help me please this is hardddd

Help Me Please This Is Hardddd

Answers

Answer 1

Answer:

4) C

5) A, B, and D

6) 0.99m+50

7) h=d/2

Step-by-step explanation:


Related Questions

A cylinder has a radius 3 inches and height 5 inches. A cone has the same radius and height. What is the volume of the cylinder

Answers

Given Information :-

A cylinder with following dimensions :

Radius = 3 inchesHeight = 5 inches

To Find :-

The volume of the cylinder

Formula Used :-

[tex] \qquad \star \: \underline{ \boxed{ \purple{\sf Volume_{Cylinder} = \pi {r}^{2} h}}} \: \star[/tex]

Where,

r = radius h = height

Solution :-

Putting the values in the formula, we get,

[tex] \sf \longrightarrow Volume=3.14 \times {(3)}^{2} \times 5 \\ \\ \\ \sf \longrightarrow Volume=3.14 \times 45 \: cm \: \: \: \: \: \\ \\ \\ \sf \longrightarrow \underline{ \boxed{ \green{ \frak{Volume= {141 .3 \: cm}^{3} }}}} \: \star \: \: \: \: \: \\ [/tex]

Thus, the volume of the cylinder is 141.3 cm³.

[tex] \underline{ \rule{230pt}{2pt}} \\ \\ [/tex]

Step-by-step explanation:

As it is given that, a cylinder has radius 3 inches and height 5 inches and we are to find the volume of the cylinder, also a extra information is given that is a cone has the same radius and height.

[tex] \: [/tex]

We know,

[tex]{ \longrightarrow\qquad{\frak {\pmb{Volume_{(cylinder) } = \pi {r}^{2}h }}}} \\ \\[/tex]

Where,

r is the radius of the cylinder.

h is the height of the cylinder.

Here, we will take the value of π as 3.14 approximately .

[tex] \: [/tex]

Now, we will substitute the given values in the formula :

[tex] \: [/tex]

[tex]{ \longrightarrow\qquad{\sf {\pmb{Volume_{(cylinder) } = 3.14 \times ( {3})^{2} \times 5 }}}} \\ \\[/tex]

[tex]{ \longrightarrow\qquad{\sf {\pmb{Volume_{(cylinder) } = 3.14 \times 9 \times 5 }}}} \\ \\[/tex]

[tex]{ \longrightarrow\qquad{\sf {\pmb{Volume_{(cylinder) } = 3.14 \times 45 }}}} \\ \\[/tex]

[tex]{ \longrightarrow\qquad{\frak {\pmb{Volume_{(cylinder) } = 141.3 }}}} \\ \\[/tex]

Note :

Answer might be different if we take the value of π as 22/7 .

An electrician leans an extension ladder against the outside wall of a house so that it
reaches an electric box 31 feet up. The ladder makes an angle of 78° with the ground.
Find the length of the ladder. Round your answer to the nearest tenth of a foot if
a
necessary.

Answers

Answer:

50.41 feet

Step-by-step explanation:

Hypotenuse = length of ladder

31 = opposite side of angle

sin(angle) = (opposite)/(hypotenuse)

sin(78) = (36)/(hypotenuse)

hypotenuse = sin(78)/ (36)

hypotenuse = 50.41 feet

length of ladder = 50.41 feet

2. Find the probability of throwing a 10 with a pair of dice and choosing a red from a standard deck of cards.​

Answers

Answer:

Step-by-step explanation:

You can get 10 with a pair of dice with:
4 + 6, 6 + 4, 5 + 5

out of a possibile 36 results

There are 52 cards in a standard deck of cards. Reds make up half of them (hearts and diamonds) , meaning theres a 50/50 chance of pulling red

10/36 * 1/2 = 5/36 chance of throwing 10 + pulling red

Determine the zeros of x^2 + 19x = 6x - 30

Answers

Answer:

The number of Zeros (roots) is

-3 and -10

Step-by-step explanation:

x^2 + 19x = 6x - 30

PLEASE PLEWSE PLEASE HELP

Answers

Answer:

C) 63°

Step-by-step explanation:

Just add the numbers up together to get your solution

PLS ANSWER THIS FAST
WILL MARK BRAINLIEST

Answers

The actual measurement of the length of the colored face of the aquarium is D. 36 inches by 14 inches.

What is a scale drawing?

