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hichkok12 [17]
4 years ago
14

Geometry question, please help!!

Mathematics
1 answer:
kari74 [83]4 years ago
8 0

Answer:

67

Step-by-step explanation:

Any four sided shape has 360 in total angles

You have two right angles=180

so your remaining angles also equal 180 because 360-180=180

set the equation: 15x+8+10x-3=180

add like terms: 15x+10x=25x  8-3=5  25x+5=180

move the five tot he other side to isolate the x: 25x=180-5  25x=175

divide 175 by 25 to get x by itself: x=175/25 x=7

plug in x: 10x-3  10(7)-3   70-3  67

the angle required = 67 degrees

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diamong [38]

Answer:

m>−5

Step-by-step explanation:

6 0
3 years ago
A large department store examined a sample of 18 credit card sales and recorded the amounts charged for each of three types of c
Leokris [45]

Answer:

d. 2 in the numerator, 15 in the denominator

Step-by-step explanation:

Analysis of variance (ANOVA) "is used to analyze the differences among group means in a sample".  

The sum of squares "is the sum of the square of variation, where variation is defined as the spread between each individual value and the grand mean"  

If we assume that we have 3 groups and on each group from j=1,\dots,n_j we have n_j individuals on each group we can define the following formulas of variation:  

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SS_{between}=SS_{model}=\sum_{j=1}^p n_j (\bar x_{j}-\bar x)^2  

SS_{within}=SS_{error}=\sum_{j=1}^p \sum_{i=1}^{n_j} (x_{ij}-\bar x_j)^2  

We want to test this hypothesis:

\mu_{Master card}=\mu_{Visa}=\mu_{Discover}

And we have this property  

SST=SS_{between}+SS_{within}  

The degrees of freedom for the numerator on this case is given by df_{num}=df_{within}=k-1=3-1=2 where k =3 represent the number of groups.

The degrees of freedom for the denominator on this case is given by df_{den}=df_{between}=N-K=18-3=15.

And the total degrees of freedom would be df=N-1=18 -1 =17

On this case the correct answer would be 2 for the numerator and 15 for the denominator.  

d. 2 in the numerator, 15 in the denominator

6 0
3 years ago
What is the Lcm of 2 and 7
wel

Answer:

14

Step-by-step explanation:

The least common multiple is a number that both numbers can multiply something to get to, and the smallest possible common one.

Let's try listing out the multiples of 2:

2, 4, 6, 8, 10, 12, 14, 16, 18, 20

And the multiples of 7:

7, 14, 21, 28, 35, 42, 49, 56, 63, 70

Notice that both have the number 14 in common, and it is the first number that they do so.  There are lots of other multiples that they have in common too, but 14 is the least.

5 0
3 years ago
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kiruha [24]

Answer:

A=1250m^2

Step-by-step explanation:

From the question we are told that

Dimension of drawing

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Scale of drawing

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4 0
3 years ago
How do you turn into a fraction a number with negative exponents ?
romanna [79]

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3 0
3 years ago
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