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Marrrta [24]
3 years ago
10

A construction worker fills a mold with concrete. This solid figure represents the mold.

Mathematics
1 answer:
nadezda [96]3 years ago
4 0

Answer:

volume = 338 x 20 = 6760 cm^3

Step-by-step explanation:

large rectangular top area = 14 x 22 = 308 cm^2

small rectangular top area = 6x5 = 30 cm^2

total top area = 308 + 30 = 338 cm^2

volume = 338 x 20 = 6760 cm^3

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josh has now hiked a total of 17 km and is 2 km short of being 1/2 of the way done with his hike. write an equation to determine
Zepler [3.9K]

17+2(2)=h would be the equation

6 0
3 years ago
Write the 5th term in the expansion of (5x-y/2)^7
Nezavi [6.7K]

Answer:

65625/4(x^5)(y²)

Step-by-step explanation:

Using binomial expansion

Formula: (n k) (a^k)(b ^(n-k))

Where (n k) represents n combination of k (nCk)

From the question k = 5 (i.e. 5th term)

n = 7 (power of expression)

a = 5x

b = -y/2

....................

Solving nCk

n = 7

k = 5

nCk = 7C5

= 7!/(5!2!) ------ Expand Expression

=7 * 6 * 5! /(5! * 2*1)

= 7*6/2

= 21 ------

.........................

Solving (a^k) (b^(n-k))

a = 5x

b = -y/2

k = 5

n = 7

Substituting these values in the expression

(5x)^5 * (-y/2)^(7-5)

= (3125x^5) * (-y/2)²

= 3125x^5 * y²/4

= (3125x^5)(y²)/4

------------------------------------

Multiplying the two expression above

21 * (3125x^5)(y²)/4

= 65625/4(x^5)(y²)

5 0
3 years ago
_________<<<<______free 5 pts lol.
GarryVolchara [31]

Answer:

yes it is true becasue ya so that equals and that is why 5(4 − x) < 3x + 1

Step-by-step explanation:

7 0
3 years ago
Which equation represents the volume of a cone with the same base and height as the cylinder below?
Firdavs [7]

Answer:

Volume of cone = (1/3) * Volume of cylinder

Step-by-step explanation:

Use the formulas

Volume of cone = (1/3)* π r^2 *h

Volume of cylinder =  π r^2 *h

Therefore

Volume of cone = (1/3) * Volume of cylinder

7 0
3 years ago
Find the slope of the line that contains the points (-5, 3) and (-1, -5).
My name is Ann [436]
Slope of the line
(3-(-5)) / (-5-(-1))
8 / -4
-2
3 0
3 years ago
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