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Umnica [9.8K]
3 years ago
8

What is the value of the expression when a = 5, b = 4 , and c = 6?⁢ 4a2b−c .

Mathematics
2 answers:
Ilia_Sergeevich [38]3 years ago
6 0
That problem is not complete.

vfiekz [6]3 years ago
3 0

Answer:

The value of expression is 18.

Step-by-step explanation:

The following information is missing in the question. The correct expression is 4a+b - c

We are given the following expression:

4a+b - c

We have to find the value of this expression when a = 5, b = 4 and c = 6.

Putting these values we get,

4a+b - c\\=4(5)+4-6\\=20 + 4-6\\=18

The value of expression is 18.

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A circle with the diameter of 40 inches. what is the area?
Vsevolod [243]

Answer:

<em>A= 1256</em>

Step-by-step explanation:

<u>The formula for area of a circle is </u>A=\pi r^{2}

1. Diameter is DOUBLE of radius, so the diameter must be divided by 2. <em>40/2 = 20. </em>

<em>2. </em>Then, plug in the values into the area formula. <em>A= 3.14</em>(20^{2})

3. Solve.<em> A= 1256</em>. (Remember that 20 squared is <em>20x20</em>)

7 0
3 years ago
A train travels at 80 miles per hour. What equation that compares the time (t) with the distance (d)?
garri49 [273]

A

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Solve the system by graphing <br> y = -3/4x + 6 <br> y = 2x - 5
jonny [76]

Answer:

X= 4. Y = 3.

Step-by-step explanation:

If you have a graphing calculator, put the first equation into Y1. And second equation into Y2. Then, find the intersection of the two equations. That's how you find your answer.

4 0
3 years ago
PLEASE HELP ME AND PLEASE BE RIGHT I ALREADY HAVE AN 80 :(
ELEN [110]

Answer:

D

Step-by-step explanation:

When calculating the area of a parallelogram, use the formula A = l*h where length is the longest length and h is the perpendicular height of the shape. For this parallelogram, substitute l = 14 and h = 8.

A = l*w = 14*8 = 112

6 0
3 years ago
Help me please I need this done quick
Anna11 [10]
Answer:
1058.4 in^2

Step-by-step explanation:
Find the surface areas of the rectangular prism and the triangular prisms separately.
Triangular: S = (1/2)lP+B, where l is slant height, P perimeter, and B base area.
14(4)= 56 perimeter of base
13 slant height
B = 14x14 = 196
put together:
S = (1/2)(13 x 56) + 196
S = 560 in^2

Now the rectangular prism
S = 2lw + 2lh + 2wh, where l is length, h height, w width. (delete the first 2lw since they share one side/they're combined shapes.
S = 2(14x8.9) + 2(14x8.9)
S = 498.4 in^2

Add them together: 498.4 + 560 = 1058.4 in^2
7 0
2 years ago
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