9514 1404 393
Answer:
41.4
Step-by-step explanation:
The Law of Cosines tells you ...
a² = b² +c² -2bc·cos(A)
where sides a, b, c are opposite angles A, B, C, respectively. Filling in the given numbers, you have ...
a² = 30² +26² -2·30·26·cos(95°)
a² ≈ 1711.96
a ≈ √1711.96 ≈ 41.38
The length of BC is about 41.4 units.
Answer:
The vertex is (-1, 3)
Step-by-step explanation:
The form this is in is called vertex form. We can express the equation using its base form.
y = a(x - h)^2 + k
Now we can identify the vertex as (h, k). By looking at the equation, we can see h is equal to -1 and k is equal to 3.
Answer:
0
Step-by-step explanation:
Plug in the corresponding numbers to the corresponding variables. Note that:
y = 9
z = 0
Plug in 9 for y, 0 for z.
(2z)/y = (2(0)/(9) = (0)/9 = 0
0 is your answer.
~
Answer:
No.
Step-by-step explanation:
The logarithm of a number to the base b of a certain number is the exponent
to which the base b is raised to equal the given value.
So say we have logb y = a, then
y = b^a
So if y = 0 then
0 = b^a
If b is a positive number then there is no value of a that makes y = 0.
for example y = b^0 = 1, y = b^1 = b etc.
Answer: 27.509, 27.56, 27.599, 27.5998
Step-by-step explanation:
