Mathematics College

Douglas works for a racing car team.
The team is practising at a racing circuit
The length of the racing circuit is 4.8 kilometres.
The team car takes 2 minutes to go once round the racing circuit.
(a) Work out the average speed of the team car.
Give your answer in kilometres per hour.
(3)
Write your answer in the box below.
kilometres per hour
Show your working clearly in the
The working box can be moved
Working Box
(b) Use estimation to show a check of your answer.
(1)
Write your check in the box below.

Answers

Answer 1

Answer: the answer is c

Step-by-step explanation:

Related Questions

please help asap !!!!!! Which equation has one solution for x?

Answers

Question number b is the correct one

Answer:

I think C

Step-by-step explanation:

A has no solution

B has no X

D has infinite solutions

2(4y) + 4(3r) answer

Answers

Answer: 8y+12r

Step-by-step explanation:

Take the equation

2(4y)+4(3r)

Distribute the 2 and 4 into the parenthesis'

8y+12r

Let's simply:
___________
2(4y) + 4(3r)
= 8y + 12r

the answer to your question is 12r + 8y

plz plz plz, HELP!!!! I will give u brainlylist

Answers

Answer:

Step-by-step explanation:

thats the answer now give me brainliest NOW:)

Is 9 a solution of the equation 9x+8=7x?

Answers

Answer:

Download ka po ng PHOTO MATH app . with solution na yan:) lahat ng problema mo sa solving sagot agad

A bag of sugar contains 420g. A
special offer packet contains an extra
15%. Work out how much extra sugar
is in the special offer packet.

Answers

Answer:

63g extra

Step-by-step explanation:

420 x 0.15 =63 g

American League baseball teams play their games with the designated hitter rule, meaning that pitchers do not bat. The league believes that replacing the pitcher, traditionally a weak hitter, with another player in the batting order produces more runs and generates more interest among fans. Below are the average numbers of runs score in American League and National League stadiums for the first half of the 2001 season. **American:** 11.1, 10.8, 10.8, 10.3, 10.3, 10.1,10.0, 9.5, 9.4, 9.3, 9.2, 9.2, 9.0, 8.3 **National:** 14.0, 11.6, 10.4, 10.3, 10.2, 9.5, 9.5, 9.5, 9.5, 9.1, 8.8, 8.4, 8.3, 8.2, 8.1, 7.9 (a) Create two box plots to display this data and comment on what you see. (b) Estimate the mean number of runs scored in American League games with a 95% CI. What concerns do you have about making a similar CI for National League games

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

Given the data:

**American:**

11.1, 10.8, 10.8, 10.3, 10.3, 10.1,10.0, 9.5, 9.4, 9.3, 9.2, 9.2, 9.0, 8.3

**National:**

14.0, 11.6, 10.4, 10.3, 10.2, 9.5, 9.5, 9.5, 9.5, 9.1, 8.8, 8.4, 8.3, 8.2, 8.1, 7.9

Kindly view attached picture for boxplot :

Using the relation :

Mean ± Zcritical * s/sqrt(n)

Zcritical at 95% = 1.96

National league :

Mean = 9.58125

Standard deviation = 1.5

9.58125 - 1.96 * 1.5/4 = 8.84625

9.58125 + 1.96 * 1.5/4 = 10.31625

(8.84625 ; 10.31625)

American League :

Mean = 9.807

Standard deviation = 0.805

9.807 - 1.96 * 0.805/sqrt(14)= 9.3853152

9.807 + 1.96 * 0.805/sqrt(14) = 10.228684

(8.84625 ; 10.31625)

Matthew has a shipping carton in the shape of a right rectangular prism. The volume of the shipping carton is 11. cubic meters. The
height of the shipping carton is 7 meters and the width is 2 meters.
What is the length of Matthew's shipping carton?
fraction in simplest form in the box

Answers

Answer:

Height = 0.7857 m = 13/16 m

Step-by-step explanation:

Height x 7 x 2 = 11

Height = 0.7857 m = 13/16 m

please help i put pic of question

Answers

Answer: [ -8, -5] or [1, 4]

Step-by-step explanation:

Thats what I got I'm in 7th and I havent learned this yet but hope I helped <3!!!

