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sveticcg [70]
1 year ago
14

Solve: 2a + 6 = 12 a =

Mathematics
1 answer:
Alex Ar [27]1 year ago
5 0

Answer:

8

Step-by-step explanation:

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as the earth revolves around the sun it travels at a speed of 18 miles per second. covert this speed to miles per minute at this
morpeh [17]
If we have the speed of 18 miles per second, 18miles/s
to find out what is the speed in 1 minute we will need to multiply 18 by 60, as there are 60 seconds in 1 minute
18 miles..............................1 second
?miles..................................60 seconds(1min)
18*60=1080 miles
we have 1080 miles/minute
in 2 minutes we have 1080*2=2160 miles
hope it helps
6 0
3 years ago
The number of students enrolled at a college is 12,000 and grows 6​% each year. Complete parts ​(a) through ​(e).
ziro4ka [17]

Answer:

the question is not complete. but with the information you gave 6% of 12000 is 720, the number of students increase by 720 each year

4 0
3 years ago
Which equation applies the associative property of multiplication?
tamaranim1 [39]
<span>associative property of multiplication
answer
</span><span>A.−125 ⋅ (712 ⋅ 19) ⋅ 85 = (−125 ⋅ 712) ⋅ (19 ⋅ 85) ​</span>
5 0
3 years ago
Read 2 more answers
AB = 3 + x
strojnjashka [21]

Answer:

Option A) 4, 2

Step-by-step explanation:

We are given that quadrilateral ABCD is a  parallelogram with sides:

AB = 3 + x\\DC = 4x\\AD = y + 1\\BC = 2y

Since the opposite sides of a parallelogram are equal, we can write:

AB = DC\\AD=BC

Equating the sides we get,

\Rightarrow 3+x = 4x\\4x-x = 3\\3x = 3\\x = 1\\\Rightarrow y + 1 = 2y\\y = 1

Putting the values of x and y, we get:

AB = 3 + x =4\\DC = 4x =4\\AD = y + 1=2\\BC = 2y=2

Thus, the lengths of the opposite side pairs is 4,2.

4 0
3 years ago
A random sample is taken and the sample size is 25. the sample is normally distributed, the sample mean is 80, and the standard
torisob [31]

The 90% confidence interval for the population mean is 78.1905<x<81.8095

<h3>Confidence interval</h3>

The formula for calculating the confidence interval is expressed as:

CI = x ± z*s/√n

Given the following parameters

mean "x" = 80

z = 1.645

s = 5.5

n = 25

Substitute

CI = 80 ± 1.645*5.5/√25

CI = 80 ± 1.8095

CI = {78.1905, 81.8095}

Hence the 90% confidence interval for the population mean is 78.1905<x<81.8095

Learn more on confidence interval here: brainly.com/question/2141785

#SPJ1

7 0
2 years ago
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