Yes, in my opinion I think a bar model would be a good model for converting miles to feet. It is simple and easy to understand
Answer:
B. There is one real, double root
Step-by-step explanation:
For ax² + bx + c = 0, the discriminant is b² − 4ac.
If the discriminant is positive and a perfect square, there are two real, rational roots.
If the discriminant is positive and not a perfect square, there are two real, irrational roots.
If the discriminant is 0, there is one real, double root.
If the discriminant is negative, there are two complex roots.
Here, a = 64, b = -16, and c = 1.
b² − 4ac
= (-16)² − 4(64)(1)
= 0
The discriminant is 0. Therefore, there is one real, double root
The we should use ANOVA instead of several t-tests to evaluate the differences in the mean of three or more groups.
<h3>What is t test?</h3>
A t- test is a measurable test that is utilized to look at the method for two gatherings. It is many times utilized in speculation testing to decide if a cycle or treatment really meaningfully affects the number of inhabitants in interest, or whether two gatherings are not quite the same as each other.
<h3>Explain ANOVA test:</h3>
The ANOVA test permits an examination of multiple gatherings simultaneously to decide if a relationship exists between them.
<h3 /><h3>According to question:</h3>
We ought to utilize ANOVA rather than a few t-tests to assess the distinctions in the mean of at least three gatherings on the grounds that without fail, we direct a t-test (between two gatherings) there is some opportunity that a Kind I blunder is being made while doing the test.
To know more about t-test visit:
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Basically meaning that no model can exactly be on point with whatever it is modeling. Two things cannot be EXACTLY identical to what they are referring to, but it is saying that some can get close enough to be useful as an example.
Answer:
x=9
Let's solve your equation step-by-step
12(x−2)+3x=x+12+10x
<em>Step 1: Simplify both sides of the equation.</em>
12(x−2)+3x=x+12+10x
(12)(x)+(12)(−2)+3x=x+12+10x(Distribute)
12x+−24+3x=x+12+10x
(12x+3x)+(−24)=(x+10x)+(12)(Combine Like Terms)
15x+−24=11x+12
15x−24=11x+12
<em>Step 2: Subtract 11x from both sides.</em>
15x−24−11x=11x+12−11x
4x−24=12
<em>Step 3: Add 24 to both sides.</em>
4x−24+24=12+24
4x=36
<em>Step 4: Divide both sides by 4.</em>
4x/4=36/4
x=9
Answer:
<u>x=9</u>
