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4 years ago

Divide. −5 5/8÷5 a) −1 1/8 b) −5/8 c) 5/8 d) 1 1/8

Mathematics

2 answers:

Romashka-Z-Leto [24]4 years ago

4 0

Try to go with D.? that's what I would pick.

mrs_skeptik [129]4 years ago

4 0

Answer:

I believe the answer is A, but I can't be completely sure.

Step-by-step explanation:

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Annie is framing a photo with a length of 6 inches and a width of 4 inches. The distance from the edge of the photo to the edge

Ede4ka [16]

Answer:

Part a) The quadratic function is $4x^{2} +20x-39=0$

Part b) The value of x is $1.5\ in$

Part c) The photo and frame together are $7\ in$ wide

Step-by-step explanation:

Part a) Write a quadratic function to find the distance from the edge of the photo to the edge of the frame

Let

x----> the distance from the edge of the photo to the edge of the frame

we know that

$(6+2x)(4+2x)=63\\24+12x+8x+4x^{2}=63\\ 4x^{2} +20x+24-63=0\\4x^{2} +20x-39=0$

Part b) What is the value of x?

Solve the quadratic equation $4x^{2} +20x-39=0$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem

we have

$4x^{2} +20x-39=0$

$a=4\\b=20\\c=-39$

substitute in the formula

$x=\frac{-20(+/-)\sqrt{20^{2}-4(4)(-39)}} {2(4)}$

$x=\frac{-20(+/-)\sqrt{1,024}} {8}$

$x=\frac{-20(+/-)32} {8}$

$x=\frac{-20(+)32} {8}=1.5\ in$ -----> the solution

$x=\frac{-20(-)32} {8}=-6.5\ in$

Part c) How wide are the photo and frame together?

$(4+2x)=4+2(1.5)=7\ in$

5 0

3 years ago

PLEASE HELP! 28 POINTS!

ehidna [41]

1.) 7.2 2.) 15 3.)12
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OlgaM077 [116]

7:50 AM /PM is the time

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4 years ago

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What is the area of the parallelogram?

Genrish500 [490]

Equals the product of one of its sides

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3 years ago

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I’ll give you fat points

Bogdan [553]

Answer:

See below

Step-by-step explanation:

<u>Multiply and simplify:</u>

(x - 1)(x + 2)(x + 3) =
(x² + 2x - x -2)(x + 3) =
(x² + x - 2)(x + 3) =
x³ + 3x² + x² + 3x - 2x - 6 =
x³ + 4x² + x - 6

<u>From the final polynomial we can see that:</u>

a = 1, b = 4, c = 1 and d = - 6

So all the coefficients are positive but the constant d is negative

5 0

3 years ago

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Divide. −5 5/8÷5 ​​ a) −1 1/8 ​​ b) −5/8 c) 5/8 ​​ d) 1 1/8

Divide. −5 5/8÷5 a) −1 1/8 b) −5/8 c) 5/8 d) 1 1/8