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3 years ago

15

Find the value of given expression

title=" \sqrt{220 + 221} " alt=" \sqrt{220 + 221} " align="absmiddle" class="latex-formula">

2 answers:

mr_godi [17]3 years ago

8 0

Answer:

√{220 + 221}=√441=±21 is your answer

Ymorist [56]3 years ago

5 0

Answer:

the answer will be 21 I hope this help you

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The _____ of a type of measurement indicates how free that measurement is from random error. Multiple Choice validity verifiabil

Veronika [31]

Answer:

Reliability

Step-by-step explanation:

Here, we want to select the option that best completes the given question

The correct answer is the reliability

When we speak of how reliable a type of measurement is, we are simply referring to how free the particular measurement is from random error

Measurements that are free from random error are said to be reliable

8 0

3 years ago

Does the table shows a proportional relationship

yarga [219]

Yes it does because it is even in each side

8 0

3 years ago

A bag contains ten identical blue marbles and ten identical green marbles. In how many distinguishable ways can five of these ma

ivann1987 [24]

Answer: 11 different rows.

Step-by-step explanation:

As the marbles are identical, we do not really care for permutations (as we can really not difference them)

If we have 5 blue marbles, we have only one combination.

B-B-B-B-B

If we have 4 blue marbles, we have 3 combinations:

B-B-B-B-G, G-B-B-B-B, B-B-G-B-B

This is because the blue marbles need to be next to another blue one, so from here we can do the same analysis.

If we have 3 of them, we have 3 combinations.

B-B-B-G-G, G-B-B-B-G, G-G-B-B-B

If we have 2 of them, we have 4 combinations

B-B-G-G-G, G-B-B-G-G, G-G-B-B-G, G-G-G-B-B

then we have 1 + 3 + 3 + 4 = 11 combinations

7 0

3 years ago

Help me help me help me

8_murik_8 [283]

Answer:

read step by step

Step-by-step explanation:

6 is +4.

19, 23, 27, 31

7 is all perfect square numbers

25, 36, 49, 64

8 is x2.

32, 64, 128, 256

9 is each number multiplied by the next. ex: 1x2=2, 2x3+6, 3x4=12

so the next few would be 30, 42, 56, 72

6 0

3 years ago

Pls show me the work and answerr

IgorC [24]

Answer:

B

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

4x + 5y = - 45 ( subtract 4x from both sides )

5y = - 4x - 45 ( divide terms by 5 )

y = - $\frac{4}{5}$ x - 9 ← in slope- intercept form

with slope m = - $\frac{4}{5}$

Given a line with slope m then the slope of a line perpendicular to it is

$m_{perpendicular}$ = - $\frac{1}{m}$ = - $\frac{1}{-\frac{4}{5} }$ = $\frac{5}{4}$ , then

y = $\frac{5}{4}$ x + c ← is the partial equation

To find c substitute (- 4, - 11 ) into the partial equation

- 11 = - 5 + c ⇒ c = - 11 + 5 = - 6

y = $\frac{5}{4}$ x - 6 → B

6 0

3 years ago

Read 2 more answers