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MaRussiya [10]
3 years ago
10

Find (3 × 104) − (5 × 102).

Mathematics
2 answers:
JulijaS [17]3 years ago
7 0
<span>(3 × 10^4) − (5 × 10^2)
= 295 x 10^2
= 2.95 x 10^4

hope it helps</span>
faust18 [17]3 years ago
3 0
The answer is -198

(3*104) - (5*102)
312      -  510
     -198
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(a+b+c)-a3-b3-c3=3 (a+b)(b+c)(c+a)
Valentin [98]
1.a3,b3 and c3 must be 2 digit number.
2. a3 must be greater than all the other number.
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5 0
3 years ago
Please help :( Calculate each mountain path grade to the nearest percent.
wariber [46]
The grade of the path in the mountain is calculated by determining first the ratio between the rise over the run and multiplying the ratio by 100%. 

For Path A: 

                 grade = (rise / run) x 100%
                 grade = (1414/ 3535) x 100% = 40%

<em>Answer: 40%</em>

For Path B:
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Answer: 19.36%
                 
8 0
3 years ago
Can someone please HELP ME!!
IRISSAK [1]

Volume of a cone = PI x r^2 x h/3

Volume = PI x 5^2 x 9/3

Volume = 235.62 cubic cm.

Volume of a block of wax = L x W x H

Volume = 2 x 4 x 3 = 24 cubic cm.

Total number of blocks = Volume of cone / volume of blocks:

235.62 / 24 = 9.82

Round up to 10.

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4 0
3 years ago
Raul simplified the expression, as shown below.
Softa [21]

Answer:

Raul's errors are in the application of the distributive property(he applied it wrongly), in not respecting the precedence of operations, and in the multiplication of two terms with the same base(we add the exponent).

Step-by-step explanation:

Distributive property:

The distributive property of multiplication is:

a*(b + c) = a*b + a*c

Precedence of operations:

First multiplication, then addition.

Multiplication of terms with the same base:

The multiplication of h*h = h², which Raul missed.

The correct simplification is given by:

-[3h + 7h(2-h)] = -[3h + 14h - 7h^2] = -[17h - 7h^2]=7h^2 - 17h

4 0
2 years ago
Read 2 more answers
Brand W: 500 napkins for $2.87
AlexFokin [52]
The best way, in my opinion, to do this, is to find the unit rate of each napkin brand, or the cost per napkin. To do this, divide the money amount by the amount of napkin they give you.

     /Brand W:2.87/500=.00574  \
     \Brand X: 1.27/200=.00635   \     These are the
     /Brand Y: .62/100  =.0062     /     cost per napkin.
    \Brand Z:  1.37/250=.00548  /

Which one out of these 4 values is the lowest value? Obviously the two with the 6 in the thousandths place are more expensive than the ones with the 5s in the thousandths place, so that already eliminates Brand Z and Brand W.

What do we have left?

<span>Brand X: 1.27/200=.00635 
</span><span>Brand Y: .62/100  =.0062  
</span>     Cool. Which of these is a smaller number? Tip: If the first number besides 0 is the same, check the next one! You should get that Brand Y is the cheapest! :) Hoped this helped!
3 0
3 years ago
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