Mathematics High School

help with this bounds question please

Answers

Answer 1

Answer: 6.68km/litre

Step-by-step explanation:

Distance(d) = 187km ( to 3 significant figures)

Petrol(p) = 28litres ( to 2 significant figures)

A number, x, rounded to 1 significant figure is 200

Write down the error interval for x

Calculating the lower and upper bound for both 'd' and 'p'

Upper bound 'd' = 187.5km

Lower bound 'd' = 186.5km

Upper bound 'p' = 28.5km

Lower bound 'p' = 27.5km

Therefore,

Petrol consumption (C) = d/p

Upper C = 187.5 / 28.5 = 6.57894

Lower C = 186.5 / 27.5 = 6.781818

Accuracy answer for C = (6.57894 + 6.781818) / 2 = 6.680379

= 6.68km/ litre ( to 3 significant figures)

To achieve a reasonable level of accuracy, the upper and lower bounds of P and D was used to calculate C, which was then averaged.

Using 3 significant figures ensure that we capture the C better, instead of early rounding.

Related Questions

Please help me!! I really need some help ASAP please

Answers

Answer: put a dot at the place you think 7 over 2 would be then put one at -2 on the x axis then drawn a line

Step-by-step explanation:

PLS LOOK AT THE PIC AND HELPPP PLSSS

Answers

Answer:

4x + -6.03 = 2.07

Step-by-step explanation:

first one:

there are four big white boxes so that equals 4x

6 negative ones so its -6

3 negative 0.1 so its -0.3

add up 06 and -0.3 and that's -6.03

second one:

there are two squares that each equal one so that would be two and add the 7 0.1's and that will be 2.07

1. When the point is reflected over x-axis, what will
the new coordinates of the new point be?

Answers

Answer:

(x , y) ----> (-x , y)

Step-by-step explanation:

(x , y) ----> (-x , y)

Example for 1. :

(-4,2) ---> (4,2)

I need help with this question...

Answers

Answer:15

Step-by-step explanation:

we know from the markings on the sides of the triangle that this is an equilateral triangle. The angles of an equilateral triangle are all equal. because of this, we can put these two equations to equal each other
since we are solving for y, we want to isolate y on one side.

6x+6=5y+10
-10 -10
6x-4=5y
divide both sides by 5

6/5x-4/5=y

Can someone help me with this? I don’t understand it!! (Conditional Property)

Answers

Answer:

19%

Step-by-step explanation:

What is the probability that those who ordered a large drink was a cold one?

27 drinks in total

5 cold

5/27*100%

Hope this helps!

k ( n ) = | n + 1 | − 1 ; Find k ( 4 )

Answers

Answer:

Step-by-step explanation:

A group of seven friends went out for dinner together and they each paid the same amount for their meal. Their total bill was $68.95 what was the cost of one meal
Please answer I really need it <3

Answers

Answer:

9.85

Step-by-step explanation:

$68.95 Divided by seven friends = 9.85

You're Welcome :D

Please help with these problems..
at least one.

Answers

Answer:

4(5q-8), q=6

4(5(6)-8)=

4(30-8)=

4(22)=

r+(-8)/2. r=12

12+(-8)/2=

4/2=

(11b+4)/9. b=7

(11(7)+4)/9=

(77+4)/9=

(81)/9=

Step-by-step explanation:

A rectangle has vertices (j,k) , (l,k) and (l,l). Find the fourth vertex

Answers

Answer:

(j,l)

Step-by-step explanation:

It's the only combination left

HELP PLEASE! DELTA MATH! THANKS!
Last year at a certain high school, there were 140 boys on the honor roll and 68 girls on the honor roll. This year, the number of boys on the honor roll increased by 5% and the number of girls on the honor roll increased by 25%. By what percentage did the total number of students on the honor roll increase? Round your answer to the nearest tenth (if necessary).

Answers

Answer:

11.5

Step-by-step explanation:

Find new values:

140(1+0.05)=147

68(1+0.25)=85

Last Year This Year

Boys 140 147

Girls 68 85

Total 208 232

Find overall increase:

208(1+r)=232

1+r=1.115385

r=0.115385

Final Answer: 11.5%

The total number of students on the honor roll increased by 11.5%.

What is the percentage?

The percentage is defined as a ratio expressed as a fraction of 100.

The percentage increase in the number of boys on the honor roll is 5%, which means that the number of boys on the honor roll this year is 1.05 times the number of boys on the honor roll last year:

1.05 x 140 = 147

The percentage increase in the number of girls on the honor roll is 25%, which means that the number of girls on the honor roll this year is 1.25 times the number of girls on the honor roll last year:

1.25 x 68 = 85

Therefore, the total number of students on the honor roll this year is:

147 + 85 = 232

The percentage increase in the total number of students on the honor roll is:

((232 - 208) / 208) x 100% = 11.5385%

Rounding to the nearest tenth gives an answer of 11.5%.

Therefore, the total number of students on the honor roll increased by 11.5%.

Learn more about percentages here:

brainly.com/question/24159063

#SPJ3

Help please
Which graph does not represent a function?

Answers

The first one is the one that doesn’t represent a function

The answer is A trust me.

PLEASE HELP WILL GIVE BRAILEST TO CORRECT ANSWER!!!!
Marcus states that the polynomial expression 3x3 – 4x2y + y3 + 2 is in standard form. Ariel states that it should be y3 – 4x2y + 3x3 +2. Explain which student is correct and why.

