Answer:
8+n/3
Step-by-step explanation:
Answer: 7 and 8
<u>Step-by-step explanation:</u>
Let x represent the first number, then x + 1 is the other number.
(x)² + (x + 1)² = 113
x² + x² + 2x + 1 = 113 <em>expanded (x + 1)²</em>
2x² + 2x + 1 = 113 <em>added like terms</em>
2x² + 2x - 112 = 0 <em>subtracted 113 from both sides</em>
x² + x - 56 = 0 <em> divided both sides by 2</em>
(x + 8) (x - 7) = 0 <em>factored polynomial</em>
x + 8 = 0 x - 7 = 0 <em>applied zero product property</em>
x = -8 x = 7 <em> solved for x</em>
↓
not valid since the restriction is that x > 0 <em>(a positive number)</em>
So, x = 7 and x + 1 = (7) + 1 = 8
Answer:
Remember, here -- with addition -- the parentheses are just extras there to throw you off track!
We can remove the parentheses:
7a + 9 + 4a - 7
Now simplify!
7a + 4a + 9 - 7
11a + 2
Answer:
B. 50.24
Step-by-step explanation:
to find the area of a circle you need to use the formula
a=r²π
since the radius is 4 we put that into the equation, lets use 3.14 for pi
a=(4)²×3.14
always do exponents first
a=16×3.14
a=50.24
Answer:
X=5 the angle is 76 degrees
Step-by-step explanation:
The bottom angles are corresponding. So 52+52=104, so you need 76 more degrees. Then simple math to caculate x.
