Answer:
C. Age is a probably lurking variable in this study.
Step-by-step explanation:
The two variables that are related in this study are arithmetic and exercise.
The variable which is not known and cannot be controlled is age. But it may effect other variables. Such a variable is called lurking variable.
In this experiment we know the age range but not exact age. It may effect as younger students may not be able to solve questions easily.
Choice C is the most appropriate conclusion given for the finding.
Hey there!
Let's start off by simplifying.
Now let's combine like terms.
Hope this helps!
Answer:
Given that the triangular prism has a base that is a right triangle.The height of the triangular prism is 10 cm.The side lengths of the triangle are 4.3 cm, 5.2 cm and 6.75 cm.We need to determine the surface area of the triangular prism.
Step-by-step explanation: The surface area of the triangular prism can be determined using the formula,where b is the base and h is the height of the triangle.s₁, s₂, s₃ are the side lengths of the triangle andH is the height of the prism.Substituting b = 5.2, h = 4.3, s₁ = 5.2, s₂ = 4.3, s₃ = 6.75 and H = 10 in the above formula, we get SA=(5.2)(4.3)+(5.2+4.3+6.75)(10)
SA=22.36+(16.25)(10)
SA=22.36+162.5
SA=184.86 cm 2Thus, the surface area of the triangular prism is 184.86 square cm.
The answer to Part A is 13.25.
And the answer to Part B is hen you round to the nearest 10th the steps are nearly always the same:<span>Identify which place value you are rounding to. The smaller the place value, the more accurate the final result will be.Look to the next smallest place value, the digit to the right of the place value you're rounding to. For example, if you want to round to the nearest ten you'd look at the ones place.If the digit in the next smallest place value is less than five (0, 1, 2, 3, or 4), you leave the digit you want to round to as-is. Any digits after that number (including the next smallest place value you just looked at) become zeros, or drop-off if they're located after the decimal point. This is called rounding down.<span>If the next smallest place value is greater than or equal to five (5, 6, 7, 8, or 9), you increase the value of the digit you're rounding to by one (+1). Just like before, any remaining digits before the decimal point become zeros, and any that are after the decimal point are dropped. This is called rounding up.
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5 feet is 60 inches. The other side with the two lines is also 17.2 in. The two sides with only one line will each be (60 - 17.2 - 17.2) / 2, because they're equal. That will make both sides with the one mark 25.6 / 2, or 12.8 in.
You can't find the area unless you have the angle of the vertices or the height.