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kodGreya [7K]
3 years ago
14

(5x + 7x²-x) + (8x² + 4x-5) solve the problem

Mathematics
2 answers:
stepan [7]3 years ago
7 0
The answer to the questions is :152+8−5
Brrunno [24]3 years ago
6 0

Answer:

=15x2+8x−5

Step-by-step explanation:

Do you need an explanation!!

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A chemical reaction converts a substance Ato a substance Y. At the start of the reaction, the quantity of A present is a grams.
galben [10]

Answer:

y

Step-by-step explanation:

4 0
3 years ago
PLEASE HELP!! ITS URGENT!!
Iteru [2.4K]

All solutions to the equation 3 cos (5t) + 3 = 2 in the interval from 0 to π will be 0.3821, 0.2462, and 0.8745. Then the correct option is A.

<h3>What is trigonometry?</h3>

The connection between the lengths and angles of a triangular shape is the subject of trigonometry.

The equation is given below.

3 cos (5t) + 3 = 2

By simplifying the equation, then we have

3 cos 5t = -1

   cos 5t = -1/3

Then the value of t will be

5t = 1.91063, 1.12096, 4.3725

 t = 0.3821, 0.2462, 0.8745

Then the correct option is A.

More about the trigonometry link is given below.

brainly.com/question/22698523

#SPJ1

3 0
3 years ago
find the mean, median, mode, and midrange. Then decide which you think is the most meaningful measure of average for that data s
marshall27 [118]

Answer:

mean = 254.6

median = 120

mode = 60

midrange = 958

For average data sets i prefer by finding the mean

Step-by-step explanation:

mean :

(98+120+493+206+73+102+183+870+76+60+60+112+147+1018+201) ÷ 15 = 254.6

median : 60 60 73 76 98 102 112 120 147 183 201 206 493 870 1018

find the middle number

= 120

mode :

number that is more than one

= 60

midrange :

highest number - smallest number

= 1018 - 60

= 958

3 0
3 years ago
Read 2 more answers
Which of the following is the most appropriate unit to describe the rate at which a person reads?
Maksim231197 [3]
B. The independent quantity is definitely not the words cause' of you think about it the number of words depends on the number of minutes.
5 0
3 years ago
Read 2 more answers
The graph of y=3x^2-3x-1 is shown. Use the graph to find estimates for the solutions of i)3x^2-3x+2=2 ii) 3x^2-3x-1=x+1
AlexFokin [52]

Answer:

i) (0, 2) and (1, 2), ii) (0.333, 1.333) and (1, 2).

Step-by-step explanation:

i) Let be y=3\cdot x^{2}-3\cdot x -1, if 3\cdot x^{2}-3\cdot x +2 = 2, which is equivalent to the following system of equations:

y = 3\cdot x^{2}-3\cdot x +2

y = 2

Now, this system is now represented by means of a graphing tool and whose outcome is attached below. There are two solutions: (0, 2) and (1, 2)

ii) Let be y=3\cdot x^{2}-3\cdot x -1, if 3\cdot x^{2}-3\cdot x +2 = x+1, which is equivalent to the following system of equations:

y = 3\cdot x^{2}-3\cdot x +2

y = x+1

Now, this system is now represented by means of a graphing tool and whose outcome is attached below. There are two solutions: (0.333, 1.333) and (1, 2)

7 0
4 years ago
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