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g100num [7]
2 years ago
15

What must be true for lines a and b to be parallel lines? Select two options.

Mathematics
1 answer:
USPshnik [31]2 years ago
8 0
The answer is 58 degrees so e
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Brand A: $5 for 80 pounds of sand Brand B: $14 for 175 pound bag Which is the better buy?
nevsk [136]

Answer:

Brand A is the better buy

Step-by-step explanation:

bag Which is the better buy?

Step one

Brand A: $5 for 80 pounds of sand

Let us find the unit cost

Unit cost =5/80

=$0.0625 per pound

Brand B: $14 for 175 pound

The unit cost is

=14/175

=$0.08 per pound

4 0
3 years ago
Help please i need it bad
evablogger [386]

Answer:

-13, -3

15, 2.6

Step-by-step explanation:

x, y are the numbers

x = 5y + 2

x×y = 39

(5y + 2)×y = 39

5y² + 2y - 39 = 0

the solution of a quadratic equation :

y = (-b ± sqrt(b² - 4ac))/2a

a = 5

b = 2

c = -39

y = (-2 ± sqrt(2² - 4×5×-39))/2×5 =

= (-2 ± sqrt(4 + 780))/10 =

= (-2 ± sqrt(784))/10 = (-2 ± 28)/10

y1 = (-2 + 28)/10 = 26/10 = 2.6

y2 = (-2 - 28)/10 = -30/10 = -3

x1 = 5×2.6 + 2 = 13 + 2 = 15

x2 = 5×-3 + 2 = -15 + 2 = -13

5 0
2 years ago
Stuck on this problem of my hw. could use some help!​
Mazyrski [523]

Answer:

12 is the answer

Step-by-step explanation:

4 0
3 years ago
1. 2. 3. 4. pls answer
Katyanochek1 [597]

Answer:

First clear your question please.

Step-by-step explanation:

4 0
2 years ago
Please help i will give brainly
xeze [42]

Answer:

Step-by-step explanation:

Lo lamento no se la respuesta espero que la

encuentres

4 0
3 years ago
Read 2 more answers
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