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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 9702. |
. In Figure 4, ABCD is a parallelogram in which angle ADC is 60° and angle ACB = 70°. Find themeasures of angle DCB, angle CAB and angle DAC.ans is 120°,70°,50° plz solve the question |
Answer» *Question:—In Figure 4, ABCD is a parallelogram in which ANGLE ADC is 60° and angle ACB = 70°. Find the measures of angle DCB, angle CAB and angle DAC. *Answer:—DAC = 70 (Alternate interior ANGLES) DCB = 180 - (70 + 60) (Angle sum property) = 180 - 130 = 50 CAB = 50 (Alternate interior angles) BCD = 180 - (50 + 70) = 180 - 120 = 60 THEREFORE,BAD = 70 + 50 = 120 ADC = 60 DCB = 50 + 70 = 120 CBA = 60 Hence our answer is 120° , 70° , 50° |
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| 9703. |
Prove that 3 + 2/5 is irrational. |
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Answer» Step-by-step explanation: LET take that 3+2 5
is RATIONAL number → so, we can write this answer as ⇒3+2 5
= b a
Here a & b use TWO coprime number and b =0. ⇒2 5
= b a
−3 ⇒2 5
= b a−3b
∴ 5
= 2b a−3b
Here a and b are integer so 2b a−3b
is a rational number so 5
should be rational number but 5
is a IRRATIONAL number so it is contradict - HENCE 3+2 5
is irrational. |
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| 9704. |
Please don't spam need answer with full explanation for std 7 CBSE. on a notebook pls urgent. ItzDarknessshadow65 pls |
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Answer» Answer: 7. 230 / 8. 180 / 9. 0 / 10. 23 Step-by-step explanation: 7. |21÷(-7)+12|×21+5 =|-3+12|×25+5 =9×25+5 =225+5 =230 8. 72 of 46×20÷(20+3)-2700 =(3312×20)÷23-2700 =66240÷23-2700 =2880-2700 =180 9. 22-[5+13÷{7×2+(5-3) of 6}×34] =22-[5+13÷{14+2 of 6}×34] =22-[5+13÷{14+12}×34] =22-[5+13÷26×34] =22-[5+0.5×34] =22-[5+17] =22-22 =0 10. 3×5-[8-{12+36÷(10-1)}] =15-[8-{12+36÷9}] =15-[8-{12+4}] =15-[8-16] =15-([-8] (negative×negative=+ ) =15+8 =23 |
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| 9705. |
The zeroes of the quadratic polynomial x^2 + 7x + 10 are (x^2 means x square)i) -2 and 5ii) 2 and -5iii) -2 and -5iv) does not exist v) Other: |
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Answer» Answer: |
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| 9706. |
If a={2,3,4,5,6,7}&B={6,7,8,9,10}then n (AnB) = |
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Answer» Answer: N(AnB) = { 6, 7 } Step-by-step explanation:
In SET a and B COMMON nnumber is 6 and 7 therefore, n (AnB) = { 6 , 7 } |
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| 9707. |
Derivative of cos x^2 (2x+1) |
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Answer» Step-by-step EXPLANATION: |
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| 9708. |
Simplify (7+√2) (7-√2) |
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Answer» Answer: tanA+tan(60° + A). tan(120° +A) = - tan3A Jennie KIM, known mononymously as Jennie, is a South Korean singer and rapper. BORN and raised in South Korea, Kim studied in New Zealand at the age of eight for five years, before returning to South Korea in 2010. She debuted as a member of the girl group BLACKPINK under YG Entertainment in August 2016. |
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| 9709. |
13] show that 14n cannot end with the digit zero for any natural number n |
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Answer» gdtoidfg fgFufshgxf |
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| 9710. |
Polynoc4. Whatmust be added top(x) = 6x5 + 5x4 + 11x2 – 3x2 + x + 1, so thatresulting polynomial is exactly divisible4x2 + 3x - 2? (Hint: add - r(x) in p(x)) |
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Answer» _____________________ |
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| 9711. |
HOOLCK TOChKNOWLEDGEMark the periods by placing commas and then write the number names for the following:(a) 76542(b) 89764 (C) 35264 (d) 82013 (e) 69007(f) 308491(g) 217486 (h) 568472 (i) 297016 () 720003 |
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Answer» COMMA comma comma comma comma |
