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pogonyaev
3 years ago
6

Which of the following equations have no real solution but have two complex solutions?

Mathematics
1 answer:
Helga [31]3 years ago
5 0
Answer: 3x^2 - 5x = -8, 2x^2 = 6x - 5 and -x^2 -10x = 34

Explanation:

Because there discriminant are less than 0

Discriminant = b^2 - 4ac

We use this formula to determine the if the equation has real roots or not
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Suppose that F(x) = x^3 and G(X) = -3x^3. Which statement best compares the
Alik [6]

Answer:

D. The graph of G(x) is the graph of F(x) flipped over the y-axis and

stretched vertically.

Step-by-step explanation:

since there is a negative, there must be a reflection. the reflection is over the y-axis because it is outside the x-value (-F(x) not F(-x))

the same goes for the vertical stretch. we know it is a vertical stretch because the 3 is outside the x-value (3F(x) not F(3x))

6 0
3 years ago
I need help with these three questions (please help me turn them into algebraic form) Thanks!
Ann [662]
The quotient means divide.....the difference means subtract
the quotient of 5 and the difference of a number and 3..
5 / (x - 3) <== ur expression

the product means multiply....decreased means subtract
the product of a number and 20 decreased by 11..
20x - 11 <== ur expression

the difference means subtract 
the difference of 30 and a number, multiplied by 2
2(30 - x) <== ur expression
7 0
3 years ago
Read 2 more answers
If tan x =1/2<br> find sin x<br> 2
irina1246 [14]

Answer:

t

=

26

∘

57

+

k

360

∘

Step-by-step explanation:

tan

t

=

1

2

Calculator and unit circle give 2 solutions for (0, 360) -->

t

=

26

∘

57

, and

t

=

180

+

26.57

=

206

∘

57

General answer:

t

=

26

∘

57

+

k

360

∘

6 0
3 years ago
Which values represent the first two terms of the sequence a1=2 and an=-4(an-1)^2?
cricket20 [7]
<span>a1= (which is the first term.)
 to find the 2nd term you plug in 2 for (an) in the formula given to you. =-4(2-1)^2 *remember an represents the term u are looking for *
 now you start to solve it
 -4(2-1)^2
 -4 (1)^2 .
-4^2 = 16
 so your first two terms are 2 and 16 .</span>
4 0
3 years ago
A 30cm board is cut down to be 25.5 cm. What is the percent decrease in length?
zmey [24]
Okie, so percent decrease is the amount loss divided by the original number and multiplied by 100 to find the percent. This is because you are finding the amount loss in terms of the total amount - percent basically.
The amount loss : 4 feet
4 feet/ 12 feet = .3333 (ratio of how much cut) multiply by 100 --> 33.3% decrease. From 12 feet to 8 feet is a 33.3 % decrease. I hope this helps :-)
8 0
3 years ago
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