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3 years ago

THIS IS A QUIZ HURRY!!! WHOEVER GETS THEM RIGHT GETS BRAINLIEST

Mathematics

1 answer:

kirill115 [55]3 years ago

8 0

Answer:

3- 10

4- 30

Step-by-step explanation:

if there is 10 dimes in 1 dollar,

1 times 3= 3

10 times 3= 30

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Using suitable algebraic rule, calculate 105^2 -5^2

Harman [31]

Answer:

$\huge\boxed{\sf 11000}$

Step-by-step explanation:

$\sf 105^2 - 5^2\\\\Using\ Formula \ a^2 = b^2 = (a+b)(a-b)\\\\Here\ a = 105 \ and \ b = 5\\\\(105+5)(105-5)\\\\(110)(100)\\\\11000$

Hope this helped!

<h2>~AnonymousHelper1807</h2>

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3 years ago

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Nana76 [90]

Hope this helps! As you can see it is reflected over.

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3 years ago

Pls help ill give u brainliest

Monica [59]

Answer:

Answers:

Rate of change = -5

Initial value = 25

Step-by-step explanation:

Each time x increases by 2 (eg from x = 1 to x = 3), the value of y drops by 10 (eg from y = 20 to y = 10)

Therefore the slope is...

slope = rise/run = (change in y)/(change in x) = -10/2 = -5

slope = -5

So each time x increases by 1, y will decrease by 5

Flip things around: each time x decreases by 1, y will increase by 5

So the pair (x,y) = (1,20) shown in row 1 of the table leads to (0,25) based on the rule above. Another way to see this is to plug m = -5, x = 1 and y = 20 into y = mx+b and solve for b to get b = 25

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3 years ago

Question

IgorLugansk [536]

Answer:

the time is 1.57 sec and the distance is 49.32mm

Step-by-step explanation:

Given that,

The angle is 180°

Angular velocity is 2rev/sec

The radius is 10mm

we are to find the time and distance traveled at that time

The formula is

θ = at

where t is the time,

a is the angular velocity

θ is angle in radian

so,

θ = 180° × π/180°

θ = π

= 3.14

Hence ,

θ = at

3.14 = 2t

t = 1.57sec

let the distance be xmm

$\frac{1.57 \times 180^0}{360} = \frac{x}{20 \pi} \\\\0.785 = \frac{x}{20 \pi} \\\\x = 49.32mm$

Therefore , the time is 1.57 sec and the distance is 49.32mm

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