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Softa [21]
3 years ago
8

Why are basic facts needed when dividing large numbers?

Mathematics
1 answer:
GREYUIT [131]3 years ago
5 0
Weeeeelllll, when dividing lets say long division    4 58..... Nevermind this topic is like so easy and your in highschool
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write an equation in slope-intercept form of the line whose y-intercept is -3 and the line is perpendicular line whose equation
Artemon [7]

first you need to find the slope of he current equation by changing it to y=mx+b

3x-2y=9  subtract 3x from both sides

-2y=-3x+9  divide both sides by -2

y+3/2x-9/2  Your slope of the existing is 3/2 or 1 1/2

a perpendicular line has the opposite reciprocal slope so 3/2 would be -2/3

-3 is your y intercept. now you can make your equation

y=-2/3x-3

8 0
3 years ago
Please I need help step by step
zaharov [31]
To find the surface area, you need to do the following:
A side of the figure is a trapezoid, so you should do 13+5x7 (since there are 2 of the same sides there is no need to divide by two.) and it should equal 126. To find the area of the top of the figure, you need to do 5x2 which equals 10. The area of the bottom of the figure is 26 (13x2), then do 2x3x2 to get the sides on the left and right of the figure. After all of this, add them together. (126+10+26+12=174.)
The surface area should be 174mm.
6 0
3 years ago
A person, who decided to go to weekend trip should not exceed 8 hours driving in a day. Average speed of forward journey is 60 k
Paraphin [41]
Since he must not exceed 8 hours driving in a day:
Let the distance of the picnic be = x km.

Therefore  time for forward journey  =  x / 60
Return journey                                   =  x / 50

The total trip should not exceed 8 hours.
Therefore:              x / 60 + x / 50  <= 8.      LCM = 300

Taking LCM and multiplying on both sides:
                                5x  +  6x  <=  8(300)
                                       11x    <=  2400
                                           x    <=    2400/11
                                           x   <=  218.18
The picnic spot must be less than or equal to 218.18 km.
5 0
3 years ago
Guys please solve this problem I’ve been trying but I can’t solve it. I’m begging
Drupady [299]

Answer: 0.40 = x

Step-by-step explanation:

3x + 13 = 7x - 15

15 - 13 = 7x - 3x

2 = 5x

2/5 = x

0.40 = x

8 0
3 years ago
Read 2 more answers
Which expressions are equivalent to 2^−4·2^2?
Ede4ka [16]

Answer: the answer is 6)

Step-by-step explanation:

Because 2x^{-4} . 2x^{2} = 2x^{-4+2} = 2x^{-2}

I hope it right

5 0
3 years ago
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