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2 years ago

Mr. Borden also asked his students, How do you get to school each day ? Is this question statistical? Explain.

Mathematics

2 answers:

Katen [24]2 years ago

6 0

Answer:

That question is statistical because there can be multiple answers such as, biking, walking, carpooling, and taking a bus.

Step-by-step explanation:

Bess [88]2 years ago

3 0

I think it is statistical because each student may have a different answer not not all will be the same for example some may take public transportation, some may walk some may ride bikes or parents may drive them.

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Solve the inequality for w. 20 ≥ - 4w Simplify your answer as much as possible.

Oksanka [162]

Answer:

w $\geq$ -5

Step-by-step explanation:

-4w $\leq$ 20

4w $\geq$ -20

w $\geq$ -5

8 0

3 years ago

Jason would like to estimate the probability of heads coming up more than once in 3 coin flips. To do this, he has a computer ra

Umnica [9.8K]

The total number of tries = 10

The tries are { 110 111 100 000 101 111 100 000 011 010 }

Where: 0 representing heads and 1 representing tails

The tries which are heads came up more than once in 3 coin flips { 100 000 100 000 010 }

The number of the tries which are heads came up more than once in 3 coin flips = 5

∴ The probability of heads coming up more than once in 3 coin flips = 5/10 = 1/2

5 0

3 years ago

P(x)= 3x^3-5x^2-14x-4

nexus9112 [7]

$\displaystyle\\
P(x)=3x^3-5x^2-14x-4\\\\
D_{-4}=\{-4;~-2;~\underline{\bf -1};~1;~2;~4\}\\\\
\text{We observe that } \frac{-1}{3} \text{ is a solution of the equation:}\\
3x^3-5x^2-14x-4=0\\\\
$

$\displaystyle\\
\text{Verification}\\\\
3x^3-5x^2-14x-4=\\\\
=3\times\Big(-\frac{1}{3}\Big)^3-5\times\Big(-\frac{1}{3}\Big)^2-14\times\Big(-\frac{1}{3}\Big)-4=\\\\
=-\frac{1}{9}-\frac{5}{9}+\frac{14}{3}-4=\\\\
=-\frac{6}{9}+\frac{14}{3}-4=\\\\
=-\frac{6}{9}+\frac{42}{9}- \frac{4\times 9}{9}=\\\\
 =-\frac{6}{9}+\frac{42}{9}- \frac{36}{9}= \frac{42-6-36}{9}=\frac{42-42}{9}=\frac{0}{9}=0\\\\
\Longrightarrow~~~P(x)~\vdots~\Big(x+ \frac{1}{3}\Big)\\\\
\Longrightarrow~~~P(x)~\vdots~(3x+1)$

$\displaystyle\\
3x^3-5x^2-14x-4=0\\
~~~~~-5x^2 = x^2 - 6x^2\\
~~~~~-14x =-2x-12x \\
3x^3+x^2 - 6x^2-2x-12x-4=0\\
x^2(3x+1)-2x(3x+1) -4(3x+1)=0\\
(3x+1)(x^2-2x -4)=0\\\\
\text{Solve: } x^2-2x -4=0\\\\
x_{12}= \frac{-b\pm \sqrt{b^2-4ac}}{2a}=\\\\=\frac{2\pm \sqrt{4+16}}{2}=\frac{2\pm \sqrt{20}}{2}=\frac{2\pm 2\sqrt{5}}{2}=1\pm\sqrt{5}\\\\
x_1 =1+\sqrt{5}\\
x_2 =1-\sqrt{5}\\
\Longrightarrow P(x)= 3x^3-5x^2-14x-4 =\boxed{(3x+1)(x-1-\sqrt{5})(x-1+\sqrt{5})}$

7 0

3 years ago

Rick has $20.00. He bought a movie ticket for $5.50, a large popcorn for $3.75, a large soda for $2.75. How much money does he h

Juli2301 [7.4K]

Answer:

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

a climber starts descending from 504 feet above sea level and keeps going until she gets to 40 feet below sea level, how may fee

GenaCL600 [577]

Answer:

544 feet.

Step-by-step explanation:

|504| +|-40|=544

8 0

3 years ago