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MariettaO [177]
2 years ago
13

Simplify the following expression: 9x-12+4x+4+10x

Mathematics
2 answers:
mel-nik [20]2 years ago
6 0

Answer:

23x-8

Step-by-step explanation:

1. First add the numbers

2. then C.L.K Combine Like Terms

9x-8+4x+10x

23x-8

WITCHER [35]2 years ago
4 0

Answer:

15x-8

Step-by-step explanation:

9x-12+4x+4+10x

9x+4x+10x  -12+4

15x-8

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The figure shows a cylinder of diameter 12cm and height = 15cm. A hole in the shape of cone is bored into one of its end. If the
Lisa [10]

Answer:

\bold{495\pi} \approx \bold{1555.088 cm^3}

Step-by-step explanation:

There was no figure but the question is clear

Volume of a cylinder is given by the formula \bold{\pi r^2h}\\

where r is radius of base of cylinder, h is the height

Volume of a cone is given by \bold{\frac{1}{3} \pi r^2 h}

where r is the radius of base of cone, h is the height

The radius of the cylinder = \frac{1}{2}(diameter) = \frac{1}{2}(12) = 6cm

Height of cylinder = 15cm

Volume of cylinder V_{cyl} = \pi (6)^2  15 = \pi (36)15 = \bold{540\pi}

Radius of cone = \frac{1}{2} (radius of cylinder) = \frac{1}{2}(6) = 3 cm

Height of cone same as height of cylinder = 15cm

Volume of cone, V_{cone} = \frac{1}{3}\pi r^2 h = \frac{1}{3}\pi (3)^2 15 =  \frac{1}{3}(9)15\pi = \bold{45\pi}\\


Difference is the volume of the remaining solid

V_{cyl} - V_{cone} = 540\pi - 45\pi = \bold{495\pi} \approx \bold{1555.088 cm^3}



5 0
1 year ago
Help anyone can help me do this question,I will mark brainlest.​
Ad libitum [116K]

Answer:

David walks 132m.

Using theorem of pythagoras and the dimensions of the kite to calculate. Refer to the picture.

Hope it helps.

3 0
2 years ago
Justify each step. <br> 3•(10•12)=3•(12•10)<br> =(3•12)•10<br> =36•10<br> =360
ziro4ka [17]

Answer:

3•(10•12)=3•(12•10) = 360 = True

Step-by-step explanation:

left-hand side Simplify the following:

3×10×12

10×12 = 120:

3×120

3×120 = 360:

Answer: 360

______________________

Right-hand side:

Simplify the following:

3×12×10

Hint: | Multiply 12 and 10 together.

12×10 = 120:

3×120

Hint: | Multiply 3 and 120 together.

3×120 = 360:

Answer: 360

5 0
3 years ago
2qt= ?ml round to nearest hundredths
bezimeni [28]

Answer:

1982.71 mL

Step-by-step explanation:

1 qt = 946.353 mL

2 qt = 1982.71 mL

8 0
3 years ago
In ABC AD and BE intersect each other at point q according to a theorem on medians q divides AD in the ratio 2:1 what are the co
victus00 [196]
C. (3.33, -3) would be the answer
8 0
3 years ago
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