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Ymorist [56]
4 years ago
12

In space, the intersection of two planes is

Mathematics
1 answer:
Len [333]4 years ago
5 0
<span>If these planes are not parallel then intersection would </span>form a line.

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Find the sum of the roots the following equation. The subject is quadratic equations with a maximum power of two (things like a(
Alexus [3.1K]

\bf (2x^2-3x)^2+4(2x^2-3x)+3=0\qquad \boxed{a=2x^2-3x}\implies a^2+4a+3=0 \\\\\\ (a+3)(a+1)=0\implies a= \begin{cases} -3\\ -1 \end{cases}\qquad \stackrel{\textit{their sum}}{-3-1\implies -4}

8 0
3 years ago
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4/7 divided by 34 6/7
lesya692 [45]

5712 is the answer. Hope it helps.

5 0
3 years ago
Evaluate and Solve 6x + 4 &gt; 7
DedPeter [7]

Answer:

x>1/2

Step-by-step explanation:

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4 0
3 years ago
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The differencee of 3 times a number and 18 is 39
Bingel [31]

Answer:

3x-18 = 39

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x = 19

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Step-by-step explanation:

hope it help

7 0
4 years ago
7.<br> Evaluate f(x) = -2x - 5 for x = 3.<br><br> A. 1<br><br> B. 11<br><br> C. –6<br><br> D. –11
Yuliya22 [10]
I think the answer is d. -11

Explanation:

Replace the variable x with 3 in the expression.
f(3)=-2•3-5

Multiply -2 by 3
f(3)=-6 -5

Subtract 5 from -6
f(3)= -11

Then the answer should be -11.
4 0
3 years ago
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