gives the value of the expression b x 4 for b = 21?

Answers

Answer 1

Answer:

5

Step-by-step explanation:

Answer 2

Answer:

its A

Step-by-step explanation: i passed the test


Related Questions

5 time 6 is 30 but what is 5 time 123456789

Answers

Answer:

617283945?

Step-by-step explanation:

Answer:

617283945

Step-by-step explanation:

Simple: Use a Calculator

Then: Add an Answer

Ivan and Tanya share £150 in the ratio 4:1
Work out how much more Ivan gets compared to Tanya.
How much more does Ivan get?

Answers

Ivan=£120 &
Tanya=£30

The nth term of a sequence is 2n + 1
The nth term of a different sequence is 3n - 1

Work out the three numbers that are in both sequences and also between 20 and 40

Answers

Answer:

The three numbers are 23, 29 and 35.

Step-by-step explanation:

Given: The nth term of a sequence is 2n+1 and the nth term of a different sequence is 3n-1.

To find: The three numbers that are in both sequences and also between 20 and 40.

Consider both the sequences.

Put n = 11 in the nth term 2n+1, we get 23.

So, the 11th term of first sequence is 23.

Now put n = 8 in the nth term 3n-1, we get 23.

So, the 8th term of the second sequence is 23.

Therefore, first number that is in both sequence and lies between 20 and 40 is 23.

Now put n = 14 in the nth term 2n+1, we get 29.

So, the 14th term of first sequence is 29.

Put n = 10 in the nth term 3n-1, we get 29.

So, the 10th term of the second sequence is 29.

Therefore, second number that is in both sequence and lies between 20 and 40 is 29.

If we put n = 17 in the nth term 2n+1, then we get 35.

That is, 17th term of first sequence is 35.

Now we put n = 12 in the nth term 3n-1, then we get 35.

That is, 12th term of second sequence is 35.

So, third number that is in both sequence and lies between 20 and 40 is 35.

Hence, the three numbers that are in both sequences and also between 20 and 40 are 23, 29 and 35.

Mya bought 8 slices of bread for $2.40 at her local grocery store. How much would a
package with 12 slices cost at the price per slice?
Work Space

Answers

Answer: $3.60

Explanation:

2.40 ÷ 8 = 0.3 (3 cents per slice)

0.3 x 12 = 3.60

Answer:

Cost of package with 12 slices = $3.60

Step-by-step explanation:

Given that:

Cost of 8 slices of bread = $2.40

Unit rate per slice = [tex]\frac{2.40}{8}[/tex]

Unit rate per slice = $0.30 per slice

Cost of package with 12 slices = 12 * 0.30

Cost of package with 12 slices = $3.60

Hence,

Cost of package with 12 slices = $3.60

Jina wanted to study how the area of a rectangle changes with the length if it’s width is fixed. She computed the areas of several rectangles that have the same width and different lengths. She then employed the results and connected them with a line, as shown in the picture. The graph shows the area (in m2) versus the length (in m)
Find the range and domain for the functions shown.
(A). Domain:
(B). Range:

Answers

Answer:

The domain and the range of the function are, respectively:

[tex]Dom\{f\} = [0\,m,5\,m][/tex]

[tex]Ran\{f\} = [0\,m^{2}, 10\,m^{2}][/tex]

Step-by-step explanation:

Jina represented a function by a graphic approach, where the length, measured in meters, is the domain of the function, whereas the area, measured in square meters, is its range.

[tex]Dom\{f\} = [0\,m,5\,m][/tex]

[tex]Ran\{f\} = [0\,m^{2}, 10\,m^{2}][/tex]

Answer:

Step-by-step explanation:

Bradley owe's his parents $275. Every week, Bradley pays his parents back $55. Which function represents the
amount of money Bradley still owes his parents?

Answers

Answer:

The function f(x) = 275-55x represents the amount of money Bradley still owes.

Step-by-step explanation:

Given that:

Amount Bradley owes = $275

Amount Bradley pays each week = $55

Let,

x be the number of weeks.

We will subtract the amount paid every weeks from the total amount, where x is the number of weeks. The function will be given by;

f(x) = 275 - 55x

Hence,

The function f(x) = 275-55x represents the amount of money Bradley still owes.

