What is 3 expressions where the solution is 4
Answers
(2^2)+9-(8+1)
17-(5x3)
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Find the value of 9 - [4^2 - (3 + 2)].
Answers
The feedback the other lab group should give is (d) the line of best fit is not reasonable because it has more points below it than above it.
From the scattered plot (see attachment), we can see that the scattered plot has a total of 7 dots,
- 5 of which are below the line of best fit,
- 1 is on the line of best fit, and the other one is above it.
There are more points below the scattered plot, than above it.
This means that the scattered plot is not reasonable because of (d)
Read more about scattered plots at:
Answer:
The correct option is;
The line of best fit is not reasonable because it has more points below it than above it.
Step-by-step explanation:
Here we note that there are a total of seven points in the scatter plot and there are five of the points below the line of best fit and just two above the line.
Of the five points below the line of best fit, four are just about touching the underside of the line while one of the two points above the line is just about touching the line.
The proper positioning of the line can be reviewed, therefore, with a line drawn through the four points presently touching the underside of the line of best fit.
Answers
For this case, we will use the simple interest formula:
Where,
- P: Initial amount
- R: rate
- T: time in years
Therefore, replacing values we have:
Answer:
The simple interest is given by:
$
(x – 3)(x – 15)
(x + 3)(x + 15)
(x – 3)(x + 15)
Answers
(x+a)·(x+b) = x²+xa+xb+ab = x²-12x-45
x² = x²
xa+xb = (a+b)x = -12x ⇒ (a+b) = -12
ab = -45
When (a+b) = -12 and ab = -45?
+3-15 = -12 and (+3)(-15) = -45
-3-15 = -18 and (-3)(-15) = +45
+3+15 = +18 and (+3)(+15) = +45
-3+15 = +12 and (-3+15) = -45
Answer:
(x+3)(x-15)
Answers
The value of x that satisfies the equation 0.3x = 12 is 40.
We have,
To find the value of x in the equation 0.3x = 12, we need to isolate x on one side of the equation.
We can do this by dividing both sides of the equation by 0.3, which will cancel out the coefficient of x on the left side:
(0.3x) / 0.3 = 12 / 0.3
Simplifying this equation gives:
x = 40
Thus,
The value of x that satisfies the equation 0.3x = 12 is 40.
Learn more about equations here:
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Answer:
You divide 0.3 by 12 if you don’t want a decimal do it the other way around the answer is x=40
Step-by-step explanation:
(x − 3)^2 = 2
(x − 2)^2 = 1
(x − 1)^2 = 4
Can anyone show the steps on how to get the answer?
Answers
The answer is (x-4)^2 = 3
Procedure
Complete a perfect square trinomial to factor:
x^2 - 8x + 13 = 0
Notice that -8x = 2(x)(4)
Given tha x is the square root of x^2, we want to include the square of 4, which is 16.
We must just add 16 to the first two terms, which, of course, obliges to substract the same number to maintain the equality. This way:
(x^2 - 8x + 16) + -16 + 13= 0
Now the three terms in parenthesis can be factor as a binomial squared:
(x - 4)^2 + 13 -16 =0
(x - 4)^2 - 3 = 0
(x - 4)^2 = 3 Which is the answer.
Let me know whether you could follow the explanation.
Answers
Answer:
Assuming the shape is a half-circle, there's two right angles.
Step-by-step explanation:
The angle between the straight segment and the half-circle can be measured by taking a tangent line at the intersection point and it will of course be perpendicular to the straight segment, assuming the segment is the diameter of the circle).