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Svet_ta [14]
3 years ago
6

Help me please please ​

Mathematics
1 answer:
frosja888 [35]3 years ago
4 0

Answer:

3a^2 - 7a - 6

Step-by-step explanation:

Find the average length of the light gray shaded figure.  It is:

4a + 5 + 2a - 1        6a + 4

--------------------- = --------------- = 3a + 2

            2                      2

Now multiply this average length, 3a + 2, by the width, a - 3:

Area of light gray figure is (3a + 2)(a - 3) = 3a^2 - 7a - 6

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Kia thinks that every number has at least two factors. Which explains whether Kia is correct?
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Solution:

Yes , what mathematics say that every real number has at least two factors apart from number 1 and -1.

The number zero has infinite factors.

The number 1 and -1 which is neither prime nor composite has only 1 factor i.e itself.

Prime integers  has only two factors one and itself.

Non prime integers has more than two factors.

But when you say a number apart from natural, whole and integers it includes rational ,and irrational and when we combine them The set is called Real number. .So, Yes this statement is true for rational and irrational also.

So, yes Kia is not absolutely true, but if she has written the statement in this form:  Apart from 1 and -1 , every number has at least two factors then it would have been a true statement.


7 0
3 years ago
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. A recipe calls for 3 teaspoons of salt for every 5 cups of flour. If you wanted to make a larger batch with 15 cups of flour,
riadik2000 [5.3K]
Given:
3 teaspoons of salt for every 5 cups of flour.

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This is a proportion problem:
a/b = c/d where ad = bc

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3/5 = 9/15
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5 0
3 years ago
ESTIMATION - The total bill for lunch was $12.72, of which $0.72 was sales tax. What was the sales tax rate rounded to the neare
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3 0
3 years ago
What is the answer 3 3/10- 2 23/100
guapka [62]

Answer:

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Step-by-step explanation:

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Answer:

The​ day's high temperature written as degrees Celsius is 25 degrees' Celsius.

Step-by-step explanation:

The​ day's high temperature in St. Louis ,Missouri was recorded as 77 degrees F.

We are supposed to find the​ day's high temperature written as degrees Celsius.

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Thus, The​ day's high temperature written as degrees Celsius is 25 degrees' Celsius.

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3 years ago
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