Look at the table of values.
x
у
-6
11
- 2
7
0
5
4
1
8
-3
Which equation represents the relationship between x and y?
A. y = x-1
B. y = x - 4
C. y = 5 - x
D. y = 2x + 3

Answers

C. The equation applies for each group.

please help and u get a cookie

Answers

i got x^2+4x-1 and -24
so i would say no

Which mixed number is equivalent to the improper fraction?
14/9

Answers

Answer: 1 5/9 (one and five-ninths)

On a trip, you had to change your money from dollars to British pounds.
You got 560 pounds for 800 dollars.

Which is a unit rate that describes the exchange?




135 pounds per dollar


0.625 pounds per dollar


137 pounds per dollar


0.7 pound per dollar

Answers

Answer:

0.7 pound per dollar

Step-by-step explanation:

To find the pounds per dollar, divide the number of pounds by the number of dollars:

560/800

= 0.7

So, the unit rate is 0.7 pounds per dollar

Solve -2a - 5 > 3
Which graph shows solutions
I-Ready diagnostic

Answers

Answer:

Step-by-step explanation:

Here you go mate

Step 1

-2a-5>3  Equation/Question

Step 2

-2a-5>3  Simplify

-2a-5>3

Step 3

-2a-5>3  Divide

answer

a<-4

Hope this helps

In the diagram of collin ear points, LP=27, LM=NP, and MN=3
16. LM=
17. NP=
18. MP=
19. NL=

Answers

Answer:

Step-by-step explanation:

Given:

LP = 27

LM = NP

MN = 3

16). LP = LM + MN + NP

      27 = LM + 3 + LM

      27 = 3 + 2(LM)

      LM = 12

17). Since, LM = NP

      NP = 12

18). Since, MP = MN + NP

     MP = 3 + 12

     MP = 15

19). NL = LM + MN

     NL = 12 + 3

     NL = 15

y = 15x + 15 How do I interpret the slope and y-intercept?

Answers

Answer:

Look at explanation.

Step-by-step explanation:

The equation y = 15x + 15 is using the equation y = mx+b. m, or in this case 15, represents the slope of the equation. b, or in this case 15, represents the y-intercept.

Easy math (17 points))

Answers

Answer:

A-8.25  B-43.2 C-248.5

Step-by-step explanation:

Answer:

A-8.25

B-43.2

C-248.5

Step-by-step explanation:

Which expression is equivalent to 4.005−3.12?

Answers

Answer:

0.885

Step-by-step explanation:

pls help u dont have to explain that much​

Answers

Answer:

k = -7

Step-by-step explanation:

Given

x² - x - 42 = (x + k)(x + 6)

Required

Find k

x² - x - 42 = (x + k)(x + 6)

Expand the left hand side

x²-7x + 6x - 42 = (x + k)(x+ 6)

Factorize

x(x - 7) + 6(x- 7) = (x + k)(x+ 6)

Further factorize

(x - 7)(x + 6) = (x + k)(x + 6)

By comparison

x + k = x - 7

Subtract x from both sides

k = -7

here’s the other one

Answers

Answer:

it is A

Step-by-step explanation:

ank A contains 80 gallons of water in which 20 pounds of salt has been dissolved. Tank B contains30 gallons of water in which 5 pounds of salt has been dissolved. A brine mixture with a concentrationof 0.5 pounds of salt per gallon of water is pumped into tank A at the rate of 4 gallons per minute.The well-mixed solution is then pumped from tank A to tank B at the rate of 6 gallons per minute.The solution from tank B is also pumped through another pipe into tank A at the rate of 2 gallonsper minute, and the solution from tank B is also pumped out of the system at the rate of 4 gallons perminute. Find the differential equations with initial conditions for the amounts,x(t)andy(t), of saltin tanks A and B, respectively, at time t.

Answers

Answer:

[tex]\frac{dx}{dt}=2-\frac{3}{40}x+\frac{y}{15}[/tex]

[tex]\frac{dy}{dt}=\frac{3}{40}x-\frac{y}{5}[/tex]

x(0)=20,y(0)=5

Step-by-step explanation:

We are given that

Tank A contains water=80 gallons

x(0)=20,y(0)=5

Tank B contains water=30 gallons

Rate=4 gallon/min

Concentration of salt  is pumped into tank=0.5 pound /gallon of water

Solution pumped from tank A to tank B at the rate=6 gallons/min

Solution pumped from tank B to tank A at the rate=2gallon/min

Solution from tank B is pumped out of the system at the rate=4 gallon/min

We have to find the DE at time t

For x

Rate in=[tex]0.5\times 4+y(t)/30\times 2[/tex]

