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lubasha [3.4K]
3 years ago
10

(2n-9)-5(2.4n+4) does anyone know the answer to this?

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
4 0

Answer:  -0.4n-13

hope it helped don't forget to drop a heart

Step-by-step explanation:

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Does anybody know the answer to this question Im having lots of problems
Dvinal [7]
<h3>Answer:     3^9</h3>

This is the same as writing 3^9

====================================================

How to get that answer:

The lowest height is 3^8, and the highest point is 3 times that value.

We can think of that second "3" as really 3^1. This is because x^1 = x for any real number.

Multiply 3^8 and 3^1 using the rule that a^b*a^c = a^(b+c). We add the exponents together.

Therefore, 3^8*3^1 = 3^(8+1) = 3^9

Side notes:

  • 3^8 = 6,561
  • 3^9 = 19,683
7 0
3 years ago
Read 2 more answers
Determine the radius of a circle if a 24-inch chord is 9 inches from the center.
bixtya [17]
Hi! :)

The radius of a circle is the length from the perimeter of the circle to the center of the circle. 

If  24 inches is still 9 inches from the center, you just have to add 24 and 9 to get the radius. 

24+9= 33

Your final answer should be that the radius is 33 inches.

Hope this helps!
3 0
3 years ago
Jamilla has a piece of ribbon that is 48.5 centimeters long. For her scrapbook, she cuts it into two pieces so that one piece is
ale4655 [162]
Shorter <span>piece = x
longer </span><span>piece = 4x

x + 4x = 48.5
5x = 48.5
x = 48.5/5
x = 9.7 cm   </span>←  shorter piece

longer piece = 4x = 4 * 9.7 = 38.8 cm
8 0
3 years ago
What is the area of the figure below?
-BARSIC- [3]

Answer:

54.8 = total area+

Step-by-step explanation:

Start with the widest part near the middle. Three inches is taken away from 7 inches to give 4 inches.

4 inches must be divided by 2 since the triangles so formed are congruent and there are 4 of them.

Use the Pythagorean theorem to get the height of the triangles. Solve the height for just one of them.

height = ??

Base = 2

hypotenuse = 5

height^2 + 2^2 = 5^2

height^2 + 4 = 25

height^2 + 4 - 4 = 25 - 4

height^2 = 21

height = sqrt(21)

height = 4.58

<em>Area of 4 Trangles</em>

Area of the triangles = 4 * (1/2 * 2 * 4.58)

Area of the triangles = 18.32

<em>Area of the Middle Rectangle</em>

Area = l * w

length = 4.58 * 2  where did that 2 come from?

width = 3

Area = 3 * 2 * 4.58

Area = 27.48

<em>Area of the two End Squares</em>

The end squares measure 3 by 3

Area square = s*s

The area = 3*3 = 9

<em>Total Area</em>

Area = 9 + 27.48 + 18.32

Area = 54.8 units.

6 0
3 years ago
Four accounting majors, two economics majors, and three marketing majors have interviewed for five different positions with a la
Slav-nsk [51]

Answer:

Option c

Step-by-step explanation:

From the question we are told that:

Four accounting majors N_a=4

Two economics majors  N_e=2

Three marketing majors  N_m=3

Total Applicants N_T=9

Generally the equation for Different ways that five of these could be hired is mathematically given by

X_5=^9P_5

X_5=\frac{9!}{(9-5)!}

X_5=15120

Generally the equation for Different ways that Three of these could be hired is mathematically given by

X_3=^9P_3

X_3=\frac{9!}{(9-5\3)!}

X_3=504 ways

Option c

5 0
3 years ago
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