3 years ago

(4.2 x 10^8) x (2.8 x 10^−2)

Mathematics

1 answer:

lions [1.4K]3 years ago

8 0

If this is being simplified the answer is 116760000000

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The sum of two numbers is 20. The difference between three times the first number and twice the second is 40. Find the two numbe

viva [34]

The numbers are 16 and 4

Reason: 16+4=20 and (16*3)-(4*2)=48-8=40

4 0

3 years ago

You bike 9.8 miles in 1.4 hours at a steady rate.What equation represents the proportional relationship between the x hours you

AlexFokin [52]

Answer:

The equation is $\frac{x}{y}= 8$

Step-by-step explanation:

Let the time for which i bike is = x hours

Let the distance traveled in x hours = y miles

Ratio of distance and time will be = x : y

I travel 11.2 miles in 1.4 hours then the ratio of time and the distance traveled will be 1.4 : 11.2 Or 14 : 112

then the ratio of distance and time will be same in both the cases

So equation will be

$\frac{x}{y} =\frac{14}{112}\\\\\frac{x}{y} =8$

Hence, equation representing the proportional relationship will be $\frac{x}{y}= 8$

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3 years ago

For each function, find f(-2), f(-0.5), and f(3). 1. f(x)=-x+4 2. f(x)= 3/8x-3

bekas [8.4K]

The values of f(-2), f(-0.5), and f(3) can be solved by substituting the values inside the parentheses to the function to the variable x. We do as follows:

1. f(x)=-x+4

f(-2) =-x+4 = 2+4 = 6

f(-0.5) =-x+4 = 0.5 + 4 = 4.5

f(3) =-x+4 = -3+4 = 1

2. f(x)= 3/8x-3

f(-2)= 3/8x-3 = -15/4

f(-0.5) = 3/8x-3 = -51/16

f(3) = 3/8x-3 = -15/8

Hope these answers the question.

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3 years ago

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Shtirlitz [24]

Answer:

888

Step-by-step explanation:

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4 years ago

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