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3 years ago

Which binomial is a factor of 9x^2-64

2 answers:

5 0

This is an example of a factor pattern called the Difference of Two Squares.

$A^2-B^2=(A+B)(A-B)$

What is playing the role of A? What do you square to get $9x^2$ ? That would be $3x$ .

What is playing the role of B? What do you square to get 64? That would be 8.

Your expression factors as $(3x+8)(3x-8)$

RSB [31]3 years ago

5 0

Answer:A

Step-by-step explanation:

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Which relation is a function?

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Answer:

1. yes

2. yes

3. no

4. no

5. yes

Step-by-step explanation:

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3 years ago

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What is the value of x?

trapecia [35]

3/4 = x / 7.5
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3 years ago

Mickey and Donald earn $53 weekend after taxes Mickeys share is seven dollars greater than Donald's how much does Donald earn ea

igor_vitrenko [27]

Donald earns $23 each weekend and Mickey earns $30.

Step-by-step explanation:

Given,

Money earned by Mickey and Donald = $53

Let,

Share of Mickey = x

Share of Donald = y

According to given statement;

x+y=53 Eqn 1

x = y+7 Eqn 2

Putting value of x from Eqn 2 in Eqn 1

$(y+7)+y=53\\y+7+y=53\\2y=53-7\\2y=46$

Dividing both sides by 2

$\frac{2y}{2}=\frac{46}{2}\\y=23$

Putting y=23 in Eqn 2

$x=23+7\\x=30$

Donald earns $23 each weekend and Mickey earns $30.

Keywords: linear equation, substitution method

Learn more about linear equations at:

#LearnwithBrainly

8 0

4 years ago

Spends at most 30, buys boxes of crayons that cost 2 per box, also buys a poster for 5. Wants to know how many boxes of crayons

My name is Ann [436]

Answer:

for 15 crayons box she can spend

Step-by-step explanation:

The computation of the number of crayons for which she can spend is shown below:

Given that

She can spend $30

And, the cost is 2 per box

So, for the number of crayons for which she can spend is

= $30 ÷ 2

= 15 crayons box

Hence, for 15 crayons box she can spend

The same would be relevant

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3 years ago

Alex has 7 dimes and three Nickels what fraction of the coins are dimes.

sukhopar [10]

7/10 because you add seven and three which equals ten, and seven of them are dimes.

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3 years ago

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