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Amiraneli [1.4K]
3 years ago
8

What the answer now hurry up and answer fast question

Mathematics
1 answer:
sergey [27]3 years ago
5 0

Answer:

927.0 cm²

Step-by-step explanation:

Step 1: find Z

m < Z = 180 - (28 + 118) (sum of ∆)

= 180 - 146

Z = 34°

Step 2: Find side XY using the law of sines

\frac{XY}{sin(34)} = \frac{42}{sin(28)}

Cross multiply

XY*sin(28) = 42*sin(34)

XY*0.469 = 42*0.559

Divide both sides by 0.469

\frac{XY*0.469}{0.469} = \frac{42*0.559}{0.469}

XY = 50.06

XY ≈ 50 cm

Step 3: find the area.

Area of ∆ = ½*XY*YZ*sin(Y)

XY ≈ 50 cm

= ½*50*42*sin(118)

= 25*42*0.8829

Area = 927.045

Area ≈ 927.0 cm² (nearest tenth)

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Answer:

LBC is 75 degrees

Step-by-step explanation:

When you follow the angle measurements from the first and when one line equals 180, figuring out the other angle measurements can determine the answer for LBC.

8 0
4 years ago
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Serhud [2]
AP and BQ are medians of the triangle ABC and K is the centroid of the triangle.
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8 0
3 years ago
Estelle has 6 liters of juice. If she pours 0.25 liters into each glass, how many glasses of juice will she make?
aleksley [76]

Answer:

24 glasses

Step-by-step explanation:

We are given that

Estelle has juice=6 liters

She pours juice in one glass=0.25 L

We have to find the number of glasses of juice made by her.

Using unitary method

0.25 L juice pour in 1 glass

1 L juice pour in 1/0.25 glasses

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6 liters  juice pour in 24 glasses

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7 0
3 years ago
Do flashcards help students retain the Chinese Language? Six randomly selected students are given a pretest, asked to study a se
White raven [17]

Answer:

-1.64

Explanation:

Multiple Choice Answers that were not provided in the question:

a. 0.103 .

b. None of the above.

c. -4.16

d. -1.45

e. 2.86

f .-1.64

The provided data is as below:

             Student 1  Student 2  Student 3  Student 4  Student 5  Student 6

Pre- test    80              76              76              50             48              67

Post- test   75              86              87              60            48               68

Further Explanation:

                    Student 1  Student 2  Student 3  Student 4  Student 5  Student 6

Pre- test             80              76              76              50             48              67

Post- test            75              86              87              60            48               68

Pretest-Postest   5               -10              -11              -10            0                 -1

Calculating the mean of the difference (Pretest-postest) we get d bar = -4.5

Calculating the standard deviation  of the difference  (Pretest-postest) we get sd= 6.716.

Since sample score is under 30 and population standard deviation is unknown, we will use a tscore to find the standardized test statistic

t = dbar/(sd/√n) = -4.5/(6.716√6) = -1.642 ≈ -1.64

The test statistic is -1.64.

6 0
4 years ago
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hichkok12 [17]

Answer:

4

Step-by-step explanation:

I dont have a good explanation

4 0
4 years ago
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