Simplify 26/5(5/13b+10/26) .

Please help with geometry thx

anastassius [24]

Answer:

Correct answer: Fourth answer As = 73.06 m²

Step-by-step explanation:

Given:

Radius of circle R = 16 m

Angle of circular section θ = π/2

The area of a segment is obtained by subtracting from the area of the circular section the area of an right-angled right triangle.

We calculate the circular section area using the formula:

Acs = R²· θ / 2

We calculate the area of an right-angled right triangle using the formula:

Art = R² / 2

The area of a segment is:

As = Acs - Art = R²· θ / 2 - R² / 2 = R² / 2 ( θ - 1)

As = 16² / 2 · ( π/2 - 1) = 256 / 2 · ( 1.570796 - 1) = 128 · 0.570796 = 73.06 m²

As = 73.06 m²

God is with you!!!

7 0

2 years ago

$4.50 per 1 Kilogram How many kilograms can you buy with $10

Dafna1 [17]

Answer:

2.23kg

Step-by-step explanation:

If you can get 1 kg for $4.50. You can perform a ratio to find out how much you get for $10.

1/4.50=x/10

.2222222=x/10

multiply the 10 on both sides

x=2.23 kg for $10

8 0

2 years ago

5 brothers want to share the cost of a birthday gift for their mom. The youngest brother is too small to get an allowance so the

liberstina [14]

Answer:

Total cost=$73.60

Step-by-step explanation:

Arithmetics To Solve Simple Problems

Sometimes the use of the most basic operations can be handy to solve problems of a variety of complexities without the use of equations or algebra. We'll approach to the solution of this question by pure logic and basic operations.

If the gift was originally meant to be paid for all 5 brothers, each one would have paid one-fifth of the cost. But since the younger brother won't be paying anything, the cost will be divided among the other four brothers, each one of which will pay now one-fourth of the cost. But this new division is $3.68 more than the previous one. If we take the difference between both fractions, we get

$\displaystyle \frac{1}{4}-\frac{1}{5}=\frac{1}{20}$

That fraction is the portion of the money they are paying in excess, so the total cost should be twenty times that excess, i.e.

Total cost= 20*3.68=$73.60

Let's check. Each brother should have paid $73.60/5=$14,72. But the four brothers really paid $73.6/4=$18.40. The difference is cost is $18.40-$14,72=$3.68 as required

5 0

2 years ago

Find the slope of the line through the given points (4,-2),(-1,8)

nikklg [1K]

Answer:

$\displaystyle m=-2$