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SpyIntel [72]
3 years ago
14

Write the following sentence using mathematical symbols the sum of 7 and x is -13

Mathematics
1 answer:
Dominik [7]3 years ago
6 0
7 + x = -13 would be the equation.
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One afternoon 10 inches of falls in 1 1/4 hours.At this rate how many inches of snow will fall in 1 hour
saul85 [17]

Step-by-step explanation:

The rate of snowfall can be computed as inches of snow per hour.

rate = 10 inches / (1.25 hours).

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4/5 of 10 is 8; therefore the rate is 8 inches/hour

7 0
3 years ago
What is the standard deviation of the following data set rounded to the nearest tenth? 60, 40, 35, 45, 39
larisa [96]

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Step-by-step explanation:

3 0
3 years ago
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goldenfox [79]

Answer:

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3 years ago
A particle moves in the xy plane starting from time = 0 second and position (1m, 2m) with a velocity of v>=2i-4tj^
guapka [62]

Given :

A particle moves in the xy plane starting from time = 0 second and position (1m, 2m) with a velocity of v=2i-4tj  .

To Find :

A. The vector position of the particle at any time t .

B. The acceleration of the particle at any time t .

Solution :

A )

Position of vector v is given by :

d=\int\limits {v} \, dt\\\\d=\int\limits {(2i-4tj)} \, dt \\\\d=(2t)i+\dfrac{4t^2}{2}j\\\\d=(2t)i+(2t^2)j

B )

Acceleration a is given by :

a=\dfrac{dv}{dt}\\\\a=\dfrac{2i-4tj}{dt}\\\\a=\dfrac{2i}{dt}-\dfrac{4tj}{dt}\\\\a=0-4j\\\\a=-4j

Hence , this is the required solution .

5 0
3 years ago
If w = -2 and v = -8, which of the following expressions shows the values correctly substituted in for the variables in the expr
ki77a [65]

Answer:

the first one

(-2) 2-(-8)+1

3 0
2 years ago
Read 2 more answers
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