HELP PLEASE!!!!!! ITS AREA AND PERIMETER THWRE ARE 5 PHOTOS PLEASE HELP <3
2 answers:
Q2: 160 + 120 + 210 + 70 + 90 + 90 = <em><u>740</u></em>
Q3: (160 x 120) + (70 x 90) = <u><em>25500</em></u>
19200 + 6300
Q5: As = 1/2 (6cm)^2
(6cm)^2 = 36cm
1/2 (36)
\pi = 3.14159 x 36 = 113.09 / 2 = 56.54 cm^2 area
12 x 7 = 84 + 56.54 = <em><u>140.54cm^2</u></em>
<em><u></u></em>
Q6: 11 + 9 + 20 + 14 = <em><u>54</u></em>
Q7: 9 x 11 = 99
11 x 11 = 122 / 2 = 61 99 + 61 =<em><u> 160^2</u></em>
You might be interested in
The solution is x = 4 and y = -1
Step-by-step explanation:
The system of equation is:
- y =
x - 3
- y = x - 5
To solve it using the elimination method do that
∵ y = x - 3 ⇒ (1)
∵ y = x - 5 ⇒ (2)
- Subtract equation (1) from equation (2) to eliminate y
∵ y - y = (x - x) - 5 - (-3)
- Remember (-)(-) = (+)
∴ 0 = x - 5 + 3
∴ 0 = x - 2
- Add 2 to both sides
∴ 2 = x
- Multiply both sides by 2
∴ 4 = x
∴ x = 4
- Substitute the value of x in equation (1) or (2) to find y
∵ y = 4 - 5
∴ y = -1
The solution is x = 4 and y = -1
Learn more:
You can learn more about the system of linear equations in brainly.com/question/2115716
#LearnwithBrainly