Generally, a scale drawing is described as a drawing that has been reduced or enlarged from its original size to a specified scale.

For instance, the scale of the drawing of the original aquarium is ¹/16.  This implies that the length, width, and height have been scaled down to one-sixteenth of the original size.

Data and Calculations:

Scale drawing = ¹/16 of the original aquarium

Length of the colored face = 2¹/₄ inches

The actual length of the colored face = 36 inches (2¹/₄ inches x 16)

Thus, the actual measurement of the length of the colored face of the aquarium is D. 36 inches by 14 inches.

Learn more about measurements at https://brainly.com/question/24842282

Which expression is not equivalent to 2\3 x 4?

Answers

Answer:

8/3

Step-by-step explanation:

I don’t know what is the least common factor of 18 and 12.

Answers

Answer:

the common factors for both are 1,2,3,6

Please look at the attachments I posted. Anyone help me please

Answers

Answer:

This will be option D

Replace the k with -1/2 and f(x) with x^2

this will look like -1/2*x^2

plug this into a graphing website such as Desmos

Mike spins a spinner and flips a coin. What
is the probability of getting E on the spinner
and the coin landing on heads?

Answers

Answer:

3/16

Step-by-step explanation:

The probability of spining an E is 3/8 and the probability of fliping heads on a coin is 1/2 so the probablility of both those things happening is 1/2*(3/8) or 3/16

A printer can print 14 pages in 28 sec.
The rate in lowest terms is____?

Answers

Answer:

1/2 or 0.5 :)

Step-by-step explanation:

We can divide to see lower forns :)

14/28 = 7/14 = 1/2

Have an amazing day!!

Please rate and mark brainliest!!

Answer:

2 pages every 7 seconds, divide by the common denominator which is 7 to get the answer

Select the correct answer.
The parallelogram has an area of 20 square inches. What are the dimensions of the parallelogram, to the nearest hundredth of an inch?
40°
4 in
h
OA. I = 2.57 in, h = 7.78 in
OB. I = 6.22 in, h = 3.23 in

Answers

The dimensions of the parallelogram to the nearest hundredth of an inch are 6.54 in and 3.06 in.

What are the dimensions of the parallelogram?

Trigonometry would be used to determine the base and the length of the parallelogram.

Base: cos 40 = adjacent /hypotenuse

0,7660 = adjacent / 4

adjacent = 4 x 0.7660 = 3.06 in

Length = area / base

20 / 3.06 = 6.54 in

To learn more about parallelograms, please check: https://brainly.com/question/15259486

60 PTS PLS HELP! Data Set 1 has a mean of 152.7 and a MAD of 2.5.

Data Set 2 has a mean of 170.2 and a MAD of 1.7.

What can be concluded about the two distributions?

Select each correct answer.


The means-to-MAD ratio is 10.

The distributions are different.

The distributions are somewhat similar.

The means-to-MAD ratio is 7.

Answers

Answer:

the means to and reroof is 10

the distributions are somewhat similar

Step-by-step explanation:

Answer:

the distributions are different


cm
1
cm
3x
**2 cm
1. Write an expression that represents the perimeter of the figure and simplify.
3x2 +7X+7
A.
3x?
O
7x? +7x +7
B.
3x?
O
x2+2x +7
C.

3x2 + 7x +21
D.
3x?

Answers

Answer:

The answer is D

Step-by-step explanation:

(7/x² × x²)+(1/3×x²)+(x+2/x × x²)

(7 + x/3 + x²+2x) times 3 to eliminate the 3 under x/3

so u will get 21+x+3x²+6x

Final answer = 3x²+7x+21

Write an algebraic expression for the following word phrase.
The quotient of and x

Answers

The quotient of 5 and x is greater than 10

The value of mathematical expression is,

⇒ 55 ÷ x

⇒ 55 / x

What is Division method?

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications. For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

Given that;

The word phrase is,

''The quotient of 55 and x.''

Now, The value of mathematical expression is,

''The quotient of 55 and x.''

⇒ 55 ÷ x

⇒ 55 / x

Therefore, The value of mathematical expression is,

⇒ 55 ÷ x

⇒ 55 / x

Learn more about the divide visit:

https://brainly.com/question/28119824

#SPJ7

I don't understand someone please help ​

Answers

To find the surface area, we must find the area of each shape.

There are four (4) rectangles: their lengths are 5; their widths are 3.

