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Nuetrik [128]
2 years ago
8

Please helpppppp -3x-42>3 And show work

Mathematics
1 answer:
lidiya [134]2 years ago
3 0

Answer:

Step-by-step explanation:

-3x-42 > 3

Add 43 to both sides

-3x>45

Divide both sides by -3

x>-15

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A die with six faces has the number 1 painted on three of its faces, the number 2 painted on 2 of its faces, and number 3 on one
salantis [7]

Answer:

a) S = {1, 2, 3}

b) P(odd number) = \frac{2}{3}

c) No

d) Yes

Step-by-step explanation:

a) The sample space is the set of all possible outcomes. By definition, the elements of a set should not be repeated. Hence, the sample space S = {1, 2, 3}

However, the sample is not equiprobable because each element has different probabilities.

b) P(odd number) = \frac{number of odd digits}{number of faces}=\frac{4}{6}=\frac{2}{3}

Note that the odd numbers are 1 (on three faces) and 3 (on one face).

c) The fact the die has been biased does not change the possible outcomes. It only changes the probability of getting any given number.

d) Because the 3-face has been loaded, this probability changes. In fact, it is calculated thus:

Let's assume the probability for 1 or 2 is x. Then that of 3 is 2x(because it is twice the others). The sum of probabilities must be 1.

x+x+x+x+x+2x=1

7x=1

x=\frac{1}{7}

P(odd number) = 3\timesProb(1) + Prob(3)

= 3\times\frac{1}{7}+\frac{2}{7} = \frac{5}{7}

7 0
3 years ago
Plzz Help ASAP!! i posted the picture?
Andre45 [30]

Hi!


So the original formula for a problem likes this or a quadratic is:


ax^2 + bx+ c


so a is the accelaration; b is the initial velocity; and c is the initial height


so none of those are the zeros, which means c is out


zeros are the x values when y is 0, that also means when the parabola crosses the x axis


so d is out too because the maximum height is the vertex which mean that there would probably be a y value. in some cases the vertex is the zero, but not here


B is out because x isn't time it is distance

your answer is A!


Hope this helps!

8 0
2 years ago
Read 2 more answers
Add 238 and 12, then multiply by 3. Interpret the expression.
Volgvan

Answer:

3(238+12) is the expression

Step-by-step explanation:

hope this helps

4 0
3 years ago
Read 2 more answers
What's it take for someone to help me with this problem ;-;
Colt1911 [192]

Answer:

x = 8 degrees

Step-by-step explanation:

The thing in red says "vertically opposite"

3 0
3 years ago
Please HELP!<br> How do I factorise 2x^2 - 11x -6x <br> please include working <br> Thanks!
Harrizon [31]

Answer:

x(2x-17)

Step-by-step explanation:

2x^2 -11x-6x

2x^2-17x

x is common

x(2x-17)


6 0
3 years ago
Read 2 more answers
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