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Sladkaya [172]
3 years ago
12

Directions: Encircle the letter of the correct answer. 1. What is the value of the discriminant whose roots are real, rational,

and equal? A. imaginary B. negative C. positive D. zero 2. Which of the following quadratic equations has no real roots? A. 2x2 + 4x – 3 = 0 B. 3x2 – 2x + 5 = 0 C. x2 – 8x – 4 = 0 D. –2x2 + x + 7 = 0 3. If the sum of the roots of the equation x2 – 5x + 3 = 0 is added to the product of its roots, then the result is A. –3 B. –2 C. 5 D. 8 4. Find the equation whose roots are 1 3 and – 7 2 . A. 3x2 + 8x + 7 = 0 B. x2 + 3x + 6 = 0 C. 6x2 + 19x – 7 = 0 D. 7x2 - 18x + 6 = 0 5. Find the roots of 1 3x + 4x 6 = 1. A. 1 2 and 1 B. − 1 2 and –1 C. 3 and –6 D. 1 3 and 6
Mathematics
1 answer:
pantera1 [17]3 years ago
7 0

Answer:

I can't sorry Ang hba pnaman sorry po

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A magazine subscription costs $29.88 for 12 issues or $15.24 for 6 issues. Which subscription costs more per issue? How much mor
Valentin [98]

Answer:

The magazine that cost $15.24 for 6 issues cost more by $0.60/60 cents.

Step-by-step explanation:

Since $15.24 is 6 issues each and you need to even out the issues add $15.24+$15.24 then you would get $30.48, because its 15.24 each 6 add them both and it would be 12 issues. And the first issue $29.88 for 12 issues is  only $29.88 while the other is $30.48 so the one with 6 issues/the second cost more than the first.

60 cents more because 29.88+60=30.48.

3 0
3 years ago
Hi, can you help me answer this question, please, thank you!
frutty [35]

Given:

mean, u = 0

standard deviation σ = 1

Let's determine the following:

(a) Probability of an outcome that is more than -1.26.

Here, we are to find: P(x > -1.26).

Apply the formula:

z=\frac{x^{\prime}-u}{\sigma}

Thus, we have:

\begin{gathered} P(x>-1.26)=\frac{-1.26-0}{1} \\  \\ P(x>-1.26)=\frac{-1.26}{1}=-1.26 \end{gathered}

Using the standard normal table, we have:

NORMSDIST(-1.26) = 0.1038

Therefore, the probability of an outcome that is more than -1.26 is 0.1038

(b) Probability of an outcome that

4 0
1 year ago
Yuuma applied the steps below to find the product of (–10.2)(–16.4).
goblinko [34]

Answer:

164+3.28

Step-by-step explanation:

(16.4)(10)+(16.4)(0.2)

164+3.28

167.28

4 0
2 years ago
Solve 2 (3d + 3) = 7 + 6d.
Leni [432]

First distribute in the 2 on the left side to get 6d+6=7+6d

Then, you would combine the variables to be on one side of the equation by doing -6d. However, this would cancel out the d by leaving you with 0d+6=7. That is the same thing as saying 6=7.

The answer to this equation is no solution because 6 is NOT equal to 7.

4 0
3 years ago
Read 2 more answers
Find the value of p in the figure below.
nirvana33 [79]

From the chord theorem we have:

4\cdot4.5=6\cdot(2p-3)\\\\18=12p-18\\\\12p=18+18\\\\12p=36\qquad|:12\\\\\boxed{p=3}

6 0
3 years ago
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