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olganol [36]
3 years ago
14

Expand & simplify(9x - y) (9x + y)​

Mathematics
1 answer:
grandymaker [24]3 years ago
5 0

Answer:

81x^{2}- y^{2} this is the answer

Step-by-step explanation:

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Perimeter of rectangle = 96 cm
madreJ [45]

Answer:

w = 16

EQUATION: (96 - 32 × 2) ÷ 2 = w   ⇆ USE PEMDAS

Step-by-step explanation:

32 + 32 = 64

96 - 64 = 32

32 ÷ 2 = 16

w = 16

brainliest please

6 0
3 years ago
HELP I’LL GIVE THE BRIANLIEST TO WHOEVER ANSWERS CORRECTLY!!!!!
jeyben [28]

Answer:

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Step-by-step explanation:

6 0
3 years ago
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You earned 1008 in interest by keeping your money in the bank for 7 years at a rate of 4.5.What was your initial deposit?
8090 [49]

Answer:

The principal required to  accumulate interest of $ 1,008.00  on a rate of 4.5% per year for 7 years is $ 3200.

Step-by-step explanation:

Given:

Interest I = $ 1008

Time period t = 7 years

Rate of Interest per year r = 4.5% = 4.5/100 = 0.045

To determine:

Initial deposit P = ?

Using the simple interest formula

I = Prt

P = I / rt

P = 1008 / ( 0.045 × 7 )

P = $ 3200

Therefore, the principal required to  accumulate interest of $ 1,008.00  on a rate of 4.5% per year for 7 years is $ 3200.

6 0
3 years ago
At 11:45 A.M. Jason glanced at the clock. His doctor's appointment was in 2 ½ hours. At what time was his appointment
Dafna1 [17]

Answer:

14 : 15 or 2 : 15 pm

Step-by-step explanation:

Time of the appointment = 11: 45 +  2 ½ hours

Jason's appointment is in  2 ½ hours. His appointment is in 2 hours + 1/2 of an hour

1/2 of an hour = 1/2 x 60 = 30 minutes

Remember that 60 minutes make one hour

Time of the appointment = 11:45 + 2:30

 11 : 45

+ <u>2 : 30 </u>

 13 :  75

we would have to adjust the time derived from the addition because the maximum minutes that exist is 60

To adjust, remove 60 minutes from the minutes and add it to the hour

this gives 14 : 15 or 2 : 15 pm

<u />

6 0
3 years ago
9.92749, √101, 0.99853, 10π greatest to least
Fudgin [204]

Using a calculator, determine the value of √101 to four or five decimal places.  Do the same with 10π.  We get { 9.92749, 10.0500, 0.99853, 31.4159}.

Arranging these in descending order, we get {10π, √101, 9.92749, 0.99853}.

8 0
3 years ago
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