Answer:
117 yards
Step-by-step explanation:
From the diagram here, we can see that we are to calculate the diagonal of the rectangular football field
we can calculate this by the use of Pythagoras’ theorem which posits that the square of the hypotenuse = the sum of the squares of the two other sides
From the diagram, the diagonal is the hypotenuse while the other two sides complete the right triangle
let’s say the diagonal is length d
Mathematically;
d^2 = 100^2 + 60^2
d^2 = 10,000 + 3,600
d^2 = 13,600
d = √13,600
d = 116.62 yards which is approximately 117 yards
1.325 because 1000 is 1 and then all is left is .325
Answer: Cells typically communicate using chemical signals. These chemical signals, which are proteins or other molecules produced by a sending cell, are often secreted from the cell and released into the extracellular space. There, they can float – like messages in a bottle – over to neighboring cells.
Step-by-step explanation:
Answer:
7. x = -2 +/-
8. x = 2 or x = 6
9. x = -2 +/- 
10. t = -3 +/- 
Step-by-step explanation:
7. Subtract 320 from both sides: 4(x + 2)^2 = -320
Divide by 4: (x + 2)^2 = -80
Square root both sides: x + 2 = +/-
. We need to add the imaginary i to this: +/-
= +/-
= +/- 
Subtract 2 from both sides: x = -2 +/- 
8. Add 18 to both sides: 7(x - 4)^2 = 28
Divide by 7: (x - 4)^2 = 4
Square root both sides: x - 4 = +/- 2
Add 4 to both sides: x = 4 +/- 2 ⇒ x = 2 or x = 6
9. Add 5 to both sides: -2(x + 2)^2 = 13
Divide by -2: (x + 2)^2 = -13/2
Square root both sides: x + 2 = +/-
. We again need i: +/-
= +/-
+/- 
Subtract 2 from both sides: x = -2 +/- 
10. Multiply by 5 on both sides: (t + 3)^2 = 35
Square root both sides: t + 3 = +/- 
Subtract 3: t = -3 +/- 
Hope this helps!