Answer:
x=1
Step-by-step explanation:
3(x+1)=-2(x-1)+6
1) Distribute 3 to x and 1:
3x+3=-2(x-1)+6
2) Distribute -2 to x and -1:
3x+3=-2x+2+6
3) Combine alike terms:
3x+3=-2x+8
4) Add 2x to both sides:
5x+3=8
5) Subtract 3 from both sides:
5x=5
6) Divide both sides by 5:
x=1
Think of ratios as fractions
4:2 = 4/2 = 2
5:4 = 5/4 = 1.25
2 > 1.25 ∴ 5:4 is smaller by 0.75
5:4 is your answer
hope this helps
6 and 7 because it is 6.32
Answer:
Check the explanation
Step-by-step explanation:
A. All polynomials of the form p(t) = a + bt2, where a and b are in: This means that A is closed under scalar mult and vector addition, and includes the zero vector.
B.All polynomials of degree exactly 4, with real coefficients: what this means is that under vector addition, B isn't closed, and it does not consist of the zero vector. What it consist of is just polynomials with degree exactly 4. Let f=x4+1f=x4+1 and let g=−x4g=−x4. Both are in B, but their sum is not, because it has degree 0.
C. All polynomials of degree at most 4, with positive coefficients: what this means is that C is not a subspace for the reason that the positive coefficients make zero vector impossible. The restriction there also makes C not closed under multiplication by the scalar −1.
So the answer is only A :D
<h3>Answer:</h3>
When creating a confidence interval, higher confidence corresponds to a <u> larger </u> interval, and lower confidence corresponds to a <u> smaller </u> interval.
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Explanation:
Imagine you are going fishing for an elusive sea creature of some kind. Casting a very wide net means we are more confident in catching the creature, in comparison to using a smaller net.
The fishing net is analogous to the width of the confidence interval. The wider the confidence interval, the more confident that we're capturing the parameter we're trying to measure.