The formula for the area of a rectangle is length times width.

5 times 3 = 15.

Since there are 4 rectangles total, we can multiply 15 by 4.

15 times 4 is 60.

Next, we have two (2) squares.

The dimensions of the square are 3 by 3.

3 times 3 is 9.

Since we have 2 squares, we can multiply the area of 1 square, 9, by 2.

9 times 2 is 18.

So, the areas of the rectangles are 60, and the areas of the squares are 18.

60 + 18 = 78.

So, the final answer is 78.

find square root of
[tex]244[/tex]

Answers

Answer:

15.6204994

Step-by-step explanation:

[tex]15.6204994^{2} = 244\\so\\\sqrt{244} = 15.6204994[/tex]

hope this helps!


The average value of the function y = x² – 1 on [0, 12] is

Answers

Answer:

47.

Step-by-step explanation:

1) the rule:

[tex]f_{avr}=\frac{1}{b-a} \int\limits^b_a {f(x)} \, dx ,[/tex]

where a;b are 0 and 12, f(x)=x²-1.

2) according to the rule above:

[tex]f_{avr}=\frac{1}{12-0} \int\limits^{12}_0 {(x^2-1)} \, dx=\frac{1}{12}(\frac{x^3}{3}-x)|^{12}_0=48-1=47.[/tex]

A grain silo has a cylindrical shape. Its radius is 9 ft, and its height is 41 ft. What is the volume of the silo?
Use the value 3.14 for it, and round your answer to the nearest whole number.
Be sure to include the correct unit in your answer.

Answers

Answer:

As Per Provided Information

Radius of cylindrical shape silo 9 ft

Height of cylindrical shape silo 41 ft

We have been asked to determine the volume of cylindrical silo .

[tex] \boxed{\sf \: Volume_{(Cylindrical\:Silo)} = \pi {r}^{2}h}[/tex]

Substituting the given value in above formula and we obtain

[tex] \qquad\longrightarrow\sf \:Volume_{(Cylindrical\:Silo)} = 3.14 \times {9}^{2} \times 41 \\ \\ \\ \qquad\longrightarrow\sf \:Volume_{(Cylindrical\:Silo)} = 3.14 \times 81 \times 41 \\ \\ \\ \qquad\longrightarrow\sf \:Volume_{(Cylindrical\:Silo)} = 3.14 \times 3321 \\ \\ \\ \qquad\longrightarrow\sf \:Volume_{(Cylindrical\:Silo)} = 10427.94 \: {ft}^{3} \\ \\ \\ \qquad\longrightarrow\sf \:Volume_{(Cylindrical\:Silo)} = 10428 \: {ft}^{3}[/tex]

Answer:

Volume is 10428 cubic ft.

Step-by-step explanation:

Given :-

Radius of grain silo is 9ft and height is 41ft

To find:-

Volume of grain silo

Solution:-

Volume of cylindrical grain silo :- πr²h

Putting the known values ,

Volume:- 3.14 × 9² × 41 cubic ft.

Volume :- 10427.94 cubic ft.

rounding off to nearest whole number ,

Volume :- 10428 cubic ft.

6. The length of Garden B is 3 more than the length of Garden A. Write, and solve the equation
you can use to find the length of Garden A.

Answers

Answer:

B = A + 3

Step-by-step explanation:

Let B be the length of Garden B and A the length of Garden A.

We are told that B = A + 3

We can use this equation to find the length of Garden B.

Question 1
1 pts
A private parking lot in downtown Philadelphia is being built. It's 120' long by 75' wide. To put a
fence around it, the construction company will need at least 390' of fencing material. True or false?

Answers

We will see that the perimeter of the rectangle is exactly 390 ft, so the statement is true.

Is the fence enough?

For a rectangle of length L and width W, the perimeter is given by:

P = 2*(L + W).

In this case, we know that:

L = 120 ft

W = 75 ft

Replacing that on the perimeter equation we get:

P = 2*(120 ft + 75  ft) = 390 ft

So the perimeter is exactly 390 ft, meaning that to put a fence around the parking lot the company will need at least 390 ft of fence.

So the statement is correct.

If you want to learn more about perimeters, you can read:

https://brainly.com/question/24571594

Solve the simultaneous equations
4x + 5y = 4
2x - y = 9
Show clear algebraic working.

