Write the phrase as an expression. Then evaluate the expression when y = 12. the difference of a number y and 9 The expression is The value of the expression is​

Answer:

I think it's positive

Step-by-step explanation: sorry if i'm wrong tho

Answer:

For a rectangular prism that has a base area B, and a height H, the volume is:

V = B*H

This is the only "tool" that we need to use in this situation.

We know that the wall needs to be 3ft tall, then H = 3ft

And we also know that we have enough bricks for a wall of a volume:

V = 330 ft^3

If we replace these two in the volume equation, we get:

330ft^3 = B*3ft

Now we can solve this for B, and thus find the volume of the base of the wall.

To do it, we just need to divide both sides by 3ft

(330 ft^3)/3ft = B*3ft/3ft

110 ft^2 = B

This means that the area of the base is 110ft^2

As the base is a rectangle of width W and length L, we must have:

110ft^2 = B = L*W

Then the possible measures of the base are given by the linear relation:

L = 110ft^2/W

Where we also need to add some trivial restrictions, like:

L > 0 ft

W > 0ft

This only means that we can not have a length or width equal to or smaller than zero, as those do not have physical sense.

Answer:

x = 109°

Step-by-step explanation:

x° is 37° + 72°, due to exterior angle property.

so x° = 109°

Given:

The perimeter of a backyard basketball court with four sides is 90 feet.

Two sides of the court are each 20 feet long.

One side of the court is 25 feet long.

To find:

The missing side length of the basketball court.

Solution:

Let x be the missing side length.

The three given sides of the basketball court  are 20 feet, 20 feet, 25 feet.

We know that the perimeter is the sum of all sides.

[tex]Perimeter=x+20+20+25[/tex]

[tex]Perimeter=x+65[/tex]

The perimeter of a backyard basketball court with four sides is 90 feet.

[tex]x+65=90[/tex]

[tex]x=90-65[/tex]

[tex]x=25[/tex]

Therefore, the missing side length is 25 feet and the correct option is B.

Answer:

= 2x + 3

Step-by-step explanation:

have a nice day!! :)

Answer:

B

Step-by-step explanation:

Volume of a cone: pi r^2 h/3 where h is height and r is radius.

So pi *72.25 (8.5^2) *6( 18/3)= 1361.8.

Have a great day!

Answer:

I believe it is 122.6

Step-by-step explanation:

1,250 - 24 = 1,226

10%of 1,226 = 122.6

Answer:

x<8 is correct

Step-by-step explanation:

Answer:

I drew it out and attached it as an image

Step-by-step explanation:

Answer:

c) 2

Step-by-step explanation:

hope it helps you

pls mark as brainliest...

The answer is 2 or C

Answer:

it looks dead ..............

Answer:

$150

Step-by-step explanation:

To solve this we first must find what 3% is in decimal form. Move the decimal to the left 2 spots. 3% -> 0.03

Then multiply...

5000 · 0.03 = 150

Answer:

$5,152.08

a = p (1 + r/n)^nt

Answer:

$2 I think not sure if not sorry

Answer:

x=2

Step-by-step explanation:

have a nice day

The solution is, Figure a is a half sphere and figure b is a cylinder.

In geometry, a shape can be defined as the form of an object or its outline, outer boundary or outer surface. Everything we see in the world around us has a shape.

here, we have,

from the given figure, we have,

the given shape has two parts,

the upper half is a half sphere.

Hemisphere includes the prefix hemi-, meaning "half". The northern and southern hemispheres are divided by the equator, the circle halfway between Earth's two poles. The eastern and western hemispheres aren't divided so exactly, since there are no poles in the Earth's east-west dimension.

and, the part b is a cylinder.

A cylinder is a three-dimensional shape consisting of two parallel circular bases, joined by a curved surface. The center of the circular bases overlaps each other to form a right cylinder.

Hence, The solution is, Figure a is a half sphere and figure b is a cylinder.

learn more on shape:

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Answer:

$23.22 per day.