Rate in=[tex]2+y/15[/tex]

Rate out=[tex]x/80\times 6[/tex]

Rate out=3x/40[/tex]

[tex]\frac{dx}{dt}=[/tex]Rate in-Rate out

[tex]\frac{dx}{dt}=2+y/15-3x/40[/tex]

[tex]\frac{dx}{dt}=2-\frac{3}{40}x+\frac{y}{15}[/tex]

For y

Rate in=[tex]x/80\times 6[/tex]

Rate in=3/40x

Rate out=[tex]y/30\times (4+2)[/tex]

Rate out=y/5

[tex]\frac{dy}{dt}=[/tex]Rate in-Rate out

[tex]\frac{dy}{dt}=\frac{3}{40}x-\frac{y}{5}[/tex]

Add and Subtract mixed numbers. Find the sum or difference in simplest form. 31/2 - 1 1/2

Answers

3 and 1/2 - 1 and 1/2
= (concert to an improper fraction and then subtract)
= 7/2 - 3/2
= 4/2
= 2

carlos put a total of 1/8 lb of gravel into 6 fishtanks he put the same amount of gravel into each tank how many pounds of gravel did carlos put into each fish tank

Answers

Answer:

(1/8) / 6 =  

1/8 * 1/6 =

1/48 of a lb per fish tank <==

plz give brainlest

Step-by-step explanation:

Calculator
What is the value of x?
10
Enter your answer in the box
6

Answers

Answer:

x = 8

Step-by-step explanation:

hchkcckxkgkzkupvouuocouc

USING PYTHAGORAS THEOREM

h²=p²+b²

10²=x²+6²

10²-6²=x²

100-36=x²

x= \sqrt{64}

x=8

So x=8

Cooper runs a farm stand that sells apples and grapes. Each pound of apples sells for $3 and each pound of grapes sells for $2.25. Cooper sold 3 times as many pounds of apples as pounds of grapes and he made $180 altogether. Graphically solve a system of equations in order to determine the number of pounds of apples sold, x,x, and the number of pounds of grapes sold, yy.

Answers

Answer:

The answer seems like it's 400 but i'm not 100% sure.

Step-by-step explanation:

Which of the following statements are true of the graph of the function f(x)= (x+5)(x-3).
1.) The graph has a relative minimum
2.)The graph has a relative maximum
3.)The graph has an x-intercept at (5,0)
4.)The graph has an x-intercept at (3,0)
5.)The graph has a y-intercept at (0,-15)
6.) The axis of symmetry is x=-2

Answers

Answer:

4 is the correct answer

Step-by-step explanation:

y=(x+5)(x-3)

so x intercept means the value of x when y is zero

0=(x+5)(x-3)

x+5=0 so x=-5

x-3=0 so x=3

A rock is thrown upwards from the edge of a 52foot cliff and eventually falls to the ground. The graph below shows the height ,y, of the rock from the ground after x seconds.
For which interval is the rocks height always increasing ?

Answers

The interval for which the rock's height always increasing will be 0 < x < 3. Then the correct option is A.

The complete question is attached below.

What is a function?

A statement, principle, or policy that creates the linkage between two variables is known as a function.

A rock is thrown upwards from the edge of a 52 feet cliff and eventually falls to the ground.

The graph below shows the height (y), of the rock from the ground after (x) seconds.

The graph of the function is given below.

Then the interval for which the rock's height always increasing will be 0 < x < 3.

Then the correct option is A.

More about the function link is given below.

https://brainly.com/question/5245372

#SPJ1

Give the coordinates of each transformation of (2, –3)
1. horizontal translation of 5
2.vertical translation of –1
3.reflection across the x-­axis
4. reflection across the y­-axis

Answers

Answer:

Step-by-step explanation:

1). The graph of y=f(x) is translated 3 units to the right. The equation that ... 2) The graph of y=g(x) is transformed by horizontally expanding it by a factor of 35 and translated 5 units to the left. ... -reflection over x- axis.

A toy company is releasing a new catapult for water balloons that launches them at 9.8 meters per second from a stand 0.6 meters tall. The function f(x) = −4.9x2 + 9.8x + 0.6 describes the path of the water balloon, where x is the amount of time since the launch.

While the mathematical range is y ≤ 5.5, how does the reasonable range compare?
The reasonable range is limited to y ≥ 0.
The reasonable range is limited to y ≥ 0.6.
The reasonable range is limited to 0 ≤ y ≤ 5.5.
The reasonable range is limited to 0.6 ≤ y ≤ 5.5.

