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Marrrta [24]
3 years ago
9

Please help. Don't know what to do. (Geometry)

Mathematics
1 answer:
arlik [135]3 years ago
5 0
(360/10)/2 = 18°

Cos(18)=a/r=a/5 ---> a=4.8

Tan(18)=o/a=o/4,8 ---> o=1.6

Area = 1/2 * 4.8 * 1.6 * 20 = 76.8 

The right answer is A, i have just rounded up, so i didn't get is precise. 
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Which ordered pair is a solution of the equation y+5=2(x+1)
sdas [7]
Anwser: (-1,-5)

Why:
All you have to do is plug in the coordinates into the equation...

(5,10):
10+5=2(5+1)
15=10+2
15=12
This is false so this ordered pair isn’t a solution

(-1,-5):
-5+5=2(-1+1)
0=-2+2
0=0
This statement is true therefore this ordered pair is a solution and is the only solution.
8 0
3 years ago
Simplify.
Ket [755]
First off, nicely done on the exponents. You'd be surprised on how bad some look ,:D

a)
(3xy^{3})(2x^{2}y)\\ (3*2)(x*x^{2})(y^{3}*y)\\\\ 6x^{3}y^{4}

b)
2y(2y+3y^{2})-y^{2}(3-y)\\ (4y^{2}+6y^{3}) + (-3y^{2}+y^{3})\\ (6y^{3}+y^{3})+(4y^{2}-3y^{2})\\ 7y^{3}+y^{2}\\\\ y^{2}(7y+1)
8 0
4 years ago
PLEEEAAAASE HELLP!!!Tina is making a cylindrical sandbox that has a radius of 2 feet. She bought 18.84 cubic feet of sand for th
madam [21]

Answer:

Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
The total amount paid on a 35 year loan was $98,000. If the interest rate was 4.1% and compounded monthly, what was the principa
Levart [38]

Answer:

The principal amount was $23,393.45

Step-by-step explanation:

The total amount paid on a 35 year loan was $98,000 at the rate of interest 4.1%

We will calculate Principal amount by this formula

A=P(1+\frac{r}{n})^{nt}

Where A = amount (98,000)

           P = Principal amount (P)

           r = rate of interest 4.1% (0.041)

           n = number of compounding interest monthly (12)

           t = time (35 years)

98,000=P(1+\frac{0.041}{12})^{(12)(35)}

98,000=P(1+0.003416)^{(420)}

98,000=P(1.003416)^{(420)}

98,000 = P(4.189386)

= 4.189386P = 98,000

P = \frac{98000}{4.189386}

P = 23,392.4494 ≈ $23,392.45

The principal amount was $23,393.45

5 0
4 years ago
Read 2 more answers
Please help me <br> I will give brainlist please explain
Airida [17]
So you have to graph that on to the chart i think
3 0
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