Mathematics High School

Pls help as soon as possible

Answers

Answer 1

Answer: 161.6 seconds

Step-by-step explanation:

1. 8.216 + 3.652 = 11.868 (add together, this is for one car)

2. 11.868 x 42 = 161.6

Related Questions

Find the coordinates of the vertex of the following parabola algebraically.
Write your answer as an (x, y) point.
y = x2

Answers

Answer:

I have no idea what it is sorry

The price of a pair of shoes increase from $65 to $68 What is the percent increase to the nearest percent

Answers

Answer:

4.61% increase (round up as needed)

Step-by-step explanation:

Subtract the smaller amount from the larger to find the dollar difference

[tex]68-65=3[/tex]

Then divide the difference by the original amount

[tex]3/65=0.0461[/tex]

Move the decimal point over two spaces (multiply by 100) to get your percentage

0.0461=4.61%

Round up as needed.

Simplify (4x-1)+(-6x+3)

Answers

Answer:

2x-4

Step-by-step explanation:

Combine like terms to get your awnser

Step-by-step explanation:

Ur wlcm!

GIVING 50 points
FIND THE VALUE OF X
PLEASE HELP WITH WORK AND STEPS SHOW THANK YOU

Answers

Answer:

Step-by-step explanation:

1. 10^2+7^2=x^2

x=sqrt(149)

2. 21^2-19^2=x^2

x=sqrt(80)

3. This is all pythagorean theorem busywork, a^2+b^2=c^2 where c is the hypotenuse of the triangle. I think from my examples you should be able to figure the rest out.

PLEASE HELP

The picture below shows a loading platform that extends out 6 feet from the back of a truck. What is the exact length of the platform?

Answers

Answer:

really easy its 180

Step-by-step explanation:

because you multiply 30 times 6 u get 180

Answer:

5.2 ft

Step-by-step explanation:

[tex] \cos 30 \degree = \frac{6}{length \: of \: platform} \\ \\ \frac{ \sqrt{3} }{2} = \frac{6}{length \: of \: platform} \\ \\ length \: of \: platform = \frac{2 \times 6}{ \sqrt{3} } \\ \\ length \: of \: platform = \frac{12\sqrt{3} }{ 3} \\ \\ length \: of \: platform =4 \sqrt{3} \\ \\ length \: of \: platform =4 \times 1.732 \\ \\ length \: of \: platform = 5.228 \\ \\ length \: of \: platform = 5.2 \: ft[/tex]

HELP ME WORTH 100 POINTS AND BRAINLIST IF RIGHT

Answers

Answer:

Id say 60 since its gonna have to be lower than 90. A I did no math but that seems to be here the answer

Step-by-step explanation:

the answer to your question is A. 60

Is it in scientific notation? Answer Yes or No
i. 32.7x107
ii. 0.72x10-8
iii. 5.4EE7
iv. 9.7x104

Answers

Answer:yes

Step-by-step explanation:

Answer:

Step-by-step explanation:

Hello. I was stuck on this. Can you please help? Will give brainliest answer to the best one. Theres no need to go into a big explanation, just saying. Will give 5 stars and thanks. °ω°

Answers

Answer:

D ( not 100 percent) hear me out time is constant and I think the constant has to be on the bottom

Step-by-step explanation:

It’s between c and d for me hope this gets you a lil further ahead

If a tennis ball has a diameter of 14.6cm, and is cut in half.
What is the volume of the half of the tennis ball? Use 3.14
for pi

Answers

Well it seems as if this day would become a great day to look over on society but seeing that the greats of the ratings on the volunteering it would be an incorrect process for the volunteers to answer math it is very simple that gratitude steps right on in and defeats the walking of the people in the problem it seems as if they have decided to make it seem hard in the testing regulations, The answer is 4.53 Thank you for your time young man or lady.

