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3 years ago

Describe fully the single transformation that maps traingle a to triangle b

Mathematics

2 answers:

Ahat [919]3 years ago

8 0

Answer:

it is a reflection

Klio2033 [76]3 years ago

3 0

Its exact reflection.

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Christine's age is two times sydney's age. the sum of their ages is 54. what is sydneys age?

Naddika [18.5K]

Let Sydney's age be x
Christine's age is 2x

Sum of their age is 54
x + 2x = 54
3x = 54
x = 18

Sydney is 18 years old.

6 0

3 years ago

Simplify the following y^-1z^5×y^3z^2

adell [148]

Answer:=y^3z^7y

Step-by-step explanation:

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4 years ago

Solve the system by substitution y=x-1 and -2x-3y=-1

Trava [24]

Answer:

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Step-by-step explanation:

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3 years ago

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7. A store sells various types of electronics. Each item was discounted the same

olga2289 [7]

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3 years ago

Rickey has been commissioned to paint a mural that is allowed to have an area of 50 square meters. To make the rectangle shape o

Leno4ka [110]

Answer:

12.808 meter is the length should Rickey use for the mural.

Step-by-step explanation:

Area of the mural = A = $50 m^2$

Length of the mural = l

Width of the mural = w

l = 5 + 2w

Area of the rectangle = l × w

$A=(5+2w)\times w$

$50 m^2=5w+2w^2$

$2w^2+5w-50=0$

Solving above equation with the help of Completing squares method:

$(\sqrt{2}w)^2+2\times \sqrt{2}w\times \frac{5}{2\sqrt{2}}+(\frac{5}{2\sqrt{2}})^2-50=(\frac{5}{2\sqrt{2}})^2$

$(a+b)^2=a^2+b^2+2ab$

$(\sqrt{2}w+\frac{5}{2\sqrt{2}})^2=(\frac{5}{2\sqrt{2}})^2+50$

$(\sqrt{2}w+\frac{5}{2\sqrt{2}})^2=\frac{25}{8}+50$

$(\sqrt{2}w+\frac{5}{2\sqrt{2}})^2=\frac{425}{8}$

$(\sqrt{2}w+\frac{5}{2\sqrt{2}})=\pm\sqrt{\frac{425}{8}}$

w = 3.904 m (accept)

w = -6.404 m (reject)

l = (5 + 2w)m = 5 + 2 × (3.904) m= 12.808 m

12.808 meter is the length should Rickey use for the mural.

3 0

3 years ago