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3 years ago

5(4n - 11) - 3n + 20 and 17n - 35 are equivalent expressions.(true or false)please exlplain with FULL SENTANCES

2 answers:

5 0

Yo has to distribute and add like terms
distributeiv propoerty
a(b+c)=ab+ac aka
a(b-c)=ab-ac

5(4n-11)-3n+20=17n-35
distribuet
5*4n=20n
5*11=55
20n-55-3n+20=17n-35
move like terms together
20n-3n+20-55=17n-35
20-3=17
20-55=35
17n-35=17n-35
true

kari74 [83]3 years ago

3 0

True. Because 5(4n-11)-3n+20 is 20n-55-3n+20 and when you add like terms together you get 17n-35 as your answer which is the same as 17n-35.

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An exponential relationship has a growth factor of3and y-intercept of 4.Evalute the function that represents the function that r

Murrr4er [49]

Answer:

$f(10)= 236196$

Step-by-step explanation:

Given

$(x,y) = (0,4)$ --- y intercept

$b = 3$ --- growth factor

Required

$f(10)$

An exponential function is represented as:

$y = ab^x$

$(x,y) = (0,4)$ means

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$4=a *1$

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So, we have:

$y = ab^x$

$y = 4(3)^x$

$f(x)= 4(3)^x$

When x is 10, the value of the function is:

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$f(10)= 4(3)^{10$

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3 years ago

What is the answer for -2(-3.4)= ?

Ronch [10]

Answer:

6.8

Step-by-step explanation:

negative 2 times negative 3 is -6.

negative 2 times negative 0.4 is -0.8.

add them together :)

4 0

3 years ago

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8a - 4b = 20<br>5a - 8b = 62<br><br>What are the values of a and b?

erastovalidia [21]

Answer:

a=2 , b= (-1)

Step-by-step explanation:

8a-4b=20/×(-2)

5a-8b=62

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5a-8b=62

now -8+8=0 right? so the only parameter that we have is a.

-16a+5a= -40+62

11a = 22/(÷11)

a=2

in order to find b, we will replace a with its value in one of the original equations (it doesn't matter which one you will choose).For instance, I chose the first one.

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bekas [8.4K]

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