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mylen [45]
3 years ago
6

please help me answer this please! I need it fast I need all three of these answers and please show your work! Thank you very mu

ch!

Mathematics
1 answer:
mars1129 [50]3 years ago
5 0
15. In a similar figure the sides are proportional. So you have to say which ratio of sides is also proportional or which sides are equal to the fraction 44/35.2

it would be c because :
44/35.2 = 132/105.6

16. same thing with similar triangles. if the length of sides are similar then so is perimeter. So so we find the ratio of the side lengths. We we know sq is 6 and qt is 24. So st is 30. So so the line st and sq are matching and similar so we compare their lengths and get a ratio
sq * x = st
6 * x = 30
x = 5

So so the perimeter is 5 times more than small triangle so
5 * 20 = 100

17.similar side is 0.5 and 3.6 so ratio is 3.6/0.5. we know she is 1.8 talk so
1.8 * 3.6/0.5 = 12.96
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HELP. ME!!!
Natali5045456 [20]

Answer:

3.37 times

Step-by-step explanation:

Probability of hitting and odd number= 3/5

Probability of hitting and odd number=2/5

Probability of hitting and odd number three times= (3/5)^3

Probability of hitting and odd number three times=(2/5)^3

Now

(3/5)^3 / (2/5)^3 = 3.37

Hence Probability of hitting an odd number three times is 3.37 times more than the probability of hitting an even number three times !

3 0
3 years ago
Read 2 more answers
The number of degrees of freedom for the appropriate chi-square distribution in a test of independence is a. k – 1. b. A chi-squ
swat32

Answer:

Option C

Step-by-step explanation:

The chi square test of independence is used to determine if there is a significant association between two categorical variables from a population.

It tests the claim that the row and column variables are independent of each other.

The degrees of freedom for the chi-square are calculated using the following formula: df = (r-1) (c-1) where r is the number of rows and c is the number of columns.

5 0
3 years ago
The daily revenue at a university snack bar has been recorded for the past five years. Records indicate that the mean daily reve
faltersainse [42]

Answer: 0.9938

Step-by-step explanation:

Let x be the random variable that represents the daily revenue at a university snack bar.

As per given , we have

\mu=2700 , \sigma=400 and n= 100

Using formula z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}} ,

z-score for x= 2600

z=\dfrac{2600-2700}{\dfrac{400}{\sqrt{100}}}=-2.5

The probability that the average daily revenue of the sample is higher than $2600 :

P(x>2600)=P(z>-2.5)=P(z   [P(Z>-z)=P(Z<z)]

=0.9937903\approx0.9938

Therefore, the probability that the average daily revenue of the sample is higher than $2600 = 0.9938

8 0
3 years ago
I WILL GIVE BRAINLIEST!!!!
posledela

The answers to the questions are:

1. x = 4

2.  x = 1.5

3. x = 1.875

4. x = 1

<h3>2 step equation:</h3>

1. 4x + 3 = 19

4x = 19 - 3

4x = 16

divide by 4

x = 4

<h3>2 step equation w/ fractions:</h3>

(4/3)x + 5 = 17

= 1.33x + 5 = 7

Take like terms

1.33x = 7-5

1.33x = 2

divide through by 1.33x to get 2

x = 2/1.33

x = 1.5

<h3>3. Distributive Property:</h3>

4x(6 - 2) - 10 = 20

Multiply and open the bracket

24x - 8x - 10 = 20

Take like terms

16x = 20+10

16x = 30

x = 30/16

= 1.875

<h3>4. Decimals:</h3>

4.3x + 0.7 = 5

4.3x = 5 - 0.7

4.3x = 4.3

x = 1

Read more on distributive properties here:

brainly.com/question/2807928

#SPJ1

7 0
2 years ago
I do not understand this math.
miss Akunina [59]
BRUHHHHHHHHHHHHHHHHHGGGGG
6 0
3 years ago
Read 2 more answers
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