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djyliett [7]
3 years ago
5

Expand 3(n + 7) show FULL work

Mathematics
1 answer:
Brrunno [24]3 years ago
7 0

Answer:

3n + 21

Step-by-step explanation:

3(n + 7)

3n + 21

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A scarf takes 20 feet of yarn to make. If 1 foot = 12 inches, how many inches does it take to make the scarf
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240

Step-by-step explanation:

20 times 24 is 240

20 x 24 = 240

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OLEGan [10]

Answer:

r = 13

Step-by-step explanation:

The first step is to find b from y=mx=b using m=4/3 and (-4,8)

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After solving the equation, b will equal -16/3 making the final equation be

y=\frac{4}{3} x-\frac{16}{3}

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7 0
3 years ago
I need someone to help me solve this
andrezito [222]

Answer:

see explanation

Step-by-step explanation:

Calculate C by adding corresponding components of A + B

C = \left[\begin{array}{ccc}4\\-7.5\\\end{array}\right] + \left[\begin{array}{ccc}-2.5\\5\\\end{array}\right]

= \left[\begin{array}{ccc}4-2.5\\-7.5+5\\\end{array}\right]

= \left[\begin{array}{ccc}1.5\\-2.5\\\end{array}\right]

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Step-by-step explanation:

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