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Grace [21]
3 years ago
15

What is a counterexample?◑〰️◑ please help

Mathematics
2 answers:
Strike441 [17]3 years ago
7 0

Answer:

A counterexample is a specific case which shows that a general statement is false. Example 1: Provide a counterexample to show that the statement. "Every quadrilateral has at least two congruent sides" is not always true.

JulijaS [17]3 years ago
6 0

Answer:

it's basically a theory

Step-by-step explanation:

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The sum of two numbers is twice their difference. the larger number is 6 more than twice the smaller. find the numbers.
soldi70 [24.7K]
Let the numbers be x and y; x being the larger number and y being the smaller.

Given,
 
x + y = 2* (x - y)

x + y = 2x - 2y

x = 3y

Also given,

x = 6 + 2y

3y = 6 + 2y

--- y = 6

Thus, x = 3y = 3*6 = 18.

Therefore, the numbers are 18 and 6.
7 0
3 years ago
I screenshotted my question.
andrey2020 [161]

Answer:

Step-by-step explanation:

Hello,

4-4x\leq 24\\\\\text{We can divide by 4.}\\\\1-x\leq 6\\\\\text{We can add x.}\\\\1\leq x+6\\\\\text{We can subtract 6.}\\\\1-6=-5\leq x \large \boxed{\sf \bf x \in [-5;+\infty[}

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3 0
3 years ago
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Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels at 115 miles per
xz_007 [3.2K]
X= 115x95 this is because when you solve it will give you your answer
6 0
3 years ago
9a-18b+21c apply distributive property to factor out gcf of all three terms
horsena [70]
The GCF of the three terms (9a, -18b and 21c) is 3

Rewrite each of the terms so 3 is a factor
9a = 3*3a
-18b = -3*6b
21c = 3*7c

So we can say...
9a - 18b + 21c = 3*3a - 3*6b + 3*7c
9a - 18b + 21c = 3(3a - 6b + 7c)

Answer: 3(3a - 6b + 7c)

If you distribute outer 3 to each of the inner terms and multiply, you'll get the original expression again.

3 0
3 years ago
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Calculate the length of segment RS¯ with midpoint, M, if RM=5x and MS=x+12.
Colt1911 [192]

Answer:

So M is the midpoint of RS lmbo

Step-by-step explanation:

What you have here are lengths of two equal segments, expressed as different algebraic expressions.

you just set those two expressions equal, and solve for x.  Then plug that x into EITHER of the two expressions, to get the equal lengths of RM & MS.

8 0
3 years ago
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