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Natasha2012 [34]
2 years ago
7

Help me out........1​

Mathematics
2 answers:
ipn [44]2 years ago
8 0

Answer:

17

Step-by-step explanation:

2x²+4x-7

-6²+(-12-7)

36+(-19)

17

Fiesta28 [93]2 years ago
6 0

Answer: -13

Step-by-step explanation:

2-(3^2)+4-3-7 = -13

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In a mixture 60 liters, the ratio of milk and water 2:1.If this ratio is to be 1:2, then what is the quantity of water to be fur
ella [17]

Answer:

Hello,

60L

Step-by-step explanation:

Quantity of water /Quantity of milk =2/1

Quantity of mixture= Quantity of water +Quantity of milk =60L

Quantity of milk =40 L

Quantity of water =20 L

Let say x the quantity of water to be added

New ratio =1/2=40/(20+x)

20+x=80 (cross products)

<u>x=60 </u> (L)

4 0
3 years ago
A student randomly guesses at 10 multiple choice questions. Each question has four possible answers with only one being correct,
dlinn [17]
I would just assume <span>a) find the probability that the student guesses EXACTLY 4 correct.

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8 0
3 years ago
Steven conjectures that for |x|&gt;5, it is true that x^3&gt;125. Is his conjecture correct? Why or why not?
vredina [299]

Conjectures are conclusions formed from evidences. Steven's conjecture that: x^3 > 125 is true because: x > 5 or x > -5 for |x| > 5

Given that:

|x| > 5

Split the inequality as follows:

x > 5 or x > -5

Take the cube of both sides

x^3 > 5^3 or x^3 > -5^3

Evaluate all exponents

x^3 > 125 or x^3 > -125

Steven's conjecture that: x^3 > 125 is true because:

x > 5 or x > -5 for |x| > 5

Read more about absolute inequalities at:

brainly.com/question/4688732

5 0
3 years ago
Helpppppp meeeee pleaseeeeee!!!!
Nikitich [7]

Answer: 15

Step-by-step explanation:

Just count the dots :)

8 0
3 years ago
Kelly, Jess, Sam and Evan are running for student council. Show all the ways that a president and vice president can be elected.
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