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Genrish500 [490]
3 years ago
13

Please show all work :)

Mathematics
1 answer:
yulyashka [42]3 years ago
7 0
I might be wrong but I think the answer would be -x+2x+6 as a simplified version because if you use the equation (x+4•x+3)-3x(x+1)=a (or any letter you choose), you will get 3x+x^2+12+4x-3x-3x^2=y. Then, you can combine like terms:
4x-2x+12=a
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If the estimate of expected population proportion having a desired characteristic based on intuition is 60 percent and the accep
Anika [276]

Answer:

B

Step-by-step explanation:

Our values are:

N = 100,000 (We assume it)

Proportion is p = 0.6

Margin of error (E) = 0.05

confidence-level (cl) = 0.95

Z-value = 1.96

We need to approach through Proportion,

n=\frac{ (z_2 * p *q) + ME_2}{ME_2 + z_2 * p * q / N}

Substituting,

n = \frac{(1.962*0.6*0.4)+0.052}{0.052 + \frac{1.962 * 0.6 * 0.4}{100000}}

n= \frac{(3.841 * 0.24)+0.0025}{0.0025+\frac{3.841*0.24}{100000}}

n =\frac{ 0.9243}{0.002509}

n= 368

3 0
3 years ago
What is the mixed number for 4.8 in simplest form
ollegr [7]
The mixed number for 4.8 is 4 8/10

For simplest form, divide 8/10 by 2 to get 4/5

Your final answer would be 4 4/5
8 0
4 years ago
Plsss help i’ll give brainliest if you give a correct answer
posledela

Answer:

<em>48 drops of red food coloring</em>

Step-by-step explanation:

32/8 = 4

SO she uses 4x as much yellow food coloring meaning you need to use 4x as much red food coloring.

4 x 12 = 48 so she needs to add 48 drops of red food coloring

3 0
3 years ago
Read 2 more answers
Find the volume of a sphere if its radius is 6 cm. Use estimation for pi.
Viefleur [7K]
Volume is calculated by multiplying (3/4)pi by the radius cubed

6 0
3 years ago
What is the value of x , if y = 2<br>in the given equation ;<br><br>5x + 2y = 9​
Strike441 [17]
<h3><u>Explanation</u></h3>
  • Given the equation.

5x + 2y = 9

with given condition where y = 2.

Therefore, substitute the value of y in the equation.

5x + 2(2) = 9 \\ 5x + 4 = 9

  • Solve the equation for x-term.

5x = 9 - 4 \\ 5x = 5 \\ x =  \frac{5}{5}  \longrightarrow  \frac{1}{1}  \\ x = 1

  • Check the answer by substituting both x-value and given y-value in the equation.

5x + 2y = 9 \\ 5(1) + 2(2) = 9 \\ 5 + 4 = 9 \\ 9 = 9 \longrightarrow  \bf{true} \:  \green{ \checkmark}

Hence, the value of x is 1.

<h3><u>Answer</u></h3>

<u>\large{x = 1}</u>

3 0
3 years ago
Read 2 more answers
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