Mathematics College

A stereo speaker in the shape of a triangular pyramid has a height of 8.25 inches. The area of the base of the speaker is 22 square inches. What is the volume of the speaker in cubic inches?
A. 60.5 in3

B. 181.5 in3

C. 90.75 in3

D. 243 in3

Answers

Answer 1

Answer:

A. 60.5 [tex]in^{3}[/tex]

Step-by-step explanation:

A = 1/3(area of base)(h)

= 1/3(22)(8.25)

= 60.5 [tex]in^{3}[/tex]

Answer 2
The answer:

Your answer is A

Related Questions

Please Help! (picture)

Answers

Step-by-step explanation:

f(g(x))

f(x-1)

(x-1)^2

x^2 -2x + 1

rewrite
3/20
and
2/15
so that they have a common denominator.

Answers

Answer:

9/60 and 8/60

Step-by-step explanation:

They both have the number 60 in common

Share out 184 snails between 8 salamanders.how many snails does each salamander get.

Answers

The answer is 23 hope this helped


x - 2y = 0
2x + y = 5

Answers

x - 2y = 0
x = 2y

2x+ y = 5
Replace x
2(2y) + y = 5
4y + y = 5
5 y = 5
y = 5/5 = 1

x - 2y = 0
x - 2(1) = 0
x - 2 = 0
x = 2

x=2 and y=1

You wish to test H 0 : μ d = 0 versus H a : μ d < 0 at a significance level of 0.10. For the context of this problem, μ d = μ 2 − μ 1 where the first data set represents a pre-test and the second data set represents a post-test. You obtain pre-test and post-test samples for n d = 28 subjects. The average difference (post - pre) is ¯ x d = − 4.3 with a standard deviation of the differences of s d = 45.5 .
What is the test statistic?

Answers

Answer:

0.5

Step-by-step explanation:

Given :

H0 : μd = 0 VS H1 : μd ≠ 0

Test statistic :

xd / (sd ÷ √n)

Where ;

xd = mean difference = -4.3

sd = standard deviation of difference = 45.5

n = sample size = 28

The test statistic is thus :

-4.3 / (45.5 / √28)

-4.3 / 8.5986917

= 0.5000760

Hence, test statistic = 0.5

What is sin 0 when cot 0 = {?
0
(1,0)
sin e
Rationalize the denominator if necessary.

Answers

9514 1404 393

Answer:

  (√6)/3

Step-by-step explanation:

The relation between cot(x) and sin(x) is ...

  sin(x) = 1/√(cot(x)^2 +1)

Filling in the given value, we have ...

  [tex]\displaystyle\sin{\theta}=\frac{1}{\sqrt{\left(\frac{\sqrt{2}}{2}\right)^2+1}}=\sqrt{\frac{2}{3}}\\\\\boxed{\sin{\theta}=\frac{\sqrt{6}}{3}}[/tex]

Answer:

(✓6)/ 3 is the answer.

Step-by-step explanation:

#CarryOnLearning

A cylinder soup has a radius of 1,6 in and is 5/7 in. tall what is the volume

Answers

Answer:

[tex]V=0.0623\ inch^3[/tex]

Step-by-step explanation:

Given that,

The radius of cylinder, r = 1/6 inch

The height of the cylinder, h = 5/7 inch

We need to find the volume of the cylinder. The formula for the volume of a cylinder is given by :

[tex]V=\pi r^2 h\\\\=3.14\times (\dfrac{1}{6})^2\times \dfrac{5}{7}\\\\V=0.0623\ inch^3[/tex]

So, the volume of the cylinder is equal to [tex]0.0623\ inch^3[/tex].

A card game requires that you have a sum of 5 in order to win. Based on the cards shown below, will Cameron win the game? Look at the picture above​

Answers

Answer:

D

Step-by-step explanation:

helppp meee plssssss

Answers

Answer:

[tex]y\leq -6[/tex]

Step-by-step explanation:

[tex]\frac{1}{2}y \leq -3[/tex]

Our inequality requires first to solve for y.

To solve for a variable, we must isolate it.

In this case, first, we can multiple by the inverse of the fraction which is 2.

