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Harman [31]
3 years ago
8

Write a quadratic equation whose solutions are 7i and -7i

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
4 0
x = \pm 7i  \\  \\ x^2 = -49 \\  \\ x^2 +49 = 0
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Please help asap.<br> no fake answers or links.<br> picture below.
sesenic [268]

Answer:

b is the correct answer. I'm sure ♡

Step-by-step explanation:

- don't mind this I had to edit my answer lol. but I hope I helped u good luck. If I'm wrong someone can correct me below ☆

8 0
2 years ago
Assuming that there are no hidden cubes, what is the front orthographic view of the diagram?
Makovka662 [10]

Answer:

the visible number of cubes is 7

Step-by-step explanation:

Assuming that there are no hidden cubes, the # of visible cubes is 7

7 0
1 year ago
intro urna sunt 24 de bile albe si 16 bile negre. se extrage la intamplare o bila . probabilitatea ca bila extrasa sa fie alba e
garri49 [273]

Answer:

\frac{3}{5}

Step-by-step explanation:

Given parameters:

Number of white balls  = 24

Number of black balls  = 16

Unknown:

The probability that white ball is drawn at random = ?

Solution:

The probability of an event is the likelihood of such an event to occur. That an event will occur has a probability of 1, it will not occur have a probability of zero.

In this problem, the total number of outcomes of drawing any ball has sample space of (24 + 16)outcomes  = 40outcomes.

Probability of an event  = \frac{number of successful outcome}{sample space}

                  Pr(white balls) = \frac{24}{40}   = \frac{3}{5}

4 0
3 years ago
Two numbers that differ by 46
Reil [10]

the complete question is

Find two numbers whose difference is 46 and whose product is a minimum


Let

x------->larger number

y-------> smaller number

P-------> product of the two numbers


we know that

x-y=46\\ y=x-46-----> equation 1

P=x*y-----> equation 2


substitute equation 1 in equation 2

P=x*[x-46]\\ P=x^{2} -46x


using a graph tool

see the attached figure


Find the value of x for that the product P is a minimum

the vertex is the point (23,-529)

that means, for x=23

the product is a minimum P=-529


find the value of y

y=x-46\\ y=23-46\\ y=-23


therefore


the answer is

the numbers are 23 and -23

7 0
2 years ago
Read 2 more answers
What is the sign of the product?<br><br> (0.5)(–0.5)(3.2)(–7.9)(–2.4)
Harlamova29_29 [7]
There are three negative signs so the product will be a negative. 
hope this helps
5 0
3 years ago
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