Class 7
The additive identity for integers is:- a)0
- b)-1
- c)1
- d)None of these
Correct answer is option 'A'. Can you explain this answer?
The additive identity for integers is:
a)
0
b)
-1
c)
1
d)
None of these
Gunjan Lakhani answered • 2 hours ago- The additive identity property says that if you add an integer to zero or add zero to the integer, then you get the same integer back.
- So, zero (0) is the additive identity for integers, i.e., a + 0 = 0 + a = a.
The product of three negative integers is:- a)a positive integer
- b)either a positive integer or a negative integer
- c)a negative integer
- d)none of these
Correct answer is option 'C'. Can you explain this answer?
The product of three negative integers is:
a)
a positive integer
b)
either a positive integer or a negative integer
c)
a negative integer
d)
none of these
Gunjan Lakhani answered • 2 hours agoIf the number of negative integers in a product is odd, then the product is a negative integer.
The value of [(-4) x (-9) x (-25)] ÷ [(-2) x (-3) x (-5)] is:- a)30
- b)20
- c)10
- d)40
Correct answer is option 'A'. Can you explain this answer?
The value of [(-4) x (-9) x (-25)] ÷ [(-2) x (-3) x (-5)] is:
a)
30
b)
20
c)
10
d)
40
Gunjan Lakhani answered • 2 hours ago- Firstly we will solve brackets according to BODMAS rule,
(-4) x (-9) x (-25) = -900 (multiplication of odd number of negative integers gives a negative integer)
(-2) x (-3) x (-5) = -30 (-900) / (-30) = 30 (division of even number of integers gives a positive integer)
The sum of two integers is -112. If one of them is -109 the other is:- a)-121
- b)3
- c)-3
- d)None of these
Correct answer is option 'C'. Can you explain this answer?
The sum of two integers is -112. If one of them is -109 the other is:
a)
-121
b)
3
c)
-3
d)
None of these
Gunjan Lakhani answered • 2 hours ago► x + (-109) = -112
► x = -112 + 109
► x = -3
► x = -112 + 109
► x = -3
a × (b + c) = a × b + a × c is called ______.- a)Distributive property
- b)Associative property
- c)Commutative property
- d)Closure property
Correct answer is option 'A'. Can you explain this answer?
a × (b + c) = a × b + a × c is called ______.
a)
Distributive property
b)
Associative property
c)
Commutative property
d)
Closure property
Gunjan Lakhani answered • 2 hours ago- The distributive property lets you multiply a sum by multiplying each addend separately and then add the products.
- Mathematically it can be written as:
a × (b + c) = a × b + a × c
Which of the following is true?- a)(- 8) + (- 4) > (- 8) – (- 4)
- b)(-8) + (- 4) = (- 8) – (- 4)
- c)(- 8) + (- 4) < (- 8) – (- 4)
- d)None of these
Correct answer is option 'C'. Can you explain this answer?
Which of the following is true?
a)
(- 8) + (- 4) > (- 8) – (- 4)
b)
(-8) + (- 4) = (- 8) – (- 4)
c)
(- 8) + (- 4) < (- 8) – (- 4)
d)
None of these
Gunjan Lakhani answered • 2 hours ago(- 8) + (- 4) < (- 8) – (- 4)
► (-8) + (-4) = -12
► (-8) – (-4) = -4
Therefore, -12 < -4
► (-8) + (-4) = -12
► (-8) – (-4) = -4
Therefore, -12 < -4
A place is 45 metre above sea level and another place is 25 meter below sea level. What is the difference of level in metres between the two places?- a)60
- b)20
- c)70
- d)-20
Correct answer is option 'C'. Can you explain this answer?
A place is 45 metre above sea level and another place is 25 meter below sea level. What is the difference of level in metres between the two places?
a)
60
b)
20
c)
70
d)
-20
Gunjan Lakhani answered • 2 hours ago45 m above sea level = +45
25 m below sea level = -25
Therefore, 45 - (-25) = 70
25 m below sea level = -25
Therefore, 45 - (-25) = 70
Difference between 43°C and -17°C is:- a)-26°C
- b)60°C
- c)-60°C
- d)26°C
Correct answer is option 'B'. Can you explain this answer?
Difference between 43°C and -17°C is:
a)
-26°C
b)
60°C
c)
-60°C
d)
26°C
Gunjan Lakhani answered • 2 hours ago► 43 - (-17) = 60
Neyveli new Thermal power project is located in which state in India?
Kalyani Barik answered • 11 hours agoTamil nadu
Manisha Namo asked • 5 hours agoFind which of the sentences given in options is punctuated correctly. - a)Steve always went to watch football: he loved the atmosphere at the games.
- b)Steve always went to watch football, he loved the atmosphere at the games.
- c)Steve always went to watch football; he loved the atmosphere at the games.
- d)None of these
Correct answer is option 'C'. Can you explain this answer?
Find which of the sentences given in options is punctuated correctly.
a)
Steve always went to watch football: he loved the atmosphere at the games.
b)
Steve always went to watch football, he loved the atmosphere at the games.
c)
Steve always went to watch football; he loved the atmosphere at the games.
d)
None of these
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Thilak Kumar Channel Kum asked • 8 hours agoWhat is the other way to select the entire document rather than pressing Ctrl+A in MSWord 2010?- a)Triple click in the right margin when the pointer’s shape is the arrow.
- b)Triple click in the left margin when the pointer’s shape is the arrow.
- c)Triple click inside a paragraph.
- d)Triple click anywhere in the document.
Correct answer is option 'B'. Can you explain this answer?
What is the other way to select the entire document rather than pressing Ctrl+A in MSWord 2010?
a)
Triple click in the right margin when the pointer’s shape is the arrow.
b)
Triple click in the left margin when the pointer’s shape is the arrow.
c)
Triple click inside a paragraph.
d)
Triple click anywhere in the document.
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Kotaiah Vidadala asked • 10 hours agoThe heights of six mountains are 8200 m, 6000 m, 8600 m, 7500 m, 8800 m and 6500 m. Based on this information, answer the questions given.
Q. What is the mode of the heights?- a)6000
- b)8800
- c)Does not exist
- d)7500
Correct answer is option 'C'. Can you explain this answer?
The heights of six mountains are 8200 m, 6000 m, 8600 m, 7500 m, 8800 m and 6500 m. Based on this information, answer the questions given.
Q. What is the mode of the heights?
Q. What is the mode of the heights?
a)
6000
b)
8800
c)
Does not exist
d)
7500
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