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jeyben [28]
3 years ago
9

Make a tree diagram to show sample space. Then select the total number of outcomes.

Mathematics
2 answers:
liraira [26]3 years ago
7 0

Answer:

C. 15

Step-by-step explanation:

Five number choices, and each of those has 3 possible outcomes of color

5 x 3 = 15

34kurt3 years ago
5 0
The answer is 20 not 5 or 15 or 10
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Question Help
Vlad1618 [11]

Answer:

I think its going to be (b)

7 0
3 years ago
Function or not a function?
ivanzaharov [21]

Answer:

not a function because the points' x-values repeats

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Help please? It’s math.
Umnica [9.8K]
Answer:
X = 7/5
when the value of x is 7/5 the equation will be true
Step-by-step explanation:
To fine the value of x that makes the equation true, we equate the expression to zero to find the value of x.
Check attachment for processes
Therefore when the value of x is 7/5 the equation will be true
8 0
3 years ago
Please help!! What Find the Error and explain why it is wrong!
Nata [24]

Answer:

First image attached

The error was done in Step E, because student did not multiply 2\cdot x -8 by the negative sign in numerator. Step E must be \frac{2\cdot x -5}{(x+4)\cdot (x-4)}.

Second image attached

The error was done in Step C, because the student omitted the 2\cdot a \cdot b of the algebraic identity (a+b)^{2} = a^{2}+2\cdot a\cdot b +b^{2}. Step C must be 5\cdot x = x^{2}+4\cdot x + 4

Step-by-step explanation:

First image attached

The error was done in Step E, because student did not multiply 2\cdot x -8 by the negative sign in numerator. The real numerator in Step E should be:

3-(2\cdot x -8)= 3-2\cdot x+8 = 11-2\cdot x

Hence, Step E must be \frac{2\cdot x -5}{(x+4)\cdot (x-4)}.

Second image attached

The error was done in Step C, because the student omitted the 2\cdot a \cdot b of the algebraic identity (a+b)^{2} = a^{2}+2\cdot a\cdot b +b^{2}. Step C must be 5\cdot x = x^{2}+4\cdot x + 4

And further steps are described below:

Step D

x^{2}-x+4 = 0

Which according to the Quadratic Formula, represents a polynomial with complex roots. That is: (a = 1, b = -1, c = 4)

D = b^{2}-4\cdot a\cdot c

D = (-1)-4\cdot (1)\cdot (4)

D = -17 (Conjugated complex roots)

Step E

(x-0.5-i\,1.936)\cdot (x-0.5+i\,1.936) = 0

Step F

x = 0.5+i\,1.936\,\lor\,x = 0.5-i\,1.936

8 0
3 years ago
A circular mirror has a circumference of 30 pi inches. What is the area of mirror?
Aleonysh [2.5K]

Answer:

Step-by-step explanation:

circumference = 2πr

2πr = 30π inches

r=\frac{30\pi}{2\pi}=15in

Area = πr² = π*15*15 = 225π square inches

6 0
3 years ago
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