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Sophie [7]
3 years ago
13

What is the sum of sqrt -2 and sqrt -18

Mathematics
1 answer:
Assoli18 [71]3 years ago
3 0

Answer:

4i sqrt(2)

Step-by-step explanation:

sqrt(-2) + sqrt(-18)

We know sqrt(ab)= sqrt(a) sqrt(b)

sqrt(-1)sqrt(2) + sqrt(9) sqrt(-2)

sqrt(-1)sqrt(2) + sqrt(9) sqrt(2)sqrt(1)

We know the sqrt(-1) is equal to i

i sqrt(2) +3 sqrt(2) i

i sqrt(2) +3i sqrt(2)

4i sqrt(2)

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According to the graph, what is the value of the constant in the equation
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\sf  \dag \: \red{Answer :-}

Let us consider point A,

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\sf :  \implies \: height =  \frac{constant}{width} \:  \:  \:  \:  \:  \:   \\  \therefore \sf constant = height \:   \times width

Now, we can simply put the given values at Point A,

\sf  \: constant = 30 \times 2 = 60

To verify, let's move on to next point, i.e. point B,

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Hope it helps you :)

7 0
3 years ago
Which expression is equivalent to 4(7 + 8)? (3 points) 11 + 8 11 + 12 28 + 12 28 + 32
sergij07 [2.7K]

Answer:

D) 28+32

Step-by-step explanation:

Well, if you solve the equation in the question, you derive 60.

So, solve all of the equations in the answer, and you find that the last answer choice is the only one that equals 60.

Hope this helped.

7 0
4 years ago
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Please solve this ASAP for 30 points
e-lub [12.9K]

Answer:

welpp

Step-by-step explanation:

3 0
4 years ago
Y=-×+1 and y=2×+4 how many solutions when graphed
dedylja [7]

Answer:

One solution (-1,2)

Step-by-step explanation:

Since these two linear equations have different slopes, different y-intercepts, and are indeed linear, these equations will only have one crossing when graphed, and hence one solution.

To find that solution, we can simply set the equations equal to each other.

y = -x + 1

y = 2x + 4

-x + 1 = 2x + 4

-3 = 3x

-1 = x

Now plug that value back into one of the equations:

y = -x + 1

y = -(-1) + 1

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So now you know the crossing for these two equations occurs at (-1,2).

Cheers.

3 0
3 years ago
Find 0.08% of 720.
kaheart [24]

Answer:

0.576

Step-by-step explanation:

0.08 x 720 /100   = 0.576

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