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4 years ago

Division need help help me know what 12 ÷ 4 =

Mathematics

2 answers:

AURORKA [14]4 years ago

4 0

Hello!

Explanation:

First, divide by the numbers.

$12/4=3$

$12/3=4$

You can also multiply by the numbers equal to 12.

$4*3=12$

$3*4=12$

Answer: → $=3$

Hope this helps!

Thanks!

-Charlie

notsponge [240]4 years ago

3 0

12/4 is 3, and you can check this because 3 x 4 is 12.

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8 ^ x * 16 ^ x - 1 equals 1

Lana71 [14]

Answer:

${8}^{x} \times {16}^{x } - 1 = 1 \\ {2}^{3x} \times {2}^{4x} = 1 + 1 \\ {2}^{7x} = {2}^{1} \\ 7x = 1 \\ x = \frac{1}{7}$

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3 years ago

Oliver hits a baseball at 3 feet above the ground with an initial speed of 135ft/sec at an angle of 20 degrees with the horizont

Serhud [2]

Answer:

Option B) the ball lands in front of the wall

Explanation:

1. Find the vertical and horizontal components of the initial velocity

a) Horizontal component:

$v_{0,x}=v_0\times cos(20\º)=135ft/s\times cos(20\º)=126.86ft/s$

b) Vertical component:

$v_{0,y}=v_0\times sin(20\º)=135ft/s\times sin(20\º)=46.17ft/s$

2. Find the time when the ball runs 380 feet horizontally:

$x=v_{0,x}\times t\\\\380ft=126.86ft/s\times t$

$t= (380ft)/(126.86ft/s)=2.995s\approx 3.0s$

3. Find the height of the ball when the time is 3.0s

$y=y_0+v_{0,y}\times t-gt^2/2$

y₀ = 3 ft
g ≈ 32.174 ft/s²

$y=3ft+46.17ft/s\times 3.0s-32.174ft/s^2\times (3.0s)^2/2$

$y=-3.3ft$

This result means that the ball does not reach the wall because it has fallen to the ground (when y = 0) before 3.0s.

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3 years ago

What is the solution of( 6) (65) = 6°?

Marina86 [1]

Answer:

Step-by-step explanation:just try to be a part of the team and I will be there at the same time I don't have a car so I can I will be there at the same time I don't have a car so I can get the money to you and your family a very happy and prosperous New year to you and your family a very happy and prosperous New year to you and your family

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3 years ago

The population of a city is increasing at a rate of 4% each year. In 2000, there were 236,000 people in the city. Write an expon

sukhopar [10]

Answer:

A = 236,000 (1+ 0.04)^9

335,902 people in 2009

Step-by-step explanation:

Hi, to answer this question we have to apply an exponential growth function:

A = P (1 + r) t

Where:

p = original population (in 2000)

r = growing rate (decimal form) = 4/100 = 0.04

t= years

A = population after t years

Replacing with the values given:

A = 236,000 (1+ 0.04) ^t

To find the population in 2009:

We have to calculate the number of years passed since 2000: (2009-2000 = 9 years =t)

Substituting t=9 in the function:

A = 236,000 (1+ 0.04)^9

A =335,902 people

Feel free to ask for more if needed or if you did not understand something.

3 0

4 years ago

Find the real numbers x and y that make the equation true (x+6i)=(3-i)+(4-2yi)

Ronch [10]

Answer:

x = 7

y = -7/2

Step-by-step explanation:

(x+6i)=(3-i)+(4-2yi)

First look at the real parts

x = 3 +4

x = 7

Then look at the imaginary part

6i= -i -2yi

6 = -1-2y

Add 1 to each side

6+1 = -2y

7 = -2y

Divide by -2

7/-2 = y

5 0

4 years ago