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Dmitry_Shevchenko [17]
3 years ago
5

If a=6 and b=24 what is (a+b)^2

Mathematics
2 answers:
Lyrx [107]3 years ago
8 0

Answer:

900

Step-by-step explanation:

(a+b)^2

(6+24)^2

30^2= 900

Greeley [361]3 years ago
7 0

Answer:

900

Step-by-step explanation:

6+24=30

30^2=900

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1/2 (x+7)=22 please I need help for my homework!!!
erica [24]

Answer:

x=37

Step-by-step explanation:

Multiply Both Sides by TWO

2*1/2(x+7)=22*2

Simplify

x+7=44

-7    -7

x=37

7 0
3 years ago
1.The sum of three consecutive numbers minus 12 is 75
Arte-miy333 [17]

Answer:

The answer is

One:   28, 29, 30

Two: 75,77

Step-by-step explanation:

One

Let the three numbers be (x - 1) , x , and x + 1

(x - 1) + x + (x +1 ) - 12 =  75                Remove the brackets

x - 1 + x + x + 1 - 12 = 75                    Combine the like terms on the left

3x - 12 = 75                                       Add 12 to both sides

3x = 75 + 12

3x = 87                                              Divide by 3

x = 87/3

x = 29

Two

Let the first odd number = 2x -1

Let the second odd number = 2x + 1

2x - 1 + 2x + 1 + 18 = 170           Combine like terms on the left.

4x + 18 = 170                             Subtract 18 from both sides.

4x = 170 - 18                             Combine like terms on the right

4x = 152                                     Divide by 4

4x/4 = 152/4

x = 38

2 * 38 - 1 = 75

2 * 38 + 1 = 77

7 0
3 years ago
Y varies directly as x. y = 22 when x = 2. Find y when x = 11 <br> Y=
Brums [2.3K]
Y= 121

Y=22 and x=2 is 2x11 to get 22.
So 11x11= 121
3 0
4 years ago
What is the average (arithmetic mean) of all the multiples of ten from 10 to 190 inclusive?
NeX [460]

Answer:

letter C: 100

Step-by-step explanation:

This problem can be configured as an arithmetic progression:

The first value is 10, the ratio is also 10 (the multiples of ten are 20, 30, 40, ...) and the number of terms is 19 (10, 20, 30, ... , 180, 190 -> total of 19 numbers).

So, we can use the following formula to calculate the sum of all these numbers:

Sn = n(a1 + an) /2

where Sn is the sum, n is the number of terms, a1 is the first term and an is the last one.

The result we want is the average of the sum, so we need to divide Sn by n:

Average = Sn/n = n(a1 + an) /2n = (a1 + an) /2 = (10+190)/2 = 200/2 = 100

The correct option is letter C.

7 0
3 years ago
A computer game costs $49.95 plus a 6.25% sales tax. What is the total cost of the game?
lesantik [10]

Answer:

$ 53.07

Step-by-step explanation:

49.95 ×6.25 %= 3.12

the tax is 6.25%

49.95+3.12=53.07

the total price of the game

$53.07

6 0
3 years ago
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