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jeka57 [31]
2 years ago
6

Find all values of x that satisfy the equation

Mathematics
1 answer:
zlopas [31]2 years ago
6 0
Factor an x^2 out,
x^2 ( 5x^2 -7x -4)
Can't factor the quadratic, but graphing or quadratic formula yields,
the zeroes are 0, -0.4358, 1.8358
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A wheel has 10 equally sized slices numbered from 1 to 10.
Ksenya-84 [330]

The random probability of event X, wheel stopping on a white slice is 0.9 while the probability of not X, wheel stopping on Grey slice is 0.1

  • Total numbers on wheel = total possible outcomes = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

  • Grey colored portion = {3}

  • White colored portion = {1, 2, 4, 5, 6, 7, 8, 9, 10}

  • X = Event that wheel stops on a white slice

  • P(X) = number of white slices ÷ total number of slices

  • P(X) = 9 / 10 = 0.9

  • P(not X) = 1 - P(X)

  • P(not X) = 1 - 0.9 = 0.1

Therefore, the probability that wheel stops on a white slice is 0.9 while, the probability that wheel does not stop on a white slice is 0.1

Learn more :brainly.com/question/18153040

4 0
3 years ago
A textbook store sold a combined total of 260 chemistry and physics textbooks in a week. The number of chemistry books sold was
Lynna [10]

Let:

x = Chemistry textbooks sold

y = Physics textbooks sold

The textbook store sold a combined total of 260, so:

x+y=260

The number of chemistry books sold was three times the number of physics textbooks sold, so:

x=3y

Let:

\begin{gathered} x+y=260_{\text{ }}(1) \\ x=3y_{\text{ }}(2) \end{gathered}

Replace (2) into (1):

\begin{gathered} 3y+y=260 \\ 4y=260 \\ y=\frac{260}{4} \\ y=65 \end{gathered}

Replace the value of y into (2):

\begin{gathered} x=3(65) \\ x=195 \end{gathered}

5 0
1 year ago
All points having an x-coordinate of 1 whose distance from the point (-3,-6) is 5
vazorg [7]

Answer:

They'll  \: be  \: on  \: the \:  circle:

(x+3)^2+(y+6)^2=25

x=1

(y+6)^2=9

y + 6 = 3

y = -3

(1,-3)

y + 6 = -3

y = -9

(1,-9)

Step-by-step explanation:

Thank \:  you!!!!!!

6 0
2 years ago
Simplify (9x + 10) - (7x + 8)
Ilia_Sergeevich [38]

Answer:

2x+2

Step-by-step explanation:

of symbols, representing a value, o relation. example 2+2=4

8 0
3 years ago
Item 3<br> Is this function linear or nonlinear?<br><br> y=2x²−4<br><br> linear<br><br> nonlinear
kodGreya [7K]

Answer:

B.nonlinear

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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