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ohaa [14]
3 years ago
6

Triunghiul isoscel ABC are latura [BC] situata intr un plan alfa si se proietcteaza pe plan dupa triunghiul dreptunghic DBC. Sti

inda ca m(BDC)=90°, iar BD=16 cm si CD=12 cm, aflati
a) cosinusul unghiului ABC





b) lungimea laturii [BC] a triunghiului ABC
Mathematics
1 answer:
Zarrin [17]3 years ago
4 0
Maybe try b
I think it b
You might be interested in
3 + 3(k + 3) = 6(k - 2) +9​
ANTONII [103]

Step-by-step explanation:

3 + 3(k + 3) = 6(k - 2) + 9

3 + 3k + 9 = 6k - 12 + 9

12 + 12 - 9 = 6k - 3k

15 = 3k

k = 15/3

k = 5

7 0
3 years ago
In what time will Rs. 5600 amount to Rs. 6720 at 8% per annum?​
Leona [35]

Answer: 2 years

Step-by-step explanation:

If Interest= Principal x rate x time/100; then time is (100 × Interest)/(Principal × Rate)

From the question, old Principal is 5600, new principal =6720, the difference is the interest accrued.

Interest = 6720 - 5600 = Rs 1120

Rate = 8% = 8 ÷ 100 = 0.08

Time = x

Then, slot the values into the formula

Time= 100 x 1120 / 6720 x 8

= 112000/53760

=2.08

Time= 2years

I hope this helps

8 0
3 years ago
The price of an item has been reduced by 60% the original price was $20 what is the price of the item now
tester [92]

Answer:

6

Step-by-step explanation:

20 times 0.3 is 6

3 0
3 years ago
Read 2 more answers
Please Help Me ASAP!!!
Arturiano [62]

Everything you need is in the picture attached.

4 0
3 years ago
20 = -d + 6
Sphinxa [80]

ok so rearrange things so that it says 6-d=20, then subtract six from each side to get -d=20-6, then subtract 6 from 20 to get -d=-14, then multiply both sides by -1 to get rid of the negative sign in front of the d since a variable cannot be a negative thus making your answer -14 or letter D. :) ❤❤❤❤

hope this helps

3 0
3 years ago
Read 2 more answers
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