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yKpoI14uk [10]
3 years ago
12

The mass of a freight train is 9.98 ⋅ 106 kilograms. The mass of an aircraft carrier is 7.3 ⋅ 107 kilograms. Approximately how m

any more kilograms is the mass of an aircraft carrier than the mass of a freight train? Show your work and write your answer in scientific notation.
Mathematics
1 answer:
shutvik [7]3 years ago
8 0
Mass of freight train: 9.98 • 106
= 1057.88 kg
mass of aircraft carrier: 7.3 • 107
= 781.1 kg
difference: 1057.88 - 781.1
= 276.78 kg
= 2.7678 x 10^2
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What inverse operation is used to solve the equation?<br><br> x − 2 = 5
AleksandrR [38]

Answer:

y=7

Step-by-step explanation:

x-2=5

x=5+2=7

x=7

7 0
3 years ago
I need help with this one
Zanzabum

Answer:

The coordinates of the midpoint of the two vertices are

(0,2) (Third option)

Step-by-step explanation:

<u>Coordinates Of A Midpoint </u>

Given a pair of points in the plane

\displaystyle P_1\ (x_1,y_1)\ ,\ P_2(x_2,y_2)

the coordinates of the midpoint of both points are

\displaystyle x_m=\frac{x_1+x_2}{2}

\displaystyle y_m=\frac{y_1+y_2}{2}

The vertices given in the figure are  

\displaystyle v_1(-4,1),\ v_2\ (4,3)

So the x-coordinate of their midpoint is

\displaystyle x_m=\frac{-4+4}{2}=\frac{0}{2}=0

And the y-coordinate of their midpoint is

\displaystyle y_m=\frac{1+3}{2}=\frac{4}{2}=2

So the coordinates of the midpoint of the two vertices are

(0,2), the third option

6 0
3 years ago
pay varies directly with the number of sales he makes. He made 22 sales and earned $154. How much will he earn for 35 sales? $
miss Akunina [59]
154/22 ×35 =245$ is the answer
7 0
3 years ago
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A circle has a diameter of 20 mm what is it’s circumference? Use 3.14 for pi and do not round your answer
Dvinal [7]

Answer:

94.2

Step-by-step explanation:

circumference is d(pi)

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8 0
3 years ago
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Nadia finds out that her favorite horse family population is increasing at a constant rate. The horse family was at 24 in 2011 a
Dahasolnce [82]
\begin{gathered} y-24=\frac{8}{3}(x-2011) \\ \text{There will be 48 horses in 2020 (option A)} \end{gathered}Explanation:

The initial number of horses = 24

year = 2011

Coordinates (2011, 24)

when the number of horses became 32, year was 2014

Coordinates (2014, 32)

We find the slope = rate of change

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slope = (32-24)/(2014-2011)

slope = 8/3

The point slope formula:

\begin{gathered} y-y_1=m(x-x_1) \\ U\sin gpoint\colon x_1=2011,y_1=24 \end{gathered}y-24=\frac{8}{3}(x-2011)

The number of horses in year 2020

using points: (2011, 24) and (2020, y), we equate with the slope since it is constant for any two points on this model.

8/3 = (y - 24)/(2020 - 2011)

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cross multiply:

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144 = 3y

144/3 = 3y/3

y = 48

Hence, there will be 48horses in 2020 (option A)

4 0
1 year ago
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