[tex]\frac{1}{2}y\leq -3\\[/tex]

[tex]2(\frac{1}{2}y)\leq -3(2) \\[/tex]

1*y=y and -3*2=-6

So our inequality stands like this -

[tex]y\leq -6[/tex]

When graphing, it must look like this:

a cylinder shaped water pitcher has a radius of 5 inches and a height of 12.5 inches find the surface area of the pitcher
A.5495 in² B. 54.95 in²
C.549.5 in² D. 5.495 in²​

Answers

Question:-

A cylinder shaped water pitcher has a radius of 5 inches and a height of 12.5 inches. Find the surface area of the pitcher.

Answer:-

Given:-

[tex] \bullet [/tex] Radius (r) of a cylinder shaped water pitcher = 5 inches.

[tex] \bullet [/tex] Height (h) of a cylinder shaped water pitcher = 12.5 inches.

To Find:-

The surface area of the pitcher.

Solution:-

We know,

Formula of Surface area of a cylinder is 2πr(r + h) sq. units.

So,

Surface area of the pitcher = 2 × 3.14 × 5(5 + 12.5)

Surface area of the pitcher = 31.4 × 17.5

Surface area of the pitcher = 549.5 in²

[tex] \therefore [/tex] The surface area of the pitcher is 549.5 in².

Hence, the option (C) 549.5 in² is correct. [Answer]

The surface area of the cylinder is  549.50  in².

What is the surface area of the cylinder?

A cylinder is a three-dimensional object. It is made up of a prism with a circular base. The total surface area is the sum of the areas of the faces or surfaces of a 3-dimensional object

Total surface area = 2πr(r + h)

Where:

π = 3.14r = 5 h = height

2 x 3.14 x 5 (5 + 12.5) = 549.50  in²

Solve (x-3)^2=5 I need help it’s on a p e x

Answers

Answer:

x= 3 + or - √5

hope this helps

have a good day :)

Step-by-step explanation:

35% of what number is 91?
I need step by step too

Answers

Answer:

29.12

Step-by-step explanation:

91 ×35/100 =2912/100

so 29.12

260. 91 divided by .35(35%)

Simplify the Expression and EXPLAIN what you did and WHY.

-3(4m+3)+2m

Answers

Answer:

-10m-9

Step-by-step explanation:

open the bracket by multiplication

-3 × 4m= -12m

-3 × 3= - 9

-12m - 9 +2m

arrange like terms together

-12m +2m -9

-10m -9

can someone explain how to solve and graph this step-by-step?​

Answers

(x,y)=(2,1) where the two lines intercept
so for the first equation you go on the y line and dot -4 then count up 5 times then right 2 times since it’s rise over run
for the second line start at positive 3 on the y line then it’s -1/1 which is up once and left once cause of the negative

A writer buys a new laptop for $1866. Every year the laptop decreases in value by 20%.

Answers

Answer:

the answer is A

A function that represents a $1866 laptop that decreases in value by 20% each year is f(n)=1866(1.2)ⁿ.

What is the function?

Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.

Given that,

$1866 laptop that decreases in value by 20% each year.

Here, f(n)=1866(1+20%)ⁿ, where n is the number of years

f(n)=1866(1+20/100)ⁿ

f(n)=1866(1.2)ⁿ

Therefore, a function that represents a $1866 laptop that decreases in value by 20% each year is f(n)=1866(1.2)ⁿ.

To learn more about the function visit:

brainly.com/question/28303908.

#SPJ2

Christine's age is 6 more than Ken's age. Three times Ken's age plus 5 times
Christine's Age is equal to 46. How old is Christine?

Answers

Answer:

6x3+5=23

Step-by-step explanation:

Find the product. Write the answer in scientific notation.
(5×10^−7)×(3×10^6)=
I GIVE BRANLIEST AND ALOT OF POINTS

Answers

Answer:

1.5

Step-by-step explanation:

Answer:

1.5

Step-by-step explanation:

a system of equations is shown x-2y=-5 2x+4y=14

Answers

Answer: here you go

Step-by-step explanation:

A) 2x + 4y = 14

B) 4x + y = 20

If you multiply equation A by -2, then when the equations are added, the x will be eliminated.

The solutions are:

X = 4.714285714285714

Y = 1.1428571428571428

HELP!!!!? ASP! PLSSSS #14

Answers

C) 54 is correct
Multiply all numbers! Mark with crown!

Write 34/5 as a mixed number. 4 5/6 3 4/5 6 4/5 6 5/4

Answers

Answer:

6 4/5

Step-by-step explanation:

-. For the event of rolling three standard fair 6-sided dice, find the following probabilities. Give all
answers as a simplified fraction.
The probability of rolling a sum of 8 or a sum of 12.
P(Sum is 8 u Sum is 12)


Answers

Answer:

23/108

Step-by-step explanation:

Remark

There are 6 * 6 * 6 = 216 ways that you can throw three dice. There are 21 different ways of throwing an 8There are 25 different ways of throwing a 12I'll list the eights. The 12s are done the same way.

