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givi [52]
4 years ago
11

How is multiplication using partial products different from multiplication using regrouping?

Mathematics
2 answers:
klio [65]4 years ago
5 0
Partial products is breaking down every number in multiplication and adding them. Regrouping is grouping number them adding them.They are alike because they both involve breaking down the numbers and adding them.  They are different because one is taking all the numbers broken down, while the other is just a couple of the number.
shtirl [24]4 years ago
3 0
Partial products are basically when you break down every number and add them.
I'm sure you know how to regroup.
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Answer:

219m

Step-by-step explanation:

Since the man observes the car with angle 15 before observing in 33 degrees.

For the first observation

The angle observation gives an angle if 33 degrees with the horizontal.

It gives a triangle which I'll attach to the que,

from the first triangle

Tan 33 = 100/y

Y= 100/ tan 33

Y = 153.99m.

This is the distance from the building to the distance where it was secondly observed( 33).

To find x

tan 15 = 100/(153.99+x)

153.99 + x = 100/ tan 15

153.99 + x = 373.21

The distance between the two observed angles

X= 219m.

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Train a is traveling at 30 mph faster than train b. If train a travels 350 miles in the same amount of time that train b travels
GalinKa [24]

Answer:

20 mph

Step-by-step explanation:

Let speed of Train a = Va mph

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Va = Vb + 30

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time taken = distance travelled/speed

Ta = 350/Va = 350/(Vb+30)

Tb = 140/Vb

But they both travel in the same amount of time.

So, Ta = Tb

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350v_{b} = 140(v_{b} + 30)\\\\350v_{b} = 140v_{b} + 4200\\\\350v_{b} -140v_{b} = 4200\\\\210v_{b} = 4200

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\frac{210v_{b} }{210} \frac{4200}{210} \\\\v_{b} = 20 mph

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3 years ago
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lozanna [386]

Answer:

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4 0
3 years ago
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nika2105 [10]

Answer:

Area of the triangle \simeq 5.9 sq. ft. .

Step-by-step explanation:

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So, the area of the triangle is given by,

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6 0
3 years ago
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