For the function f(x) = - 3x + 7 f(- 8) = _
f(-8) = (Simplify your answer)

Answers

31

just substitute -8 for all x

process here:

f(x) = -3x + 7
f(-8)= -3(-8) + 7

Teresa is running the hurdles for the track team. The race times are measured in hundredths of seconds. Teresa’s best time is 19.42 seconds. She needs to run in 18.87 seconds to win the race. If Teresa wins the race, how many seconds better will her new time be? *

a,38.29
b.27.29
c.0.55
d.0.45

Answers

The answer is c - 0.55

Factor the quadratic expression completely.
2x2 + 7x + 3

Answers

Answer:

(2x+1)(x+3)

Step-by-step explanation:

just remember to put a ^ when you do this 2x2 put it like this 2x^2

an you welcome and plz give me brainiest

find the are of this rectangle write answer in simplest form

Answers

Answer:

9 7/9 0r 88/9

-4w + 4 = 12
help math ahh

Answers

Answer:

[tex] - 4w + 4 = 12 \\ - 4w = 12 - 4 \\ - 4w = 8 \\ w = - \frac{8}{4} \\\boxed{w = - 2}[/tex]

w=-2 is the right answer.

slope is soo confusing.. but if anyone down to help me

Answers

Answer:

-2/2 or simplify to =-1

Step-by-step explanation:

you use rise over run. you may use an exact formula (y2-y1)/(x2-x1) by picking 2 y values and 2 x values on the graph and subtracting the values.

Please help thanks I’m so confused

Answers

Answer:

64.93=4.73x+22.36

Step-by-step explanation:

64.93 is how much he paid

22.36 is his constant

4.73 is for 1 call

lets try this again can someone help

Answers

Answer:

Step-by-step explanation:

First expand into [tex]\left(x^2-9\right)\left(3x+2\right)[/tex]. Then expand again to[tex]3x^3+2x^2-27x-18[/tex]

Select the expression that represents the distance between the numbers r and p

Answers

Answer:

Option B

Step-by-step explanation:

Let's understand this problem in a simpler way,

If two points P and R represent the numbers as,

P = 2 and R = - 4

Then distance between these points will be,

P - R = -4 - 2 Or R - P = 2 - (-4)

= -6 Or R - P = 6

= ±6

But the distances are always positive so 6 will be the answer.

That's why we represent the distances between two points as,

|P - R| (Absolute value of the difference)

Option B is the answer.

There are 50 cups of water in 10 gallon of water what is the total number of cups of water in 1/4 gallon of water? HELP ASAP

Answers

Answer:

there would be 20

Step-by-step explanation:

Answer:

1.25 cups

Step-by-step explanation:

50 / 10 = 5

that means there are 5 cups in 1 gallon

5 / 4 = 1.25

So there are 1.25 or as a fraction 1 1/4 cups in 1/4 of a gallon of water

Which numbers below represents a repeating decimal? Check all the boxes that apply.*
-2/3
-3/5
3/10
11/20

Answers

Answer:

-2/3

Step-by-step explanation:

-2/3= -.066666667

-3/5= -0.6

3/10= 0.3

11/20= 0.55

Two plumbers charge an initial fee and an hourly rate.
The equation y = 100 + 30x models plumber A's fee, where y is the total charge, in dollars, and x is the number of
hours worked
The table shown represents plumber B's total charge for different numbers of hours.
Plumber B
Hours Total Charges ($)
1
105
2.
160
3
215
2.
Part A: Which plumber charges more money per hour? Explain how you know.
Part B: Which plumber charges a higher initial fee? Explain how you know.
Part C: Which plumber charges less money for working 5 hours? Show your work to justify your answer.

Answers

Answer:

A) Plumber B charges 55 dollars per hour (105=50+55(1)) because for 1 hour the total is 105, meaning that 105 is y and 1 is x. 50+55=105

B) Plumber A charges more because he charges 100 dollars vs Plumber B's 50 dollars.

