A В D E F G H K M N P 1 n Type of test H. 2 df Ho The U.S. Department of agriculture reports that the mean cost of raising a child from birth to age 2 in a rural area is $9405.You believe this value is incorrect, so you select a random sample of 900 children (age2) and find that the mean cost is $9290 with a standard deviation of $1540. At a = 0.05. Is there enough 3 alpha 4 alpha/2 5 He Test statistic 7 evidence to conclude that the mean cost is different from $9405? o or s critical value (s) FOR ALL THE QUESTIONS, USE BOTH THE P-VALUE 10 APPROACH AND THE CRITICAL VALUE METHOD 1 p-value 2 0/sqrt(n) 13 |4 decision

Q: Find x.

A: Sum of exterior angle of a polygon is 360°.

Q: x+2x-3 =0

A: It is given that,        x23+2x13-3=0we have to find the value of x.

Q: please show all steps

A: The given definite integral is

Q: đ = , b = , = , d = Find đ +?

A: Given,  a→ = 2, 4b→ = -3, 5c→ = 1, -4d→ = -5, -3 We have to find a→+ c→.

Q: 22 V2 V3

A:

Q: Simplify. (x+ 9)^2

A: (x+9)^2 means two (x+9) multiplies together.

Q: find the difference quotient  y=x^2+x

A:

Q: use x for the veriable  the difference of two times a number and five is eight

A: The given statement is “the difference of two times a number and five is eight”.

Power Operation

Power operation is topic of algebra in Math. It is use to represent repeated multiplication. Very big number and very small number can be easily express using power operation. Power operation is useful in many fields. In space engineering, it helps in representing the distance or size of particular heavenly body. In medical field, it is used to represent very small size. In medical field it helps to mention size of bacteria or virus. 

Exponents

The exponent or power or index of a variable/number is the number of times that variable/number is multiplied by itself.