Mathematics High School

PLS HELP WILL MARK YOU BRAINLIEST

PLS HELP WILL MARK YOU BRAINLIEST

Answers

Answer 1

Answer:

A) 49x^2-36 km

Step-by-step explanation:

Remember that speed is equal to distance divided by time. Therefore, if you multiply time with speed, then you get the distance traveled.

So, we will do (7x+6) kph multiplied by (7x-6) hours to get 49x^2-36 km.

Answer 2

Answer:

A.

Step-by-step explanation:

Related Questions

Simplify the following expression.

5/6 x 3/5

Answers

Answer:

1/2

Step-by-step explanation:

5/6 • 3/5

15/30 = 1/2

Answer:

1/2

Step-by-step explanation:

For fraction multiplication, multiply the numerators and then multiply the denominators to get

5 × 3/ 6 × 5 = 15/30

This fraction can be reduced by dividing both the numerator and denominator by the Greatest Common Factor of 15 and 30 using

GCF(15,30) = 15

15 ÷ 15/30 ÷ 15 = 1/2

Therefore:

5/6 × 3/5 = 1/2

Solve to get cake, cookies and a hug

Answers

First find the length of the line in the middle.

c^2=5^2 + 5^2
c = square root of 50

Then use that to find x.

8^2 - c^2 = x^2
64-50 = x^2
14 = x^2
x = square root of 14

Find the area of the parallelogram. b = 90 ft h = 2 yd The area of the parallelogram is __ft² or __yd². ​

Answers

540 ft^2 because 90x6=540 2 yards = 6 feet

I ain’t giving n9 answer

A function is described by the equation
f(x) = 3x – 4. If f(x) = 26, what is the
value of x?

Answers

23 is the answer to this 8 point question

A polynomial divided by a polynomial is a polynomial

Answers

Answer:

what is this question???

Answer: I think you were trying to ask if this was a true statement, and the answer is yes. If that's what you needed to know?

Three people take 2½ hours to deliver leaflets to 270 houses. Assuming all people deliver leaflets at the same rate, how long will it take five people to deliver leaflets to 405 houses? Give your answer in hours and minutes.​

Answers

Answer:

3 hours 45 minutes

Step-by-step explanation:

270/2 1/2 = 108. This means they are delivering 108 leaflets an hour. Then you divide 405 by 108 and get 3.75, which is 3 hours and 3 quarters of an hour. since a quarter of an hour is 15 minutes it would be 3 hours 45 minutes.

Naomi has earned $81 mowing lawns the past two days. She worked 3
1
2
hours yesterday and 3
1
4
hours today. If Naomi is paid the same amount for every hour she works, how much does she earn per hour to mow lawns?

Answers

Answer:

She would of made $40.5 because of $81 divided between the 2 days that she worked

ΔPQR, P = 11, Q =9, and R = 8, so my question is (What are the angles from each side) m∠P=
m∠Q=
m∠R=
I know I need to use the LAW OF SINES and LAW OF COSINES. I know I need a law of cosines but I don't know how to put the numbers in right place.

Answers

Well…… I’m not sure. Sorry bud

Let (x) = 6x. The graph of f(x) is transformed into the graph of g(x) by a verticle compression of 1/3 and a translation of 2 units up. What is the equation for g (x)?

Answers

Answer:

g(x) = 2x + 2

Step-by-step explanation:

f(x) = 6x

g(x)= 1/3*f(x) + 2

g(x) = 2x + 2

About 5 out of 10 people entering a community college need to take a refresher mathematics course. If there are 970 entering​ students, how many will probably need a refresher mathematics​ course?

I need a answer asap

Answers

i think it’s 485 sorry if i’m wrong

can you Solve for c?​

Answers

Answer:

[tex]3\sqrt{2}[/tex] or [tex]\sqrt{18}[/tex]

Step-by-step explanation:

Use 45-45-90 triangle theorem

3*[tex]\sqrt{2}[/tex]

Help plzzzz! I rlly need help asap

Answers

Answer:

x=0

Step-by-step explanation:

2x-9=0

2x=9

x=9/2

4x+10=0

4x=-10

x=-5/2

2(9/2)-9 =0

4(-5/2)+10=10

Based on information from Consumer Reports, a random sample of 35 thirty-gram cookies had a sample mean of 146 calories. The standard deviation is know to be σ = 12. Find a 90% confidence interval for mean calories in a 30-gram serving of all chocolate chip cookies. Round the numbers in your interval to the nearest whole number.

Answers

Using the z-distribution, it is found that the 90% confidence interval for mean calories in a 30-gram serving of all chocolate chip cookies is (143, 149).

We are given the standard deviation for the population, which is why the z-distribution is used to solve this question.

The information given is:

Sample mean of [tex]\overline{x} = 146[/tex]. Population standard deviation of [tex]\sigma = 12[/tex]. Sample size of [tex]n = 65[/tex].

