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2 years ago

F(x) = 2x(x2 + 5)(3x – 5)

Mathematics

1 answer:

vesna_86 [32]2 years ago

5 0

Im not sure if it's right but here you go!

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) A store is having a 30% off sale. Michelle uses the expression 0.7p and Stuart uses the expression p-0.3p. Who is using the co

Aleonysh [2.5K]

Answer:michelle

Step-by-step explanation: it is 70% of the cost since it’s 30% of the original

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2 years ago

Do consumers spend more on a trip to Store A or Store B? Suppose researchers interested in this question collected a systematic

FinnZ [79.3K]

Answer:

We can be 95% confident that consumers spend between $4.04 and $15.96 less at Store A than the consumers spend at Store B.

Step-by-step explanation:

Confidence Intervals give an estimate as range of values for a statistic concerned at a confidence level.

In this case the statistic is the mean difference between Store A and Store B purchase amounts and the confidence level is 95%.

Confidence Interval can be calculated using M±ME where

M is the sample mean difference between Store A and Store B purchase amounts

ME is the margin of error from the mean

4 0

2 years ago

Find the equation of the line that is perpendicular to y = – 1 4 x – 8 and passes though the point (2, –4).

vivado [14]

The equation of the line is $y=\frac{1}{4}x-\frac{29}{7}$

Explanation:

The equation of the line is perpendicular to $y=-14 x-8$

The equation is of the form $y=mx+b$ where m=-14

Slope:

The slope of the perpendicular line can be determined using the formula,

$m_1 \cdot m_2=-1$

$-14 \cdot m_2=-1$

$m_2=\frac{1}{14}$

Thus, the slope of the line is $m=\frac{1}{14}$

Equation of the line:

The equation of the line can be determined using the formula,

$y-y_1=m(x-x_1)$

Substituting the slope $m=\frac{1}{14}$ and the point (2,-4), we get,

$y+4=\frac{1}{14}(x-2)$

Simplifying, we get,

$y+4=\frac{1}{14}x-\frac{1}{7}$

$y=\frac{1}{14}x-\frac{1}{7}-4$

$y=\frac{1}{4}x-\frac{29}{7}$

Thus, the equation of the line is $y=\frac{1}{4}x-\frac{29}{7}$

3 0

3 years ago

I need to know the steps of how they got 1 over 2

lbvjy [14]

the simplified so 9 and 18 can both be divided by 9 so 9/18 dived by 9/9 would be 1/2 you can also but 9 divided by 18 in a calculator

3 0

2 years ago

Graph the line -3x+y=-6 I need two pairs of points

snow_lady [41]

Answer:

point 1 (0,-6)

point 2(2,0)

Step-by-step explanation:

6 0

3 years ago