All categories

3 years ago

Identify the property shown: 5 + (7+8) = (5+7) + 8

Mathematics

2 answers:

Savatey [412]3 years ago

6 0

Answer:

oder of operations

Step-by-step explanation:

factor it out

mel-nik [20]3 years ago

4 0

Answer:

Associativity

Step-by-step explanation:

Associativity defines that grouping elements within in a group in different successive fashion doesn't make them loose their meaning.

Example

(A×B)× C= A×(B×C)

You might be interested in

You how many miles are there in 86.88 km 1.6 km equals to 1 miles or conversion

ozzi

86.88 kilometers is 53.98 miles

3 0

3 years ago

In an effort to determine whether any correlation exists between the price of stocks of airlines, an analyst sampled six days of

vovikov84 [41]

Answer:

Check the explanation

Step-by-step explanation:

Following table shows the calculations:

Delta, X Southwest , Y X^2 Y^2 XY

45.96 38.76 2112.3216 1502.3376 1781.4096

46.8 45.41 2190.24 2062.0681 2125.188

47.93 15.7 2297.2849 246.49 752.501

51.78 49.58 2681.1684 2458.1764 2567.2524

52.17 44.34 2721.7089 1966.0356 2313.2178

47.36 18 2242.9696 324 852.48

Total 292 211.79 14245.6934 8559.1077 10392.0488

Sample size: n =6

Now

$S_{yy}=\sum y^{2}-\frac{\left (\sum y \right )^{2}}{n}=1083.27$

$S_{xx}=\sum x^{2}-\frac{\left (\sum x \right )^{2}}{n}=35.03$

$S_{xy}=\sum xy-\frac{\left (\sum x \right )\left (\sum y \right )}{n}=84.94$

The coefficient of correlation is :

$r=\frac{S_{xy}}{\sqrt{S_{xx}S_{yy}}}=0.436$

7 0

4 years ago

Solve for y when x = 2. y = 4x +2 * I REALLY NEED HELP HHDJDICUHDHHEI HELP ME BRUH

Oksi-84 [34.3K]

Answer:

y=10

Step-by-step explanation:

y=4x+2

y=4(2)+2

y=8+2

y=10

8 0

4 years ago

Read 2 more answers

If y varies inversely as the square root of x, what is the constant of proportionality if y = 16 when x = 4?

krek1111 [17]

The answer is D.64

Explain i have the test myself

5 0

3 years ago

I need help on the steps of solving this problem?.<br> divide 4950 and 75

ryzh [129]

Answer:

4950/75 = 66

Step-by-step explanation:

Use a calculator to help you out!

4 0

3 years ago

Read 2 more answers