Answers

Answer:

opps type miss

Step-by-step explanation:

miss type

the helmet sheena would like to buy costs $4 less than 4 times the amount she saved . the helmet costs $60 .how much mony does sheena save ?

Answers

Answer: 20

Step-by-step explanation:

A store is selling T-shirts. Which is the best deal?

8 for $26
5 for $30
4 for $15
12 for $39
10 for $45

Answers

divide cost by quantity. The lowest rate is the best buy:

26/8 = 3.25 each

30/5 = 6.00 each

15/4 = 3.75 each

39/12 = 3.25 each

45/10 = 4.50 each

The 8 for 26 and the 12 for 39 are both the same price each and are the better buys.

Equivalent expression for m-(8-3m)

Answers

Answer:

4m-8

Step-by-step explanation:

answer

Answer:

4m - 8

Step-by-step explanation:

Given expression,

→ m - (8 - 3m)

Simplifying the expression,

→ m - (8 - 3m)

→ m - 8 + 3m

→ 4m - 8

→ 4(m - 2)

Hence, answer is 4m - 8.

the difference of 2x and 15 is less than or equal to the sum of 4x and 17

Answers

Step-by-step explanation:

the difference of 2x and 15 is less than or equal to the

sum of 4x and 17

i.e.,

2x - 15 < 4x + 17

if you want to find ahead then

2x - 15 = 4x + 17

2x - 4x = 17 + 15

- 2x = 32

x = - 32/2

x = - 2

HELP!!!!! Suppose the distance between two cities on a map is 5.2in the scale is 1 in =80miles what's the actual distance between the cities.

A) 408 miles
B) 400 miles
C) 424 miles
D) 416 miles

Answers

Answer:

80*5.2= 416

D: 416 miles

I need help like NOW!

Answers

Answer:

Step-by-step explanation:

kinda self explanatory

dividing it, adding it, and subtracting it wouldnt make sense for the equation youre trying to solve.

Answer:

Step-by-step explanation:

I WILL GIVE YOU BRAINLY PLSS

What is the solution of x + 6 11
C. x –1

PLSS SHOW YOUR WORK PLSS

Answers

Is it 611 or is there something in between

Answer: x < -1

Step-by-step explanation:

x + 6 < 5

x + 6 = 5

x = -1

x < -1

Now try to prove its correct

A number less than -1 is -2 so we'll try that.

x + 6 < 5

(-2) + 6 < 5

4 < 5

We can tell after substituting -2 for x, that the answer is correct

Oh and I changed the less than sign to an equal sign so it's easier to solve.

Does that help?

1.8/0.087-0.947+2.2/0.044

Answers

Answer:

The answer is 2022537/290000

problem:

Solve for the missing variable

Answers

Answer:

4x+4=5x-8

4x-5x+4=-8

4x-5x=-8-4

-x=-8-4

-x=-12

x=12

Step-by-step explanation:

A water taxi travels around an island in a path that can be modeled by the equation y=0.5(x-14)^2 . A water skier is skiing along a path that begins at the point (6,4) and ends at the point (8,4)
Write a system of equations to model the problem.
Is it possible that the water skier could collide with the taxi? Explain

Answers

Answer:

A water taxi travels around an island in a path that can be modeled by the equation y =0.5(x - 16). A water skier is skiing along a path that begins at the point (6,6) and ends at the point (8. - 4).

a. Write a system of equations to model the problem.

b. Is it possible that the water skier could collide with the taxi? Explain

Step-by-step explanation:

TRUE OR FALSE
becomes zero for x

Answers

Answer:

True

Step-by-step explanation:

i need help someone help pls and thx

Answers

i believe 12 feet , if im wrong im sorry!

The Answer is 12 feet because that is the highest point that the line/curve on the graph goes.

helppp!!
right answers only please!

Answers

Answer:

Y-intercept

Step-by-step explanation:

The y-intercept is the part of the line that crosses the y-axis.

The red dot (where the arrow is pointing to) is the y intercept

I need help ASAP I’ll mark brainliest help please #1

Answers

Answer:

Step-by-step explanation:

8-5=3, 1-(-7)=8, 3^2+8^2=73, and the square root of 73 is 8.5

What are the Oder of operations

Answers

Answer:

PEMDAS

Step-by-step explanation:

P=Parentheses

E=Exponents

M=Multiplication

D=Division

A=Addition

S=Subtraction

Find the length of the hypotenuse left

Answers

Answer: 2.45

Step-by-step explanation:

I use pythagorean theorem after i found the total of leg A and leg B

4 in.
5 in.
6 in.
I

Answers

What is the exact question? It seems like you are asking for the Pythagorean theorem. Ok, I’ll try to help if that’s the case.

a^2 + b^2 = c^2
4^2 + 5^2 = c^2
16 + 25 = c^2
41 =c^2
6.403124237432849 = c

So now since we have the answer, we need to figure out if this result and 6 are equal.

6^2 = 36

25 + 16 = 41

41 and 36 are not equivalent so if the case is that u want me to find the Pythagorean theorem, then the answer is that they aren’t equal. And the real answer is that c equals 6.403124237432849. Which means that 4in, 5in, 6in is not the correct order. And that 16in, 25, 41 is the correct order.

I hope this helped!

-2x + y = 1.3
2(0.5x - y) = 4.6

Answers

Answer:

x=-2.4

y=-3.5

Step-by-step explanation:

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