Answer:The bar model is a pictorial representation of a problem. In a word problem the bar model helps students to visualize the relationship between the numbers given and what are they looking for. For subtraction ( and addition ) you can use Part - Whole bar model. Whole - Part 1 = Part 2.
Step-by-step explanation:
Volume of a sphere with radius of 70 feet is:
where r is that radius
Because we need quarter sized tank of that radius we need to divide formula for volume by 4
Than we get:
V = 359188,76
Rounded:
V = 359189
Hey!
454 rounded to the nearest ten is: 450
This is because 4 is less than five, which is why we would round it to 50.
The slope of BC is
Step-by-step explanation:
Let us revise some notes about slopes of lines
- If two lines are parallel, then their slopes are equal
- If to lines are perpendicular, then the product of their slopes is -1, that means if the slope of one is m, then the slope of the other is
∵ ABCD is a rectangle
∵ AB // CD
∴ The slope of AB = the slope of CD
∵ BC ⊥ AB
∴ The slope of BC × the slope of AB = -1
∵ The slope of AB =
- To find the slope of BC reciprocal the slope of AB and reverse its sign
∴ The slope of BC =
The slope of BC is
Learn more:
You can learn more about the slope in brainly.com/question/9801816
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Answer:
x equals 4
Step-by-step explanation: