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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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Mary bought these art supplies: 4 paint brushes @ $1.29 each, 6 dowel rods @ $1.49 each, a jar of paste @ $1.25, and 2 canvases
Sophie [7]

Answer:

Option (1) is correct

The amount she receives back from $40 is  $12.65

Step-by-step explanation:

Given: Mary bought the art supplies.

4 paint brushes @ $1.29 each, 6 dowel rods @ $1.49 each, a jar of paste @ $1.25, and 2 canvases @ $6.00 each.

We have to find the change she get from $40.

We first find the total cost of the art supplies.

Since, she brought 4 paint brushes @ $1.29 each,

Thus, cost of 4 paint brush is  1.29 × 4 = $5.16

Also, 6 dowel rods @ $1.49 each,

Thus, cost of 6 dowel rods is  1.49 × 6 = $8.94

Thus, cost of 1 jar of paste  is $1.25

and 2 canvases @ $6.00 each

Thus, cost of 2 canvases  is $12.00

Thus, total cost of art supplies = 5.16 + 8.94 + 1.25 + 12 =$27.35

Thus, amount she receives back from $40 is $40 - $12.35 = $12.65

4 0
3 years ago
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Determine the domain and range of the graph below.
Leni [432]

Answer:

Last one

Step-by-step explanation:

3 0
3 years ago
Which statements describes the function f(x)=2(x-4)^4
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You're right, c is the answer because the function is a parabola because of the power of four
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Find the Perimeter of the figure below, composed of a rectangle and two
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Answer:

Step-by-step explanation:

3 0
3 years ago
3.24 x 10-4<br> 8.1 x 10-7
defon
28.4

Explanation

(Multiply the numbers) 3.24 x 10= 32.4
(Subtract the numbers) 32.4 - 4= 28.4
7 0
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