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bija089 [108]
3 years ago
6

Triangle ABC measures are as follows; Angle A measures 30 degrees, angle B measures (3x-9) degrees and angle C measures 29 degre

es. What is the value of x?
Mathematics
1 answer:
ludmilkaskok [199]3 years ago
8 0

Answer:

x = 43 1/3 degrees

Step-by-step explanation:

sum of interior angles in a triangle = 180 degrees

30 + (3x - 9) + 29 = 180

30 + 29 + (3x - 9) = 180

59 + (3x - 9) = 180

(3x - 9) = 180 - 59

(3x - 9) = 121

3x = 121 + 9

3x = 130

x = 43 1/3

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If the null hypothesis of an experiment is “The true mean weight of the geese is greater than 40 pounds” what is the alternate h
Naddika [18.5K]

Answer:

<em>The true average weight of geese is less than or equal to 40 pounds</em>

Step-by-step explanation:

The null hypothesis and the alternative hypothesis are two mutually exclusive statements or hypotheses that are made about a population. The purpose is to find out if, through a study of the data, sufficient evidence is obtained to reject one and accept another

The null hypothesis is denoted as H_0 and the alternative hypothesis as H_1

As they are two mutually exclusive statements then if

H_0: <em>"The true average weight of the geese is greater than 40 pounds"</em>

the alternative hypothesis must be the opposite of the null hypothesis

H_1: <em>"The true average weight of geese is less than or equal to 40 pounds"</em>

4 0
3 years ago
A store pays $113 for a swing set and marks the price up by 20%. What is the amount of
gtnhenbr [62]

Answer:

$22.6 markup

Step-by-step explanation:

Just find 20 percent of 113 and you’ll get 22.6

if you want price including the markup (final price) its $139.6

7 0
3 years ago
Can somebody help? make it correct please.
Bumek [7]

Answer:

16

Step-by-step explanation:

To get the next number just mulitply by 4

4*4=16

( just to make sure we're correct)

16*4=64

64*4=256

256*4=1024

1024*4=4096

7 0
3 years ago
Please help lots of points
Colt1911 [192]

Answer:

directrix

Step-by-step explanation:

The parabola is equidistant from the line called the directrix

and from a point called the focus

4 0
3 years ago
Read 2 more answers
Identify is this is percent increase or percent decrease, then calculate percentage
vlabodo [156]

<em>Last year the chess club had 30 members. This year the club has 24 members. </em>

Last year, the chess club had 30 members. This year, the club has 24 members. Since this year had less than last year ( 30 > 24), the percent will be decreasing.

To find the percent decrease, you have to use the following formula.

\frac{Difference}{Original} \times 100

Difference refers to the difference between the two numbers, 24 and 30. The difference between 24 and 30 is 6. Original refers to the original number, which is last year's amount of members in the chess group. Therefore, original = 30.

Substitute the numbers into the formula.

\frac{Difference}{Original} =\frac{6}{30} =0.2

To convert the decimal to a fraction, multiply the decimal by 100.

0.2 \times 100 = 20 \%

The answer is the number of chess members decreased by 20%.

____

Since I started off by identifying whether it was decreasing or increasing, I did the work a bit differently. When finding the difference, you would usually subtract 30 from 24, which results in -6. Above I used 6, but if you used -6, you would end up with a result of -20%, which means it decreased by 20%. They bot end up with the same result, but you don't always have to first identify whether it's decreasing or increasing.

____

3 0
3 years ago
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