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icang [17]
3 years ago
9

Help on 36 and 39 have to factor each expression

Mathematics
1 answer:
aleksklad [387]3 years ago
4 0
36)      <span>5(2 + 7k)(-2 + 7k)

39)      </span><span>8(5 + b)(5 + b)</span>
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(x+3)^5=32<br> Please solve for x
nadezda [96]

Answer:

x = - 1

Step-by-step explanation:

(x + 3)^{5}  = 32 \\ (x + 3)^{5}  =  {2}^{5}  \\ x + 3 = 2 \\ x = 2 - 3 \\  \huge \purple{ \boxed{x =  - 1}}

4 0
3 years ago
A cone is cut into a cube as shown below. If the cone has a diameter of
Butoxors [25]

Answer:

184.43in².

Step-by-step explanation:

Total surface area of the solid = volume of the cube - the volume of the cone

For the CUBE;

Volume of the cube = L³ where L is the length of one side of the cube.

Since a cone of diameter of 6in is cut into a cube, then the length of the cube will be 6in.

Volume of the cube = 6³ = 216in³

For the CONE;

Volume of the cone = 1/3 πr²h

r is the radius of the cone = diameter/2

r = 6/2 = 3in

slant height l = 4.5in

the height h of the cone will be derived using the Pythagoras theorem.

l² = h²+r²

4.5² = h²+3²

h² = 4.5²-3²

h² = 11.25

h=√11.25

h = 3.35in

Volume of the cone = 1/3 × π × 3²× 3.35

= 31.57in³

Total surface area of the solid = 216in³-31.57in³

= 184.43in²

3 0
3 years ago
What is the equation of the line that passes through the point (−8,3) and has a slope of -1/4?
tensa zangetsu [6.8K]

Answer:

y=-1/4x+1

Step-by-step explanation:

so here are my steps after plugging in the numbers:

y-3=-1/4(x+8)

y-3=-1/4x-2

y=-1/4x+1

6 0
3 years ago
What will be the ratio of circles to triangles in a drawing showing 4 circles and 7 triangles?
Neporo4naja [7]
4:7 or 4/7 or 4 to 7
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4 years ago
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I'm sooo bad at math plzzz help me....
Grace [21]
Its basically saying 8×9a is equal to 9×-2a then you answer it the answer is 72=-18
8 0
3 years ago
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