All categories

3 years ago

(6+2) +5 = 6+ (2+5) State the property described each problem

Mathematics

1 answer:

Tanzania [10]3 years ago

7 0

Answer:

Associative property - addition

Step-by-step explanation:

When three or more numbers are added, the sum is the same regardless of the way in which the numbers are grouped.

(6+2) + 5 = 6 + (2+5)

8 + 5 = 6 + 7

13 = 13

You might be interested in

My room is 7½ ft by 8 ¼ ft. If I want to put a border around it l mid help

victus00 [196]

9055&43882288273372737373

8 0

2 years ago

Announcements for 84 upcoming engineering conferences were randomly picked from a stack of IEEE Spectrum magazines. The mean len

Marina86 [1]

Answer:

Step-by-step explanation:

Hello!

You need to construct a 95% CI for the population mean of the length of engineering conferences.

The variable has a normal distribution.

The information given is:

n= 84

x[bar]= 3.94

δ= 1.28

The formula for the Confidence interval is:

x[bar]± $Z_{1-\alpha/2}$ *(δ/n)

Lower bound(Lb): 3.698

Upper bound(Ub): 4.182

Error bound: (Ub - Lb)/2 = (4.182-3.698)/2 = 0.242

I hope it helps!

6 0

3 years ago

You have P = 472 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side along the r

Ray Of Light [21]

The width would be 236 and the lengths would be 118

Use the equations 2L+W=472 and W*L=MAX
Change the first equation to W=472-2L and plug this into the other equation
(472-2L)(L)=MAX
472L-2L^2=M (take derivative)
472-4L=0 (set to 0 to find the max value)
4L=472
L=118
Plug into original to get W=236

Hope this helps!

4 0

3 years ago

algerba write the missing numbers that make these number sentences true . 40+50=60 + ____. __= 89+10

san4es73 [151]

Answer:

it is 9 bc it adds up to 99

Step-by-step explanation:

5 0

3 years ago

11. What is the name of Angle 7 and Angle 8?

Sever21 [200]

Answer:

to answer this you need picture

8 0

3 years ago