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Darya [45]
4 years ago
14

-4(4x-4) + 2x - 4 = -30

Mathematics
1 answer:
s344n2d4d5 [400]4 years ago
5 0

Answer:

x=3

Step-by-step explanation:

-4(4x-4)+2x-4+4=-30+4

-4(4x-4)+2x=-26

-14x+16=-26

-14x+16-16=-26-16

-14x=-42

-14x/-14=-42/-14

x=3

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CaHeK987 [17]
Carson needed pencil and erasers, but the total amount can not be over 40. Pencils were $4 and erasers were 5$. How much pencils and erasers can he buy without spender over $80
7 0
3 years ago
Please please help <br><br> Given the function f(x)=1/3x*2-3x+5 determine the inverse relation
yuradex [85]

The inverse relation of the function f(x)=1/3x*2-3x+5 is f-1(x) = 9/2 + √(3x + 21/4)

<h3>How to determine the inverse relation?</h3>

The function is given as

f(x)=1/3x^2-3x+5

Start by rewriting the function in vertex form

f(x) = 1/3(x - 9/2)^2 -7/4

Rewrite the function as

y = 1/3(x - 9/2)^2 -7/4

Swap x and y

x = 1/3(y - 9/2)^2 -7/4

Add 7/4 to both sides

x + 7/4= 1/3(y - 9/2)^2

Multiply by 3

3x + 21/4= (y - 9/2)^2

Take the square roots

y - 9/2 = √(3x + 21/4)

This gives

y = 9/2 + √(3x + 21/4)

Hence, the inverse relation of the function f(x)=1/3x*2-3x+5 is f-1(x) = 9/2 + √(3x + 21/4)

Read more about inverse functions at:

brainly.com/question/14391067

#SPJ1

5 0
2 years ago
If anybody remembers and knows how to do this plz answer all the questions correctly thx!
Romashka-Z-Leto [24]

Answer:

4. 1/4 5. 5/6 6. 2/3 7. 3/4 8. 9/10 9. 6/7

Step-by-step explanation:

I'm pretty sure its right

4 0
4 years ago
Read 2 more answers
The perimeter of a rectangular garden is 42 feet. The length of the garden is 5 feet more than twice the width. Find the length
zlopas [31]

Answer:

W=5.3, l= 15.6

Step-by-step explanation:

Perimeter of a rectangle p=2(l+w)

P= 42

W= x

L= 5+2x therefore 42=2(5+2x+x)

42=10+6x , 32=6x

Make x subject of formula

X=32/6 x=5.3 there for w=5.3

Where L= 5+2x ; L=5+2(5.3)

L therefore = 15.6

3 0
3 years ago
HELP FAST PLESSS Calvin's new car gets 35 miles per gallon. What is the equation that represents y, the total miles
Semmy [17]

Answer:

y = 35x

Step-by-step explanation:

3 0
4 years ago
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