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3 years ago

Pls plsss help with math, it’s easyyy!! explanation needed!!

Mathematics

2 answers:

zimovet [89]3 years ago

7 0

Answer:

C. x = -12 and x = 2

Step-by-step explanation:

-x²-10x+24=0 Original equation

x²+10x-24=0 Divide everything by -1

(x+12)(x-2)=0 Factor it out

x=-12,2 Solve so that the inside of the parentheses equals 0

astraxan [27]3 years ago

4 0

(-X+2)(x+12). x=2 and -12. Answer c

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What is the inverse of this function?

Andreas93 [3]

Step-by-step explanation:

f(x) = y = -1/2 × sqrt(x + 3), x >= -3

-2y = sqrt(x + 3)

4y² = x + 3

x = 4y² - 3

and now we need to rename x to y and y to x to make it a "normal" function :

y = 4x² - 3

since in the original function x >= -3, this gave us y <=0.

and therefore (remember the x of the inverse function actually stands for the y of the original function) the limit for the inverse function is x <= 0.

so, again, the full answer is

f^-1(x) = 4x² - 3, x <= 0

8 0

2 years ago

The solution set for -18 < 5x - 3 is

tensa zangetsu [6.8K]

Answer:

Hope this helps

Step-by-step explanation:

6 0

3 years ago

ASAP ANSWERRR If a sequence is defined recursively by f(0)=4 and f(n+1)= -3f(n)+1 for n≥0, the f(3) is equal to

LenaWriter [7]

Idk maybe ask an adult

3 0

3 years ago

If sin(x) = cos(y) for acute angles x and y, how are the angles related?

Vesnalui [34]

Answer:

b. complementary

Step-by-step explanation:

-Complementary angles are angles that add up to 90°.

-These are usually the two acute angles in the right triangle.

#To verify, lets take the two angles 30° and 60°:

$Cos \ 60\textdegree=0.5\\\\Sin \ 30\textdegree=0.5\\\\\therefore Sin \ 30\textdegree=Cos \ 60 \textdegree=0.5$

#We can reverse as:

$Sin \ 60\textdegree=0.86603\\\\Cos \ 30\textdegree=0.86603\\\\\therefore Sin \ 60\textdegree=Cos \ 30\textdegree=0.86603$

Hence, two angles are said to be complimentary if they sum up to 90°.

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3 years ago

Please help im very confused

joja [24]

Download the app photo math, it will give u all the answers for those and shows the work

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3 years ago