Answer:
708 books on each shelf!!?!!
Step-by-step explanation:
1,845 + 4,527 = 6372
6,372 ÷ 9 = 708
If I am right, please give me brainliest!!!!
- Hermionia
Answer:
square root of 7
Step-by-step explanation:
Each right angle triangle has 3 sides known as the opposite, adjacent and hypotenuse sides. The relationship between these 3 sides is as defined by pythagoras theorem which states that
a² + b² = c²
where a and b are the lengths of the opposite and adjacent sides (in no particular order) and c is the length of the hypotenuse side.
Given that the leg of a right triangle is 3 units and the hypotenuse is 4 units, it means that
a² + 3² = 4
where a is the length in units, of the other leg of the triangle
a² = 4² - 3
a² = 16 - 9
= 7
a = √7
Step-by-step explanation:
She needs to baby sit for 5 hours = 5 x 110 = 550
Answer:
x=-3.5, x=13.5
Step-by-step explanation:
-10x-47=-x^2+1
<u>switch sides</u>
-x^2+1=-10x-47
<u>add 47 to both sides</u>
-x^2+1+47=-10x-47+47
<u>simplify</u>
x^2+48=-10x
<u>add 10x to both sides</u>
-x^2+48+10x=-10x+10x
<u>simplify</u>
-x^2+10x+48=0
<u>solve with the quadratic formula</u>
a=-1, b=10, c=48:
x=-10±√10²-4(-1)48/ 2(-1)
(you can plug this into a calculator or use PEMDAS to solve)
(solve it twice: use - once, and + the second time)
<u>answer:</u>
x=-3.5, x=13.5
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