Since b = c, the angles B and C also equal
so you get
180 - 45 = 135
135/2 = =67.5 for each angle
now we know 2 sides and all 3 angles, use the law of sines to find a
b/sin B = a/sin A
4/(sin 67.5) = a/(sin 45)
a = 4(sin 45)/(sin 67.5)
a^2 = (4(sin 45)/(sin 67.5))^2
a^2 = 9.37
Answer is C
Answer:
(B) 7.1 is the estimated square root of 50
Step-by-step explanation:
A. √50 = √2 √25
= 5√2.
Jaclyn did not take the square root of 2.
B. We estimate the square root of 2.
Trial and improvement:
It must lie between 1 and 2 so we try 1.5:
1.5 * 1.5 = 2.25
Its < 1.5 so try 1.4
1.4 * 1.4 = 1.96.
So it is a little above 1.4.
Try 1.45:
1.45 * 1.45
1.45
* 1.45
-------
725
5800
14500
2.1025
= 2.1025.
- this is above 2 so the answer is between 1.40 and 1.45 but closer to 1.4.
A good estimate is 1.42
So the square root of 50 is about 5*1.42 = 7.1
Answer: Leading Coefficient: 45
Step-by-step explanation:
7x + 5x²9x³ - 10=
7x+5*9*x²*x³-10=
7x+45
-10=
7x+45x^5-10=
45x^5+7x-10 ==> Leading Coefficient: 45
Answer:
(-1, -2)
Step-by-step explanation:
Plug (x-1) for y in the first equation:
-4x + 3(x-1) = -2
Simplify:
-4x + 3x - 3 = -2
-x = 1
x = -1
Plug in x=-1 into the second equation:
y = (-1) - 1
y = -2
