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jekas [21]
3 years ago
14

Which of the following conjectures is false?Please give a counterexample!Thank youuu

Mathematics
1 answer:
MakcuM [25]3 years ago
6 0

Which of the following conjectures is false?

Solution: The false conjecture is:

J. The sum of two odd numbers is odd

Explanation:

F. The product of two even numbers is even.

For example: Let us take two even numbers 4 and 6.

The product of two even numbers is:

4 \times 6 = 24

Therefore, the product is also even number. Hence the conjecture is true.

G. The sum of two even numbers is even.

For example: Let us take two even numbers 4 and 6.

The sum of two even numbers is:

4+6 = 10

Therefore, the sum is also even number. Hence the conjecture is true.

H. The product of two odd numbers is odd.

For example: Let us take two odd numbers 3 and 5.

The product of two odd numbers is:

3\times5 = 15

Therefore, the product is also odd number. Hence the conjecture is true.

J. The sum of two odd numbers is odd.

For example: Let us take two odd numbers 3 and 5.

The sum of two odd numbers is:

3+5= 8

Therefore, the sum is not an odd number. Hence the conjecture is false.

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At the school track meet, Dita ran 100 meters at a rate of 6. 25 meters per second. Time = StartFraction distance Over rate EndF
tiny-mole [99]

Answer:

16 seconds

Step-by-step explanation:

So, we know that distance equals 100.

We also know that Dita covers 6.25 meters of this distance every second.

Since this is 6.25 PER second, we can write this as 6.25s, where s is seconds.

To find the seconds it takes to cover 100 meters in distance, we can write the following equation:

6.25s = 100

This makes sense, since the 100 meters in distance is equal to the rate of change in meters, times the seconds.

Now we just need to solve for s.

To do this, we must get s alone. We can do this by dividing 6.5 from both sides:

\frac{6.25}{6.25}s = \frac{100}{6.25}  

     =

  s = 16

So this means the seconds it takes to go 100 meters is 16 seconds, your first answer option

hope this helps! :3

7 0
2 years ago
Read 2 more answers
Which equation justifies why nine to the one third power equals the cube root of nine?
Aleksandr-060686 [28]

Answer:

nine to the one third power all raised to the third power equals nine raised to the one third times three power equals nine

5 0
3 years ago
If f(x)=3x+10x and g(x)=4x-1 find (f-g)(x)
oksano4ka [1.4K]

Answer:

(f - g)(x) = 9x + 1

Step-by-step explanation:

Step 1: Write out functions

f(x) = 3x + 10x = 13x

g(x) = 4x - 1

Step 2: Find (f - g)(x)

(f - g)(x) = 13x - (4x - 1)

(f - g)(x) = 13x - 4x + 1

(f - g)(x) = 9x + 1

4 0
4 years ago
12+16(5×10)÷20-2=<br><br>What is the answer ?​
mrs_skeptik [129]

\implies {\blue {\boxed {\boxed {\purple {\sf {50}}}}}}

\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}

12 + 16(5 \times 10) \div 20 - 2

= 12 + 16(50) \div 20 - 2

= 12 +  \frac{800}{20}  - 2

= 12 + 40 - 2

= 52 - 2

= 50

<h3><u>Note</u>:-</h3>

\sf\purple{PEMDAS\: rule.}

P = Parentheses

E = Exponents

M = Multiplication

D = Division

A = Addition

S = Subtraction

\bold{ \green{ \star{ \orange{Hope\:it\:helps.}}}}⋆

4 0
3 years ago
Read 2 more answers
Please help
zhenek [66]

Answer:

3125

Step-by-step explanation:

first, find the unit rate.

2500/4=625

625= amount of oxygen needed to supply a family of one(or just one single person)

625*5=3125

***with these problems, always try to find the unit rate first which is the amount of something per one unit. it'll be helpful to solve the questions following it.

4 0
3 years ago
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