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3 years ago

Which is the 2nd term when 3+2x^2-3x^4+x^3 is Arranged in descending order.

Mathematics

1 answer:

AlladinOne [14]3 years ago

4 0

I think the answer is B.

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7. The measures of the angles in a triangle are in the extended ratio of 3:4:5. Find the

Mashcka [7]

Answer:

Below.

Step-by-step explanation:

Angle 1 = (3/(3+4+5) * 180 = 3/12 * 180

= 45 degrees.

Angle 2 = 4/12 * 180 = 60 degrees.

Angle 3 = 5/12 * 180 = 75 degrees.

6 0

3 years ago

Historically, the proportion of people who trade in their old car to a car dealer when purchasing a new car is 48%. Over the pre

artcher [175]

Answer: The proportion of new car buyers that trade in their old car has statistically significantly decreased.

Step-by-step explanation:

Since we have given that

p = 48% = 0.48

n = 115

x = 46

So, $\hat{p}=\dfrac{46}{115}=0.40$

So, hypothesis would be

$H_0:\ p=\hat{p}\\\\H_a:p$

So, test value would be

$z=\dfrac{p-\hat{p}}{\sqrt{\dfrac{p(1-p)}{n}}}\\\z=\dfrac{0.48-0.40}{\sqrt{\dfrac{0.48\times 0.52}{115}}}\\\\z=\dfrac{0.08}{0.0466}\\\\z=1.72$

At 10% level of significance, critical value would be

z= 1.28

Since 1.28 < 1.72

So, we will reject the null hypothesis.

Hence, the proportion of new car buyers that trade in their old car has statistically significantly decreased.

6 0

4 years ago

Consider the table below that represents a quadratic function.

zlopas [31]

It would be -1/2 because the formula to find slope (rate of change) is (y2-y1)/(x2-x1) and in this case it would be (4.5-2)/(-3--2) which simplifies to (2.5)/(-5) which is -1/2

6 0

3 years ago

One-half the sum of x,y, and z

BabaBlast [244]

The keyword is "sum" which tells you x, y, and z are being added. One half of the sum means that the sum of the three numbers is going to be divided by 2.

x + y + z
------------
2

3 0

3 years ago

How to do 264 in Expanded form

Setler [38]

Answer:

200+60+4

Step-by-step explanation:

200+60+4=264

6 0

3 years ago