Answer:
600 yd none in miles
Step-by-step explanation:
The biologist should use a block design because the different types of bacteria may respond differently to the treatments.
The first thing you want to do is combine like terms. This means you should have all the x's on one side and the constants (numbers) on the other side. You can subtract 5x from both sides of the equation and then add 7 to both sides. This gives you -2x=26. Divide both sides be -2 to isolate the variable and your answer is x=-13. Hope this helped!
Answer:
- 1296 pounds per square inch
Step-by-step explanation:
<u>Direct variation equation:</u>
<u>In this case it is:</u>
- y = kx², where y- strength, x- depth of the beam, k- coefficient
<u>Substitute the given values and solve for k:</u>
- 3600 = k*10²
- 3600 = 100k
- k = 3600/100
- k = 36
<u>The equation becomes:</u>
<u>Now, find the value of y, when x is 6:</u>
<u><em>Note, I took the depth as 6 inches but the question is a bit confusing by saying "four six inches". If it is 4 inches then your answer will be:</em></u>
Step-by-step explanation:
what you did was you multiplied all numbers (incl. pi as number) :
1/6, pi, 1/12, pi
and that gives 0.137077839. no i or pi attached. just the plain result number.
so, if you need to just calculate the factors of pi, but don't need the fully numeric result, then your problem looks like
1/6 × pi × 1/12 × pi = 1/72 × pi²
so, you have an expression of pi² with a factor of 1/72.
you only need to type in all the factors, not pi itself (that's what you need to add at the end yourself).
