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3 years ago

Without actually writing the following explain how to expand (x+3)^7 using the binomial theorem

Mathematics

1 answer:

padilas [110]3 years ago

4 0

Answer:

$x^{7} + 3^{7}$

Step-by-step explanation:

because you put each thing to the power

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3 years ago

If the graph of the linear equation ax-8y=15 has an x-intercept at (3,0), then what is the value of a?

mart [117]

Ax-8y=15
a(3)-8(0)=15
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3 years ago

Select the correct answer from each drop-down menu.

vazorg [7]

Answer:

Step 1: Distribute $-2$ to $5x$ and $8$

Step 2: Subtract from both sides of the equation $6x$

Step 3: Add to both sides of the equation $16$

Step 4: Divide both sides of the equation by $-16$

Step-by-step explanation:

Step 1: Apply the Distributive Property. Then you must distribute $-2$ to $5x$ and $8$

Then:

$-2(5x+8)=14+6x\\\\-10x-16=14+6x$

Step 2: You must apply the Subtraction property of Equality and subtract $6x$ from both sides of the equation. Then:

$-10x-16-6x=14+6x-6x\\\\-16x-16=14$

Step 3: You must apply the Addition property of Equality and add $16$ to both sides of the equation. Then:

$-16x-16+16=14+16\\\\-16x=30$

Step 4: You must apply the Division property of Equality and divide both sides by $-16$ . Then:

$\frac{-16x}{-16}=\frac{30}{-16}\\\\x=\frac{30}{-16}\\\\x=-\frac{15}{8}$

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3 years ago

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frosja888 [35]

The answer is 2.646 hope it helps

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3 years ago

A girl's feet are negative 4/5 yards from the surface of a pool. A boy's feet are negative 2/5 yards from the surface of the poo

sineoko [7]

Answer:

The boy's feet are closer to the surface of the pool because negative 4 over 5 < negative 2 over 5.

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3 years ago