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3 years ago

11

Use the expression (a+b)(c-d)+9e(a+b)(c−d)+9eleft parenthesis, a, plus, b, right parenthesis, left parenthesis, c, minus, d, rig

ht parenthesis, plus, 9, e to find an example of each kind of expression.
Kind of expression
Example

1 answer:

jek_recluse [69]3 years ago

8 0

Answer:

Difference: ¨c-d¨ variable: ¨a¨ coefficient: ¨9¨

Step-by-step explanation:

Just trust me bro

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The blank of a number says how many times to use that number ia a multiplication

Evgesh-ka [11]

I'm pretty sure the answer is exponent since it tells you how many times to multiply the number beside it by itself.

Example:

${3}^{4}$
It is NOT 3 × 4 = 12

It is 3 × 3 × 3 × 3 = 9 × 3 × 3 = 9 × 9 = 81

~~

I hope that helps you out!!

Any more questions, please feel free to ask me and I will gladly help you out!!

~Zoey

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3 years ago

What's 5 + 10? Honestly I graduated and just wanted to give away my points. Have fun.

Rainbow [258]

Answer:

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6 0

3 years ago

Read 2 more answers

The difference of two numbers is more than 12,and one of the numbers is 3

klio [65]

X+y = 12
x-y = 3
x = 3+y

Substitute it in 1st equation,
3+y+y=12
2y = 9
y = 4.5

Substitute it in 1st eq.,
x = 12-4.5 = 7.5

So, the two numbers are 7.5 & 4.5

Hope this helps!

6 0

3 years ago

At a football game there were 1200 spectators on Wednesday and 4.8 x 10^3 on Friday. How many times as much was the number of sp

Alja [10]

Answer:

3600

Step-by-step explanation:

4.8x10^3-1200=3600

3 0

2 years ago

A beacon is flashing on top of a 50 foot tower. A 6 foot tall man walks constantly away from the tower at 5 feet/sec. At the ins

Viefleur [7K]

Answer: $\frac{253}{44}$

Step-by-step explanation:

ignore the "at the instant the man is 30 feet away" part, set it as X and the man's shadow as Y.

Similar triangles so we can do $\frac{50}{x+y} = \frac{6}{y}$ .

Solve for it we get 44y = 6x

Differentiate relative to time t, we get 44y' = 6x'.

change in x (x') is equal to 5. And we get the answer y' = $\frac{33}{44}$ .

the $\frac{33}{44}$ ft/sec is the rate of which the length of the shadow is changing. add 5 to it for the rate of the tip of his shadow moving away from the tower.

7 0

2 years ago