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2 years ago

Solve for x in the equation x2+2x+ 1 = 17.

Mathematics

1 answer:

aleksandr82 [10.1K]2 years ago

7 0

Answer:

3.1 or 3.12 and -5.1 or -5.12

Step-by-step explanation:

Quadratic formula message me if you want to go in depth.

(3.1 or 3.12) and (-5.1 or -5.12)

You select one number from each parentheses column based on what you are rounding by

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David's bedroom door is 8 feet tall and 4 feet wide. A new door would cost $8.00 per square foot. How much would a new bedroom d

Verdich [7]

Answer:

$ 256

Step-by-step explanation:

square footage of door = 8 x 4 = 32 ft^2

32 ft^2 * 8 dollar /ft^2 = $ 256

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1 year ago

Y = 3x - 5 what is the value of Y??

lara [203]

Answer:

Step-by-step explanation:

x=12

so y=3⋅12 +5

=36+5

=41

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2 years ago

Read 2 more answers

Does anyone know this? Needed ASAP

anzhelika [568]

Answer:

50 square units

Step-by-step explanation:

Using the formula provided, $a = \frac{1}{2}h(b_1+b_2)$ , substituting the height (5), b1 (8) and b2 (12), we can solve for the formula.

$a = \frac{1}{2}\cdot5(8+12)\\\\a = \frac{1}{2}\cdot5(20)\\\\a = \frac{1}{2}100\\\\a = 50$

Hope this helped!

4 0

2 years ago

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Use the square root property of equality to solve (x – 3)2 = –4. The solutions are a. -1 or 7 b. 1 or 5 c. 3+- 2i d. 3+-4i

makkiz [27]

The answer is C. 3+-2i

(x-3) $(x-3)^{2} = -4

 \sqrt{(x-3)^2} = +- \sqrt{-4

x - 3 = i \sqrt{4} 

x - 3 = +-2i

x = 3 +-2i$

6 0

2 years ago

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Ethan is watching a satellite launch from an observation spot 1 mile away. Find the angle of elevation from Ethan to the satelli

Thepotemich [5.8K]

Answer:

$\theta=80.53^{\circ}$

Step-by-step explanation:

From the attached figure, AB is the height of the satellite and the distance between Ethan and the ground is 1 mile.

We can find the angle of elevation from Ethan to the satellite using trigonometry as follows :

$\tan\theta=\dfrac{P}{B}\\\\\tan\theta=\dfrac{6}{1}\\\\\theta=\tan^{-1}(6)\\\\\theta=80.53^{\circ}$

So, the angle of elevation is 80.53 degrees.

3 0

2 years ago