<img src="https://tex.z-dn.net/?f=5%5Csqrt%7B2%7D%20%2F%20%5Csqrt%7B18" id="TexFormula1" title="5\sqrt{2} / \sqrt{18" alt="5\sqr

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Katyanochek1 [597]

2 years ago

t{2} / \sqrt{18" align="absmiddle" class="latex-formula">

Mathematics

1 answer:

crimeas [40]2 years ago

8 0

Answer:

Step-by-step explanation:

what is the question

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Solve for X x+27 = -12 pls hurry pleaseeeee

Yuliya22 [10]

Answer:

x + 27 = - 12

x = - 39

Step-by-step explanation:

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2 years ago

How many kilometers in a marathon

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42.194988

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There are 42.194988 km in 1 marathon

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3 years ago

At a point on the ground 46 feet from the foot of a tree, the angle of elevation of the top of the tree is 68 degrees. What is t

Mandarinka [93]

Answer:

114 ft

Step-by-step explanation:

Imagine or construct a right triangle with the 46 ft leg lying on the ground. This is the "adjacent side" of the triangle; it lies immediately adjacent to the 68 degree angle. The side opposite this angle is h, the height of the tree.

The tangent function includes angle, opp side and adj side:

tan 68 degrees = opp / adj = h / (46 ft), and so:

(46 ft)*tan (68 degrees) = opp = h

Then the height of the tree is h = (46 ft)(2.47) = 114 ft

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3 years ago

Expand and simplify 5(3x+2)-2(4x-1)

Rama09 [41]

Answer:

15x+10-8x+2

7x+12

Step-by-step explanation:

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3 years ago

Read 2 more answers

You work for a company that produces custom picture frames. A new customer needs to frame a piece of rectangular artwork with di

miskamm [114]

Answer:

None of the choices are correct.

Step-by-step explanation:

Let x be the width of the frame,

The framed art cannot me more than 320 square inches

$(11 + 2x) \times (15+2x) \leq 320$

$(165 +30x +22x +4x^2 ) \leq 320$

$4x^2+52x + 165 \leq 320$

$4x^2 +52x + 165-320 \leq 0$

$4x^2 +52x - 155\leq 0$

By using the quadratic formula

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

$x = \frac{-52\pm \sqrt{(52^2-4(4)(-155))}}{2(4)}$

$x = \frac{-52\pm \sqrt{(2704+2480)}}{2(4)}$

$x = \frac{-52\pm \sqrt{(5184)}}{2(4)}$

$x = \frac{-52\pm 72}{2(4)}$

$x = \frac{20}{8}$

$x= \frac{5}{2}$

$x = 2.5$

Frame must not be more than 2.5 inches wide.

4 0

3 years ago