3 years ago

If a teacher asks you to elaborate more in a reflection, which of the following is he or she asking you

Mathematics

1 answer:

Volgvan3 years ago

8 0

I would guess give more detail

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What is the sum of 1,015 and 119 a. 896 b. 1,134 c. 1,224 d. 1,314

Julli [10]

b. 1134

1015

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1134

I hope this helps!

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3 years ago

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If 2/x+ 3/y =13 and 5/x- 4/y = -2, then x+y equals

creativ13 [48]

Answer:

$x + y = \frac{5}{6}$

Step-by-step explanation:

Let:

$u = \frac{1}{x} \\ v = \frac{1}{y}$

This allows us to manipulate the equations like we normally would.

$2u + 3v = 13 \\ 5u - 4v = - 2 \\ \\ + 8u + 12v = 52 \\ + 15u - 12v = - 6 \\ 23u = 46 \\ u = 2 \\ \\ 2(2) + 3v = 13 \\ 4 + 3v = 13 \\ 3v = 9 \\ v = 3$

Then, we return the values where they belong.

$u = \frac{1}{x} \\ 2 = \frac{1}{x} \\ x = \frac{1}{2} \\ \\ v = \frac{1}{y} \\ 3 = \frac{1}{y} \\ y = \frac{1}{3}$

Finally, we add:

$\frac{1}{2} + \frac{1}{3} = \frac{3}{6} + \frac{2}{6} = \frac{5}{6}$

7 0

3 years ago

Jenna calculated several numbers in her calculator. The result displayed -1.7E-4 on the calculator screen. Which equivalent numb

Alexeev081 [22]

I think it's
-0.00017 and -1.7 x 10-4

i hope this helps :)

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A polygon whose sum of its interior angle measure is 2340 has how many sides?

Phantasy [73]

The answer is : 15 sides

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Y = 10.5 x + 5 Please help me solve this equation. Solve for x.

Schach [20]

What is the context of the question

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3 years ago