a² +6? 7. a-b a² +b? if a = 3 and b = 48. if a = -3 and b = -5 a-b

Q: 5. If mZ2= 127°, then the mZ4 = 3 4 A) 53° B) 63° C) 127° D) 147°

A:

Q: 2) 4a? = -32 + 24a 4) 3b2 – 12b = 15 6) 4v2 + 20v= 24

A:

Q: a*b = a-b+ab then 5*6 = ?

A: Given a*b= a - b + ab To evaluate 5*6=?

Q: 4a?c²-Ca² -b²tc?)² 2 2

A:

Q: 16. 5dx If +1= 2-, what is the value of b? 4 V8x2 a.) 2 b.) 4 c.) 8 d.) 9

A:

Q: simplify each rational expression.

A: a) To simplify the expression given by; x-3y3x-9y First identify the common factor for the terms in…

Q: Find AB and BA" , given: 5 8 A = |1 0 2 7 -4 B = 2

A: The explanation of answer as follows

Q: 2. If x = -2, the value of the expression 3x? - 5x + - is - (pp. A6-A7)

A: 3x2-5x+1x Put x=-2, we get 3x2-5x+1x=3-22-5-2+1-2=12+10-12=22-12=432

Q: 2. Which of the following is equivalent to a+ A) a²+ B) a?+ 4 C) a²+- + 62 D) a²+ ab +- O A О в O D

A: We have to find the square of sum of two terms which we can find out by using standard result of…

Q: Question (Non-anonymous questionO) , х - 2х3- 3x? + 8х — 4

A: Guess  value of x for which value of polynomial is zero, then (x - a) is a factor of the polynomial.

Q: 2. Vos? |.6 = 0,8Ups - UDs? 0.6 Ups - 2

A:

Q: 24. y = x, y = 2x/(1 + x'); about x = -1 26. x? - y? = 7, x= 4; about y = 5

A:

Q: (b) Q(√2, √3) over Q(√6).

A: This question from field extension

Q: A = (0, -3) and B = (5,9) A = (3, – 11) and B = (9,-3)

A:

Q: a² - 6? a² - b a+b 6? +ab +a? 1 a -b

A: we  already studied the standard equation as; a3 −b3 =(a − b)(a2 + ab + b2 ) a2 - b2 = (a - b)(a +…

Q: 5. x? – 4s + 4 - y?

A:

Q: P+ हे-a+7 +4x 15 Put +axŅ if

A: Given rt→=ti^+lncostj^ We have to write a→ in the form a→=aTT→+aNN→ Where, aT=ddtv and aN=aT2+a2…

Q: (2a - 3)2 = ? O 4a? + 9 O 4a? - 9 O 4a? - 12a + 9 O 4a² + 12a + 9

A:

Q: IFA = : ) and B = ( 3 If A = 4 5 10 find -2 -5

A:

Q: 8. y -8 -6 -4 -2 Answers: N. 4, 2.

A:

Q: -12 4. 9- 2. 9. -2

A: -2+8=6 If we add 8 to -2 , we get 6

Q: (а) {(E)) За + b : а,bER b 4 а | (b) а — ь b — с - : а,b, с € R - с — а

A:

Q: 9. If a + b = 2a - 3b + 4ab, find the values of 5 * 2 and 3*. 5 10. If a o b = a + 2b and a + b = b²…

A:

Q: 5 x? + y? = 16, y² - x = 4.

A:

Q: Which expression is equivalent to -3(4+n) – (2n – 5)? —п —7 О-п- 17 O -5n – 7 -5n – 17

A:

Q: 9. If a + b = 20- 3b + 4ab, find the values of 5 * 2 and 3*:

A: Since you have posted multiple question in this question which are not interlinked so I have solved…

Q: Find a + b, 2a + 3b, |a|, and |a − b|. a(4,-3) b(-2,5) a+b=? 2a+b=? 2a+3b=? |a|=? |a-b|=?

A:

Q: 7. Evaluate if a = 1, b = 2 and c = -4: 4(34a²b?)° =

A:

Q: Evaluate the expression.

A: We have to evaluate the expressions: (a)  -26(b)  -26(c)  152·-33 We know that…

Q: 1.-5(r+7)= -82 R= ?

A: Given equation is -5(r+7)=-82

Q: Show that 1 1 2 y? 2 = (y? – *)(2² – a²)(2² – y') 4,

A: We have to prove that  We will it by using the properties of determinants.

Q: a² + 2ry – y? + 2² = 7, Po(1, –1,3)

A:

Q: n= 10, Σν-24, Σx-0, Σχ260, Σxχy-87, - 4<x<4

A: Since, the exact question number is not specified, we'll be answering the first question. Please…

Q: A thermometer is taken from a room where the temperature is 23°C' to the outdoors, where the…

A: Solution:   Here, it is clear that by the newton law of cooling where Tt is the temperature at time…

Q: -7. а -(а-Ь) a (а) 21 (b) 27 (е) 17 (d) 9 (е) 33

A:

Q: -) a = 6, b = 3, c = 4 %3D

A:

Q: 3. Evaluate. a) 42 b) 5° c) 3-2

A:

Q: A thermometer is taken from a room where the temperature is 18°C to the outdoors, where the…

A:

Q: If a-b+c-d=10 and a+b-c+d=-2, what is 2a? -2 8. -8 O 10

A:

Q: Which expression is equal to (z-3)(z-2)2 .? (Z+3)(z-3) Z+2 I+3 I-2 I+3 Z-3 I+3 I-2 I-3

A:

Q: Which is equivalent to 50-10-15? A. 50- (-10) + (-15) B. 50+ (-10) - (-15) C. 50+ (-10) + (-15) D.…

A: Given: 50-10-15

Q: Rachel has thirteen photos of her friends. In how many ways can she choose seven of the photos to…

A: Permutation formula : P( n, r ) = n! (n-r)! Given: n =13, r =7

Q: A thermometer is taken from a room where the temperature is 23°C to the outdoors, where the…

A: According to Newton's law of cooling, we know that: Tt=Ts+Cekt        -1 And, from the given data,…

Q: -3 7/20 greater then -3.37

A: Introduction :

Q: EL(i² + 6) II-, (5/2) • 4! • O! C(6, 2)

A:

Q: Which expression is equivalent to 8a' + c³ ? (2а — с)(4а? + 4ас + с?) - (2а + с)(2а + с)(2а + с) (2а…

A: