Question Help▼ A math teachor claims that she has developed a review course that increases the scores of students on the math portion of a college entrance exam. Based on data from tho administrator of the exam, scorec ar nomally distnbutud with p=512. The teachor obtains a random sample of 2200 students, puts thom through the review class, and finds that the moan math score of the 2200 studento is 519 with a standard deviation of 117. Complotu parte (a) through (d) below (a) Stato the null and alternative hypotheses. Let u bo the moan scoro. Choose the correct answer bolow O A. Ho: =512, H, p4512 O B. Hn <512, H, >512 c. Ho: -512, H,: > 512 O Đ. Họ >512. H, p4512 (b) Test the hypothesis at the u-0 10 lovel af significance le g mean math store of 519 slatisfically signihcantly higher than 512? Conduct a Irypothesis test using tho P-value approach. Find the toct statistic. (Round to two decimal places ao needed)

Q: Add. 4 5/8 + 4 4/7

A:

Q: If A = A−¹ . 9 7 1 0 1 5 00 01

A: The matrix is given byTo determine: The inverse of the given matrix.Formula used:

Q: (3) dx x 1+√x

A:

Q: Simplify. 10m n² 5mn4

A: To simplify the below expression.

Q: Simplify. v-7 2- 14v+ 49 ?

A:

Q: 49 19 P N

A:

Q: Simplify. 4

A: Power rule:   The power rules says that,

Q: 20の+ 7=130p+5

A:

Q: b 1. D = c d

A: Determinant of a matrix is a number that is a function of the entries of the matrix. Determinant is…

Q: R 7 6.4 6. a

A: For similar triangle, ratio of corresponding sides are equal

Q: c. By Partial fraction: 1+b4 db £q+96

A:

Q: Simplify F IG1 a. -1 b7 O b. 1 b7 C. 7 b7 O d. b7

A:

Q: Find B- A. 79 A = - 9 B%3= 6. 2 4 9. 2.

A:

Q: 4. w/- 4. 2.

A: Given:

Q: 52 +9

A: Given,  is the inverse Laplace equation. We have to find the solution as follows:

Q: T-1.3 5.8 +2.6 1.6 + 3.7 3- 4.3

A:

Q: r dz dr de.

A:

Q: Given the graph of the following equation, what is the solution? √x+27= x-3 18 6

A:

Q: V 48° 2 38° Z.

A: The given circle is: As we know the sum of angles of a triangle is 180°.

Q: Simplify. 4d+d+6d

A: NOTE: Refresh your page if you can't see any equations. . factor out d

Q: Simplify. - 1 (3a "") (За За

A:

Q: VE Gx+5

A:

Q: 11V-6 11V2

A: We have given  11√-6/11√2

Q: T. 92일

A: The sum of any two adjacent angles of a quadrilateral is equal to 180°.

Q: Find BA. A= BA= ☐ 3 2 || 7 B -6-3 3 0

A:

Q: V-30 V10

A:

Q: Cahcuha le O+20 A

A: Given CO is perpendicular to AO Therefoe ∠COA = 90°  ∠COB = 4θ-30°   and  ∠BOA = θ+20° Also here…

Q: 4. Find L t4ent

A: H

Q: (a +3)2 = 25 %3D

A:

Q: xy o y?.

A:

Q: 6. Evaluate. (-125) } a. 25 b. -25 C. 5 d. -5

A:

Q: [5 a = 1 b = [308] Calculate the following products and sums or give reasons why they are not…

A: according to our guidelines we can answer only three subparts, or first question and rest can be…

Q: Evaluate. x°dx O A. + C 1 O B. gx9 +C O C. 9x9 + C O D. 8x7 +C

A: Topic: integration

Q: Write .39 in words.

A: Convert number to words

Matrices

‘Matrices’ is the plural form of the word matrix, and it is basically a spreadsheet in the form of a box. In mathematics, various functions can be carried out with matrices. Generally, a matrix comes in the shape of a square or rectangle. The elements are distributed horizontally in the form of rows, and vertically in the form of columns.