Answer:
x°=25° y=5
Step-by-step explanation:
x°=
The measure of two angles is given. (65° and 90°)
90°+65°=155°
180°-155°=25°
y=
Use the Pythagorean theorem. (A²+B²=C²)
3²+4²=25
√5=25 (5²=25)
<u>ANSWER: </u>
If x = 
and x = -3 are the roots of the equation, then values of a and b are 3, -6
<u>SOLUTION:
</u>
Given, quadratic equation is 
and its roots are -3 ,
We know that, for any quadratic equation of form 
with roots 
then,
Sum of roots 
= 
Product of roots ( 
= 
Now, for given quadratic equation 
= -3 and 
=
hence Sum of roots = 
on solving we get "a" = 3
Now product of roots = 
b = -6
hence, the values of a and b are 3, -6.
We have that
y=sin x
for x=2theta
<span>theta = pi/4 radians
so
x=2*pi/4-----> x=pi/2
using a graph tool
see the attached figure
for x=pi/2
y=sin pi/2------> y=1
</span>
the solution is1
Answer:
The price was reduced by 25%
Step-by-step explanation:
Not sure how to go step by step on this, because it's kinda obvious once you think about it a bit. You need to find what percent of 40 that 10 equals (if that makes sense). So really it's just what percent of 40 equals 10? and since 10 is one fourth of forty, 1/4, then you convert that to percent: 25% (sorry if this made no sense, i'm not very good at explaining things)
Answer:
1. If x=5, 3*5=15, 15*15=225 + y (3) = 228.
2. If y=4, then 10*4 = 40, 4^2 is 16, so 40 + 16 is 56.
I might be wrong, but the first one you answered, x^2, x= 1/2, I think that is wrong. when something is squared, you don't go, "Oh, well since 1/2 equals 1, that's the answer." The way to figure out something like this is... 1/2 times 1/2, which is .25, or 1/4. Another example: 3^5 . The way to find this out is 3*3*3*3*3 = 243. But you don't go 3*5, because that answer would be 15, which is not correct.
