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salantis [7]
3 years ago
5

I need serious Help!

Mathematics
1 answer:
givi [52]3 years ago
7 0
I believe the answer is 21.862069 or 21R25 hope this helps you
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Line q has a slope of 3. line r is parallel to line q. what is the slope of line r?
Misha Larkins [42]

Answer:

998655

Step-by-step explanation:

yes

8 0
3 years ago
Given a mean of 61.2 and a standard deviation of 21.4 what is the z score of the value 90 rounded to the nearest tenth?
Nitella [24]

Answer:

The z-score of 90 is 1.35

Step-by-step explanation:

The z-score is calculated using the formula:

z =  \frac{x -  \mu}{ \sigma}

From the question, it was given that the mean is

\mu = 61.2

and the standard deviation is

\sigma = 21.4

and x=90.

We substitute the given values to obtain:

z =  \frac{90 - 61.2}{21.4}

z =  \frac{28.8}{21.4}  = 1.35

6 0
3 years ago
The lengths of the sides of a triangle are 15 cm, 20 cm, 30 cm. What are the lengths of the sides of a similar triangle that has
faust18 [17]

Answer:

6 cm,12 cm,8 cm

Step-by-step explanation:

add the perimeter of the first triangle to get 65

then divide 65 by 26 to get 2.5

then divide all the side lengths by 2.5

15/2.5=6

20/2.5=8

30/2.5=12

6 0
4 years ago
Read 2 more answers
How do u write 5(2x - 1) in a distributive property
Nookie1986 [14]

Answer:

5(2x-1) = 5(2x) - 5(1)

Step-by-step explanation:

The distributive property states that multiplying a sum or difference of two terms by a number is equal to multiplying the same number with each term of the sum or difference separately and then adding the products.

It can be written as:

a(b+c) = ab + ac

or

a(b-c) = ab - ac

So, for the given question,

=>5(2x-1) = 5(2x) - 5(1)

5 0
3 years ago
What is the perimeter of a square with an area of 81 cm2
tatyana61 [14]

Answer:

36 cm

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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