Answer:
1 = 62 degrees
2 = 90 degrees
3 = 62 degrees
Step-by-step explanation:
hope this helps! have a great day!
Plug 3 in for X in the equation.
3(3)^2 + 5(3) +25=
3(9) + 15 +25=
27+15+25=
42+25=
67
So when x=3, the value is 67
Answer:
28
Step-by-step explanation:
784 can be divided by two 4 times.
This means that there are two pairs of 2s that can come out the radical.
2*2 = 4.
then now we have 49 left inside and we know that this is 7 squared, meaning that there is a pair of 7 inside the radical.
7 comes out and now we have 7 times 4 which is 28.
First write an equation system based on the problem
We can write "<span>Bread and sugar cost 110 together" as
</span>∴ b + s = 110
We can write "<span>bread cost 100 more than sugar" as
</span>∴ b = 100 + s
<span>
Second, solve the equation system by subtitution method
Subtitute b with (100+s) in the first equation, and we'll find the value of s
b + s = 110
(100 + s) + s = 110
100 + 2s = 110
2s = 110 - 100
2s = 10
s = 10/2
s = 5
The cost of the sugar is 5</span>