The confidence interval is:

[tex]\overline{x} \pm z\frac{\sigma}{\sqrt{n}}[/tex]

The critical value, using a z-distribution calculator, for a 95% confidence interval is z = 1.645, hence:

[tex]\overline{x} - z\frac{\sigma}{\sqrt{n}} = 146 - 1.645\frac{12}{\sqrt{35}} = 143[/tex]

[tex]\overline{x} + z\frac{\sigma}{\sqrt{n}} = 146 + 1.645\frac{12}{\sqrt{35}} = 149[/tex]

The 90% confidence interval for mean calories in a 30-gram serving of all chocolate chip cookies is (143, 149).

A similar problem is given at https://brainly.com/question/16807970

The number of employees for a certain company has been decreasing each year by ​4%. If the company currently has 710 employees and this rate​ continues, find the number of employees in 11 years.

Answers

Answer:

Answer is A

Step-by-step explanation:

How do I check my answer?!?? 6.78J-5.2=4.33J+2.15. J=3

Please answer !

Answers

you tried plugging in 3 for J on both sides of the equation

NO LINKS NO FILES NEED HELP ASAP GET IT RIGHT YOU GET CROWN!!
Seriously no links or files

Answers

Answer: A = 27 units^2

Step-by-step explanation: If you cut the shaded region in half it's two rectangles so you have to find the area of it using the formula to find the area of a rectangle.

A = (w)(l)                                                                                                                     A = (3)(9)                                                                                                                   A = 27 units^2

m= -2 b=15 write the equation of the line​

Answers

Answer:

y=-2x+15

Step-by-step explanation:

Hi there!

We are given that m=-2, b=15, and we want to write the equation of the line, given these values

We can write the line in slope-intercept form, which is y=mx+b, where m is the slope and b is the y intercept, since we are given the values of both m and b.

Since we know the values of m and b (-2 and 15 respectively), we can substitute those numbers in as the variables they equal to.

Substitute -2 as m:

y=-2x+b

Substitute 15 as b:

y=-2x+15

Hope this helps!

How Take a picture of the question

Answers

Answer:

uh

Step-by-step explanation:

this is very easy go to your camera

The Running Aces card team won $548 dollars playing in poker tournaments last year. The winnings were split evenly among the p players.
How much money did each player receive?
Write your answer as an expression.

Answers

Since the question doesnt give the amount of players on the team we can just say that each player was given 548/p dollars.

How to find derivative of a curved graph.

Answers

Visually, derivative of a function f at x=a represents the slope of the curve at the point x=a . Derivative As Slope: The slope of tangent line shown represents the value of the derivative of the curved function at the point x . Sometimes f has a derivative at most, but not all, points of its domain.

Someone help me please :(

Answers

Answer:

ok, but i can't even see nothing, though ;-;

Factorise. 5a² - 10a​

Answers

Answer:

5a (a -2)

Step-by-step explanation:

Hey there,

Here, you have to get the common factors out from the brackets.

According to this question,

a and 5 are the common factors.

Therefore, you can write the answer like this,

5a² - 10a

5a (a -2)

Hope this helps you.

Let me know if you have any other questions :-)

there are 30 students in Mr. Robert's classroom. 45% of the students ride the bus how many students ride the buss?

Answers

Answer:

About 13 students

Step-by-step explanation:

30*45%=13.5

13.5<14

fully simplify 124:72:48

Answers

Answer:

31:18:12

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

The sum of twice a numbet n, and 14 ls 30 write an equation that models this
statement. Then explain how you might use reasoning to find the value of

Answers

Answer:

2n + 14 = 30

n = 8

Step-by-step explanation:

When the question says twice a number n, that means 2 * n = 2n.

Then when it says the sum of 2n and 14, that means 2n + 14.

Then they said that the sum of 2n + 14 = 30

If you want to find the value of n, subtract 14 from both sides:

2n = 16

Then divide by 2 on both sides:

n = 8

I hope this helps!

can someone please help me :)

Answers

Answer:

1/2

Step-by-step explanation:

We have 2 points, (1,3) and (9,7). So, the slope of the line is (7-3)/(9-1)=4/8=1/2

The cube less the square of a number is twice the number. If x is a positive integer, what is its value

Answers

Answer:

2

Step-by-step explanation:

let 'x' = number

x³ - x² = 2x

x³- x² - 2x = 0

x(x² - x - 2) = 0

x(x - 2)(x + 1) = 0

x = -1, 0, 2

the only positive solution is the number 2

At a picnic, 12 people shared 4 large sandwiche
equally. How much of a sandwich did each
person get to eat?

Answers

Answer:

1/3

Step-by-step explanation:

Answer:

each person ate 1/3 of a sandwich

Step-by-step explanation:

Find the perimeter. Simplify your answer.
Please help me!

Answers

W-6 + w-6 + 1 +1

2w - 12 + 2

2w - 10 units. Hope this helped

g
Pat a
mber
4. In a hockey league, 87 players play on seven
different teams. Each team has at least 12
players. What is the maximum number of players
on any one team?

Answers

Answer:

15

Step-by-step explanation:

since there is 7 teams and 12 can be the minimum we can do 7 x 12=84

this means that 3 people could possibly be on one single team.

the maximum number is 12+3=15

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