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kvasek [131]
2 years ago
11

Help this is clever 8.4 I need this by 7

Mathematics
1 answer:
alexandr1967 [171]2 years ago
3 0

Answer:

Just do 8.4 times 7

Step-by-step explanation:

8.4 times 7 = 58.8

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The answer is -9,9 Its funny cuz I just did this problem on Khan academy

Step-by-step explanation:

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A cake weighs 225g and is shared equally between five people. what weight of cake does each person receive?
cluponka [151]

Step-by-step explanation:

\frac{225g}{5}  = 45

which means each person receive 45g cake

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2 years ago
What is the midpoint of AB?
BabaBlast [244]

Answer:

A picture of the problem might help

7 0
3 years ago
A gas station stores its gasoline in a tank underground. The tank is a cylinder lying horizontally on its side. The radius is 5
atroni [7]

Answer:

The exact work required to pump all the gasoline to the surface of the ground is π × 5.094 × 10⁶ j

Step-by-step explanation:

Here, we note that volume of a slice is given by

Length × Width × Height

Length of slice = Length of cylinder = 15 ft

Since the slice height is Δy ft thick and located y ft above the center of the cylinder, then

Width of slice = 2 × √(r² - y²)

Where:

r = Radius of the cylinder =5 ft

∴ Width of slice = 2 × √(25 - y²)

∴Volume of slice = 15 ×2 × √(25 - y²)×Δy

Mass of slice then = 42 × 15 ×2 × √(25 - y²)×Δy = 1260 × √(25 - y²)×Δy

The force required to lift the slice is the weight of the slice, which is given by

32.2 × 1260 × √(25 - y²)×Δy = 40572 × √(25 - y²)×Δy N (Newtons)

The work done by the force is the product of the force and the distsnce through which the force acts.

Work done = 40752×(10-y) × √(25 - y²)×Δy

Therefore total work done is given by

W = \int\limits^5_{-5} {40752\times (10-y) \times \sqrt{ (25 - y^{2} )} } \, dy

 

= 5094000·π J = π × 5.094 × 10⁶ j

The exact work required to pump all the gasoline to the surface of the ground = π × 5.094 × 10⁶ j

6 0
2 years ago
Felipe has 3/4 acre of land to use for a vegetable garden. He separates the land into vegetable plots that are each 1/12 acre. H
antiseptic1488 [7]

Answer:

1) The number of vegetable plot Filipe has = 9 vegetable plots

2) A number line with 1/12 divisions will give the number of 1/12 acre vegetable  plots as the number of divisions between 0 and 3/4

Step-by-step explanation:

1) The total size of the land Filipe has = 3/4 acre

The size of the vegetable plots to which he separates the land = 1/12 acre

The number of vegetable plot Filipe has = (The total size of the land Filipe has)/(The size of the vegetable plots to which he separates the land )

∴ The number of vegetable plot Filipe has = (3/4)/(1/12) = 9

The number of vegetable plot Filipe has = 9 vegetable plots

2) The number line can be used to model the situation by having the number line that has divisions of 1/12 unit and counting the number of 1/12 divisions between the zero (0) mark and the three quarter (3/4) mark

3 0
3 years ago
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