Think of the equation as an equation for a line y = m x + b where in this case C = 5 9 ( F − 32 ) or C = 5 9 F − 5 9 ( 32 ) You can see the slope of the graph is 5 9 , which means that for an increase of 1 degree Fahrenheit, the increase is 5 9 of 1 degree Celsius. C = 5 9 ( F ) C = 5 9 ( 1 ) = 5 9 Therefore, statement I is true. This is the equivalent to saying that an increase of 1 degree Celsius is equal to an increase of 9 5 degrees Fahrenheit. C = 5 9 ( F ) 1 = 5 9 ( F ) ( F ) = 9 5 Since 9 5 = 1.8, statement II is true. The only answer that has both statement I and statement II as true is D, but if you have time and want to be absolutely thorough, you can also check to see if statement III (an increase of 5 9 degree Fahrenheit is equal to a temperature increase of 1 degree Celsius) is true: C = 5 9 ( F ) C = 5 9 ( 5 9 ) C = 25 81 ( which is ≠ 1 ) An increase of 5 9 degree Fahrenheit leads to an increase of 25 81 , not 1 degree, Celsius, and so Statement III is not true. The final answer is D. Question 2 The equation 24 x 2 + 25 x − 47 a x − 2 = − 8 x − 3 − 53 a x − 2 is true for all values of x ≠ 2 a , where a is a constant. What is the value of a ? A) -16 B) -3 C) 3 D) 16 ANSWER EXPLANATION: There are two ways to solve this question. The faster way is to multiply each side of the given equation by a x − 2 (so you can get rid of the fraction). When you multiply each side by a x − 2 , you should have: 24 x 2 + 25 x − 47 = ( − 8 x − 3 ) ( a x − 2 ) − 53 You should then multiply ( − 8 x − 3 ) and ( a x − 2 ) using FOIL. 24 x 2 + 25 x − 47 = − 8 a x 2 − 3 a x + 16 x + 6 − 53 Then, reduce on the right side of the equation 24 x 2 + 25 x − 47 = − 8 a x 2 − 3 a x + 16 x − 47 Since the coefficients of the x 2 -term have to be equal on both sides of the equation, − 8 a = 24 , or a = − 3 . The other option which is longer and more tedious is to attempt to plug in all of the answer choices for a and see which answer choice makes both sides of the equation equal. Again, this is the longer option, and I do not recommend it for the actual SAT as it will waste too much time. The final answer is B.
This the funniest shit I’ve watched in a long time 🤣🤌🏻
🙏 Jay is quite a character 😂
Im looking forward :D
Same here!
Definitely coming along with the videos! I'm sure the car will tear it up a few time at mid pond then you'll be on to the next 😂
super stoked. hopefully I get my hands on it
If you did the wiring it would be golden!
It definitely looks to have potential
There’s something here forsure!
What brand is that electric gauge on the 240
I’m pretty sure it’s based off the “stacked” cluster but I’ll find out the brand when I pull it out!
how much? i like the sound, pls more content of this ;-)
This car will be getting into the shop and a quick overhaul!
Think of the equation as an equation for a line
y
=
m
x
+
b
where in this case
C
=
5
9
(
F
−
32
)
or
C
=
5
9
F
−
5
9
(
32
)
You can see the slope of the graph is
5
9
, which means that for an increase of 1 degree Fahrenheit, the increase is
5
9
of 1 degree Celsius.
C
=
5
9
(
F
)
C
=
5
9
(
1
)
=
5
9
Therefore, statement I is true. This is the equivalent to saying that an increase of 1 degree Celsius is equal to an increase of
9
5
degrees Fahrenheit.
C
=
5
9
(
F
)
1
=
5
9
(
F
)
(
F
)
=
9
5
Since
9
5
= 1.8, statement II is true.
The only answer that has both statement I and statement II as true is D, but if you have time and want to be absolutely thorough, you can also check to see if statement III (an increase of
5
9
degree Fahrenheit is equal to a temperature increase of 1 degree Celsius) is true:
C
=
5
9
(
F
)
C
=
5
9
(
5
9
)
C
=
25
81
(
which
is
≠
1
)
An increase of
5
9
degree Fahrenheit leads to an increase of
25
81
, not 1 degree, Celsius, and so Statement III is not true.
The final answer is D.
Question 2
The equation
24
x
2
+
25
x
−
47
a
x
−
2
=
−
8
x
−
3
−
53
a
x
−
2
is true for all values of
x
≠
2
a
, where
a
is a constant.
What is the value of
a
?
A) -16
B) -3
C) 3
D) 16
ANSWER EXPLANATION: There are two ways to solve this question. The faster way is to multiply each side of the given equation by
a
x
−
2
(so you can get rid of the fraction). When you multiply each side by
a
x
−
2
, you should have:
24
x
2
+
25
x
−
47
=
(
−
8
x
−
3
)
(
a
x
−
2
)
−
53
You should then multiply
(
−
8
x
−
3
)
and
(
a
x
−
2
)
using FOIL.
24
x
2
+
25
x
−
47
=
−
8
a
x
2
−
3
a
x
+
16
x
+
6
−
53
Then, reduce on the right side of the equation
24
x
2
+
25
x
−
47
=
−
8
a
x
2
−
3
a
x
+
16
x
−
47
Since the coefficients of the
x
2
-term have to be equal on both sides of the equation,
−
8
a
=
24
, or
a
=
−
3
.
The other option which is longer and more tedious is to attempt to plug in all of the answer choices for a and see which answer choice makes both sides of the equation equal. Again, this is the longer option, and I do not recommend it for the actual SAT as it will waste too much time.
The final answer is B.
I couldn’t agree more
This will be fine. Everything is fine. Nissan with a Toyota engine and questionable wiring. What could go wrong.
Definitely coming along with the videos! I'm sure the car will tear it up a few time at mid pond then you'll be on to the next 😂
You know we “have” to test them out when we are done lol