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yarga [219]
3 years ago
6

Last question pls help me

Mathematics
1 answer:
aalyn [17]3 years ago
6 0

Answer:

Step-by-step explanation:

684 dollars

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Factor each polynomial<br> 4z^2+4z-15
Mkey [24]

Answer:

(2z + 5)(2z - 3)

Step-by-step explanation:

4z² + 4z - 15

4z² + 10z - 6z - 15

2z (2z + 5) - 3 (2z + 5)

(2z + 5)(2z - 3)

7 0
2 years ago
Read 2 more answers
Solve the system of equations. −9y+4x−20=0−7y+16x−80=0\begin{aligned} &amp;-9y+4x - 20=0 \\\\ &amp;-7y+16x-80=0 \end{aligned} ​
gulaghasi [49]

Answer:

  • (x, y) = (5, 0)

Step-by-step explanation:

\begin{aligned} &-9y+4x - 20=0 \\ &-7y+16x-80=0 \end{aligned}

Subtract 4 times the first equation from the second:

  (-7y +16x -80) -4(-9y +4x -20) = (0) -4(0)

  29y = 0 . . . . . simplify

  y = 0 . . . . . . . .divide by 29

  4x -20 = 0 . . . . substitute 0 for y in the first equation

  x -5 = 0 . . . . . .divide by 4

  x = 5 . . . . . . . . add 5

The solution to this system is (x, y) = (5, 0).

7 0
3 years ago
Can any one help me solve this ?
Lana71 [14]

Step 1. Take out the constants

(4 * 7)xx^2

Step 2. Simplify 4 * 7 to 28

28xx^2

Step 3. Use the Product Rule

28x^1 + 2

Step 4. Simplify 1 + 2 to 3

28x^3

3 0
3 years ago
Seven increased by the product of two numbers
k0ka [10]
Yu add the products of the two numbers by 7
4 0
3 years ago
What is 34 1/4 - 2 7/8
BlackZzzverrR [31]
The answer is 31 3/8
4 0
3 years ago
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