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3 years ago

(b) The force, F, between two objects is inversely proportional to the square of the distance, d, between

Mathematics

1 answer:

LiRa [457]3 years ago

6 0

Answer:

F is reduced by 31%

Step-by-step explanation:

F = 1/(d²)

now, we increase the distance by 20% (multiply by 1.2).

F new = 1/(1.2×d)² = 1/(1.44×d²) = (1/1.44) × (1/(d²)) =

= 1/1.44 × old F = 0.69 × old F

100 - 69 = 31%

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anygoal [31]

Answer:

Step-by-step explanation:

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Where,

m is the slope, and

b is the y-intercept (point where line cuts the y-axis)

Also, parallel lines have equal slopes.

Equation of first plane is given as $d=3.67t+4.81$

Comparing this with general form of a line, we see that 3.67 is the slope and 4.81 is the y-intercept.

The second plane is going parallel to this. So slope should be same. Hence second plane has slope of 3.67. We can write:

$d=3.67t+c$

To find the equation of second plane, we need to solve for c. Also, a point given for second plane is $(t=0, d=2.14)$ , substituting these values into the equation we got, we get the value of c:

$2.14=3.67(0)+c\\2.14=0+c\\c=2.14$

We already know m and now we know c, so we can write final equation as:

$d=3.67t+2.14$

Answer choice C is right.

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Black_prince [1.1K]

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Step-by-step explanation:

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3 years ago

The sum of two numbers is 66. two times the smaller number is 15 more then th larger number what are the numbers

Delicious77 [7]

Let x = big number

Let y = small number

x + y = 66...Equation A

2y = x + 15...Equation B

We have two equations in two unknowns.

x + x + 15 = 66

2x = 66 - 15

2x = 54

x = 54/2

x = 27

Plug x = 27 into EITHER equation above to find y.

I will use Equation A.

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y = 66 - 27

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Read 2 more answers

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tester [92]

Answer:

1 pound is 453.6 grams appox

Step-by-step explanation:

to calculate how many grams is 2 pounds, u can do 2x453.6 which would be 907.2

for all others i have an attached file :)

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3 years ago