Answers

Answer:

[tex]x= \dfrac 72, ~~y= -2[/tex]

Step by step explanation:

[tex]4x+5y=4~~~...(i)\\\\2x-y=9~~~...(ii)\\\\\text{Multiply eq (ii) by 2 to isolate x:}\\\\4x-2y=18~~~.....(iii)\\\\(iii)-(i):\\\\4x-2y-4x-5y=18-4\\\\\implies -7y=14\\\\\implies y = -\dfrac{14}7 = -2\\\\\text{Substitute}~ y=-2~ \text{in equation (iii):}\\\\4x-2(-2) = 18\\\\\implies 4x +4 = 18\\\\\implies 4x = 18-4\\\\\implies 4x = 14\\\\\implies x = \dfrac{14}4 = \dfrac 72\\\\\text{Hence}~ (x,y) =\left(\dfrac 72 , -2 \right)[/tex]

Step-by-step explanation:

4x+5y=4 (equation 1)

2x-y=9 (equation2)

solving equation 1 and 2 and multiplying equation 2 by 2

4x+5y=4

4x-2y=18

- + -

________

7y= -14

y= -2

putting the value of y in equation 2

2x-y=9

2x+2=9

2x=7

x=3.5

Which of the following statements is true?
The meter is a unit of volume in the U.S. customary system.
The foot is a unit of length in the metric system.
The gram is a unit of mass in the metric system.
The liter is a unit of volume in the U. S. customary system.

Answers

Answer:

Step-by-step explanation: the meter is a unit of value in the US customary system

Answer: The gram is a unit of mass in the metric system

Help picture below problem 15

Answers

Answer:

B. Pentagon

Step-by-step explanation:

A Pentagon is a polygon with 5 sides like this one.

Hope that helps!

Which of the following polynomials corresponds to the subtraction of the multivariate polynomials 19x3+
44x2y + 17 and y3 - 11xy2 + 2x2y - 13x3?
31X3.6 x3 +44 x2y + 11 xy2 +17
32 x3 - y3 + 42 x2y + 11 xy2 + 17
y3 - 6x3 + 33 x2y+ 2 xy2 + 17
20 x2 - y2 + 33 x2y+ 2 xy2 + 17

Answers

Answer:

  (b)  32x^3 - y^3 + 42x^2y + 11xy^2 + 17

Step-by-step explanation:

To find the difference of the polynomials, write the equation expressing the difference, then simplify.

  (19x^3 +44x^2y + 17) - (y^3 -11xy^2 +2x^2y -13x^3)

  = (19 -(-13))x^3 -y^3 +(44 -2)x^2y +(-11)xy^2 +17

  = 32x^3 -y^3 +42x^2y -11xy^2 +17

18/5 divided by 3/25
[tex] \frac{18}{5} \div \frac{3}{25} [/tex]

Answers

Answer:

30

Step-by-step explanation:

There are a few different ways we can approach this problem.  

The easiest way is to flip the second fraction and multiply:

[tex]\dfrac{18}{5} \div \dfrac{3}{25}=\dfrac{18}{5} \times \dfrac{25}{3}=\dfrac{18 \times 25}{5 \times 3}[/tex]

To do this without a calculator, rewrite 18 as 6 x 3 and 25 as 5 x 5:

[tex]\dfrac{18 \times 25}{5 \times 3}=\dfrac{6 \times 3 \times 5 \times 5}{5 \times 3}[/tex]

Now we can cancel out the common factors of 5 and 3 from the numerator and denominator, and are left with:

[tex]\implies 6 \times 5 =30[/tex]

The quotient obtained from the division of given fractions is 30.

Given that, 18/5 divided by 3/25.

Dividing fractions is nothing but multiplying the fractions by reversing one of the two fraction numbers or by writing the reciprocal of one of the fractions. By reciprocal we mean, that if a fraction is given as a/b, then the reciprocal of it will b/a.

Here, 18/5 ÷ 3/25

= 18/5 × 25/3

= 6/1 × 5/1

= 30/1

Therefore, the quotient obtained from the division of given fractions is 30.

Learn more about the division of fractions here:

brainly.com/question/17205173.

#SPJ6

ARGENTTTT!!!!
Which statement describes the difference in the distance
travelled by the two cars when 15 gallons of gasoline is used?
Both cars will have travelled the same distance.

