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Rom4ik [11]
4 years ago
11

How would you write an expression using a variable for the area and perimeter of a square with side 2x-9

Mathematics
1 answer:
Paladinen [302]4 years ago
7 0
Perimeter :
because there are four sides to a square and all sides are the same, the answer is 4(2x-9)
area:
area is basically length times width so the answer is (2x-9)(2x-9) or (2x-9)^2
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What is 10 more than 818
g100num [7]

Answer:

828...............

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Andre ran 2 kilometers in 15 minutes, and Jada ran 3 kilometers in 20 minutes. Both ran at a constant speed. Did they run at the
Goshia [24]

Answer:

speed of Jada = 6km per hour which is not equal to

speed of Andre = 8km per hour

They did not run at same speed

Step-by-step explanation:

formula of speed = distance covered/ time taken

For Andre

Distance = 2 KM

time = 15 mins

60 mins = 1 hour

15 mins = 1/60 * 15 hour = 0.25 hours

thus,

speed = 2km/0.25 hour = 8 km per hour

Similarly for Jada

Distance = 3 KM

time = 20 mins

60 mins = 1 hour

20 mins = 1/60 * 20 hour = 1/3 hours

thus,

speed = 2km/(1/3)hour = 6  km per hour

Now we have

speed of Jada = 6km per hour which is not equal to

speed of Andre = 8km per hour

6 0
3 years ago
The roots of a certain quadratic equation is 1 and 2/3. Determine the equation
MrRa [10]

Answer:3x^2-5x+2=0

Step-by-step explanation:

Format of a quadratic equation= ax^2 +bx+c

Let x=1 and 2/3

When x=1

x-1=0.......(1)

When x=2/3

x-2/3=0.........(2)

Compare the equations

(x-1)(x-2/3)=0

x^2-2/3x-x+2/3=0

x^2-5/3x+2/3=0

Multiply all terms by 3

3x^2-5x+2=0

4 0
4 years ago
If the measure of complementary angles are (2x+3)° and x°. Find the measure of x
lys-0071 [83]
<h3>Answer: x = 29</h3>

========================================================

Work Shown:

A = 2x+3

B = x

angles A and B are complementary, so they add to 90 degrees

A+B = 90

(2x+3)+(x) = 90

2x+3+x = 90

2x+x+3 = 90

3x+3 = 90

3x+3-3 = 90-3

3x = 87

3x/3 = 87/3

x = 29

Extra info:

2x+3 = 2(29)+3 = 58+3 = 61

Note that 29 and 61 add to 29+61 = 90

7 0
4 years ago
9.
Pani-rosa [81]

Answer:

rakamları farklı,üç basamaklı iki farklı sayının çarpımı "*en az*" kaçtır dediğine göre ilk olarak rakamları farklı üç basamaklı en küçük sayiyi bulmalıyız. Rakamlari farklı üç basamaklı en küçük doğal sayi:102 dir

şimdi birbirinden farklı iki sayı dedigi için ikinci sayıya 102 diyemeyiz o yüzden biz de 102den farklı en küçük 2. sayiyi bulmalıyız. O zaman 2. sayımız 103 olur

102×103=10 506 olur

CEVAP= D

3 0
3 years ago
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