4. Find the following function values.

(3)/ (3)

( (2))

f(f'(-4))

g(x+2)

Answers

Answer:

1. 9

2.2

3.0

4.gx +2g

Step-by-step explanation:

nequalities in Non Standard Form
Question 1 of 10
Solve the inequality and enter your solution as an inequality comparing the
variable to the solution
-19> x-26
Answer here

Answers

Answer:

x < 31 I think

Find LM.
A.) 5
B.) 17.32
C.) 9
D.) 8.66

Answers

Answer:

Step-by-step explanation:

City A and B 2,000 miles Coty C and D 4100 miles how many inches are they

Answers

Answer:

city a and b 1.2672e+8

city c and d 2.5978e+8

Step-by-step explanation

what they said hope that u get it right

2 + ( x +24) + (2+x) = 40 find the value of x

Answers

X=6 if you need an explanation commu

Solve using the quadratic formula.
q2 + 69 + 9 = 0

Answers

Answer:

the value of q = -3

Step-by-step explanation:

The computation of the equation is shown below:

Given that

q^2 + 6q + 9 = 0

q^2 + 3q+ 3q + 9

q(q + 3) + 3(q + 3)

(q+3) (q+3)

q = -3

Hence, after solving it the value of q = -3

finds the value of x and Y.
2x+3y=5
X-2y=-1

Answers

Answer:

x=1

y=1

Step-by-step explanation:

2x+3y=5.........eq1

x-2y=-1........eq2

therefore: x=-1+2y

Subt. eq 3 into eq2

2x+3y=5

2(-1+2y) +3y=5

-2+4y+3y=5

7y=5+2

7y/7=7/7

y=1

therefore: Subt. y=1 into eq2

x-2y=-1

x-2(1)=-1

x-2=-1

x=-1+2

x=1

4 ^-3 rewrite without an exponent

Answers

Answer:

(1/4)³

Step-by-step explanation:

Hope it helps you

Answer:

[tex]\frac{1}{64}[/tex]

Step-by-step explanation:

Negative exponents means you bring the base to the denominator, which becomes a fraction.

[tex]4^{-3} \\=\frac{1}{4^{3}}[/tex]

The question wants us to write without an exponent.

The [tex]4^{3} = 4 * 4* 4=64[/tex]

So, it becomes:

[tex]\frac{1}{64}[/tex]

Evaluate the expression: 8 ⋅ (1/2)^2

Answers

Answer:

Step-by-step explanation:

8 ⋅ (1/2)^2 = 8 * (1/2) * (1/2)

=4/2

What is the period of 1-sin 2πx/3? Please explain.

Answers

Answer:

Notice, period of function sin(kx) is 2π/k where k is constant (coefficient of x ) since coefficient of x in sin(2πx/3) is k=2π/3 hence the period of sin(2πx/3) is 2π/(2π/3)=3

Step-by-step explanation:

The population of a city has been increasing by 2% annually. In 2000, the population was 315,000. Predict the population of the city in 2020. Round your answer to the nearest thousand.

Answers

Answer:

In 2020 there will be 468,073 people.

Step-by-step explanation:

Giving the following information:

Growth rate (g)= 2% = 0.02

Population 2,000= 315,000

Number of periods (n)= 20 years

To calculate the population in 2020, we need to use the following formula:

FV= PV*(1+g)^n

FV= 315,000*(1.02^20)

FV= 468,073

In 2020 there will be 468,073 people.

A right rectangular prism has a length of 8 centimeters, a width of 3 centimeters, and a height of 4 centimeters.

What is the surface area of the prism?

____cm2

a) 96

b) 104

c) 136

Answers

Answer:

I believe the answer is C. 136 cm2

I think the answer is . C. 136 cm

Jose purchased 105 slices of pizza to sell at his school's fundraiser, yet at the end of the day, he had only sold 58. What is his percent of error? PLS HELP

Answers

Answer:

awww well look at that my best friend is on brainly, i need help too <3

Step-by-step explanation:

GIVING BRAINLIST. 6 dimes if what percent of a dollar

Answers

Answer:

60%

Step-by-step explanation:

6 dimes is 10x6 and a dollar would have 10 dimes so 60%

ALGEBRAIC EXPRESSION:
1.Subtract q from p
2.Multiply p by q
3.Divide 20 by p
4.8 times p
5.The sum of p and q
6.Add 15 to p
7.Subtract 25 from q
(pls help me am just new to this lesson)

Answers

Step-by-step explanation:

1. p-q

2. q×p

3.p÷20

4.8*p (8p)

5.p+q

6.p+15

7.q-25

ASAP PLZ I WILL GIVE BRAINLIEST

The sum of a number and twenty-one is shy-four What is the value of the number? The number equals

Answers

Answer:

Step-by-step explanation:

64-21= 43

Answer:

The answer is 43

Step-by-step explanation:

21+x=64 x=64-21 x=43

The giraffes roam 612 acres of grasslands and the tigers roam 346 few acres. How many acres do they roam combined?

Answers

Answer:

They roam 958 acres combined.

Step-by-step explanation:

612 + 346

= 958

Ellie shares 24 cupcakes with x friends, how many cupcakes does each friend get?

