3(2x+1)=2(x+1)+1
Step 1:Simplify both sides of the equation
(3)(2x)+(3)(1)=(2)(x)+(2)(1)+ -(distribute)
6x+3=2x+2+1
6x+3=(2x)+(2+1) -(Combine Like Terms)
6x+3=2x+3
Step 2: Subtract 2x from both sides
6x+3-2x=2x+3-2x
4x+3-3=3-3
4x÷4=0÷4
x=0
To the nearest square inch, what is the area of the figure?
309
118
64
49
Answer:
309in²
Step-by-step explanation:
Area of an octagon is expressed as;
A=2(1+√2)a²
a is the side length of the octagon
Given
a = 8
Substitute into the formula
A = 2(1+√2)(8)²
A = 2(1+√2)(64)
Expand
A = 2(64+64√2)
A = 128+128√2
A = 128+128(1.414)
A = 128+181.01
A = 309in²
Hence the area of the octagon is 309in²
Express the answer in simplest form.
Answer:
1/6 of the vegetables space will be used for the tomatoes
Answer:
1/12 of the Garden
Step-by-step explanation:
When adding fractions, the denominators need to be the exact same number. Therefore, you need to find the LCM. The LCM of 3 and 4 is 12, so all the denominators will be 12.
2/3 * 4/4 = 8/12
1/4 * 3/3 = 3/12
8/12 + 3/12 = 11/12
Now you need to subtract it from 1 (the garden).
12/12 - 11/12 = 1/12
Answer:
Narrower with the same probability of reporting an incorrect interval
Step-by-step explanation:
Increasing the sample size shrinks the width of the confidence interval because the larger the sample size, the more accurate the sample represents the true population.
Standard Error is calculated by multiplying the z or t score of the confidence level by the standard deviation, then dividing by the square root of the sample size
E = z(s)/√n
t scores are used for samples below a size of 30. All t values for 95% confidence are higher than the z score of 1.96, which is used when the sample is greater than 30. This causes a larger value for the error estimate, therefore creating a larger width for the confidence interval.