Answer:
90 and 8
Step-by-step explanation:
The question is : the sum of two numbers is 98 and their difference is 82 find the two numbers
Let two numbers are x and y.
Sum of two numbers is 98
x+y = 98 ....(1)
The difference of two numbers is 82.
x-y=82....(2)
Adding equation (1) and (2) we get :
x+y+x-y=98+82
2x=180
x=90
Put the value of x in equation (1)
90+y = 98
y = 8
Hence, the two numbers are 90 and 8.
Answer:
Step-by-step explanation:
to find the value not in the domain,
5x+3≠0
the. solve for its value
The formula is (2)(n-4) = n-1/4
Mult both sides by 4:
8n - 32 = 4n -1, or 4n = 31, or n=31/4.
If this is not what you expected, please ensure that you have copied down the original problem correctly. What do you mean by "1/4 less?"
Let's try (2)(n-4) = 1n-(1/4)n = (3/4)n. Then,
2n-8 = (3/4)n, or (5/4)n = 8. Mult. both sides by (4/5), we get:
n = (5/4)(8) = 10. Is that what you were hoping for?
Answer:
the correct answer is number 3.
I'm 10000000000% sure.
the explanation is in the pictures.
Answer:
Step-by-step explanation:
The formula for arc length is:
Where Θ is measured in degrees.
We know that the arc length is 8π when the degree is 80. So, substitute 8π for A and 80 for Θ:
Divide both sides by 2π:
Simplify the fraction:
Multiply both sides by 9/2:
So, the radius is 18.
Now, we can find the area of the circle. The formula for the area of a circle is:
Substitute 18 into r:
Simplify:
And we're done!