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3 years ago

20 ptsevaluate: 48 divided by ( 17 - 15) ^3 - 5help

Mathematics

1 answer:

TEA [102]3 years ago

8 0

48 : (17 - 15)³ - 5 = 48 : 2³ - 5 =

= 48 : 8 - 5 = 6 - 5 = 1

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From Alexa's eyesight to the top of the tree has an angle of 56.789 degrees and its distance of 23.45 feet. Match the following

Marat540 [252]

Answer:

Distance between Alexa and tree = 12.844 ft

Height of tree = 19.620 + height of eyesight from ground

Perimeter of triangle formed = 55.914 ft

Step-by-step explanation:

From the given data, the attached image is drawn ( refer attachment)

Assume

Height of eye line as $h_{A}$ , height of tree as $h_{T}$ , distance of tree from Alexa as X and vertical distance between eye line and top of tree is y.

To find: distance of tree from Alexa

consider triangle ATE. Here

X = 23.45 * cos ( $56.789^{o}$ ) = 12.844 ft

y = 23.45 * sin ( $56.789^{o}$ ) = 19.620 ft

Hence distance of tree from Alexa = 12.844 ft

Height of tree $h_{T}$ = y + $h_{A}$

= 19.620 + $h_{A}$

Perimeter of triangle = X + Y + 23.45 ft

= 12.844 ft +19.620 ft + 23.45 ft

= 55.914 ft

4 0

3 years ago

The equation 2y = 8x represents a proportional relationship. What is the constant of proportionality?

Sphinxa [80]

Answer:

C) 4

Step-by-step explanation:

Given equation:

$2y=8x$

The above equation represents proportional relationship.

To find the constant of proportionality.

Solution:

The equation representing proportional relationship is given by:

$y=kx$

where $k$ represents constant of proportionality.

So, in order to find the value of $k$ for the given proportionality relationship, we will solve for $y$

We have:

$2y=8x$

Solving for $y$

Dividing both sides by 2.

$\frac{2y}{2}=\frac{8x}{2}$

$y=4x$

∴ $k=4$

Thus, the constant of proportionality = 4.

4 0

4 years ago

A farmer planted 3 types of trees on 22 acres of land. He planted 48 trees per acre. What is the total of trees the farmer plant

antoniya [11.8K]

Hey there! :D

He planted 48 trees per acre. Ignore the '3 types of trees' part. I think the question is trying to confuse you. Multiply 48 by 22.

48*22= 1056

The farmer has planted 1056 trees.

I hope this helps!
~kaikers

7 0

3 years ago

Read 2 more answers

Solve the equation using the Zero-Product Property. -5n(4n + 1) = 0

Irina18 [472]

Answer:

The final answers are n = 0 or n = -1/4.

Step-by-step explanation:

Given the equation is -5n(4n + 1) = 0.

The Zero-Product property says "if x*y=0, then x=0 or n=0 or both."

we have -5n(4n + 1) = 0.

We know -5 is not equal to 0.

It means n = 0 or 4n+1 = 0.

n = 0 or 4n = -1.

n = 0 or n = -1/4

So, final answers are n = 0 or n = -1/4.

3 0

3 years ago

Read 2 more answers

Quadrilateral ABCD is inscribed in this circle.

Sedbober [7]

The answer to this is 65.

Remember that the angles opposite of each other equal to 180. So a+c=180 and b+d=180.

First, we solve for x. Since we know that b and d equal to 180, we subtract 148 from 180.
180-148=32. x=32.

Then we plug that in the expression for angle a.
2x+1 becomes 2(32)+1
2*32=64
64+1=65.
a=65

4 0

3 years ago

20 ptsevaluate: 48 divided by ( 17 - 15) ^3 - 5help​

20 ptsevaluate: 48 divided by ( 17 - 15) ^3 - 5help