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Vilka [71]
3 years ago
13

Grade 8 Math 8

Mathematics
1 answer:
jeyben [28]3 years ago
4 0
Thank you thank you very much
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A square photograph has a perimeter of 20 inches what is the area of the photograph
navik [9.2K]
Since it's a square it must have 4 sides.
20÷4=5

area=l×w or b×h
5×5=25 (the sides of a square have the same length)

the area of the photograph is 25in²

hope this helped
7 0
4 years ago
Divide 9x4 - 6x2 + 3x2 by 3x2 -1.
bulgar [2K]

Answer:

3x^2 is the final solution

See the image below for step by step explanation.

7 0
3 years ago
Please help ASAP thank you
olchik [2.2K]
C is the correct answer
3 0
3 years ago
The perimeter of an equilateral triangle is 11 inches more than the perimeter of a square, and the side of the triangle is 6 inc
uysha [10]

Answer:

13 inches

Step-by-step explanation:

Let P(t) and P(s) be the perimeters of the equilateral triangle and square respectively. Similarly, t and s be the side lengths of equilateral triangle and square respectively.

According to the first condition :

(Perimeter of an equilateral triangle is 11 inches more than the perimeter of a square)

\implies P(t) = P(s) + 11

\implies 3t = 4s + 11....(1)

According to the second condition :

(The side of the triangle is 6 inches longer than the side of the square)

\implies t = s + 6....(2)

From equations (1) & (2)

3(s + 6) = 4s + 11

3s + 18 = 4s + 11

3s - 4s = 11 - 18

-s = - 7

s = 7 inches

\because t = s + 6

\because t = 7 + 6

\because t = 13\: inches

Thus the side of the triangle is 13 inches long.

7 0
3 years ago
Clarisvaudney tem 12 anos. Seu primo é 50% mais novo.Qual é a soma da idade dos dois?
Nitella [24]
The answer is 18.

12/2=6
6+12=18
8 0
3 years ago
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