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3 years ago

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Mathematics

1 answer:

tangare [24]3 years ago

6 0

Answer:

Circumference

(22÷7)×14.7×2 = 92.4cm

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What number should be added to the expression x2 14x to change it into a perfect square trinomial?.

makkiz [27]

Answer:

Step-by-step explanation:

When you look at the square of a binomial, you see ...

(x +a)^2 = x^2 +(2a)x +a^2

The constant value (a^2) is <em>the square of half the x-coefficient</em>.

(14/2)^2 = 49 . . . . the value to be added.

Adding 49 gives ...

x^2 +14x +49 = (x +7)^2

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1 year ago

What is 24.84 in simplest radical form

Bogdan [553]

Answer:

5 than square root over 10

Step-by-step explanation:

because when you write it out you recive this answer

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2 years ago

A parallelogram with vertices (–1, 3), (5, 1), (3, –2), and (–3, 0) is translated right 4 units, down 2 units.

Tresset [83]

Answer:

(3, 1), (9, -1), (7, -4), and (1, -2)

Step-by-step explanation:

(-1, 3), (5, 1), (3, –2), (–3, 0)

+4 +4 +4 +4

(3, 3), (9, 1), (7, -2), (1, 0)

-2 -2 -2 -2

(3, -1), (9, -1), (7, -4), (1, -2)

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2 years ago

Read 2 more answers

An arch is in the shape of a parabola. It has a span of 100 feet and a maximum height of 25 ft.

faltersainse [42]

Answer:

$y=-\frac{1}{100}(x-50)^2+25$

the height of the arch 10 feet from the center is 24 feet

Step-by-step explanation:

An arch is in the shape of a parabola. It has a span of 100 feet, the vertex lies at the center 50 and the maximum height of 25 ft.

Vertex at (50,25)

vertex form of the equation is

$y=a(x-h)^2+k$ , (h,k) is the center

$y=a(x-50)^2+25$

the parabola starts at (0,0) that is (x,y)

$0=a(0-50)^2+25$

subtract 25 from both sides

$-25=a(-50)^2$

$-25=a(2500)$

divide both sides by 2500

$a=-\frac{1}{100}$

$y=-\frac{1}{100}(x-50)^2+25$

the height of the arch 10 feet from the center.

center is at 50, 10 feet from the center so x=40 and x=60

$y=-\frac{1}{100}(40-50)^2+25$

y=24

the height of the arch 10 feet from the center is 24 feet

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2 years ago

Which describes the solution of the inequality y > −15? Select all the points that are part of the solution.

Svetllana [295]

Step-by-step explanation:

y > -15

y is bigger than -15

= -14 , -13 , -12 , -11 , -10 , etc . . .

8 0

2 years ago