1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
OlgaM077 [116]
2 years ago
8

Reasoning Explain why either a or b must be 0 if ab = 0, but neither a nor b

Mathematics
1 answer:
andrew-mc [135]2 years ago
7 0
By the zero product property, a or b must be 0 if ab = 0. Or you could solve for each variable.

Divide both sides by b:
b=0/a —> b=0

Divide both sides by b:
a=0/b —> a=0

Hmm A could be 4 and b could be 1 because 4*1=4
You might be interested in
For an integer n ≥ 0, show that (n/2) - (-n/2) = n.<br><br> Use greatest integer function
mars1129 [50]

The greatest integer function returns the largest integer smaller than the number you provide it. That is, if <em>n</em> ≤ <em>x</em> < <em>n</em> + 1, where <em>n</em> is an integer, then the "greatest integer of <em>x</em>" is [<em>x</em>] = <em>n</em>.

• Let <em>n</em> be even. Then we can write <em>n</em> = 2<em>k</em> for some integer <em>k</em> ≥ 0. Now,

[<em>n</em>/2] = [<em>k</em>] = <em>k</em>

while

[-<em>n</em>/2] = [-<em>k</em>] = -<em>k</em>

so that

[<em>n</em>/2] - [-<em>n</em>/2] = 2<em>k</em> = <em>n</em>

<em />

• Let <em>n</em> be odd. Then <em>n</em> = 2<em>k</em> + 1 for some integer <em>k</em> ≥ 0. Every odd integer occurs between two even integers, so that

<em>n</em> - 1 < <em>n</em> < <em>n</em> + 1

or equivalently,

2<em>k</em> < <em>n</em> < 2<em>k</em> + 2

so that

<em>k</em> < <em>n</em>/2 < <em>k</em> + 1

It follows that [<em>n</em>/2] = <em>k</em>.

Similarly, if we negative the previous inequality, we have

-<em>k</em> > -<em>n</em>/2 > -(<em>k</em> + 1), or -<em>k</em> - 1 < -<em>n</em>/2 < -<em>k</em>

which means [-<em>n</em>/2] = -<em>k</em> - 1.

So we make the same conclusion,

[<em>n</em>/2] - [-<em>n</em>/2] = <em>k</em> - (-<em>k</em> - 1) = 2<em>k</em> + 1 = <em>n</em>

3 0
2 years ago
Halp aspp<br><br><br>give brialest​
Masja [62]

Answer:

Cant see the full photo {error}

7 0
2 years ago
What is the best estimate of the lateral area of a cube with edges that are 2.1 inches long?​
Dimas [21]
The best estimate of the lateral area of the cube with edges that are 2.1 inches long is 4.2
8 0
3 years ago
How do you simplify (-5x^5+14)-(11x^2+1+11x^5)
lord [1]
(-5x ⁵+14)-(11x ²+1+11x ⁵)
Like terms: -5x ⁵-11x ⁵ = -16x ⁵
Like terms also: 14-1 = 13
Simplified all together: -16x ⁵ - 11x ²+ 13
(Always put highest degree first)
6 0
2 years ago
A pair of jeans cost 35.00. the sales tax is 7%. how much is the sale tax?
KonstantinChe [14]

Answer:

2.45

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • the temperature of a pot of water fell from 72°F to 36°F in 4 minutes. find the average temperature per minute
    15·2 answers
  • Heyy i need an answer for this,it’s 7th grade math!
    11·2 answers
  • Use the conditional statement to answer the question.
    10·2 answers
  • What is the equation of the line that Passes through (3,5) and is parallel to y=2x+6
    9·1 answer
  • What is the midpoint of the line segment graphed below?
    9·2 answers
  • What is the value of y ,if y = 1/x ,take x= -2/3<br> 2/3<br> 1/2<br> -3/2<br> -2/3
    12·1 answer
  • What is the Perimeter?
    8·1 answer
  • Elaina buys eggs and potatoes at a store. She pays a total of $25.92. She pays $2.57 for the eggs. She buys 5 bags of potatoes t
    5·1 answer
  • Solve pls braniliest
    7·2 answers
  • What should be the order of polynomial
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!