Answer:
1) 59.7 2) 7.1
Step-by-step explanation:
1)The diameter of a circle is 19 m. Find the circumference to the nearest tenth
The equation to find the circumference for a circle is C=2πR or C = πD. The diameter is equal to 2r so that is why the equation works either way. Now we will plug in the numbers. C =19π. This is approximately equal to 59.6902604182 which is approximately equal to 59.7
2)AND the diameter of a circle is 3ft. Find its area to the nearest tenth.
As stated before the diameter is equal to 2r. The area of a circle is calculated using the equation πr^2. First we need to find the radius which is 1/2D. 3/2 = r or 1.5 = r. Now we can plug all values in. A = π1.5^2 which equals to 2.25π which equals to 7.06858347058 which is approximately 7.1.
Your answer should be the last one. All you do is put your x&y intercept into the equation. It’s pretty simple and easy
Answer:
- y=0.8x
- See Explanation for others
Step-by-step explanation:
The 3 cans of beans had a total weight of 2.4 Pounds
Therefore:
- 1 can of beans = (2.4 ÷ 3) =0.8 Pounds
The following applies from the options.
- y=0.8x where y is the weight and x is the number of cans.
- A 2-column table with 3 rows. Column 1 is labeled number of cans with entries 5, 15, 20. Column 2 is labeled total weight (in pounds) with entries 4, 12, 16.
Using y=0.8x
When x=5, y=0.8 X 5=4
When x=15, y=0.8 X 15=12
When x=20, y=0.8 X 20=16
- On a coordinate plane, the x-axis is labeled number of cans and the y-axis is labeled total weight (in pounds. A line goes through points (5, 4) and (15, 12). This can be clearly seen from the table above as (5,4) and (15,12) are points on the line.
Area = Length x Width
so, 88 = (something) x 8
Can you work out the something using mental math?