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mestny [16]
3 years ago
7

For a sample size of 120 and a sample proportion of 0.4, what is the standard

Mathematics
1 answer:
marta [7]3 years ago
5 0

Answer:

c I think not sure juinji

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I need your help<br><br> what is the meaning of math?
nata0808 [166]

Answer:

the science of numbers and their operations (see OPERATION sense 5), interrelations, combinations, generalizations, and abstractions and of space (see SPACE entry 1 sense 7) configurations and their structure, measurement, transformations, and generalizations

Algebra, arithmetic, calculus, geometry, and trigonometry are branches of mathematics.

8 0
3 years ago
Read 2 more answers
Here is a number puzzle that uses math. Some might
amid [387]

Answer:

I think it always work out because they try to manipulate the equation such that you'll get 3

you can actually use other values apart from the ones used

7 0
3 years ago
What is 4(-8x + 5) – (-33x – 26)
chubhunter [2.5K]

Answer: x+46

Step-by-step explanation:

For this problem, you want to first distribute each term.

4(-8x+5)-(-33x-26)               [distrubute 4 and -1]

-32x+20+33x+26                  [combine like terms]

x+46

8 0
4 years ago
Read 2 more answers
A ball is launched straight up in the air from a height of 6 feet. Its velocity (feet/second) t seconds after launch is given by
german

Step-by-step explanation:

A ball is launched straight up in the air from a height of 6 feet. The velocity as a function of time t is given by :

f(t) = -32 t+285

Height of the ball is :

h(t)=\int\limits{f(t){\cdot} dt}\\\\h(t)=\int\limits{(-32t+285){\cdot} dt}\\\\h(t)=-16t^2+285t+C

C is constant. Here the ball is launched from a height of 6 feet. So,

h(t)=-16t^2+285t+6

At t = 2 s, h(t)=-16(2)^2+285(2)+6=512\ m

At t = 9 s, h(t)=-16(9)^2+285(9)+6=1275\ m

Between 2 s and 9 s, the ball's height changed is : 1275 - 512 = 763 m.

6 0
4 years ago
Solve x-5y=-30, 3x+5y=10 show your work
marin [14]

1) x = 5y - 30  

2) x = - 1.6y + 3.3

<em>im assuming these are 2 different questions</em>

<h3>Explanation:</h3><h3>1)</h3>

Start with the equation:

x - 5y= -30

add 5y to both sides:

x = 5y - 30

Your answer is x = 5y - 30  

<h3>2)</h3>

Start with the equation:

3x+5y=10

subtract 5y from both sides:

3x = -5y + 10

divide by 3 to get x singular

x = - 1.6y + 3.3

Your answer is x = - 1.6y + 3.3

Hope this helps :)

6 0
3 years ago
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