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I am Lyosha [343]
3 years ago
9

Someone please help me

Mathematics
1 answer:
allsm [11]3 years ago
4 0

Answer:

Solutions: x = \frac{-3}{ 4} + i \sqrt{39},  x = \frac{-3}{4} - i \sqrt{39}

Step-by-step explanation:

Given the quadratic equation, 2x² + 3x + 6 = 0, where a =2, b = 3, and c = 6:

Use the <u>quadratic equation</u> and substitute the values for a, b, and c to solve for the solutions:

x = \frac{-b +/- \sqrt{b^{2} - 4ac} }{2a}

x = \frac{-3 +/- \sqrt{3^{2} - 4(2)(6)} }{2(2)}

x = \frac{-3 +/- \sqrt{9- 48} }{4}

x = \frac{-3 +/- \sqrt{-39} }{4}

x = \frac{-3 + i \sqrt{39} }{4}, x = \frac{-3 - i \sqrt{39} }{4}

Therefore, the solutions to the given quadratic equation are:

x = -\frac{3}{ 4} + i \sqrt{39} ,   x = -\frac{3}{4} - i \sqrt{39}

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Tanya has 15 plants.she gave away 6 of them. She used 2 flowers for each of her remaining plants to make a bouquet how many flow
kow [346]
If the question in how many WERE in her bouquet then it’s 15 bc that’s how many WERE originally in there. i’d it’s how many she has now it’s 7 flowers unless they are counting the flowers she used to make her bouquet then it’s 9 sorry if this is confusing
7 0
3 years ago
In a sample of 50 randomly selected students at a school, 38 students eat breakfast every morning. There are 652 students in the
Romashka-Z-Leto [24]
For the sample:
\frac{38}{50} = 0.76 = 76\%

Applying this to the whole population:

652 \times \frac {38}{50} = 495.52

Since we can't have "0.52 of a person" we roudn to the neares whole, or 496.
5 0
3 years ago
Can someone please explain this
SSSSS [86.1K]

Answer:

-1

Step-by-step explanation:

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4 0
4 years ago
Find the domain and range of 1/t+2
kotegsom [21]

Answer:

Domain = (-∞, -2) ∪ (-2, ∞).

Range =  (-∞, 0) ∪ (0, ∞).

Step-by-step explanation:

t can't have the value -2 because that would make  1/(t + 2) = 1/0 which is undefined.

So the domain is All real values of t. except t = -2.

As t approaches infinity or negative infinity  f(t) approaches  zero, and as t approaches -2 from below or above f(t) approaches negative infinity or positive infinity.

8 0
3 years ago
melania walked her dog 2 1 /5 miles. cqthy walked her dog 1 3/4 times as far as melania did. how many more miles did cathy walk
stira [4]
Let’s set this equation up to make this easier.

melanie= 2 1/5 miles walked
cathy= 1 3/4 more times than melanie.

when an equation says the word, more than this means adding. when it says less than this means subtraction. when it says times (in this question) then multiply.

so, if cathy walked 1 3/4 more times than melanie what we would do is multiply 1 3/4 to what melanie was walking. so 2 1/5 times 1 3/4 which equals 3.85.

so overall, cathy walked 3.85 more miles than melanie.
7 0
3 years ago
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