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| 9712. |
The roots of 2x-2/x=3 are |
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Answer» Answer: (2x2 - x) - 3 = 0 STEP 2 : Trying to factor by splitting the middle term 2.1 Factoring 2x2-x-3 The first term is, 2x2 its coefficient is 2 . The middle term is, -x its coefficient is -1 . The last term, "the CONSTANT", is -3 Step-1 : Multiply the coefficient of the first term by the constant 2 • -3 = -6 Step-2 : Find two factors of -6 whose SUM equals the coefficient of the middle term, which is -1 . -6 + 1 = -5 -3 + 2 = -1 That's it Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -3 and 2 2x2 - 3x + 2X - 3 Step-4 : Add up the first 2 terms, pulling out like factors : x • (2x-3) Add up the last 2 terms, pulling out common factors : 1 • (2x-3) Step-5 : Add up the four terms of step 4 : (x+1) • (2x-3) Which is the desired factorization Equation at the end of step 2 : (2x - 3) • (x + 1) = 0 STEP 3 : Theory - Roots of a product 3.1 A product of several terms equals zero. When a product of two or more terms equals zero, then at least one of the terms must be zero. We shall now solve each term = 0 separately In other words, we are going to solve as many equations as there are terms in the product Any solution of term = 0 solves product = 0 as well. Solving a Single Variable Equation: 3.2 Solve : 2x-3 = 0 Add 3 to both sides of the equation : 2x = 3 Divide both sides of the equation by 2: x = 3/2 = 1.500 Solving a Single Variable Equation: 3.3 Solve : x+1 = 0 Subtract 1 from both sides of the equation : x = -1 Supplement : Solving Quadratic Equation Directly Solving 2x2-x-3 = 0 directly Earlier we FACTORED this polynomial by splitting the middle term. let us now solve the equation by Completing The Square and by using the Quadratic Formula Step-by-step explanation: mark as brainliest |
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| 9713. |
. If A={2,3,{4}} , then number of elements in P(A) is equal to: * |
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Answer» Step-by-step explanation: subsets of A: null, {2},{3},{4},{2,3},{2,4},{3,4}, {2, 3,4} p(A) ={null, {2},{3},{4},{2,3},{2,4},{3,4},{2, 3,4}} |
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| 9714. |
TanA/2=3/2 and tanB/2=5/2 then cos (A+B) |
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Answer» use TAN(A +B) = [tanA + TANB]/[1 - tanA tanB] and cos 2A = 1 - tan²A/ 1 + tanA formulae |
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| 9715. |
26. किसी आयताकार खेत की लम्बाई चौड़ाई से ढाई गुनी अधिक है । उसकेअन्दर चारों तरफ एक मीटर चौड़ा रास्ता है । रास्ता बनवाने का खर्च3.50 रु० प्रति वर्गमीटर की दर से कितना होगा जबकि खेत की चौड़ाई12 मीटर हो ?Don't give wrong explanation? |
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Answer» Answer: 3.50 रु० प्रति वर्गमीटर की दर से कितना होगा जबकि खेत की चौड़ाई 12 मीटर हो ? (1) 290 रु० (2) 280 रु० (3) 260 रु० (4) 250 रु० |
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| 9716. |
Find the range of√9-x² please write down the steps in a notebook and add it here |
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Answer» Step-by-step EXPLANATION: ch Singh Jatt they can check VV CTN disk did she v South didn't fill |
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| 9717. |
9. The A.M. between mand 50 is 45, then m is: |
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Answer» I don't KNOW I HOPE you UNDERSTAND that |
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| 9718. |
TanA+tan(60° + A). tan(120° +A) = - tan3A |
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Answer» |
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| 9719. |
Find the matrix X, if Y = [] and 2Y2 = 2Y +X. |
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Answer» Answer: The potential Energy of an electron in hydrogen ATOM is -6.8eV. INDICATE in which EXCITED STATE the ELECRON is present? |
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| 9720. |
Which of the following is true? * {1,2}⊂{1,{2},3}{2,{1}}⊂{1,{2},3} {2}⊂{1,{2},3} {1,{2}}⊂{1,{2},3} |
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| 9721. |
