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2 years ago

2. What are the solutions to the quadratic equation

Mathematics

1 answer:

Svetlanka [38]2 years ago

8 0

Answer:

The answer is x=5 and x=−5

x² - 25 = 0

(x-5)(x+5)=0

x²-5x+5x-25=0

x-5=0 x+5=0

x=5 or x=-5

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Solve for x <br> And show work

Zinaida [17]

Answer:

2x - 20 + 7 = x - 1

2x - 13 = x-1

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x = 12

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2 years ago

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Answer:

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2 years ago

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The cost of performance tickets and beverages for family of four can be modeled using the equation 4x+12=48, where x represents

Radda [10]

First you will have to even out the statement so minus 12 from both sides.

4x=36

Now divide both sides by 4

x=9

The ticket is 9 dollars.

Now you have the answer.

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3 years ago

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A statue is mounted on top of a 25 foot hill. From the base of the hill to where you are standing is 53 feet and the statue subt

bixtya [17]

Answer:15.848 ft

Step-by-step explanation:

Given Height of hill is 25 foot

and distance between Hill foot and feet is 53 feet

angle subtended by 12.4^{\circ}[/tex]

From diagram

$tan\theta =\frac{25}{53}$

$tan(\theta +12.4)=\frac{h+25}{53}$

and we know $tan(A+B)=\frac{tanA+tanB}{1-tanAtanB}$

using above formula

$tan(\theta +12.4)=\frac{tan\theta +tan(12.4)}{1-tan(\theta )tan(12.4)}$

$\frac{h+25}{53}=\frac{\frac{25}{53}+0.219}{1-0.219\times \frac{25}{53}}$

$0.896h+22.407=25+11.607$

h=15.848 ft

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3 years ago

Find the circumference and the area of a circle with diameter 2 cm . Use the value 3.14 for π , and do not round your answers. B

Fynjy0 [20]

Circumference= 2×pi×R
Area= pi× R^2
Since Diameter=2 cm ---> Radius is 2× diameter , so R=4 cm

Circumference=2×3.14×4= 25.12 cm
area=3.14× (4)^2= 50.24 cm^2

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2 years ago