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2 years ago

14

What is an an expression that is equivalent to 9 ( 3x + 5 + x ) without using parentheses.

1 answer:

torisob [31]2 years ago

6 0

Answer:

27x + 45 + 9x

37x + 45

Step-by-step explanation:

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Using the graph, determine the coordinate of the vertex of the parabola.

Sever21 [200]

Answer:

The coordinates for the vertex are ( -6 , 1 )

6 0

3 years ago

A man diving from a platform 30 feet above the water descends 18 feet below the surface. He then sims to the surface how far has

netineya [11]

I think it is 66 not for sure tho thats my answer <span />

8 0

3 years ago

What is the equation of a circle centered at the origin with radius 20?

Colt1911 [192]

We know that
the equation of a circle is
(x-h)²+(y-k)²=r²
where
(h,k)-----> is the center
r--------> is the radius

is the center is the point (0,0) and radius r=20
then
(h,k) is (0,0)

(x-0)²+(y-0)²=20²---------> (x)²+(y)²=400

the answer is
the option D.) x2 + y2 = 400

3 0

3 years ago

Tracy is filling the box with unit cubes that are 1 inch on each side. She will fill the box with cubes without any gaps or over

balu736 [363]

Answer:

$Volume = 48in^3$

Step-by-step explanation:

Given

See attachment for box

Required

The volume of the box

The number of boxes in each direction represents the length of that dimension.

So, from the attachment

$Width = 4in$

$Length = 3in$

$Height = 4in$

The volume is:

$Volume = Length * Width * Height$

$Volume = 4in * 3in * 4in$

$Volume = 48in^3$

5 0

3 years ago

Which models show 40%? Check all that apply. A model with 4 shaded sections and 6 unshaded sections. A model with 40 shaded sect

Amanda [17]

Answer:

A model with 4 shaded sections and 6 unshaded sections.

A model with 40 shaded sections and 60 unshaded sections.

Step-by-step explanation:

Required:

Which models shows 40%

(a) 4 shaded and 6 unshaded

First, we calculate the total sections

$Total = 4 + 6$

$Total = 10$

The percentage of the shaded section is:

$Shaded = \frac{4}{10} * 100\%$

$Shaded = 0.4 * 100\%$

$Shaded = 40\%$

(b) 40 shaded and 60 unshaded

First, we calculate the total sections

$Total = 40 + 60$

$Total = 100$

The percentage of the shaded section is:

$Shaded = \frac{40}{100} * 100\%$

$Shaded = 0.4 * 100\%$

$Shaded = 40\%$

(c) 2 shaded and 8 unshaded

First, we calculate the total sections

$Total = 2 + 8$

$Total = 10$

The percentage of the shaded section is:

$Shaded = \frac{2}{10} * 100\%$

$Shaded = 0.2 * 100\%$

$Shaded = 20\%$

<em>Hence, (a) and (b) shows 40%</em>

8 0

3 years ago

Read 2 more answers