The difference between two numbers is -1 and their sum is 1. Find the two numbers. |
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Answer» Step-by-step EXPLANATION: The DIFFERENCE between TWO NUMBERS is -1 and their sum is 1. Find the two numbers. |
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| 9722. |
(ক) শারীরিক সক্ষমতার দক্ষতাসম্পর্কিত উপাদানগুলির নাম লেখাে। (খ) শারীরিক সক্ষমতার প্রয়োজনীয়তা ব্যক্ত করো। (গ) মােহনবাগান স্পাের্টিং ক্লাব সম্বন্ধে যা জান্য লেখাে। |
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Answer» I don't UNDERSTAND this LANGUAGE OK |
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| 9723. |
The zeroes of the quadratic polynomial x^2 + 7x + 10 are (x^2 means x square)(i) -2 and 5 (ii) 2 and -5(iii) -2 and -5 (iv) does not exist (v) Other: |
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Answer» here is the answer Step-by-step EXPLANATION: answer is q.-2 and 5 |
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| 9724. |
(-29/4p + 2q);(7p - 2/3q + 3/4r) ????? |
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| 9725. |
.tanA.tan(60° + A). tan(120° +A) = -tan3A |
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Answer» Step-by-step explanation: nine THREE EIGHT nine nine SEVEN four SIX eight two ok massage me myself rohan.... like to make new friends |
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| 9726. |
Pliz solve this now need help |
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Answer» Answer: CONVERT the following RECURRING number in p/q from. 0.931 PLEASE GIVE me a answer of my this question please ✌️✌️ |
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| 9727. |
किसी मैदान की लम्बाई तथा चौडाई क्रमशः 75 मी 20 सेमी और4मी 80 सेमी है। 1.50रु. प्रति वर्गमीटर की दर से मैदान को समतल कराने का खर्च ज्ञात करें? |
Answer» ₹541.44Step-by-step EXPLANATION: दिया है,मैदान की लंबाई = 75 मी 20 सेमी = 75.2 मी मैदान की चौड़ाई = 4 मी 80 सेमी = 4.8 मी मैदान को समतल करने की दर = ₹1.5 / वर्ग मीटर ज्ञात करना है,मैदान को समतल करने का खर्च उत्तर,मैदान का क्षेत्रफल = लंबाई × चौड़ाई = 75.2 × 4.8 वर्गमी = 360.96 वर्गमी 1 वर्गमी क्षेत्र समतल करने का खर्च = ₹1.5 360.96 वर्गमी समतल करने का खर्च = ₹1.5 × 360.96 = ₹541.44 अतः मैदान को समतल कराने का खर्च ₹541.44 होगा। आशा है कि इससे सहायता मिलेगी। #BeBrainly :-) |
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| 9728. |
The set {x:x € R,-2< x ≤ 7}can be writen as : (7, -2] (-2,7] (-2,7) [-2,7) |
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Answer» Answer: Transcribed image text: 9. -/100 points V EPPDISCMATH5 6.1.025. Let R; = < x € Rj1sx51+1 = 1,1+1 for each positive integer i. (ENTER your answers using interval notation.) (a) 9 UR;= ! " . (C) Are R1, R2, R3, ..., R, MUTUALLY disjoint? Explain. O YES, because no two of the sets R, R2, R2, ..., Ro have any elements in common, Yes, because the intersection of the sets Ry, Rz, R2, ..., R, is empty. Yes, because the union of the sets R1, R2, R2, ..., Rg is empty. • No, because the sets Rz, R2, R3, ..., R, are disjoint. No, because no two of the sets R1, R2, R2, ..., R, are disjoint. UR; = i = 1 |
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| 9729. |
Q.Find the value ofat the pointplease answer with step_by_step explanation !!no spammingspamming will be reported strictly |
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Answer» Hey army here is my intro I can't ASK question because moderator DELETE my question so I ANSWER here Purple you |
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| 9730. |
Complex numbers solve it |
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Answer» B. 1,2 Step-by-step EXPLANATION: |
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| 9731. |
(ii) By putting x=-1 is polynomial f(x)=4x-3 the value, of polynomialwill be |
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Answer» -7 Step-by-step explanation: 4(X)-3 4(-1)-3 -4-3 =-7 |
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| 9732. |
Derivative of e^(x^7 sin x)please answer asap.... |
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Answer» Step-by-step EXPLANATION: E^(x^7sinx)(x^7cosx+7x^6sinx) |
