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kupik [55]
3 years ago
14

Please help!!! thx!!!

Mathematics
2 answers:
spin [16.1K]3 years ago
6 0
Recall that 
distance = (speed)*(time)
we're given the speed and time. If we multiply them together, we get the distance

-------------------------------------

The number 1.3 x 10^6 is in scientific notation. The coefficient 1.3 rounds to 1
This means "1.3 x 10^6" turns into "1 x 10^6"

Similarly, with the number 2.8 x 10^3, the coefficient 2.8 rounds to 3
The number "2.8 x 10^3" turns into "3 x 10^3"

When we multiply the numbers (1 x 10^6) and (3 x 10^3), we will
multiply the coefficients 1 and 3 to get 1*3 = 3
add the exponents: 6+3 = 9

So overall, the final answer is 3 x 10^9 indicating that it is choice C
(this is an estimate because we rounded the coefficients)
Naddika [18.5K]3 years ago
4 0
I think the answer is b

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The rational number<br>number ———————<br>is equal to its negative​
Zarrin [17]
Zero is equal to its negative
3 0
3 years ago
56 thousandths - 23 thousandths=how many hundredths and thousandths?
alexandr1967 [171]
<span>56 thousandths - 23 thousandths=how many hundredths and thousandths?
Let us first solve this and get the difference of the given numbers.
=> 56 thousandths = 0.056 (there are 5 hundredths and 6 thousandths)
=> 23 thousandths = 0.023 (there are 2 hundredths and 3 thousandths)
=> 0.056 – 0.023 = 0.033 is the answer
there 3 hundredths and 3 thousandths value left after subtracting the given 2 decimal numbers.</span>



5 0
4 years ago
Help me with these problems! (questions in the images)
kap26 [50]
The slope of y=9x is 9/1 which simplifies to 9

The slope of y=10x-2 is 10/1 which simplifies to 10
7 0
3 years ago
Read 2 more answers
What is the equation of the line that passes through the point (-8,1) and has a slope of -3/4
ioda

Answer:

y=-3/4-5

Step-by-step explanation:

plug in ordered pair  1= -3/4(-8)+b

solve for b. b= -5

plug in to y=mx+b

3 0
3 years ago
Read 2 more answers
Fred and Frank play a game. Fred picks an even number X and asks Frank to add all even numbers between 0 and X (inclusive) as fa
TiliK225 [7]

Answer:

The even numbers between 0 and X represents an arithmetic sequence with a common difference of 2

The rule of arithmetic sequence = a + d(n - 1)

Where a is the first term and n is the number of terms

So, for the even numbers between 0 and X

The first term = a = 0

d = 2

So, we need to find n at the last term which is X

∴ X = 0 + 2 ( n -1 )

∴ n - 1 = X/2

∴ n = X/2 + 1

The sum of the arithmetic sequence = (n/2) × (2a + (n−1)d)

Substitute with a and d and X

So, the sum = (n/2) * (2*0 + (n−1)*2)

                   = (n/2) * ((n−1)*2)

                   = n(n-1)

                   = (X/2 + 1) * (X/2)

                   = X/2 by (X/2 + 1)

So, The quick way to add all even numbers between 0 and X always works.

8 0
4 years ago
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