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bonufazy [111]
2 years ago
15

A rectangle has the sum of length and breadth 20 cm. find the perimeter.​

Mathematics
1 answer:
kupik [55]2 years ago
4 0
<h2>Answer:</h2>

40 cm.

<h2>Step-by-step explanation:</h2>

Because=(long+width)\times 2=perimeter

50:the\ perimeter=20\times 2=40\ cm

<em>I hope this helps you</em>

<em>:)</em>

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Question 3
Fiesta28 [93]
Answer: y = -6x + 2

m = y_2 - y_1
/ x_2 - x_1

-10 - 8
/ 2 - (-1)

= -18/3 = -6

m (slope) = -6

y = mx + b
y = -6x +b

Find b using (-1,8)
y = -6x +b
8 = -6(-1) + b
8 = 6 + b
-6 -6
2 = b

Final answer: y = -6x + 2

To check using one of the points: (-1,8) or (2,-10)
y = -6x + 2
-10 = -6(2) + 2
-10 = -12 + 2
-10 = -10
This is a true statement.
5 0
2 years ago
NEED HELP NOW WILL GIVE BRAINLEIST!!!!!!b) Calculate the area of the red triangle to find the area of the garden. Show your work
Arisa [49]

Answer:

Area = 1/2ab sinc

Step-by-step explanation:

the area is given by two sides subtending an angle directly opposite a third side

6 0
3 years ago
Read 2 more answers
If there is an open circle on a number on a number line, is that number included in the inequality
natta225 [31]
The answer is NO open circle is not included in an inequality. The other person answered it incorrectly
8 0
3 years ago
8x - 9 - 5x = 3x - 36 - 18x
makkiz [27]

Answer:

8x - 9 - 5x = 3x - 36 - 18x \\ 8x - 5x - 9 = 3x - 18x - 36 \\ 3x - 9 =  - 15x - 36 \\ 3x =  - 15x - 36 + 9 \\ 3x =  - 15x - 27 \\ 3x +  - 15x =  - 27 \\  - 12x =  - 27 \\ x =  \frac{ 27}{12}

8 0
3 years ago
An office building casts a 90 foot shadow. At the same time of day, a 5 foot woman standing near the building casts an 8 foot sh
Elenna [48]
Make a ratio: 
<span>
Make sure shadow is in same location on both fractions (either numerator or denominator) </span>

x/90=5/8 

Cross multiply: 

8x=90x5 
8x=450 
<span>
x=56.25 feet </span>

Therefore, the approximate height of the building to the nearest foot would be 56.25 feet.
<span>
That makes sense, too, because the woman's shadow is taller than she is, but is less than double her height. </span>The building shadow is taller than the building, but it's less than double the height of the building.

I hope my answer has come to your help. Thank you for posting your question here in Brainly.
8 0
3 years ago
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