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Stells [14]
3 years ago
8

Plz help me and answer right

Mathematics
2 answers:
kozerog [31]3 years ago
7 0
I’m not sure if this is right but I tried...

The Equation you are going to use: P(event)=number of favorable outcomes/total number of possible outcomes

1. Equal to
The probability of rolling a 4 is 1/6. There is 1 favorable outcome and 6 possible outcomes. The frequency of rolling a 4 after 90 times is 15/90 which is equal to 1/6. Therefore equal to.

2. Greater than
The probability of rolling a number less than 4 is 3/6 or 1/2. After 90 times, the outcome was 46/90 which simplified is 23/45. Half of 45 is 22.5 and 23 > 22.5.

3. Less than
The probability of rolling a multiple of 3 is 2/6 or 1/3. After rolling the cube 90 times, the outcome was 24/90 which simplified is 4/15. 1/3 of 15 is 5. 4 < 5. Therefore, less than.

Hope this helps!!!!
azamat3 years ago
3 0
I think it might be 30 but I don’t know
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Y=2x + 4<br> y = 2(x + 2)<br> what is x
Oxana [17]

Answer:

I believe 1.) is x=y-4/2 and 2.) x=y-4/2 as well

Step-by-step explanation:

1.)

y=2x+4

-subtract 4 on both sides-

y-4=2x

-divide 2 on both sides-

x=y-4/2

2.)

y=2(x+2)

-distribute the 2-

y=2x+2

-subtract 2 on both sides-

y-2=2x

-divide 2 on both sides-

x=y-2/4

I dont know exactly if this is correct, but i hope it helps! :)

4 0
3 years ago
A local furniture store is advertising a discount of 30% off of their selection of sofas. pauline wants to buy a sofa that has a
notsponge [240]
450 * 0.3 = 135 = money taken off the original price
Sale price = $315
4 0
3 years ago
I need the answer please and thank you worth 78 brainly points
Reika [66]

Answer:

8+4pi

Step-by-step explanation:

2pi(r) = 8pi

8pi/2 = 4pi

8+4pi

5 0
3 years ago
Plot the zeros of the polynomial y = x4 + 3x3 − 27x2 + 13x + 42
a_sh-v [17]

Answer:

See explanation

Step-by-step explanation:

Consider the polynomial y=x^4+3x^3-27x^2+13x+42 4th power polynomial function has at most 4 zeros.

Integer zeros can be only among the divisors of 42:

\pm1, \ \pm 2,\ \pm 3,\ \pm 6,\ \pm 7,\ \pm 14,\ \pm 21,\ \pm 42

Check them:

y(1)=1^4+3\cdot 1^3-27\cdot 1^2+13\cdot 1+42=1+3-27+13+42=32\neq 0\\ \\y(-1)=(-1)^4+3\cdot (-1)^3-27\cdot (-1)^2+13\cdot (-1)+42=1-3-27-13+42=0\\ \\y(2)=2^4+3\cdot 2^3-27\cdot 2^2+13\cdot 2+42=16+24-108+26+42=0\\ \\y(3)=3^4+3\cdot 3^3-27\cdot 3^2+13\cdot 3+42=81+81-243+39+42= 0\\ \\y(-7)=(-7)^4+3\cdot (-7)^3-27\cdot (-7)^2+13\cdot (-7)+42=2,401-1,029-1,323-91+42= 0

Thus,

y=(x+7)(x+1)(x-2)(x-3)

Zeros are plotted in attached diagram.

4 0
4 years ago
Read 2 more answers
A 27 yrr old has a budget of less than 90
FrozenT [24]

Answer: meaning the rest of the budget he dont have is 10%

4 0
3 years ago
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