MATHEMATICS HIGH SCHOOL

For each sequence,find the first 4 terms and the 10th term.
a)3n+4
b)4n-5​

Answers

Answer 1
Answer:

Answer:

i know a good trick on how to do this.

Step-by-step explanation:

The number 4 is apart of the sequence, but it has been taken away by 3.

3+4=7. Since it was taken away by 3, we have to add 7 by 3 to get 9. So on and so forth.

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Which expression is equivalent to –2(5x – 0.75)?10x – 0.7510x + 0.75–10x – 1.5–10x + 1.5

Fraction: least to greatest...

2/3, 9/16, 0.52

Answers

The answer is .52 9/16 2/3
Your answer is: 0.52, 9/16, 2/3.  Those are your answers.

If the weights of 1,000 adult men in a county are plotted on a histogram, which curve is most likely to fit the histogram?

Answers

The correct answer for the question that is being presented above is this one: "C. a bell-shaped curve, better known as a normal distribution." If the weights of 1,000 adult men in a county are plotted on a histogram, the curve will most probably be a bell-shaped curve, better known as a normal distribution.

Here are the following choices:
A. a U-shaped curve, better known as a normal distribution
B. a star-shaped curve, better known as a normal distribution
C. a bell-shaped curve, better known as a normal distribution
D. a bell-shaped curve, known as an exponential distribution

Answer: C) a bell-shaped curve, better known as a normal distribution

Step-by-step explanation:plato only

A proposed null hypothesis states that there is no difference in the population mean heights of two neighboring districts. The difference of the sample means is 10 cm, and the standard deviation of the difference of sample means is 6 cm. Which conclusion can we draw at the 68% confidence level?

Answers

Answer:

Explained

Step-by-step explanation:

Null hypothesis is something that states that there is no difference between the population means, while the alternative hypothesis states that there is difference between the two.

So, If the difference of the sample means is 10cm, and the standard deviation of the difference of sample means is 6 cm. Then  the population means of the two districts will be different according to the manual solution.

Answer:

The population means of the two districts are different.

Step-by-step explanation:

The area of a playground is 216 yd^2. the width of the playground is 6 yd longer than its length find the length and width.A. length=18, width=12
B. length=12, width=18
C. length=18, width=24
D.length=24, width=18

Answers

Answer: B. length=12, width=18

Step-by-step explanation:

Let x = Length of the playground then width = x+6

Area of a rectangular playground = Length x width

Since , area of playground = 216\ yd^2.

Then , we have

216=(x)*(x+6)\n\n\Rightarrow\ x^2+6x\n\n\Rightarrow\ x^2+6x-216=0\n\n\Rightarrow\ x^2+18x-12x-216=0\n\n\Rightarrow\ x(x+18)-12(x+18)=0\n\n\Rightarrow\ (x-12)(x+18)=0\n\n\Rightarrow\ x=12\text{ or }x=-18

But length cannot be negative , so reject x= -18 .

Thus , the length of playground = 12 yd

Then , width = 12+6 = 18 yd

Hence, the correct answer is B. length=12, width=18
Let the length of the playground be x, then the width is 6 + x.
Area = length * width = x * (6 + x) = 6x + x^2 = 216

Solving the quadratic equation x^2 + 6x - 216 = 0, we have x = 12 or -18

i.e length = 12 and width = 6 + 18 = 18

If the ball is orange ​, then the ball bounces .

Answers

what is the question and where is the answers

Why dA = r dr d(theta)?

Answers

for dA in  a circle, the r  value varies ,  but its area is still rdrd(theta) but r (and theta) differs depending where the region is
and the regions could be any regions as long as it is a continuous region

hope this helps
 
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