Answer:
v=6
Step-by-step explanation:
First let's simplify the equation so it will be easier to PEMDAS the equation later.
-7v+4(2-5v)=-154
-7v+8-20v=-154
-27v+8=-154
Now you must isolate the v variable. You do this by subtracting 8 first and then divide by -27.
-27v+8=-154
-27v=-162
v = 6
Answer:
x = 125
Step-by-step explanation:
Tangents from an external point to a circle are congruent , that is
CA = CB
Then Δ ABC is isosceles with base angles being congruent
∠ BAC = ∠ ABC =
=
= 55°
∠ ABC and x are adjacent angles on a straight line and sum to 180° , so
x = 180° - 55° = 125°
Then x = 125
Step-by-step explanation:
-9 + 16/7 = ?
First, find out what 16/7 would make in decimal form, by dividing 16 by 7 (Use a calculator if needed)
16 / 7 = 2.3 (In estimation)
So, now you have ' -9 + 2.3 '
= -6.7
Value of x for which the two points are on the line with the given slope (1,-1) and (x,7): undefined is
.
<u>Step-by-step explanation:</u>
Here we have to Find x so that the two points are on the line with the given slope (1,-1) and (x,7): undefined . Let's find out:
We know that for any two points given as
slope of line is determined by :
⇒ 
According to question we have two points as
∴
⇒ 
⇒ 
But slope is undefined which is only possible when denominator is zero i.e.
⇒ 
⇒ 
Therefore , Value of x for which the two points are on the line with the given slope (1,-1) and (x,7): undefined is
.
Answer:

Step-by-step explanation:
Because the leftmost triangle is a 45-45-90 isosceles right triangle, 
The rightmost triangle is a 30-60-90 triangle, and the side lengths are in the proportion
from shortest to longest. Therefore, 