X should equal 2 and -2 (if it is just the x squared and not 3x)
Answer:
given the circumference is 30t.
Step-by-step explanation:
The circumference of a circle is 
and the area of a circle is 
assuming the radius is 
for the circle in question.
We are given the circumference of our circle is 
.
If we solve this for r we get: 
. To get this I just divided both sides by 
since this was the thing being multiplied to .
So now the area is 
.
Simplifying this:
.
30/2=15 so:
.
Squaring the numerator and the denominator:
Using law of exponents or seeing that a factor of 
cancels:
X = number of dimes
x + 2 = number of nickels
3(x + 2) = number of pennies
10x + 5(x + 2) + 3(x + 2) = 52
10x + 5x + 10 + 3x + 6 = 52
18x = 36
x = 2
x = 2 (number of dimes)
x + 2 = 4 (number of nickels)
3(x + 2) = 12 (number of pennies)
Check:
2(10) = 20 cents in dimes
4(5) = 20 cents in nickels
12(1) = 12 cents in pennies
Total = 52 cents
C^2= a^2 + b^2 a=b
34^2= a^2 + a^2
1156=2a^2
a^2=1156/2
a^2=578
a=24.04
The side length is 24.04
Or I got this also
Using the special triangle theorem , an isosceles triangle has a diagonal equal to the square root of 2 of the legs of the triangle. In this case, the length of the legs is 34/ sqrt of 2 or equal to 24.04 units . This rule is based on the Pythagorean theorem
If the length of each side = x.
By Pythagoras' Theorem:
x² + x² = 34²
2x² = 34²
x² = 34² / 2
x² = 578
x = √578
<span>x ≈ 24.04 inches
hope this helps
</span>
Answer:
57
Step-by-step explanation:
9+6(2^2+4)
Calculate 2 to the power of 2 and get 4.
9+6(4+4)
Add 4 and 4 to get 8.
9+6×8
Multiply 6 and 8 to get 48.
9+48
Add 9 and 48 to get 57.
57
