Answer:
For the expression if they don't want you to include the variables then I would write 3.14(6 + 4) or 3.14(2*3+2²). For the surface area, your answer is 31.4 units.
Step-by-step explanation:
If r = 2 and s = 3, then just plug them into the equation 3.14(rs + r²)
3.14(2*3+2²)
= 3.14(6+4)
=3.14(10)
=31.4 units for the Surface Area
Answer:
16
Step-by-step explanation:
Answer:
1 = 1.3
3 = 3.3
0 = 40
Step-by-step explanation:
i tried my best, hope u get a good score !
Answer:
Area= 4,200 square feet
Step-by-step explanation:
If I read your question correctly, I'm assuming the dots (".") mean a multiplication sign ("x").
If they are all being multiplied, use PEMDAS to solve this. First, find to value for any exponents you have (in this case, it's and ).
Now that you have the values for these two exponents, multiply all the numbers together.
8 x 3 x 25 x 7 = 4,200
Answer:
About 2.569 seconds
Step-by-step explanation:
To solve this problem, you can separate it into two half parabolas. The beginning part is initial upward rising. To calculate the amount of time that this part of the dive takes, you can use the formula , where is the final velocity, is the initial velocity, a is the acceleration due to gravity, and t is the amount of time it takes. You know that the final velocity is 0, since the diver is reaching the terminal of their dive. Therefore, you can set up the following equation (assuming that the acceleration due to gravity is 32ft/s^2):
seconds
To find the height that this indicates the diver has risen, you can plug this time into the following formula:
feet
For the second part, you can use the equation again. Since the initial velocity for this part is 0, you can set up the following equation:
Adding this to the time that the first part of the dive takes, you get a total of about 2.569 seconds. Hope this helps!