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gregori [183]
2 years ago
14

10 points please help math

Mathematics
2 answers:
Vadim26 [7]2 years ago
5 0

Answer: B and D

Step-by-step explanation:

mina [271]2 years ago
3 0
B and d I am pretty sure?
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Novak hiked for 1¼ miles. After resting, he continued hiking for 2½ miles. How far did Novak hike?
kolbaska11 [484]

Answer:

3 3/4 miles

Step-by-step explanation:

work:

1 1/4 + 2 1/2 = 3 3/4

3 0
3 years ago
The physical plant at the main campus of a large state university recieves daily requests to replace fluorescent lightbulbs. The
Bond [772]

Answer:

34% of lightbulb replacement requests numbering between 47 and 52

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 52

Standard deviation = 5

Between 47 and 52:

52 is the mean and 47 is one standard deviation below the mean.

By the Empirical Rule, 68% of the measures are within 1 standard deviation of the mean.

Since the normal distribution is symmetric, of those, 34% are within 1 standard deviation below the mean and the mean(47 and 52) and 34% are within the mean and one standard deviation above the mean(52 and 57).

So

34% of lightbulb replacement requests numbering between 47 and 52

3 0
2 years ago
Find X when y= -2 <br> Thank you for your help and have a blessed day
Andreas93 [3]

Answer:

x = -5

Step-by-step explanation:

4x+y=2(x+3y)\\\\4x-2=2(x+3(-2))\\\\4x-2=2(x-6)\\\\4x-2=2x-12\\\\4x-2+2=2x-12+2\\\\4x=2x-10\\\\4x-2x=2x-2x-10\\\\2x=-10\\\\\frac{2x=-10}{2}\\\\\boxed{x=-5}

Hope this helps.

8 0
3 years ago
Read 2 more answers
What is the factor for this expression:<br><br> 4x+20
sveticcg [70]

Answer:

4(x+5)

Step-by-step explanation:

factor out the 4

4(x+5)

7 0
3 years ago
Read 2 more answers
If EF bisects CD, CG =5x-1, GD = 7x-13, EF = 6x-4, and GF =13, find EG
VARVARA [1.3K]

<em>Greetings from Brasil....</em>

As stated in the statement of the question, EF is a bisector of CD, so point G is the median point of CD, so CG = GD

5X - 1 = 7X - 13

X = 6

EF = EG + GF

6X - 4 = EG + 13      x = 6, so

6·6 - 4 = EG + 13

<h2>EG = 19</h2>

<em>(see attachment)</em>

6 0
2 years ago
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