Answers

Answer:

  D.  A travels 90 miles more

Step-by-step explanation:

The graph tells you Car A travels 140 miles on 5 gallons of gas. (There is a point marked there on the graph.)

The table tells you Car B travels 99 miles on 4.5 gallons of gas. When that is multiplied by 5/4.5 = 10/9 to get the equivalent for 5 gallons, we see that Car B could travel 10/9 × 99 = 110 miles on 5 gallons of gas.

__

Already on 5 gallons of gas, Car A has traveled 30 miles farther. The only sensible answer choice is ...

  D.  Car A travelled 90 miles more than Car B [when 15 gallons are used].

From a club of 20 people, in how many ways can a group of three members be selected to attend a conference?​

Answers

Answer:    1140

=============================================================

Reason:

There are 20 ways to pick the first person, 19 for the next, and 18 for the last. We count down by one each time we fill up a slot since we cannot reselect any person more than once.

If order mattered, then we'd have 20*19*18 = 6840 permutations.

However, order does not matter because no member has a special seat or role. The individual members don't matter and instead it's all about the group.

Notice that for any group of 3 people, there are 3*2*1 = 6 ways to arrange such individuals. We have to divide by 6 to go from 6840 permutations to 6840/6 = 1140 combinations.

-------------------------

Here's a more formulaic approach using the nCr combination formula.

Plug in n = 20 and r = 3

[tex]n C r = \frac{n!}{r!(n-r)!}\\\\20 C 3 = \frac{20!}{3!*(20-3)!}\\\\20 C 3 = \frac{20!}{3!*17!}\\\\20 C 3 = \frac{20*19*18*17!}{3!*17!}\\\\ 20 C 3 = \frac{20*19*18}{3!}\\\\ 20 C 3 = \frac{20*19*18}{3*2*1}\\\\ 20 C 3 = \frac{6840}{6}\\\\ 20 C 3 = 1140\\\\[/tex]

I’m confused can someone help?

Answers

Answer:

(a) check the first one, and the second one

(b) check the last one

Step-by-step explanation:

This is quite easy actually.

(A)

3x+24 = 3 * x + 3 * 8

3(x+8) using distribute property.

3x + 24

You cannot simplify 3x+24 any further

And 3(8x+1) just doesn't work

since it's multiplying

The "*" is an X sign

(B)

The first, second, and third are not correct

But the last one is.

This is a picture of a cube and the net for the cube.

What is the surface area of the cube?​

Answers

Answer:

I don’t get it

Step-by-step explanation:

I think it is 5

its 54 also for some reason my comment keeps getting deleted for saying 54??

Other Questions
calculus, question 5 to 5a Last Quistion Sorry i will mark as branlyist if corecct thank you Which equation shows how frequency is related to velocity and wavelength? What is the molar mass of a 3.228 g sample of a gas if it occupies 3.21 L at 298 K and 1.25 atm? The expression i10 is equivalent to What is one of the main responsibilities of the Environmental Protection Agency (EPA)?writing environmental regulations for businesses and people to followdesigning advertisements to persuade people to protect the environmentplanting trees in areas destroyed by wildfiresaiding people when natural disasters like hurricanes occur Which of the following is the name for a hollow depression in which drainage collects?(1 point) 1.cave 2.sinkhole 3.v-shaped valley 4.canyon I need help with 4 and 5 I really dont get it QuestionI have 30 red marbles, 28 blue marbles, 13 green marbles, and 6 magenta marbles. What is the probability I pull 3 blue marbles? Write as a fraction, no need to simplify. I dont get 2 and 3 I really need help HELP HELP HELP I'LL GIVE BRAINLISET (q020) in contemporary u.s. society, men suffer more from gender inequality as individuals, while women are harmed more as a group. this is because what is the closest meaning of the underlined phrase What is the value of the 9 3/4- 2 1/5 +1/2 nematodes and arthropods are the largest ecdysozoan phyla. which of the following statements are true? select all that apply. Part A Write a numerical expression to represent the approximate perimeter of triangle FGH in terms of the lengths of its sides.side FG and FH are 5.8 and side HG is 6 units Solve each of the following equations. Show its solution set on the number line. |3x-4(x+1)|=2 The main idea of a text can also be called its conclusion,FalseO True Estimate the measure of angle 1 The length of a picture frame is 7 inches more than the width. For what values of x is the perimeter of the picture frame greater than 150 inches.