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zalisa [80]
3 years ago
10

I need to know the answer and how to solve it

Mathematics
1 answer:
almond37 [142]3 years ago
6 0

Hey! The answer is in the attachment.

Source : Done from 'My Paint'

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Add (2x + 2) and (4x – 7)
natta225 [31]
The right answer is 6x + 5
4 0
2 years ago
Please help with question 6, 7, 8, and 9 about rational and irrational numbers
aliina [53]
6. When we multiply two surdic integers, we can leave it into one big surd.
For instance, if we have:

\sqrt{a} \cdot \sqrt{b}, we can simplify it down to one uniform square root sign, \sqrt{ab}.

So, we can say: 3\sqrt{2} \cdot 8\sqrt{18} = 24\sqrt{36}, which is a rational root, because the square root of 36 can be converted into an integer, namely 6 and -6.

Hence, it is a rational root.

7. The summation, on the other hand, cannot be simplified any further, so it will stay as irrational. This is because √2 is already an irrational root, and adding it onto a number that is rational will stay as irrational.

8. Once again, the summation cannot be simplified. We can only simplify by factoring like terms. Hence, this must be irrational.

9. Even if it is in fractional notation, √5 can never be a rational number because no two integers when multiplied by itself will give 5. So, even if it is written in fractional form, they cannot be rational if there is an already irrational term in it.
4 0
3 years ago
On the day of the field trip, each teacher must call the parents of any student who has not returned a permission slip. All of M
Archy [21]

Answer:

B

Step-by-step explanation:

B is the correct answer.  Since Mrs. Hooper and Mr. Anderson had to call a total of 8 parents, you know the first equation must be either A or B (H + A = 8).

Since you know that Mrs. Hooper had to call 2 more parents than Mr. Anderson, the equation will have to have H + 2 on one side; that's how you know the correct answer is B.

7 0
3 years ago
38 is 8 percent, of what number?
adoni [48]

Answer:

475

Step-by-step explanation:

Is means equals.  We need to change 8% to a decimal.  8% = .08.  Of means multiply.  X is the unknown number.

38 = .08 * x

Divide each side by .08

38/.08 = .08x /.08

475 = x

The unknown number is 475

6 0
3 years ago
Read 2 more answers
MAJOR HELP!! Please help someone please..
VMariaS [17]

Answer:

x=8.48

Step-by-step explanation:

Sin 45 = x/12

x=12 x sin 45

x=12 x .7071

x=8.48

7 0
2 years ago
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