MATH answer ..

#21

2029105

Solve this SIMPLE linear equation.

48+6+(15x+7)+36+7+(9x+2)-(14x+4)=439+84x-619-100-46-2x-4

#22

Wut? Ok uhhhh...2586?

18x9+4=

#23

166.
I guess it's allowed not to only use numbers.
How many percents is 15 out of 828?

#24

124

:P

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Question:

Answer:

#25

Solving Gab's because above message is literally just a riddle, not a math equation.

my problem:
solve with quadratic formula
x^2 + 12x = -20.

#26

-2,-10?
------------------------------------
Use the slope-intercept formula and then solve.

Problem: Find an equation of a line that has a slope of 6 and passes through the point (-3,5)

#27

To find the equation of the line when you are given the slope and a point would be point-slope form which is...
y-y1 = m(x-x1)

m= slope
point= (x1, y1)
6x + y = -77

-6x + y = -67

-6x + y = 77

6x + y = 17

Uhmm

So...
m= -6
x1= -12
y1= 5

Plug in...
y-5 = 6(x- -12)
y-5 = 6(x+12)

Distribute the 6...
y-5 = 6x+72

Combine like terms and get x and y on the same side...
y - 6x = 77
OR
-6x + y = 77

..1,000x5,000+26-42x105= <-- thats pretty easy the person in the bottem is gonna get it so easily

Dernière modification le

#28

Do I evaluate it using GEMDAS or just solve it from left to right. If left to right:

1,000x5,000 is 5,000,000 + 26 is 5,000,026 minus 42 is 4,999,9984 times 105 is 524,998,320
so easy, i didnt use a calculator..

Solve using GEMDAS:

7+6x7+6x7+6x7+6x7+6x7-6x7+6

There is no use of using a calculator, because you have to solve it a different way.

VV yes, it is called PEMDAS, but in fifth grade they said use GEMDAS instead of PEMDAS

Dernière modification le

#29

Isn't it called PEMDAS? lmfao

42+42+42+42+42+42+6+7

48+48+48+13

96+61= 157

----------
this is basic algebra. you gotta multiply the binomials with foil

( x + 6 )( x - 4 )

#30

DUN NO

2x2

9

#31

wait 2x2? ._. isnt that 4? WHY IS THEIR A NINE!?! I IZ CONFUSED

100x135-62x12+52x26-2=?

#32

4194006. I used a calculator. The second time.

2 + 2 = _ x 76 = _ + 5,908 = _ x 29 = _

#33

180148?

-138758400x45+78=?

#34

-138758400*45+78
=-6244128000+78
=-6244127922

I'm just going to make a random question and hope it doesn't end up in a fraction.
Find x.
89x+456x*90-(25-90)=0

#35

(I can't believe someone made a forum game out of this)
89x+456x X 90-65=0 [I'm just assuming *=X bc I dun get that sign]
536x X 35 =0
536x=0
x=0

2cosx=3pie/4 Find x ;3

#36

2π ? hopefully i should have this right as i was the best in class at math i would be ashamed if i got that wrong.

i learned this qeustion at school.

24x2+25x−47

ax−2

=−8x−3−

53

ax−2

is true for all values of x≠

2

a

, where a is a constant.

What is the value of a?

Dernière modification le

#37

AAAAAAAAAAAAAAAHHHHHHHH THIS FORMATTING IS TERRIBLE I DID HALFWAY UNTIL I REALISED I MISSED THE AX-2 IN THE EQUATION
also is 24x2 just 24x^2?
Original qn:
24x2+25x−47ax−2=−8x−3−53ax−2 is true for all values of x≠2a, where a is a constant. What is the value of a?

8x^2+11x+2ax+1=0
8x+11+2a=-1/x
a=4x+11/2+1/2x

a≠33/4a+11/2
a≠22/-29
erm
a=(-∞, 22/-29)∪(22/-29, ∞)
???
idk im confused

if f(x)=56x^3+7x+5x^-1, find f''(x)

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