Step-by-step explanation:

For a general function f(x), the average rate of change between A and B (when B > A) is:

[tex]r = \frac{f(B) - f(A)}{B - A}[/tex]

In this case we know that the function is:

f(x) = 0.01*(2)^x

And we want to find the average rate of change from day 7 to day 14

Then if we use the above equation we get that the rate of change from day 7 to day 14 is:

[tex]r = \frac{0.01*(2)^{14} - 0.01*(2)^7}{14 - 7} = 23.22[/tex]

Because this equation is in dollars, we can conclude that the average rate of change between day 7 and day 14 is $23.22 per day.

An average rate of change between A and B (where B>A) for a generic function [tex]f(x)[/tex] is:

[tex]\to r=\frac{f(B)-f(A)}{B-A}\\\\[/tex]

[tex]\to f(x) = 0.01\times (2)^x[/tex]

[tex]\to r=\frac{0.01\times 2^{14} -0.01 \times 2^7}{14-7}=23.22[/tex]

Since this equation is stated in dollars, we can calculate that the average rate of change between days 7 and 14 is [tex]\$23.22[/tex] each day.

Learn more:

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Answer:

the total cost is 32.50 or 32.49575

Step-by-step explanation:

Answer:

he payed $32.50 for the stuffed bear

Step-by-step explanation:

multiple 29.95 by.085 and then add the number you get to the original

Answer:

13.999975443466645809607317476264924904625964880398

Step-by-step explanation:

That's only 50 digits

Answer:

282.63 miles

Step-by-step explanation:

A scale drawing is a reduced form in terms of dimensions of an original image / building / object

the scale drawing is usually reduced at a constant dimension

scale of the drawing = original dimensions / dimensions of the scale drawing

Distance from Smithsville to Clarksville = distance from  Smithville to Jonesville + distance from Jonesville to Clarksville

distance from  Smithville to Jonesville = (334 x 4) / 12 = 111. 3 miles

distance from Jonesville to Clarksville =  (514 x 4) / 12 = 171.33

111.3 + 171.33 = 282.63

Answer:

$36.75

Step-by-step explanation:

If you take the original cost 35.00 and add 5% to it, you would get 36.75. If you think about it, it has to be above $35 since the sales tax would be more.

Answer: A - $36.75

Step-by-step explanation: Used a sale tax calculator. Hope this helps!

Answer:

B

Step-by-step explanation:

The distribution is skewed to the left (the lower end is pulled out to the left).  The mean is less than the median.  If the distribution were even more skewed to the left the mean would decrease, but the median (middle number in the data) would stay the same.

Answer:

The answer is C

Step-by-step explanation:

By looking at the graph, you can instantly tell that the first point is (-3,-2) which immediately eliminates the other choices

Answer:

38.11 feet

Step-by-step explanation:

all three corners of an equilateral triangle are 60°

sin 60° = 33/x

0.8660 =33/x

x = 38.11 feet

Relation between the side and the altitude of the equilateral triangle can be given as,

[tex]a=\dfrac{2}{\sqrt{3} } h[/tex]

The length of the side of the equilateral triangle is 38.105 feet.

When all the three sides and all the three angle of a triangle are equal, then the triangle is known as Equilateral triangle.  

Relation between the side and the altitude of the equilateral triangle can be given as,

[tex]a=\dfrac{2}{\sqrt{3} } h[/tex]

Here, [tex]a[/tex] is the side of the equilateral triangle and h is the altitude of the equilateral triangle

Given information-

Altitude of the equilateral triangle is 33 feet.

Put the value of altitude in above formula to find the length of the side of the equilateral triangle. Thus,

[tex]a=\dfrac{2}{\sqrt{3} } \times33\\a=38.105[/tex]

Thus the length of the side of the equilateral triangle is 38.105 feet.

Learn more about the equilateral triangle here;

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