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Ket [755]
3 years ago
11

What is the Square root of -48 ?

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
5 0
6.93 
pls mark brainliest


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How do you find the first five terms of a sequence defined recursively
Blizzard [7]
Interesting question. Good to know for computer science.
Suppose you have a function like 
an = 3x - 2 Try the first couple
a1 = 3(1) - 2
a1 = 3 - 2
a1 = 1

a2 = 3(2) - 2
a2 = 6 - 2
a2 = 4 So each term differs by 3
a2 - a1 = 3

an = a_(n - 1) + 3
a3 = a2 + 3
a3 = 4 + 3 
a3 = 7

a4 = a3 + 3
a4 = 7 + 3
a4 = 10

a5 = a4+ 3
a5 = 10 + 3
a5 = 13

I'll do one more and then check it.
a6 = a5 + 3
a6 = 13 + 3
a6 = 16

a6 = 3x -2
a6 = 3*6 - 2
a6 = 18 - 2
a6 = 16 which checks.

So the general formula is
an = a_(n - 1) * k if you were multiplying or
an = a_(n - 1) + k if you were adding. The key thing is that you are working with the previous term.
6 0
3 years ago
This isosceles triangle has two sides of equal length that are longer than the length a of the base b the perimeter of the trian
agasfer [191]
The answer is 3.1 cm
Solution:
2(6.3)+b=15.7
12.6+b=15.7
subtract 12.6 from btohs ides
b=3.1
answer is base=3.1 cm
3 0
3 years ago
0.013<br>810.4<br>0.0006<br>50210<br>36.25<br>0.027<br> in scientific notation
m_a_m_a [10]

1.3 \times {10}^{ - 2}
8.104 \times  {10}^{2}
6 \times  {10}^{ - 4}
5.021 \times  {10}^{4}
3.625 \times  {10}^{1}
2.7 \times  {10}^{ - 2}
6 0
3 years ago
In right triangle ABC, shown below, cos C 9√130/9 find AC.
Afina-wow [57]

Answer:

<h2>AC = 9</h2>

Step-by-step explanation:

cosine=\dfrac{adjacent}{hypotenuse}\\\\\text{We have:}\\\\\cos C=\dfrac{9\sqrt{130}}{130}\\\\adjacent=AC\\\\hypotenuse=\sqrt{130}\\\\\text{Substitute:}\\\\\dfrac{9\sqrt{130}}{130}=\dfrac{AC}{\sqrt{130}}\qquad\text{cross multiply}\\\\130AC=(9\sqrt{130})(\sqrt{130})\qquad\text{use}\ \sqrt{a}\cdot\sqrt{a}=a\\\\130AC=(9)(130)\qquad\text{divide both sides by 130}\\\\\dfrac{130AC}{130}=\dfrac{(9)(130)}{130}\\\\AC=9

6 0
3 years ago
For each trip they charge on intail fee of 100 in additoin to a constant fee for each vertical letter climbed for instance the p
Helga [31]

Answer:

f = 100 + 0.133d

Step-by-step explanation:

For each trip, they charge an initial fee of 100 in addition to a constant fee for each vertical meter climbed.

For example, for 3000 meters of climbing, they charged the additional constant fee of 400.

Therefore, per meter climbing they charges \frac{400}{3000} = 0.133.

Therefore, if f represents the fee in dollars of a trip they climbed d vertical meters then we can model the situation as  

f = 100 + 0.133d (Answer)

3 0
3 years ago
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