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3 years ago

Use completing the square to solve for x in the equation [X + (x-3) - 25

Mathematics

1 answer:

nika2105 [10]3 years ago

5 0

The answer is or is equivalent to -x=3

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I have a roof that measures 175 ft by 45 ft. During the hurricane 11 inches of rain fell.

Nikolay [14]

Answer:

4.1 billion

Step-by-step explanation:

1 ft = 30.48 cm

1 in = 2.54 cm

The volume of rain that fell on the roof is given by ...

V = LWH

V = (175 ft × 30.48 cm/ft)(45 ft × 30.48 cm/ft)(11 in × 2.54 cm/in)

= 175×45×11×30.48²×2.54 cm³ = 204,412,236.336 cm³

At 20 drops per cm³, this will be ...

20×204,412,236.336 ≈ 4,088,244,727 . . . . raindrops

About 4.1 billion raindrops fell on your roof.

5 0

3 years ago

Which equation in standard form has a graph that passes through the point (-4 , 2) and has a slope of 9/2?

malfutka [58]

Answer is <span>C. 9x-2y=-40

hope that helps

because y = 9/2x +20 then 2y = 9x + 40 so 9x -2y = -40
</span>

8 0

3 years ago

Jose tosses a fair coin 2 times. What is the probability it will land on heads two times in a row?

Umnica [9.8K]

1/2 is the answer. hope this helps

3 0

3 years ago

Read 2 more answers

The formula for the volume of a cone is V = jarh, where V is the volume, r is the radius, and h Is the heightWhat is the volume

olga nikolaevna [1]

Given:

The radius, r=4x

The height,

$h=21xy^2$

To find the volume of the cone:

The volume of the cone formula is,

$V=\frac{1}{3}\pi r^2h$

Substitute the values of r and h in the above formula we get,

$\begin{gathered} V=\frac{1}{3}\pi\times(4x)^2\times21xy^2 \\ =\frac{1}{3}\pi\times16x^2\times21xy^2 \\ =\pi\times16x^2\times7xy^2 \\ =112\pi x^3y^2 \end{gathered}$

Hence, the volume of the cone is

$V=112\pi x^3y^2$

Thus, the correct option is option D.

7 0

1 year ago

Find the value of x<br> A. 8 <br> B. 4<br> C. 19<br> D. 24

hodyreva [135]

<h3>Hello There!!</h3>

Given figure is a <u>parallelogram</u>

Value of"x"

<h3><u>Solution</u></h3>

$m \angle \: A = m \angle \: C$

$2x + 35 = 5x - 22$

$\implies 2x - 5x = - 22 - 35 \div \\ \implies - 3x = - 57 \\ \\ \implies x = \frac{ - 57}{ - 3} \\ \\ \implies x = \cancel\frac{ - 57}{ - 3} \\ \\ \implies x = 19$

$\therefore \text{Option C= 19 is the correct answer}$

<h3>Hope this helps</h3>

4 0

2 years ago