Answers

Answer: The answer is D

Step-by-step explanation: got it form edge

Answer:

its the 3rd option actually The reasonable range is limited to 0 ≤ y ≤ 5.5.

Step-by-step explanation:

edge

What is the amount of tax on a pair of shoes that cost $75.00, if the tax rate is 9%

Answers

Answer: The tax would be $6.75.

The tax would be $6.75...
Take $75 and multiply by.09

5 2/3+m=9 3/4 evaluate

Answers

Answer:

m=4[tex]\frac{1}{12\\}[/tex]

Step-by-step explanation:

Basic math

Pretty easy

Have a wonderful day

factor polynomial
x^ + 9x + 20​

Answers

(x+4)(x+5) is the factored form

B is the midpoint of ACand E is the midpoint of BD. If A(-9, -4), C(-1, 6), and E(-4, -3), find

the coordinates of D.

Answers

Answer:

[tex]Solution,\\Midpoint of coordinates (a ,b) and (c,d) is given by:\\(x,y) = (\frac{a+b}{2} , \frac{c+d}{2}) \\Therefore, coordinate of B is\\(\frac{-9-1}{2},\frac{-4+6}{2}) = (\frac{-8}{2},\frac{2}{2}) = (-4 , 1)[/tex]

[tex]Similarly,\\E(4, -3) = (\frac{-4+x}{2},\frac{1+y}{2}) where, (x,y) are the coordinates of D\\or, 4=\frac{x-4}{2} and -3 = \frac{y+1}{2}\\or, 8 = x - 4 and -6 = y+1\\or, x= 12 and y = -5\\Therefore, the coordinates of D are (12,-5)[/tex]

Other Questions
The formula: y-y1 = m (x-x1) is known as: Find the solution of the system of equations. 9x +y = 28 3x + 3y = -12 Which is not a characteristic of a Prokaryote?A) SimpleB) Has a nucleusC) Replicates via cloningD) Always single cell What two main ways cause genetic disorders? An ant can travel at a constant speed of 980 inches every 5 minutes. At this rate, how far can the ant travel in 7 minutes? How does the writer use language here to present the Wildlings and the man waiting to be executed? Find the sum of the following series. Round to the nearest hundredth if necessary. 4 + 24 + 144 +... + 6718464 What is the framework for people who is surviving in the west side of east bengal near the southern asia of the past in 1000bc A first year student deposits $250 into a savings account at the Owl Credit Union at Dundalk High School paying an annual interest rate of2%. If the money remains untouched until graduation, how much money will they have in 4 years? Round your answer to the nearest centor dollar and enter the amount in the space below.Amount in 4 years: S Peter's recipe for lemonade makes 48 cups of the drink. Which equation can be usedto find how many gallons of lemonade Peter's recipe makes? How did Dorothy defeat the winkies The hyphenated nouns hop-scotch and jump-rope serve which of thefollowing poetic functions?A. They display assonance and consonance, respectively.B. They rhyme.C. They suggest an allusion to the goat-footed man.D. They show onomatopoeia.E. They interrupt the children's play. Which type of expenses does nonessential spending include?A. Monthly mortgage paymentsB. Electricity in a homeC. Luxury goods like video gamesD. Interest paid on loansSUBMIT Megan wants to post a picture of her and her friend Jennifer on her social media page. What should Megan do before she posts the picture?A. Add a caption.B. Ask her friend for permission. C. Make sure she looks good. D. Edit the picture using Photoshop. What was still in full force until pearl harbor?A. The dust bowlB. The great depressionC. The roaring twentiesD. ProhibitionPLZ HELP FINAL EXAM!! I have an social studies project due 1/25 mine is about the quartering act if anybody could drop down some facts about it. What growing division between wealthy businessmen and their workers were becoming apparent in the early capitalist economy? Plz help me. Which of the following sentences uses the word whet correctly? The butcher whetted the knife in order to cut the meat more easily. The woodcutter whetted the axe until the tree fell. The knife-maker put on his raincoat because it was whet outside. The surgeon whetted his hands with soap before operating. Can someone pls help me!!A. 5 inchesB. 16 inchesC. 13 inchesD. 19 inches Simplify the polynomial using multiplication.5b(2a3a2)10a+3ba^210ba+15ba^25b+2a3a^210ba15ba^2