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stealth61 [152]
3 years ago
5

What is class boundaries's answer?

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
8 0

Answer:

class boundaries are the end points of an open interval which contains the class interval such that the lower class boundary (LCB) is the LCL minus one-half the tolerance and the upper class boundary (UCB) is the UCL plus one -half the tolerance.

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If quadrilateral PQRS is a kite, which statements must be true? Check all that apply.
mel-nik [20]

A kite is a quadrilateral in which two disjoint pairs of consecutive sides are congruent (“disjoint pairs” means that one side can’t be used in both pairs).

Then:

  • Two disjoint pairs of consecutive sides are congruent by definition - QP≅QR and QR is not congruent to RS (one side can’t be used in both pairs);
  • One diagonal (segment QS, the main diagonal) is the perpendicular bisector of the other diagonal (segment PR, the cross diagonal), so PM≅MR;
  • The opposite angles at the endpoints of the cross diagonal are congruent, thus ∠QPS≅∠QRS.
  • ∠PQR is not congruent to ∠PSR, because they are not angles at the endpoints of the cross diagonal.

Answer: correct options are A, B and E.

3 0
3 years ago
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You are helping Folsom's city manager adjust traffic patterns for the new residents south of Hwy 50. A traffic light changes eve
Nikolay [14]

Answer:

120 minutes

Yes my answer makes sense

Step-by-step explanation:

This question has to do with Lowest Common Multiples

1) After how many minutes will both lights change at the same time again?

Step 1

We would find and list multiples of each number until the first common multiple is found.

Multiples of 30:

30, 60, 90, 120, 150, 180

Multiples of 40:

40, 80, 120, 160, 200

Step 2

The first common multiple of 30 aand 40 is the lowest common multiple.

Therefore,

LCM(30, 40) = 120

Therefore, both lights will change at the same time after 120 minutes.

2) Why does your answer make sense?

Lowest common multiple is a methodology used in mathematics to show the relationship between two numbers based on their multiples.

My answer makes sense because the only way both traffic light would come up at the same time can only be determined using the methodology of Lowest Common Multiple.

Hence, both lights will change at the same time after 120 minutes.

3 0
3 years ago
Find the mean of the ending balance in Teresa account for the week answers: -$2 $20 $115 $134
Leno4ka [110]

Answer:

$115

Step-by-step explanation:

I did it and I got it right

Don’t mind the one star rating I pressed it by accident but I promise it’s right

3 0
3 years ago
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Can somebody tell me the answer to −5/8+(−3/4)
hoa [83]

Answer:

he

Step-by-step explanation:

7 0
3 years ago
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2.5(12.75x + 24.50) = 188.75
mrs_skeptik [129]

Answer:

Step-by-step explanation:

First, in order to get rid of the parenthesis, you need to multiply 2.5 with whatever is in the parenthesis.

Multiply 2.5 on each side of the equation like this:

(12.75 x 2.5) (24.50 x 2.5) =188.75

Once you're finished, you should get 61.25 and 31.875x =188.75

Now in order to find 'x' you will need to subtract 61.25 to each side of the equation like this:

61.25 - 61.25 = 0

188.75 - 61.25 = 127.5

So now your equation should look like this:

31.875x = 127.5

You have to divide 31.875 by each side now.

Once you divide them, your final answer should be 4.

so x = 4.

I really hope this helps! ^^

5 0
3 years ago
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