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4 years ago

For two positive integers a and b define the function h(a,b) as the greatest common factor (g.c.f) of a,

Mathematics

1 answer:

Step2247 [10]4 years ago

4 0

H times a equals ha times b

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How can we efficiently multiply by multiples of 10?

Naily [24]

Answer:

just add a zero

Step-by-step explanation:

because if you do all the work it's just a waste of time when you could get the same answer by just adding a zero.

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3 years ago

Use the linear combination method to solve this system of equations. What is the value of x?

Semmy [17]

X=1 because when u put it in then u will find out.y=-1

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3 years ago

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Convert the decimal expansion 0.2777... to a fraction

tatyana61 [14]

0.2777 as a fraction is $\frac{5}{18}$

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4 years ago

A golfer takes a swing from a hill twenty feet above the cup with an initial upwards velocity of 76 feet per second. How long do

jeka94

Answer:

t = 5 seconds

Step-by-step explanation:

A golfer takes a swing from a hill twenty feet above the cup with an initial upwards velocity of 76 feet per second.

We need to find how long does it take the ball to land on the ground near the cup.

The equation for the path of the ball is given using second equation of kinematics as follows :

$-16t^2+76 t+20=0\\\\\text{or}\\\\-4t^2+19t+5=0\\\\-4t^2+20t-t+5=\\\\-4t(t-5)-1(t-5)=0\\\\(t-5)(-4t-1)=0\\\\t=5, t=\dfrac{-1}{4}\ s$

Neglecting negative value,

It will take 5 seconds for the ball to land on the ground near the cup.

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3 years ago

A new park was designed to contain two circular gardens. Garden A has a diameter of 50 m, and garden B has a diameter of 70 m. T

Nastasia [14]

Answer:

$5,811.95\ m^2$ of fabric.

Step-by-step explanation:

-The amount of fabric needed is equivalent to the area of the two gardens.

-We calculate the combined areas as:

$A=A_s+A_b\\\\=\pi r^2+\pi R^2\\\\=\pi(25^2+35^2)\\\\=1850\pi \ m^2\\\\=5811.95\ m^2$

Hence, 5811.95 sq meters of fabric will be needed to cover the area of both gardens.

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4 years ago