Answer:
Step-by-step explanation:
So we have:
First, add 8 to both sides. The right will cancel:
Now, notice that A is multiplied to B. So, the isolate A, divide both sides by B. The right will cancel:
And we're done!
Answer:
option C
Step-by-step explanation:
Answer:
Option C
Step-by-step explanation:
Quadratic formula:
hope this helps....
Identify the reference angle, θ.
θ =
°
Answer:
The reference angle will be
Step-by-step explanation:
To solve for , the reference angle can be obtained as follows:
=
= (Because )
Thus, the above equation can be written as:
=
=
Hence, the reference angle will be
Let be the population mean.
Null hypothesis :
Alternative hypothesis :
Since the alternative hypothesis is left tailed, so the test is a left-tailed test.
Sample size : n=5 <30 , so we use t-test.
Test statistic:
Critical t-value for t=
Since, the absolute value of t (1.79) is less than the critical t-value , so we fail to reject the null hypothesis.
Hence, we have sufficient evidence to support the company's claim.
Answer:
x = 5°
Step-by-step explanation:
We know that in a triangle, the measure of an exterior angle is equal to the sum of its two remote interior angles, therefore:
7x + 4 + 61 = 20x
7x + 65 = 20x
13x = 65
x = 5°
Answer:
Solution given:
61°+(7x+4)°=20x [ exterior angle is equal to the sum of two opposite interior angle]
65+7x=20x
65=20x-7x
13x=65°
x==5°
value of x=5°
Answer:
57552232
Step-by-step explanation: