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2 years ago

Which of the following represents the correct expansion of (x + 2)^5?

1 answer:

8 0

(x + 2)^5 = (x + 2) (x + 2) (x + 2)(x + 2)(x + 2) =
(x2 + 4x + 4)(x2+4x+4)(x+2) = ( x4 + 4x3 + 4x2 + 4x3 + 16x2 + 16x + 4x2 +16x + 16)(x+2) = ( x4 + 8x3 + 24x2 + 32x + 16)(x+2) = ( x5 + 8x4 + 24x3 + 32x2 + 16x + 2x4 + 16x3 + 48x2 + 64x + 32) =
x5 + 10x4 + 40x3 + 80x2 + 80x + 32
Answer D

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The right triangle on the right is a scaled copy of the right triangle on the left. Identify

hodyreva [135]

Answer:

scale factor : 3.5

Step-by-step explanation:

56/16=3.5

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1 year ago

I need help with 12-14. One answer will get thanks. The highest amount of answers will get brainliest.

boyakko [2]

12. Make equation and plug in

13. Proportion

14. Finding a constant rate, and then manipulate

12. Where x is miles driven, and y is answer, and z is days
19.95z+0.15x=y
Plug in two values
19.95 x 2 + 0.15 x 250 = y
39.93+37.5 = y
y=77.43

13. 5:2 as 175:x
5/2 = 175/x
x = 70
70+175=245

14. 260:5 = x:1
260/5=x/1
x = 52

52:1 = y:9
52/1 = y/9
y = 468

I hope you understand the process.

7 0

2 years ago

Two congruent 30-60-90 triangles are placed,as shown,so that they overlap partly and their hypotenuses coincide. If the hypotenu

Ede4ka [16]

Answer: The area common to both triangle is 31.77 sq. cm.

Step-by-step explanation:

Since we have given that

30-60-90 triangles are placed.

So, the ratio of sides would be

$1:\sqrt{3}:2$

Since Hypotenuse = 12 cm

So, it becomes,

$2x=12\\\\x=\dfrac{12}{2}=6$

So, Base would be

$x=6\ cm$

and Perpendicular would be

$\sqrt{3}x=6\sqrt{3}$

So, Area common to the both triangles would be

$\dfrac{1}{2}\times base\times height\\\\=\dfrac{1}{2}\times 6\times 6\sqrt{3}\\\\=18\sqrt{3}\\\\=31.177$

Hence, the area common to both triangle is 31.77 sq. cm.

4 0

3 years ago

You want to fit all of your lip glosses in _3

Sedaia [141]

Answer:

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2 years ago

-2(x+6)+3= -11x+4(x+4)

Katarina [22]

Distribute
-2(x+6)+3
-2x-12+3
-2x-12+3=-11x+4(x+4)
Distribute
4(x+4)
4x+16
-2x-12+3=-11x+4x+16
Combine Numbers && Variables
-2x-9=-7x+16
Add The 7 Over To The -2x
5x-9=16
Add 9 Over To 16
5x=25
x=5
So 5 Is Your Answer

~Hope This Helps :)
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2 years ago