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Levart [38]
2 years ago
5

Are the expression 8a^2-4b+7a^2 and 5(3a^2-2b)+6b equivalent

Mathematics
1 answer:
Alchen [17]2 years ago
7 0
8a² - 4b + 7a² and 5(3a² - 2b) + 6

First, simplify the expressions.

1) 8a² - 4b + 7a²

Add like terms.

15a² - 4b

2) 5(3a² - 2b) + 6

Distribute 5 by multiplying the number to each terms inside the parenthesis.

15a² - 10b + 6

15a² - 4b ≠ 15a² - 10b + 6

Solution: The expressions are not equivalent.
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2. David bought milk for $1.50, cream cheese for $ 1.99 and butter for $ 5.99 What is the cost of the milk and the butter?
scoundrel [369]

Answer:

You would get $40.52 back.

Step-by-step explanation:

1.50+1.99+5.99

$9.48

50-9.48=40.52

You would get $40.52 back.

4 0
3 years ago
Read 2 more answers
The nth term of a sequence is -3-3n what is the 6th term
Serga [27]

Answer:

-21

Step-by-step explanation:

if for s(n) = -3-3n

then s(6) = -3-3*6 = -3-18 = -21

8 0
3 years ago
I need help with this please!!!
Andru [333]

Answer:

U = \frac{TE}{3}

Step-by-step explanation:

Given

T = \frac{3U}{E}

Multiply both sides by E to clear the fraction

TE = 3U ( divide both sides by 3 )

\frac{TE}{3} = U

5 0
3 years ago
WRITE AN EQUATION FOR EACH PAIR OF ANGLES GIVEN AND SOLVE FOR X!
professor190 [17]

Answer:

What are the angles I dont see them :/

Step-by-step explanation:

what are they

8 0
3 years ago
Read 2 more answers
The sum of two numbers is 95. If the larger is increased by twice the smaller, the result is 120. Find the numbers.
adelina 88 [10]
Hello!

You can make two expressions based on what you know

let x equal the larger number
let y equal the smaller number

x + y = 95
x + 2y = 120

We can use elimination to get rid of x

You can subtract the two equation to get rid of x

-y = -25

Since y is negative we can multiply both sides by -1 to make y positive

y = 25

Now we can put this into one of the other equations to find x

x + 25 = 95

subtract 95 from both sides

x = 70

The answers are 70 and 25

Hope this helps!
3 0
2 years ago
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