Ways of making Eight

116125134143152161215224233242251314323332341413422431512521611

Answer

P(8) = 21 / 216

P(12) = 25/ 216

P(8 or 12) = 21/216 + 25/216

P(8 or 12) = 46/216 = 23/108

what is the surface area, in square inches, of the container?

Answers

Answer:

62 in

Step-by-step explanation:

You can split up the rectangles and find the surface area of each on them add them

Hope this helps!


A circular flower garden has a radius of 19 ft that
has to be mulched. Each bag of mulch covers 32square feet. How
many bags of mulch are needed? Use TI = 3.14. Round to the
nearest whole number

Answers

Step-by-step explanation:

[tex]area \: of \: garden = \pi {r}^{2} \\ = 3.14 \times {19}^{2} \\ = 1133.54 \: {ft}^{2} \\ number \: of \: bags = \frac{area \: of \: garden}{area \: covered\: by \: bag} \\ = \frac{1133.54}{32} \\ = 36 \: bags[/tex]

Define the following terms using your own words. (2-3 sentences only)
1. Frequency
2 Class size
3. Ogive
4. Variance
5. Range​

Answers

Answer:

Frequency: the rate at which something occurs over a particular period of time or in a given sample.Class size :Class size is the average number of students per class, calculated by dividing the number of students enrolled by the number of classes..O give :Ogive is the curve which is constructed by plotting cumulative frequency data on the graph paper, in the form of a smooth curve.Variance: The term variance refers to a statistical measurement of the spread between numbers in a data set. Range: The range, the difference between the largest value and the smallest value.

Historically, about ​53% of the population of a certain country believed that the​ planet's temperature was rising​ ("global warming"). A March 2010 poll wanted to determine whether this proportion had changed. The poll interviewed adults in the​ population, and said they believed that global warming was real.​ (Assume these adults represented a simple random​ sample.)

Required:
a. What percentage in the sample believed global warming was real in 2010?
b. Is this more or less than the historical 57%?

Answers

Answer:

(a) The proportion is 61.23%

(b) It is more than the historical 57%

Step-by-step explanation:

This question has missing details, and they are:

[tex]n = 926[/tex] ---- The Sample Adults

[tex]x = 567[/tex] -- Those that believe global warming was real

Solving (a): The proportion of those that believe.

This is calculated as:

[tex]p = \frac{x}{n}[/tex]

Substitute values for x and n

[tex]p = \frac{567}{926}[/tex]

[tex]p = 0.6123[/tex]

Express as percentage

[tex]p = 0.6123 * 100\%[/tex]

[tex]p = 61.23\%[/tex]

Solving (b) More or less than 57%

By comparison:

[tex]61.2\% > 57\%[/tex]

Hence, it is more than the historical 57%

Without establishing good credit, it would be most difficult to
A
find a job.
B
buy lunch.
с
buy a house.
D
make a minimum payment.

Answers

Answer:

It's gonna be C

Step-by-step explanation:

No explanation it's C.

Ann's rent increased from $1,200 to $1,350.
By what percent did her rent increase?

Answers

Answer: Percentage increase: 12.5%

Step-by-step explanation: (EXAMPLE)  percentage increase/decrease = (Vnew - Vold) / Vold × 100%

Example #1

Price percentage increase from old value of $1000 to new value of $1200 is caluclated by:

percentage increase = ($1200 - $1000) / $1000 × 100%

= 0.2 × 100% = 20%

Answer:

12.5%

Step-by-step explanation:

1350 - 1200 / |1200| × 100% =

150 / 1200 × 100 = 12.5%

Use the graph at the right. Find the vertices of the image of QRTW for a dilation with center​ (0,0) and a scale factor of 12.

Answers

Answer:

you need to insert the graph's picture lol

Step-by-step explanation:

Evaluate (a3)4
What is the answer please?

Answers

Answer: -3 to the fourth power means we are multiplying -3 four times. Hence answer is 81 and not -81

Step-by-step explanation:

The most expensive type of life insurance is

O limited-payment life insurance

O term insurance

O endowment life insurance

O whole-life insurance

Answers

Whole life insurance I think
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