points!)

Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
5 0
3 years ago
A scuba divers dove 950 feet below the surface in 19 minutes what integer represents the average rate of change for this dive?
NeTakaya
"950 feet in 19 minutes" can be expressed as the rate  (950/19) (ft/min), and is negative because the diver is descending (going downward).

Simplifying, -950/19 (ft/min) = -50 (ft/min)
6 0
3 years ago
A receipe calls for 3/8 cup of chocolate chips and 1 1/2 cups of walnuts. Tameka wants to double the recipe. How many cups of wa
kirill115 [55]

Answer:

3 cups

Step-by-step explanation:

1 1/2 + 1 1/2 = 3

8 0
3 years ago
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