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qaws [65]
3 years ago
12

Evaluate 4/5 (6*1/2)

Mathematics
1 answer:
inysia [295]3 years ago
8 0
4/5 (6*1/2)
4/5 (13/2)
(4*13) / (5*2)
52 / 10
5.2
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8. The logo for a company is a regular hexagon inscribed inside a circle. The logo will
fgiga [73]

Divide the hexagon into 6 equal streak triangles which would have side length equal to the radius of the circle.


the area of an equal lateral triangle = sqrt(3)/4 x radius^2


the area of the hexagon would be 6 x sqrt(3)/4 x radius^2


Area = 6 x sqrt(3)/4 x 8^2 = 166.2768 square feet


rounded to the nearest whole foot = 166 square feet.

5 0
3 years ago
5 more than the product of 17 and a number is 107. What is the number?
ikadub [295]

Answer:

6

Step-by-step explanation:

subtract 5 from 107 is 102

102 divided by 17 is 6

8 0
3 years ago
In geometry, Heron's formula (sometimes called Hero's formula), named after Hero of Alexandria, gives the area of a triangle by
uysha [10]

Answer:

C) 6.495\: ft^2

Step-by-step explanation:

a = 7 ft, b = 3 ft, c = 5 ft (Given)

Therefore, a + b + c = 7 + 3 + 5 = 15 ft

Let's calculate semi Perimeter of the triangle which is given by s

s =\frac{a+b+c}{2}=\frac{15}{2} = 7.5 \: ft

Now, by Heron's formula, area of triangle ABC is given as:

A(\triangle ABC) =\sqrt{s(s-a) (s-b)(s-c)}

\therefore A(\triangle ABC) =\sqrt{7.5(7.5-7) (7.5-3)(7.5-5)}

\therefore A(\triangle ABC) =\sqrt{7.5(0.5) (4.5)(2.5)}

\therefore A(\triangle ABC) =\sqrt{42.1875}

\therefore A(\triangle ABC) =6.49519053

\therefore A(\triangle ABC) =6.495\: ft^2

8 0
3 years ago
Neeeddddd HELP LOOKONG FOR ANSWERS!!
kaheart [24]

Answer:

a.) 13 students

b.) 53 members

Step-by-step explanation:

a.) In the given equation of y=4x+13, "x" represents how many years have gone by since the club had started. The number "13" in this equation represents the y-intercept, or the value of "y" when x = 0. Therefore, when "x" is 0 years, there were 13 students in the clubs, meaning that the original group that started the club contained 13 students.

b.) Since the question asks how many members that the club will have after their tenth year and you already know that "x" in the equation y=4x+13 represents the number of years since the club started, all you have to do is plug 10 in for "x" in the equation; so, the equation will now look like this: y=4(10)+13. Keeping PEMDAS in mind, you first multiply 4 and 10 to get 40, and then you add 13 to get an answer of 53 members after year 10.

7 0
3 years ago
If 3 inches equals 14 feet what is 7 feet in inches
daser333 [38]

Answer:

1.5 inches

Step-by-step explanation:

First you need to divide 3 by 2 because 7 is half of 14 and you would get 1.5 so your answer is 1.5 inches

8 0
3 years ago
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