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adoni [48]
3 years ago
7

38+39+40+41+...+130+131

Mathematics
1 answer:
aliya0001 [1]3 years ago
6 0

Answer:

419

Step-by-step explanation:

the answer is 419 because 38+39=77+40=117+41=158+130=288+131=419

hope my math is correct =)

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Simplify the expression 5+6i/4+6i<br> A) 56-6i/-20<br> B) -16-6i/-20<br> C)56-6i/52<br> D) -16-6i/52
IRISSAK [1]

Answer:

The\ simplified\ form\ of\ the\ \frac{5 + 6i}{4 + 6i}\ is\ \frac{56-6i}{52}.

Option (C) is correct .

Step-by-step explanation:

As the expression given in the question as follows.

= \frac{5 + 6i}{4 + 6i}

Now rationalize the expression.

= \frac{5 + 6i\times 4 - 6i}{4 + 6i\times 4 - 6i}

Using the formula

a² - b² = (a - b) (a + b)

Using in the above

= \frac{5 + 6i\times 4 - 6i}{(4)^{2} - (6i)^{2}}

= \frac{5\times 4-5\times 6i+6i\times 4-36\ i^{2}}{16 - 36(i)^{2}}

As i² = -1

= \frac{20-30i+24i+36}{16 + 36}

= \frac{56-6i}{52}

Therefore\ the\ simplified\ form\ of\ the\ \frac{5 + 6i}{4 + 6i}\ is\ \frac{56-6i}{52}.

Option (C) is correct .

8 0
3 years ago
Read 2 more answers
If f(x) = 3x - 1 and g(x) = x + 2, find (f + g)(x).
Alexxx [7]

Answer:

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Step-by-step explanation:

Multiply f + g by x because f + g is in parenthesis:

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Then implement equation #1 for f(x) into our equation:

3x - 1 + g(x)

Then implement the other equation for g(x) into our equation:

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Then switch the positions of -1 and +x:

3x + x - 1 + 2

Simmplify:

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Pls consider giving my answer the Brainliest! Because it would help and mean a lot! ; )

4 0
4 years ago
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melomori [17]
<span>4^4 ⋅ 4^−9 = 4^(4-9)
</span>= 4^-5
1 / (4^5)

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3 years ago
Triangles PQR and SQT are similar triangles.
aleksklad [387]

Answer:

The side lengths of similar triangles are proportional

Step-by-step explanation:

8 0
3 years ago
A keyboard typically has 46 keys that can be modified and four ways to modify them, SHIFT, CTRL, ALT, and no modification. For i
Oksana_A [137]
I am thinking its 414 not 100%  tho

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