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love history [14]
2 years ago
8

Is this statement true or false? * If an odd number is less than 15, then it is prime.

Mathematics
1 answer:
Hatshy [7]2 years ago
8 0

Answer: That is false

Step-by-step explanation: 9 is odd but not prime

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If you ever see a cheetah coming to you Don’t PANIC it should be going up to you very fast get ready and when it comes pound it
Nady [450]

Answer:

you would have to be still!

Step-by-step explanation:

5 0
2 years ago
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t When you reverse the digitals in a certain number you increase its value by 27. Find the number if the sum fixes digits is 9.
TiliK225 [7]
The number=10x+y
we suggest this system of equations:
(10y+x)-(10x+y)=27
x+y=9                                ⇒x=9-y

Can solve this system of equations by susbstitution method.
(10y+(9-y)-(10(9-y)+y)=27
10y+9-y-(90-10y+y)=27
10y-y+10y-y=27-9+90
18y=108
y=108/18
y=6

x=9-y
x=9-6
x=3

The number=10x+y=10(3)+6=36

Answer: the number is 36.

to check:
63-36=27
6+3=9
3 0
3 years ago
If the unit price of flour is $0.20 cents less than the cost of sugar, what is the total cost price for
Oksanka [162]

Answer:

20 cents more than the price of flower

Step-by-step explanation:

6 0
3 years ago
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Simplify (1 − cos x)(1 + cos x). (2 points)
Vadim26 [7]

Answer:

sin²x

Step-by-step explanation:

we have

(1 − cos x)(1 + cos x)=1-cos²x

Remember that

sin²x+cos²x=1 ------> i-cos²x=sin²x

therefore

(1 − cos x)(1 + cos x)=sin²x

4 0
3 years ago
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NO LINKS Write an inequality to represent the phrase: The sum of a number and seven less than a number
german

Answer:

The sum of a number, which I have named 'n', and 7 can be written as the expression:

n+7

remember the word 'is' in a written problem indicates where you'll most likely use an =,≥,≤ sign. Since they say that it is 'no more than' we know that n+7 is less than or equal to the given number, so we use '≤'.

n+7≤ 1

Step-by-step explanation:

8 0
2 years ago
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