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Aloiza [94]
3 years ago
12

-3(4u-v)-5(-v+3u) For 20 points

Mathematics
2 answers:
il63 [147K]3 years ago
5 0
-27u + 8v is the answer
natita [175]3 years ago
4 0

Answer:

−27u + 8v

Explanation:

−3(4u − v) − 5( − v + 3u)

[ Distribute ]

= (−3)(4u) + (−3)(−v) + (−5)(−v) + (−5)(3u)

= −12u + 3v + 5v + −15u

[ Combine Like Terms ]

= −12u + 3v + 5v + −15u

= (−12u + −15u) + (3v + 5v)

= −27u + 8v

- PNW

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Part 1:
Gnom [1K]
P = 2(L + W)
L = 4/3W

P = 2(4/3W + W) <=== part 1 is D

when P = 28
28 = 2(4/3W + W)
28/2 = 4/3W + 3/3W
14 = 7/3W
14 / (7/3) = W
14 * 3/7 = W
42/7 = W
6 = W....width is 6 inches

L = 4/3W
L = 4/3(6)
L = 24/3
L = 8....length is 8 inches

A = L * W
A = 8 * 6
A = 48 in^2 <==== part 2

7 0
3 years ago
Match each term with the appropriate example
brilliants [131]

Answer:

1.   Absolute value :  d.  | - 7| = 7

2.  All real numbers :  b.  3x = 3x

3.  x = -5  : c.  5x = -25

4.  No solution : a.  |2x| = -10

5.  Adding the opposite to both sides of the equation. : e.  Canceling

Step-by-step explanation:

1.   Absolute value :  d.  | - 7| = 7

The absolute value is considered the distance to 0... so if there's a negative sign in the value, the negative sign disappears.

2.  All real numbers :  b.  3x = 3x

If we divide both sides by 3, we have x = x, which will always be true.

3.  x = -5  : c.  5x = -25

If we multiply each side by 5, we have 5(x) = 5(-5) thus 5x = -25

4.  No solution : a.  |2x| = -10

The result of an absolute value cannot be a negative number.  So, that has no solution since there's no value of x that would make this true.

5.  Adding the opposite to both sides of the equation. : e.  Canceling

If you have for example (x = -5) and you add 5 on both sides, you cancel the value on the right side... (becomes x + 5 = 0).

8 0
3 years ago
What is 12 x 34 /49 x 45 + 58 - 67?
AVprozaik [17]

Answer: 365.6938775510204081602040816326530612245

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Step-by-step explanation: Multiply 12 x 34 you get 408

And then multiply each number. You can even use a calculator.

4 0
3 years ago
Finding the missing angles ?
bazaltina [42]

Answer:

1. 46

2. 46

3. 134

4. 134

5. 46

6. 46

7. 134

This is going from top right, left to right.

8 0
2 years ago
A hotel reservation number consists of 5 digits, followed by 1 letters, followed by 3 digits. How many different reservation num
sasho [114]

There are 10 possible digits and 26 possible letters.

To find the answer to this problem we have to multiply 9 as many digits has the hotel reservation number and 26 as many letters it has.

It means:

9\cdot9\cdot9\cdot9\cdot9\cdot26\cdot9\cdot9\cdot9=1,119,214,746

There are 1,119,214,746 possible reservation numbers.

6 0
1 year ago
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