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CaHeK987 [17]
3 years ago
13

In the following diagram lines m are n parallel the measures of AEB, BAE and CED are shown what is the measure of EBF

Mathematics
1 answer:
guapka [62]3 years ago
8 0

Answer:

∠ EBF = 98°

Step-by-step explanation:

(3x - 15) and (2x + 10) are vertically opposite angles and are congruent, then

3x - 15 = 2x + 10 ( subtract 2x from both sides )

x - 15 = 10 ( add 15 to both sides )

x = 25

3x - 15 = 3(25) - 15 = 75 - 15 = 60°

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

∠ EBF is an exterior angle of the triangle , then

∠ EBF = 60° + 38° = 98°

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timurjin [86]

I believe that  7/45 is a repeating decimal

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3 years ago
2+4+-56×43÷20+46-53​
Pavel [41]

Answer:

-121.4.

Step-by-step explanation:

2+4+-56×43÷20+46-53​  Multiply and divide are done first:

= 2+4 + -2408 / 20 + 46 - 53

= 2 + 4 - 120.4 + 46 - 53

= -114.4 - 7

= -121.4.

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3 years ago
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*HELP ASAP*
k0ka [10]

Using unit concepts, it is found that:

  • a) Grams.
  • b) Grams.
  • c) Grams squared.
  • d) Grams squared.

-----------------------------

  • For a data-set, the standard deviation has the same unit as the data-set, both for the sample and the population.
  • The variance has the unit squared, both for the sample and the population.
  • For example, if the data-set is in metres, the standard deviation will be in metres while the variance will be in squared metres.

-----------------------------

In this question, the data-set is in grams.

  • The standard deviation, both for the sample and the population, in items a and b, will be in grams.
  • The variance, both for the sample and the population, in items c and d, will be in grams squared.

A similar problem is given at brainly.com/question/14524219

5 0
2 years ago
Pls help asap!!!! tysm guys!!
Delvig [45]

Answer:

C. 256 in2

Step-by-step explanation:

8 0
3 years ago
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Mr. Trainer is building a bookcase. He has two wooden boards that are each 8 feet long. He needs to cut the wooden boards into p
love history [14]

Answer:

12

Step-by-step explanation:

Length of one of the boards = 8 feet

Converting to inches

1\ \text{foot}=12\ \text{inches}\\\Rightarrow 8\ \text{feet}=8\times 12=96\ \text{inches}

One cut is 16 inches

So, we divide the length of the board by 16

\dfrac{96}{16}=6

So, one board is cut into 6 pieces.

The other board is also 8 feet long.

So, the number of pieces the other board is cut into is also 6.

Hence, a total of 6+6=12 pieces of each 16 inches long can be cut from the two boards.

8 0
3 years ago
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