Answer:
As this is triangular height and floor length we multiply and divide by 2 (representing halving the square)
= 3.5 x 6= 19 19/2 = 9.5ft
To thereafter measure the angle we can see 9.5/3.5 =2.711
so we have 90, 27 and 63 degree.
As this is decimal we round up to 30 degree. and round down to 60 degree.
Step-by-step explanation:
Answer:
1
Step-by-step explanation:
(1+sinx)/cosx
(1+sin0)/cos0
(1+0)/1
1/1
1
:. Lim x->0 =1
111,022 rounds to 111,000
area = 25.5 cm²
Step-by-step explanation:
i have shown in the image you have to rotate it to see how i worked the area out
i am very sorry i cant work the perimeter out since i have no idea what the length of the two sides of the triangle are . if you need help on understanding how i worked out the area please let me know .
hopefully i was able to help you in half of the question i am sorry for not helping on the perimeter :)
2.
-7x + 8x + 1 = x - 7
3.
4. d dimes and q quarters
d + q = 61
d + 3 = q
There's one more equation -- the problem is overconstrained. Let's solve what we have so far. Substituting,
d + d + 3 = 61
2d = 58
d = 29
q = d + 3 = 32
The last equation in cents is
1090 = 10d + 25q
Let's see if our solution still checks:
10(29) + 25(32) = 290 + 800 = 1090
That checks.
Answer: 29 dimes, 32 quarters
5.
1980 = (n-2)180
n-2 = 1980/180 = 11
n = 13
Answer: 13