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Darya [45]
3 years ago
7

If the sum of the measures of ∠1 and ∠2 is 180°, what is the sum of the measures of ∠3 and ∠4?

Mathematics
1 answer:
m_a_m_a [10]3 years ago
8 0
In any 4-sided shape, the angles add to 360. if angles 1 & 2 are 180, 3 & 4 are also 180. the answer is D
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If Jeffrey invested $2,000 (principal) for 5 years at 5% interest rate compounded annually how much Interest would he earn over
garik1379 [7]

Answer:

Total = principal * (1+ rate/100)^ years

Total = 2,000 * 1.05^5

Total = 2,000 * 1.2762815625

Total = 2,552.36

Source: http://www.1728.org/compint2.htm

Step-by-step explanation:

3 0
3 years ago
Find the value of (3 + 2)! – (4 – 2)!.<br><br> a. 3<br> b. 10<br> c. 118<br> d. 120
taurus [48]

Answer:

A. 3

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
logs are stacked in a pile on the bottom row and 15 on the top row . there are 10 rows in all with each row having one more log
WITCHER [35]
Since there is a common difference of one, this is an arithmetic sequence of the form a(n)=a+d(n-1) which in this case is:

a(n)=15+1(n-1)

All arithmetic sequences have a sum which is equal to the average of the first and last terms time the number of terms, mathematically:

s(n)=(2an+dn^2-dn)/2  (that is just the result of ((a+a+d(n-1))(n/2)) )

Since a=15 and d=1 this becomes:

s(n)=(30n+n^2-n)/2

s(n)=(n^2+29n)/2 so

s(10)=(100+290)/2

s(10)=195 logs
8 0
4 years ago
Read 2 more answers
3 boxes of baseball cards weigh 90 pounds. How many pounds do 4 boxes weigh
Anvisha [2.4K]
120 pounds
hope that helps
4 0
3 years ago
Read 2 more answers
In the triangle shown below TB, EC and are MEDIANS; TB = 6x - 15 and DB = 5 5. Solve for x
nydimaria [60]

Answer:

I am not sure on this one, sorry :(

Step-by-step explanation:

6 0
3 years ago
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