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mezya [45]
2 years ago
15

A square has an area of 9 cm². Find its perimeter

Mathematics
2 answers:
dlinn [17]2 years ago
8 0

Answer:

12

Step-by-step explanation:

area is base x height. 3×3 is 9. all sides of a square are equal so 3+3+3+3= the perimeter which is 12.

NeTakaya2 years ago
4 0

Answer:

12

Step-by-step explanation:

A square having an area of 9 cm² means it’s side lengths must be equal to √9 which is 3 now to find the perimeter we multiply 3 by 4 as a square has 4 sides:

3×4=12

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Smiths bike shop rents bikes for $10
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10+(4x3)= $22 (How much she rent the bike for)
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2 years ago
Solve and check<br> SOLVE:<br> 2x + 5 – 3 (2x - 7) = 2 (3x – 5) – 4
vlada-n [284]

Good morning ☕️

______

Answer:

x=4

___________________

Step-by-step explanation:

-Solving:

2x + 5 – 3 (2x - 7) = 2 (3x – 5) – 4

2x + 5 – 6x + 21 = 6x – 10 – 4

-4x + 26 = 6x - 14

10x= 26+14

10x=40

x=4

-Checking:

x=4

2(4) + 5 – 3 (2(4) - 7) = 8+5-3(8-7) = 13-3(1) =13-3=10

2 (3(4) – 5) – 4 = 2(12-5)-4 = 2(7)-4=14-4=10.

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8 0
3 years ago
URGENT!
serg [7]

Answer:

number one is the appropriate answer for this question

7 0
3 years ago
Read 2 more answers
Need some help with this​
Katen [24]

Answer:

1/3

Step-by-step explanation:

Slope is rise over run

your rise is 1 (because you only go up one block each time)

your run is 3 ( because you go right three times)

so 1/3

3 0
2 years ago
Find the equation of a line that is perpendicular to 4x+6y=1 that has a greater y intercept compared to 2x+3y=18
Marina86 [1]

Answer:

4y = 6x + 40

Step-by-step explanation:

The general equation of a straight line is y = mx + b

m is the slope and b is the y-intercept

let us write both equations in this form;

we have this as;

6y = -4x + 1

y = -4x/6 + 1/6

and;

2x + 3y = 18

3y = -2x + 18

y = -2x/3 + 6

So firstly we want to find an equation that is perpendicular to the first

When two lines are perpendicular, their slopes has a product of -1

The slope of the first line is -4/6

let the slope of the line we want be m

As per they are perpendicular;

-4/6 * m = -1

-4m/6 = -1

-4m = -6

m = 6/4

So now, we want the y-intercept greater than that of the second equation which is a y-intercept of 6

we can choose 10

and we have the equation as:

y = 6x/4 + 10

multiply through by 4

4y = 6x + 40

7 0
3 years ago
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