Answer:
I believe the answer is 8.
Step-by-step explanation:
8.02 rounded to the nearest tenth is 8
Answer:
Use a compass to measure the length of AB.
Draw an arc from point B (or point A) with that distance.
Extend line AB through that arc and label the intersection as point C.
AC is twice the length of AB.
Answer:
The solution of given expression = 5 , -3
Step-by-step explanation:
Given expression;
15 - 4x = x² - 6x
Find:
The solution of given expression
Computation:
15 - 4x = x² - 6x
x² - 6x + 4x - 15 = 0
x² - 2x - 15 = 0
x² - (5 - 3)x - 15 = 0
x² - 5x + 3x - 15 = 0
x(x - 5) + 3(x - 5) = 0
(x - 5)(x + 3) = 0
So,
x - 5 = 0 and x + 3 = 0
x = 5 and x = -3
The solution of given expression = 5 , -3
Answer:
![[H^{+} ]= 10^{-pH}](https://tex.z-dn.net/?f=%5BH%5E%7B%2B%7D%20%5D%3D%2010%5E%7B-pH%7D)
Step-by-step explanation:
To solve this question it is important to remember logarithm rules. That is:
![pH = -log[H^{+}]\\\\-pH = log_{10}[H^{+} ]\\\\H^{+}] = 10^{-pH}\\](https://tex.z-dn.net/?f=pH%20%3D%20-log%5BH%5E%7B%2B%7D%5D%5C%5C%5C%5C-pH%20%3D%20log_%7B10%7D%5BH%5E%7B%2B%7D%20%5D%5C%5C%5C%5CH%5E%7B%2B%7D%5D%20%3D%2010%5E%7B-pH%7D%5C%5C)
Answer: true
Step-by-step explanation:
The polar cordinates are (6, pi/2)
We know that a imaginary number can be written, in polar cordinates (R, θ)
Z = R*(cos(θ) + i*sin(θ))
Then, the point (6, pi/2) is:
Z = 6*(cos(pi/2) + i*sin(pi/2)) = 6i
The other representation is (a, b) and in this case the imaginary number is
Z = a + b*i
In this case we have (0, 6) so:
Z = 0 + 6*i
Then you can see that the statement is true,
