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Gala2k [10]
3 years ago
14

The water pipe has a radius of 5 cm and a height of 7 cm. What volume of

Mathematics
2 answers:
scoray [572]3 years ago
8 0

Answer:

549.5 cm

Step-by-step explanation:

wolverine [178]3 years ago
5 0

Answer:

pipe is cylinder

volume= pi r²h

radius= 5cm

height= 7cm

volume = 22/7 × (5×5) × 7

simplifying the equation

= 22 × 25

= 550cm³

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A central angle in a circle with a radius of 3cm intercepts an arc with a length of 6cm. What is the radian measure of the centr
Nesterboy [21]
The correct answer for the question that is being presented above is this one: 

Radian Measure can be acquired by using the formula
Radian Measure = arc length / radius
Radian Measure = 6 cm / 3 cm
Radian Measure = 2 rad.
4 0
3 years ago
Finding x :8x + 10 - 5x = 15.​
Misha Larkins [42]

Answer:

Here you go! 8x+10-5x!

Just kidding. here you go. x=1.66

Step-by-step explanation:

you can simplifiy the x´s by making it 3x by subtracting. You can also subract 10 from both sides. That leaves you with 3x=5.

x=1.66

7 0
4 years ago
Read 2 more answers
What are the solutions of the equation 6x2 + x-1=0 ?
Aleksandr [31]

Answer:

<u>Options B and D</u>

Step-by-step explanation:

6x² + x - 1 = 0

6x² + 3x - 2x - 1 = 0

3x(2x + 1) - 1(2x + 1) = 0

(3x - 1)(2x + 1)

x = 1/3 and -1/2

<u>Options B and D</u>

6 0
2 years ago
Can someone please help me answer this? 2x2 + x -21​
Readme [11.4K]

Answer:

(x - 3)(2x + 7)

Step-by-step explanation:

Assuming you require the expression factorised.

Given

2x² + x - 21

Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term

product = 2 × - 21 = - 42 and sum = + 1

The factors are - 6 and + 7

Use these factors to split the x- term

2x² - 6x + 7x - 21 ( factor the first/second and third/fourth terms )

= 2x( x - 3) + 7(x - 3) ← factor out (x - 3) from each term

= (x - 3)(2x + 7) ← in factored form

6 0
3 years ago
What is the value of the expression
Levart [38]

Answer:

\boxed{\sf -2}

Step-by-step explanation:

\sf Evaluate \:  -  {x}^{2}  - 4x - 6 \:  where \:  x =  - 2: \\  \sf \implies  -  {x}^{2}  - 4x - 6 =  -  {( - 2)}^{2}  - 4( - 2) - 6 \\  \\  \sf  {( - 2)}^{2}  = 4 :  \\  \sf \implies  -  \boxed{ \sf 4} - 4( - 2) - 6 \\  \\  \sf - 4( - 2) = 8 :  \\  \sf \implies  - 4 +  \boxed{ \sf 8} - 6 \\  \\  \sf  - 4 + 8 - 6 = 8 - (4 + 6) :  \\  \sf \implies 8 - (4 + 6) \\  \\  \sf 4 + 6 = 10 :  \\  \sf \implies 8 -  \boxed{ \sf 10} \\   \\  \sf \implies -  2

5 0
4 years ago
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