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valentina_108 [34]
3 years ago
6

WILL MARK THE BRAINIEST PLZ HELP NOW!!! LOTS OF POINTS Determine how many solutions there are and if there are solutions solve f

or angle B. a) a=9, b=11 and A= 61 degrees b) a=25, b= 28 and A= 43 degrees.
Mathematics
1 answer:
harina [27]3 years ago
4 0
<h3>Answer:</h3>

a) no solutions

b) B = 49.8° or 130.2°

<h3>Explanation:</h3>

a) By the law of sines, ...

... sin(B)/b = sin(A)/a

... sin(B) = b·sin(A)/a = (11/9)·sin(61°) = 1.069 . . . . . not realizable

there is no solution

b) As before, ...

... sin(B) = (28/25)·sin(43°) ≈ 0.763838...

... B = arcsin(0.763838...) ≈ 49.80°

The side length b is longer than the side length a, so there will be two solutions. The other angle for B is the supplement to this one:

... B = 180° -49.8° = 130.2°

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iren2701 [21]

Answer:

μ = 1.3468

Step-by-step explanation:

Given data:

Observations

0.85

0.88

0.88

1.06

1.09

1.12

1.29

1.31

1.42

1.49

1.59

1.62

1.65

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1.76

1.83

sum of the observations = 21.55

now,

the total number of the given data, n = 16

now, the mean is given as:

Mean = (Sum of all the observation) / (Total number of observations)

on substituting the values in the above formula, we get

Mean = 21.55 / 16

or

Mean = 1.3468

Since, it is given that the data follows normal distribution.

thus, the normal mean can be used as the point of estimator (μ)

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3 0
3 years ago
A football team lost five yards on each of two consecutive plays. Find the total change in yardage.
maria [59]

Answer:

The change is a loss of 10 yards, so -10 yards.

Step-by-step explanation:

The total change in yardage after 2 plays is the sum of the yardage of each play.

What lost yardage means?

Lost yardage means negative yardage.

Imagine that in a Buffalo Bills game, Devin Singletary lost 2 yards on his first carry. So his total yardage is -2.

If in the next carry he gets 3 yards, his total yardage is 1. If he loses 1, his total yardage is -3.

First play

Loss of 5 yards.

So the first play counts for -5 yards.

Second play

Loss of 5 yards.

So the second play counts for -5 yards.

Total

-5 - 5 = -10

The change is a loss of 10 yards, so -10 yards.

8 0
3 years ago
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JulsSmile [24]

you already know i gotchu :)

Answer: u = 5

Step-by-step explanation:

first, i moved the terms.

-4u + 10u = 37 - 7

then, i collected the like terms and calculated them.

6u = 30

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4 0
3 years ago
Describe the graph of the equation x = –2. Is the equation a function?
Nady [450]

Answer:

The equation of a vertical line in the graph, that is parallel to the y-axis is x = a. The slope of a vertical line is infinity or undefined as it has no y ...

4 0
3 years ago
7. Simplify Completely. 3(y + 2) + 2(y-2)*
konstantin123 [22]

Answer:

y= -10

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It's complicated to explain but yeah.

8 0
3 years ago
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