3 years ago

3. Lucas owed his friend $12. He got

Mathematics

2 answers:

viva [34]3 years ago

6 0

Answer:

Step-by-step explanation:

sammy [17]3 years ago

6 0

Answer:

Step-by-step explanation:

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Test scores in a Test were normally distributed with a mean of 75 and a standard deviation of 10. Carl scored 90 in the Test . W

mylen [45]

Answer:

Z-score = 1.5

Step-by-step explanation:

Z-score = (x-mean)/standard deviation

= (90-75)/10

= 1.5

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2 years ago

Find the intercepts to graph the line. <br> 4x−y=−4

Murljashka [212]

Answer:

X intercept is -1

Y intercept is 4

Step-by-step explanation:

The intercepts are when the line goes through the x axis or when

the line goes through the y axis.

7 0

2 years ago

This is wrong and you need to take it down

lesya692 [45]

I don't think I fully understand what you mean.

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3 years ago

64 is 4 times the difference between Sarah's age, a, and 44. Assume Sarah is older than 44.

nlexa [21]

Answer:

Sarah is 60 years old

Step-by-step explanation:

64 divided by 4 is 16. Add 16 to 44 to get Sarah's age, 60

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2 years ago

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What is the most convenient method to solve the quadratic equation ( x + 4 )² = 15

IgorC [24]

Answer:

Factoring

Step-by-step explanation:

(x+4)² = 15

x² + 8x + 16 = 15

x² + 8x + 1 = 0

$x = \frac{ - 8 + \sqrt{64 - 4} }{2} = - 4 + \sqrt{15} \\ \\ x = \frac{ - 8 - \sqrt{64 - 4} }{2} = - 4 - \sqrt{15}$

I hope this helps you :)

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2 years ago

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