C) Plumber A: 250=100+30(5) Plumber B: 325=50+55(5)

Plumber A charges less money for working 5 hours.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Given that,

Two plumbers charge an initial fee and an hourly rate.

The equation y=100+30x -----(I) models plumber A's fee, where y is the total charge, in dollars, and x is the number of hours worked.

Part A:

From the table, we have (1, 105) and (2, 160)

Now, m=(160-105)/(2-1)

= 55

Substitute m=55 and (x, y)=(1, 105) in y=mx+c, we get

105=55(1)+c

c=60

Substitute m=55 and c=60 in y=mx+c, we get

y=55x+60 -----(II)

By comparing (I) and (II), we can conclude that plumber B charges more hourly fee.

Part B: By comparing (I) and (II), we can conclude that plumber A charges more initial fee.

Part C: Substitute x=5 in y=100+30x, we get

y=$250

Substitute x=5 in y=55(5)+60, we get

y=$335

Plumber A charges less money for working 5 hours.

Therefore, plumber A charges more initial fee.

To learn more about an equation visit:

https://brainly.com/question/14686792.

#SPJ2

Solve for the variable.
1. 78 = x - 11

Answers

Answer:

x = 89

Step-by-step explanation:

78 = x - 11

add 11 to both sides of the equation

78 + 11 = x - 11 + 11

78 + 11 = x

89 = x

Answer:

x = 89

Step-by-step explanation:

78 = x - 11

+ 11 = +11 <— we add 11 since we are doing inverse operation

89 = x

what is the answer ?

Answers

Answer:

......................

Frank made $80 for 5 hours of work,
At the same rate, how much would he make for 17 hours of work?

Answers

Answer:

$272

Step-by-step explanation:

We're going to make an equation

we'll make x hours

5x=80

solve for x and you get 16 dollars an hour

16 times 17 is 272

The answer will be 272$ because 80 divided by 5 equals 16 and 16 times 17 equals 272

The equation a= 13 25p models the relationship between the pounds of topsoil and the area covered in square feet. Determine the pounds of topsoil Caleb needs to order to cover an area of 169one hundred sixty nine square feet.

Answers

Answer:

Pounds of topsoil needs to order to cover an area of 169 square feet is 0.1275

Step-by-step explanation:

GIVEN: relation between the pounds of topsoil and area covered is ( a = 1325 p )

a represent area and b represent pounds of topsoil

To Find : pounds of topsoil needs to order to cover given area .

Solution : since here relation is given

a = 1325 p

value of a = 169 square feet

so putting the value of a in above relation

so , 169 = 1325 p

p = 169 / 1325 = 0.1275

So , pounds of topsoil needs to order to cover given area is 0.1275

Answer:

0.1275

Step-by-step explanation:

Hope this helps

Please helpppp........,

Answers

roc is 12. and x is 3

I don’t know ask someone else

please help me !!!!!

Answers

D. 1/12
Since these are percentages, add the numbers so it becomes the probability.
: 2 + 2 = 4
: 3 + 5 = 8
: 8 + 4 = 12
So that means the correct answer is D, 1/12.

Answer:

The answer is A

Step-by-step explanation:

So there are 12 game pieces 4 pieces are the colors he wants so the fraction would be 4/12 and if u simplify the faction you'll get 1/3

Answers the question please

Answers

Answer:

I would say (B) 14,55

Step-by-step explanation:

Lehana and Marty each opened a savings account with a deposit of $100.
● Lehana earned 2.5% simple interest per year.
● Marty earned 2% simple interest per year.
● Neither of them made additional deposits or withdrawals.
How much more did Lehana receive in interest than Marty after three years?

Answers

Answer:

100*.025*3=7.5 100+7.5=107.5

100*.02*3=6 100+6=106

107.5-106=1.5

$1.50

Step-by-step explanation:

thats it

Solve this triangle using the law of sines

Answers

Answer:

answer is 6√3

it's right answer

:-))

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