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Arturiano [62]
3 years ago
13

Find the solution set of the quadratic equation over the set of complex numbers -7x^2+12x=10

Mathematics
2 answers:
Margarita [4]3 years ago
7 0

Answer: it’s A

Step-by-step explanation:

I chose b and got it wrong and showed that it was a

Zarrin [17]3 years ago
3 0
I’m not sure honestly maybe B
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8n-12=6n+6 I need help figuring out this answer I been having some troble
Gennadij [26K]
Solve the equation with the following steps:
8n-12=6n+6
Subtract 6n from both sides
2n-12=6
Add 12 to both sides
2n=18
Divide both sides by 2
n=9
8 0
3 years ago
2. A right triangle has a hypotenuse of 15 cm. What are possible lengths for the two legs of the triangle? Explain your reasonin
dolphi86 [110]

Answer:

Two possible lengths for the legs A and B are:

B = 1cm

A = 14.97cm

Or:

B = 9cm

A = 12cm

Step-by-step explanation:

For a triangle rectangle, Pythagorean's theorem says that the sum of the squares of the cathetus is equal to the hypotenuse squared.

Then if the two legs of the triangle are A and B, and the hypotenuse is H, we have:

A^2 + B^2 = H^2

If we know that H = 15cm, then:

A^2 + B^2 = (15cm)^2

Now, let's isolate one of the legs:

A = √( (15cm)^2 - B^2)

Now we can just input different values of B there, and then solve the value for the other leg.

Then if we have:

B = 1cm

A = √( (15cm)^2 - (1cm)^2) = 14.97

Then we could have:

B = 1cm

A = 14.97cm

Now let's try with another value of B:

if B = 9cm, then:

A = √( (15cm)^2 - (9cm)^2) = 12 cm

Then we could have:

B = 9cm

A = 12cm

So we just found two possible lengths for the two legs of the triangle.

4 0
3 years ago
(4.3 x 10^-3)(2 x 10^-2) in standard form
notka56 [123]

Answer:

8.6•10^-5 or 0.000086

6 0
3 years ago
How many grams of barium chloride are there in 0.200 moles
Anni [7]
There are 41.646600000013 grams of barium chloride in 0.200 moles
5 0
3 years ago
Solve for c: a=7b+8c+9d-10
polet [3.4K]
<span>a=7b+8c+9d-10
a = 8c + 16d - 10
solve for c then
8c = a - 16d + 10
  c = (</span>a - 16d + 10) / 8
or
  c = a/8 - 2d + 5/4
7 0
3 years ago
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