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nekit [7.7K]
4 years ago
10

Anybody got some help??

Mathematics
1 answer:
Gennadij [26K]4 years ago
6 0
Area of the whole sector = 1/2 r^2 theta    ( theta in radians)
  = 1/2 * 18.6^2  * 123 * pi/180  =  371.35 m^2

Area of the triangle =  1/2 r^2 sin theta =  1/2 * 18.6^2 * sin 123 =  145.07 m^2

Area of shaded segment = 371.35 - 145.07 =  229.3 m^2 to nearest tenth
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Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth 5y^2-8y=2
solmaris [256]

Answer:


Step-by-step explanation:

First, rewrite the equation (all terms should be in the left side):

5y^2-8y-2=0.

In this equation,

  • a=5;
  • b=-8;
  • c=-2.

Then the discriminant

D=b^2 -4ac=(-8)^2-4\cdot 5\cdot (-2)=64+40=104.

Then

y_1=\dfrac{-b+\sqrt{D}}{2a}=\dfrac{-(-8)+\sqrt{104}}{2\cdot 5}=\dfrac{8+2\sqrt{26}}{10}=\dfrac{4+\sqrt{26}}{5},\\ \\y_2=\dfrac{-b-\sqrt{D}}{2a}=\dfrac{-(-8)-\sqrt{104}}{2\cdot 5}=\dfrac{8-2\sqrt{26}}{10}=\dfrac{4-\sqrt{26}}{5}.

6 0
3 years ago
If today is Saturday, what day will it be 70 days from now?
Lerok [7]

Answer:

If today is Saturday, then after 70 days, we will be on a Saturday again.

Step-by-step explanation:

Basically, 70 days = 10 weeks

Which means: 1 week = 7 days

We also know that if we are on a Saturday, then after a week, we will be on a Saturday again. Therefore, if we are on a Saturday, after 10 weeks or 70 days, we will be on a Saturday again.

Hoped this helped.

8 0
3 years ago
HELLPPPP MEEEEEE please!!!!!
steposvetlana [31]

Answer: Branliest plz

ok so for the numbers from 0-150 is one bar, 150-300 is another bar, 300-450 is another bar, and finally 450-600 is the last bar. You put the numbers that go in each different bar i n their seperate bar.

Step-by-step explanation:

6 0
3 years ago
Find the simple interest and amount when principal = Rs. 6000, rate = 6% per annum and time = 4 years
Alinara [238K]

Given:

Principal = Rs. 6000

Rate of simple interest = 6% per annum.

Time = 4 years

To find:

The simple interest and amount.

Solution:

Formula for simple interest:

I=\dfrac{P\times r\times t}{100}

Where, P is principal, r is the rate of interest and t is the number of years.

Putting P=6000, r=6 and t=4, we get

I=\dfrac{6000\times 6\times 4}{100}

I=60\times 6\times 4

I=1440

Now,

Amount=Principal+Interest

Amount=6000+1440

Amount=7440

Therefore, the simple interest is Rs. 7440 and the amount is Rs 7440.

7 0
3 years ago
Which one is irrational π or 3.14
BaLLatris [955]

An irrational number is one that cannot be shown as ratio of two integers, an 3.14=314/100 so that means pi is irrational. Another thing to note is that pi is transcendental which means it is not the root of any algebraic equation.

4 0
3 years ago
Read 2 more answers
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