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| 9733. |
Coordinate geometry class 10 (x+10)square please solve this question |
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Answer» <P>Step-by-step explanation: 1.Section Formula. 2.Section formula helps us to know the coordinates of the points that divide a GIVEN line segment into two parts. 3.For example: let us TAKE P(X, y) as any point on the line segment AB, which divides AB in the RATIO m: n, then the coordinates of the point P(x, y) will be: |
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| 9734. |
The number of parallel tangents at most a circle can have on a diameter is: |
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Answer» 2 is the answer .. Step-by-step explanation: 2is the answer |
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| 9735. |
Predecessor of -79. plese give me a answer |
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Answer» -78 PLEASE MARK me BRAINLIEST answer |
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| 9736. |
What is the meaning of sarcastic????? |
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Answer» In HINDI it is व्यंग्यात्मक| Hope you will be SATISFIED. |
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| 9737. |
2. Find the value of x in each of the following:(i) x:7:: 12:21(ii) 4:x::8:14(iii) x:3::0.4:0.5(iv) x:1.5 :: 6.3:45please help me |
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Answer»
i. X:7::12:21 = > X/7=12/21 => 21X = 12×7 by cross MULTIPLICATION METHOD => 21x = 84 => X = 84/21 => x = 4 ii. 4:X::8:14 => 4/x= 8/14 => 8x = 14×4 by cross multiplication method => 8x = 56 => x = 56/8 => x = 7 iii. X:3::0.4:0.5 => x/3 = 0.4/0.5 => X/3 = 4/5 by multiplying by 10 => 5x = 12 => X = 12/5 => x = 2.4 iv. Do it by yourself.. HOPE IT HELPS YOU.. PLEASE MARK ME AS THE BRAINLIEST.. |
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| 9738. |
Degree of a polynomial is n. How many zeroes does it have?(i) 1 (ii) 2 (iii) 3 (v) n (vi) Other: .. |
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Answer» Answer: (v) n Step-by-step EXPLANATION: No of zeroes DEPENDS upon DEGREE of POLYNOMIAL |
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| 9739. |
 (7, -2] (-2,7] (-2,7) [-2,7) |
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Answer» Step-by-step explanation:  (7, -2] (-2,7] (-2,7) [-2,7) |
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| 9740. |
If A = {2, 3, {4}} , then number of elements in pensالميرمن الله1 | 32193 8u 6 |
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Answer» Answer: 3 ELEMENTS are there in the SET. |
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| 9741. |
Solution set of the inequality 3≥x is: |
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Answer» If A = {2, 3, {4}} , then NUMBER of elements in pens الميرمن الله 1 | 3 219 3 8 u 6 Step-by-step explanation: If A = {2, 3, {4}} , then number of elements in pens الميرمن الله 1 | 3 219 3 8 u 6 |
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| 9742. |
The pair of equation X=-4 and y=-5 graphically represents lines which areplease with explanation |
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Answer»
Answer❣ QUESTION : An object travels 20M in 4s and then other 20m in 10S . What is the average speed of the object ? Solution : As per the question we have two cases so let's assume each as Case 1 and Case 2 respectively ! Case 1 : Distance Covered : 20m Time TAKEN : 4 sec Speed : Distance / time : 20 / 4 : 5 m / sec Case 2 : Distance Covered : 20 m Time taken : 10 sec Speed : Distance / time : 20 / 10 : 2 m / sec huge average speed = total distance total time averagespeed=totaltimetotaldistance = \5 + 2 4 + 10=4+105+2 = 7 40 = 0.175=407=0.175 Hence , the average speed of the object is 0.175 m / sec !! hope that ur helpfull please follow and thank you |
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| 9743. |
What are Additive inverse of the following 1)-62 2)-26 3) 37 4) -73 |
