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Ghella [55]
3 years ago
7

Solve 3x2 + 6x + 15 = 0 Choices: −1 ± i − 1 ± 2i −2 ± i −2 ± 2i

Mathematics
1 answer:
finlep [7]3 years ago
8 0
To solve this question you have to use the quadratic equation. So since the problem is already in standard form it will be pretty easy. So the quadratic equation is x=-b±√b²-4ac/2a. Not sure if it makes sense through a computer xD Anywho, you just have to input the values in the equation into the quadratic equation. From your problem a=3 b=6 and c=15. So just substitute those into the quadratic equation then simplify. In the end you should get -6±12i/6. Divide everything by 6 and you should get -1<span>±2i!

The correct answer is -1</span><span>±2i</span>
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Is 3x+x equivalent to x(2+1)
Cloud [144]

Answer:No

Step-by-step explanation:

first values is 3x+x = 4x

second value is x(2+1) = x(3) = 3x

since 3x!=4x . answer is no.

5 0
3 years ago
I’m confused on this one
andrew-mc [135]

First we need to know the point slope form. It is y - y1 = m(x - x1). In the y1 and x1 spots, you just plug in any coordinate on the line.

m would be the slope which we already know as 5/3.

We are given the coordinate point (0,3) as a point on the line. This is also what we are going to plug into the equation. 0 will be x1 and 3 will be y1.

Our equation should then look like after plugged in as....

y - 3 = 5/3(x)

x is by itself because subtracting or adding by 0 yield the original number.

6 0
3 years ago
Melissa lives 5/6 of a mile from the bus stop. pete lives 2/3 of a mile from the bus stop. how much closer to the bus stop does
valina [46]
Melissa lives 5/6 of a mile from the bus stop 5/6 of a mile is 0.83
Peter lives 2/3 of a mile from the bus stop, 2/3 of a mile is 0.66 miles
Pete does not live close to the bus stop than Melissa.
Melissa lives 0.83 - 0.66 = 0.17 miles closer to the bus stop 
8 0
3 years ago
Anyone know the actual answer?
Ilia_Sergeevich [38]
I think between B and C I think B is better

God bless!! <3
6 0
3 years ago
Fiona is goin to jog once around the block she lives on. The block is rectangular, and it is 180 yards long and 200 feet wide. H
irakobra [83]

Answer:

Fiona will jogged 1,080 feet

Step-by-step explanation:

180 x 2 = 360 yards

360 x 3 = 1,080 feet

3 0
3 years ago
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