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yKpoI14uk [10]
4 years ago
15

If (9x − 4)(9x + 4) = ax2 − b, what is the value of a? The value of a is _____________.

Mathematics
1 answer:
AlladinOne [14]4 years ago
3 0
Your answer should be 81 for a. I got this result by multiplying 9 by 9.
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Danielle earns a 7.75% commission on everything she sales at the electronic store where she works. She also earns a base salary
Andrew [12]

The first thing thing you must do is create an equation for this problem. Remembering that 7.75% = 0.0775

($4,100 × 0.0775 + $4,100 ) + $600

Now, all you have to do is solve it. You will first have to start with the numbers in the parenthesis using the order of operation (PEMDAS).

P = Parenthesis

E = Exponent

M = Multiplication

D = Division

A = Addition

S = Subrtaction

$4,100 × 0.0775 + $4,100 ) + $600

$4,417. 75 + $4,100 + $600

$4,417. 75 + $600 = $5,017.75

Danielle made $5,017. 17 last week.

I hope this helps! :)

4 0
3 years ago
QTR is a right triangle TQR is a right triangle QS is an altitude which statements are true
mars1129 [50]

Answer:

A and C

Step-by-step explanation:

for A

QT/RT=ST/QT=QS/QR  

There are two QT's in this

so

(QT)^2 = RT * ST

FOR B

there is no RT twice

for C

QR/RT RS/QR

There is a QR twice

so QR^2=RT*RS

FOR D there is no RT twice  

(if you have the other answers for this quiz plz give them to me lol)

4 0
3 years ago
14
Angelina_Jolie [31]

Answer:

C.8.12 units

Step-by-step explanation:

7 0
3 years ago
the price of an article is marked at 25%above the cost price .If it is sold at the profit of Rs 125 after allowing 15%discount ,
I am Lyosha [343]

it will help you a lot is it correct

8 0
2 years ago
Amy drove to her mother's house, which is
Ira Lisetskai [31]

Answer:  68 miles per hour 2

204 miles/3 hours = 68 miles per hour

i hope this helps you ok :)

6 0
2 years ago
Read 2 more answers
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