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Answer» Step-by-step explanation: Integers is a collection of numbers formed by whole numbers and negative numbers. In the beginning, a quick recap of the integers and their representation on the number line, operations like ADDITION, subtraction etc that can be performed on them, additive inverse, negative integers are some of the TOPICS given. This is followed by a detailed description of the topic Properties of Addition and Subtraction of Integers is given. Properties listed in this section are: 1. Closure under addition 2. Closure under subtraction 3. Commutative property 4. Associative property 5. Additive identity All of these mentioned above are explained with the help of examples. The concept of Multiplication of Integers is covered in detail and contains various SUBSECTION which focuses more deeply on the operation of multiplication of integers: Multiplication of a positive and a negative integer Multiplication of two negative integers Product of three or more negative integers There are various properties associated with the multiplication of integers: Closure under multiplication Commutativity of multiplication Multiplication by zero Multiplicative identity Associativity for multiplication Distributive property Making multiplication easier Division of the Integers is the last topic of the chapter - Integers. Properties of the division of integers are discussed in this section. Students will learn these two points: 1. When a positive integer is divided by a negative integer, the quotient obtained is a negative integer and vice- versa. 2. Division of a negative integer by another negative integer gives a positive integer as quotient. Also, we observer that a divided by zero is undefined a divided by 1 is a A total of 4 unsolved exercises are given in this chapter to make the concept more clear. Summarization of all the important points of the chapter at the END. |
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| 9744. |
If l is parallel to m then find value of xplease answer fast |
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Answer» in FIGURE angles is incorrect please send correct QUESTIONS... |
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| 9745. |
23. ठ कोई वस्तु 20% की हानि पर 240 रु. में बिकती है। यदि विक्रय मूल्य 10% बढ़ जाय, तो कितने प्रतिशत की हानि होगी? |
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Answer» अतः, 12% प्रतिशत की हानि होगी। Step-by-step explanation: दिया है:कोई वस्तु 20% की हानि पर 240 रु. में बिकती है। यदि विक्रय मूल्य 10% बढ़ जाय, ज्ञात करना है:तो कितने प्रतिशत की हानि होगी? हल: 20% की हानि पर विक्रय मूल्य = 100रु. - 20रु. = 80रु. °.° 80 रु. विक्रय मूल्य, तो क्रय मूल्य = 100 रु. .°. 1 रु. विक्रय मूल्य, तो क्रय मूल्य = (100/80) रु. .°. 240 रु. विक्रय मूल्य , तो क्रय मूल्य = (100/80)*100 = 3000रु. 10% विक्रय मूल्य बढ़ने पर कुल विक्रय मूल्य = 240[1+(10/100)] = 240 + 24 = 264 रु. .°. हानि = 300 रु. - 264 रु. = 36 रु. .°. अभीष्ट प्रतिशत हानि = (हानि/क्रय मूल्य) * 100 = (36/300) * 100 = 12% |
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| 9746. |
10. A cube of side 10 cm was painted in a manner that three adjacent faces are yellow and the other three adjacent faces are green. It is cut into cubical blocks each of side 2 cm. How many cubes have three faces painted with the same colour? |
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| 9747. |
If 2 i 3 and 2 are two roots of a Fourth i degree equation, form the equation. |
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| 9748. |
1+1=whatwhatwhatehat |
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Answer» Answer: 1+1=2 Step-by-step EXPLANATION: PLEASE mark as BRAINLIEST n THANK me |
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| 9749. |
Show that sin 30 *cos30 *tan30 =1\√3 |
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Answer» Answer: here is the answer Step-by-step EXPLANATION: 1/2 √3/2 1/√3 √3/4√3 1/√3 hope it will help you |
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| 9750. |
THE SET { x :x E R , -2 < x ≤ 7 } can be written as |
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Answer» THE SET { x :x E R , -2 < x ≤ 7 } can be written as ={-1, 0,1,2,3,4,5,6,7} |
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