Answers

Answer:

24/ 1 + x

you would have to divide the cupcakes upon the friends.

What is the value of x?
K
х
X-6
Q
P
5
ال)
L
J

Answers

Answer:

Step-by-step explanation:

The value of x is equal to 9

Solve the inequality

Answers

the answer would be

-3 ≤ x ≤ 5

Factor out the greatest common factor in 12x2 + 18x.
PLEASEE HELLPPPP

Answers

It's 42x you are so welcome lol

WILL MARK BRAINLYIST

Answers

Answer:

Step-by-step explanation:

You solve for x in 2 methods 7x+10=94 Or 4x-6=42

7x=84

x=12

Other Questions

What is the value of cos in the diagram below?A. 3/5B. 3/4C. 4/5D. 4/3 What are the two types of evolution? What are the differences between the two? DESPERATE WILL GIVE BRAINLIST AND THANKSUse the data to create a scatter plot.Weight vs. Stretch DistancePointMoveUndoRedoResetStretch distance (cm)Weight (N)12345678910123456789100Stretch distance (cm)Weight (Newtons)2.013.524.024.535.556.067.589.09(plz show the graph picture with the answer) A certain man has a negative balance of P250 in his back account b) suppose he deposits P300 in his back account ,what is the current balance in his account? need help cuz i don't know what in doingggg In 1800 the US was struggling to preserve the rights of its citizens and its newly created democracy. Why would the Democratic-Republicans believe the government should favor farmers and common people? pls help ill give brainliest to the PERSON WHO GETS IT RIGHT 60 POINTS WILL MARK BRAINLIEST: help me write a restaurant description (ntry to use synecdoche, if you can't ill add it in later) I have started it (you can edit it as much as you want) and I need 5 sentences, thanks in advance 8 + 25 x 2 to the power of 2 help 10 points to solve please show me the essays about the problems that Americans faced during the great depression How would this following triangle be classified what is 5 yards rounded to the nearest tenth Which is an example of oversharing using GPS?A. Posting an online message when your plane has landedB. Revealing your location every few minutes in messagesC. Giving too much personal information on social networksD. Constantly asking others to tell you their locations HELP! WILL GIVE BRANLIEST! + EXTRA POINTS! The food web illustrated here exists in Yellowstone National Park,SecondaryconsumersRaven (detritivore)Gray wolfRed foxPrimaryconsumersSnowshoehareMooseBeaverRed squirrelPrimaryproducersPineMapleBalsam Fir Cottonwood Aquatic plantsIf gray wolves were to go extinct, what would be the two most likely effectson the ecosystem? Help Please!!!!! Which is the most fluid revision of the following paragraph?Laura had had enough of Nelly's arrogance and bragging.She pushed Nelly into the creek. She knew the creek wasfilled with leeches.A. Laura was tired of Nelly's arrogant bragging, so she pushedNelly into the creek, even though she knew it was full of leeches.B. Laura pushed Nelly into the leech-filled creek. This action wasbecause Laura was sick of Nelly's bragging.C. Although Laura knew the creek was full of leeches, she pushedNelly in anyway. Laura was tired of Nelly's arrogance andbragging.D. None of the aboveSUBMIT In the spring of 1953,how many Americans returned home from Korea in coffins? Alan spent $9.17 on oranges. If oranges are selling for $0.35 a pound, how many pounds of oranges did Alan buy Writing Assignment So, you have learned about how the denaturation of proteins works during lecture, and you have seen examples in these videos. Now you will write a 2-3 page discussion of protein denaturation putting all that together Make sure you cover both the academic side (lecture knowledge) and practical side (what is done and observed in the lab). Make sure the answers to the following questions are contained in your report. Do NOT just answer them separately, but rather incorporate them seamlessly in your writing. This is a very broad topic, so comprehensive coverage is hardly expected, but you should demonstrate a good beginner's understanding. As usual, reference any and all resources you use. a. What are the various levels of organization that any protein structure may have that gives it its 3-dimentional shape?Which of these changes during denaturation?b. For each change made to a protein solution that you have seen or read about how might it affect the interactions that are involved in a protein's shape? c. What is the difference between precipitation of a protein and its denaturation? How might you tell the difference? d. If changing the pH of an enzyme solution greatly reduces the activity of that enzyme without precipitation, how could you tell in the lab if it were the result of denaturation or just going to a pH that is just not a good one for the enzyme? And how would a change in pH impact or even stop enzyme function without denaturation? (Consider the enzymes that are active in your stomach, such as pepsin-discussed in Wikipedia.) e. For changes that precipitate a protein, are some more likely than others to be denaturation? f. Etc. If you find one aspect of what you've see more interesting, go ahead and learn more and expand that section of your report and keep the other sections more basic.