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3 years ago

11

6) R E 126 10x + 8 13 + 5x D A) 1 C) 5 B) 7 D) 14

1 answer:

Gemiola [76]3 years ago

3 0

Step-by-step explanation:

step 1. what is the question? maybe the question is what is the value of x in the diagram. okay.

step 2. interior angles of a triangle add up to 180°

step 3. the 3 angles inside the triangle are 10x + 8, 13 + 5x, and (180 - 126)

step 4. (10x + 8) + (13 + 5x) + 54 = 180

step 5. 15x + 21 = 126

step 6. 15x = 105

step 7. x = 7.

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Answer:

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3 years ago

A composite figure is formed from a cone and a cylinder with the same base radius, and its volume can be calculated by multiplyi

olga55 [171]

The composite figure comprises of a cone balanced on top of cylinder

Step-by-step explanation:

The composite figure is formed from a cone and a cylinder with the same base radius, Let the base radius be r

Then the volume of the cone will be $V_{cone}$

Then the volume of the cylinder will be $V_{cylinder}$

$V_{cylinder} = \pi r^{2} h_{cylinder}$

The total volume of the composite figure will be V, where

$V= V_{cone} + V_{cylinder}$

$V = \frac{1}{3} \pi r^{2} h_{cone} +\pi r^{2} h_{cylinder}$

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4 years ago

Which trend BEST describes the relationship in the graph?

vovangra [49]

Answer:

D

Step-by-step explanation:

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3 years ago

Use the table definitions of H(t) and r(t) shown below to find (H o r)(3.0)

fredd [130]

Answer:

C

Step-by-step explanation:

Given the tables of H(t) an r(t), we want to find:

$(H\circ r)(3.0)$

As stated, this is equivalent to:

$=H(r(3.0))$

Using the r(t) table, we can determine that:

$r(3.0)=2.0$

Therefore:

$H(r(3.0))=H(2.0)$

And by using the H(t) table, we can determine that:

$H(2.0)=2.5$

So, our answer is C.

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3 years ago

On a buying trip in los angeles, rosaria perez ordered 120 pieces of jewelry: a number of bracelets at $77 each and a number

Digiron [165]

Let, the number of bracelets be x and the number of necklaces be y.

Given, there are 120 pieces of jewellery which are bracelets and necklaces.

So we can write the equation, $x+y = 120$ ....equation 1

Now given the price of bracelet = $7

So, the price of x bracelets = $ $(7)(x)$ =$ $(7x)$

Given, the price of necklace = $13.

So, the price of y necklaces = $ $(13)(y)$ = $ $(13y)$

The total amount for the jewellery given = $ 1080.

We can write the equation as,

$7x + 13y = 1080$ ....equation 2

Now from equation 1, we can write,

$x = 120-y$

By substituting this value of x in equation 2, we will get,

$7(120-y) + 13y = 1080$

$840-7y+13y = 1080$

$840+6y = 1080$

Now we will move 840 to the right side by subtracting it from both sides. We will get,

$840+6y-840 = 1080-840$

$6y = 1080-840$

$6y = 240$

We can get y by moving 6 to the other side by dividing it to both sides. We will get,

$\frac{(6y)}{6} =\frac{240}{6}$

$y =\frac{240}{6}$

$y = 40$

So we have got the number of necklaces = 40

Now we have, $x = 120-40$

$x = 80$

So, the number of bracelets = 80

We have got the required answer here.

8 0

3 years ago