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artcher [175]
3 years ago
9

Kimberly arranges 18 markers as a array. Draw an array that kimberly might make. Then write a multiplication equation to describ

e your array

Mathematics
2 answers:
vredina [299]3 years ago
8 0
Six by 3 or six across 3 down
Leona [35]3 years ago
4 0
The equation would be 9 x 2 or 6 x 3. Here is a picture so you can see the array.

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A private opinion poll is conducted for a politician to determine what proportion of the population favors adding more national
Ksju [112]

Answer:

n≅376

So sample size is 376.

Step-by-step explanation:

The formula we are going to use is:

n=pq(\frac{z_{\alpha/2}}{E})^{2}

where:

n is the sample size

p is the probability of favor

q is the probability of not in favor

E is the Margin of error

z is the distribution

α=1-0.98=0.02

α/2=0.01

From cumulative standard Normal Distribution

z_{\alpha/2}=2.326

p is taken 0.5 for least biased estimate, q=1-p=0.5

n=0.5*0.5(\frac{2.326}{0.06})^{2}\\n=375.71

n≅376

So sample size is 376

4 0
3 years ago
What are the solutions of the equation x6 – 9x3 + 8 = 0? Use u substitution to solve.
Natalka [10]
X6 – 9x3 + 8 = 0
let u = x^3
u^2 - 9u + 8 = 0 
(u-8)(u-1) = 0
u = 1,8
back substitute 
1 = x^3
8 = x^3

<span>x = 1 , 2</span>
4 0
3 years ago
Will mark brainliest for 2 possible answers (WITH NO LINKS AND ANSWERS WITHOUT EXPLANATION)
Kamila [148]

Answer:

Equation in cubed form is x^3+7x^2+7x-15

Step-by-step explanation:

7 0
2 years ago
Solve for x 4x^2+28x+49=0
barxatty [35]
4 x^2 + 28 x + 49 = 0
Divide both sides by 4:
x^2 + 7 x + 49/4 = 0
Write the left hand side as a square:
(x + 7/2)^2 = 0
Take the square root of both sides:
x + 7/2 = 0
Subtract 7/2 from both sides:
Answer: x = -7/2
4 0
3 years ago
HeLP me ASAP PLEASE ASAP i will give 50 points for the right answer
maksim [4K]
I think the first answer is 41/100

Explanation:
I worked out how likely you would be to get a green marble based off of the answers, then added them together and divided by 3

2/5 = 40/100
9/16 = 50/100
3/9 = 33/100

40+50+33 =123
123/3 =41

Then for the second answer I think it’s 50% (1/2)
8 0
3 years ago
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