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ValentinkaMS [17]

2 years ago

8

Explain why a square can never be a trapezoid

1 answer:

Sever21 [200]2 years ago

7 0

Trapezoids cannot have all equal side lengths or 90 degree angles.

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OlgaM077 [116]

It is equal to 3000 to the nearest thousandth

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3 years ago

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What is the side length, in inches, of the pets

tatiyna

Candy draws a square design with a side length of x inches for the window at the pet shop. She takes the design to the printer and asks for a sign that has an area of 16x2 – 40x + 25 square inches. What is the side length, in inches, of the pet shop sign?

Answer:

the length of the sign is $4x-5$ inches

Step-by-step explanation:

Given

Area of the square of design = $16x^{2} -40x+25$

First we find the roots of equation $16x^{2} -40x+25=0$

The roots of the quadratic equation $ax^{2} +bx^{2} +c=0$ are given by

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

where $a=16, b=-40, c=25$

$x=\frac{40\pm\sqrt{(-40)^2-4\times 16\times 25}}{2\times 16}$

$x=\frac{40\pm\sqrt{1600-1600}}{32}$

$x=\frac{40\pm\sqrt{0}}{32}$

$x=\frac{40}{32}$

$x=\frac{5}{4}$

$4x=5\\4x-5=0$

That is, the factors of the polynomial $16x^{2} -40x+25$ are $4x-5$ and $4x-5$ .

So, Area of the square design = $16x^{2} -40x+25$ = $(4x-5)^{2}$

Area of a square = Length^2

Thus, the length of the sign is $4x-5$ inches

7 0

3 years ago

Please help I’ll give brainliest

bekas [8.4K]

Answer:

Total area:75

Step-by-step explanation:

Rectangle area=6×5=30

triangle area=(18×5)/2=45

total area: 30+45=75

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Roman55 [17]

Answer:

b=0,b=5

Step-by-step explanation:

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2 years ago

-15-x=-22<br>What is the answer for this problem

Lelu [443]

Answer:

$x = 7$

Step-by-step explanation:

$-15-x=-22 \\ -15-x + 22 = 0 \\ 7 - x = 0 \\ 7 = x \\ x = 7$

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