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OlgaM077 [116]
2 years ago
8

Nvm i got it lol sorry!

Mathematics
1 answer:
Dima020 [189]2 years ago
4 0
Lol that’s good to hear I’m glad
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If f(x)=4x-20 what is f(4)
Rudik [331]

Answer:

<h2>f(4) = -4</h2>

Step-by-step explanation:

f(x) = 4x - 20

f(4) → put x = 4 to the equation of the function:

f(4) = 4(4) - 20 = 16 - 20 = -4

3 0
3 years ago
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Nine less than a number is no more than 8 and is no less than 3.
snow_lady [41]
3 is less than or equal to x-9 is less than or equal to.

3<= x-9<=8


<= these mean less than or equal to.
hope I helped you!
3 0
3 years ago
Sin(a+b).cos(a-b) = sinacosa + sinbcosb
Rainbow [258]
Sin (A + B) = sin A cos B + cos A Sin B 
<span>Cos (A - B) = cos A cos B + sin A sin B </span>

<span>=> (SinACosB+ CosASinB) (CosACosB +SinASinB) </span>

<span>=>SinACosACos^2B+Sin^2ACosBSinB+Cos^2A... </span>

<span>=>SinACosA(Cos^2B+Sin^2B) +SinBCosB(Sin^2A+Cos^2A) </span>
<span>we know that Sin^2+Cos^2=1 </span>
<span>=>SinACosA(1)+SinBCosB(1) </span>
<span>=SinACosA+SinBCosB </span>
<span>Proved 

</span>
4 0
3 years ago
One number is 20 times another number. The product of the two numbers is 180. Write an equation and use it to find all pairs of
nadezda [96]
Y = 20x

y • x = 180

180/x = y

180/x = 20x

180 = 20x^2

x^2 = 6

x = + or - 3

Therefore y must equal + or - 60.
8 0
3 years ago
Read 2 more answers
Pls someone help i have conferences tomorrow and im failing
Nutka1998 [239]

Answer:

y = 2 that sign means equal to so its literally another way to write =

so to graph this inequality you graph 2 on the y axis thats it

Step-by-step explanation:

6 0
2 years ago
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