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astra-53 [7]
2 years ago
15

Much appriciated if helping​

Mathematics
2 answers:
Nikolay [14]2 years ago
8 0
The final answer should be 3

Goryan [66]2 years ago
6 0

Answer:

i think it is 3

Step-by-step explanation:

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How does an indirect proof different from a regular proof
prisoha [69]

Answer:

Regular proof is a method of proving the statement directly. In this method, we just proved it by using direct formula or theorem. whereas, Indirect proof is a way of proving by contradiction

Step-by-step explanation:

5 0
3 years ago
Question :-
DochEvi [55]

\qquad\qquad\huge\underline{{\sf Answer}}

Let's solve ~

\qquad \sf  \dashrightarrow \:  \bigg( \dfrac{1}{ \sqrt{7 +  \sqrt{5} } }  +  \sqrt{7 +  \sqrt{5} } \bigg) {}^{2}

\qquad \sf  \dashrightarrow \:  \bigg( \dfrac{1}{ \sqrt{7 +  \sqrt{5} } } \bigg ) {}^{2}  +  \bigg( \sqrt{7 +  \sqrt{5} } \bigg) {}^{2}  + 2 \cdot \dfrac{1}{ \sqrt{7 +  \sqrt{5} } }  \cdot \sqrt{7 +  \sqrt{5} }

\qquad \sf  \dashrightarrow \: \dfrac{1}{7 +  \sqrt{5} }  + 7 +  \sqrt{5}  + 2

\qquad \sf  \dashrightarrow \: \dfrac{49 + 7 \sqrt{5} + 7 \sqrt{5} + 5 + 14 + 2 \sqrt{5}   }{7 +  \sqrt{5} }

\qquad \sf  \dashrightarrow \: \dfrac{68+ 16 \sqrt{5}    }{7 +  \sqrt{5} }

5 0
2 years ago
Which is 2/3 of 18 <br>A. 27<br>B. 8<br>C. 12<br>D. 6
ahrayia [7]

Answer:

C. 12

Step-by-step explanation:

We know you have the number 18 and the fraction 2/3. The problem is we want to find out what 2/3 of 18 is. Well, if 18 divided by the denominator of that fraction (3) is 6 than we just add 6 because the question is asking for 2/3 NOT 1/3.

6 0
3 years ago
Given f(x) = X-7 and g(x) = x^2<br> Find f(g(4))
Sergio [31]

Answer:

9

Step-by-step explanation:

g(4)=4^2 =16, so we need to find f(16).

f(16)=16-7=<u>9</u>

7 0
2 years ago
Read 2 more answers
Show work , simplifying expression
choli [55]

Answer:

100

Step-by-step explanation:

Order of Operations: BPEMDAS

Step 1: Define

x(x - y)²

x = 4

y = 9

Step 2: Substitute and Evaluate

4(4 - 9)²

4(-5)²

4(25)

100

6 0
3 years ago
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