Mathematics High School

Find the value of x and y
I don’t know how

Find The Value Of X And YI Dont Know How

Answers

Answer 1

Answer:

x = 2√30, y = 2√21

Step-by-step explanation:

You can create the following equations:

(1) from the left triangle with sides x, y and 6:

y² + 6² = x²

(2) from the right triangle with sides y, 14 and... lets call it z:

y² + 14² = z²

(3) from the big triangle:

x² + z² = 20²

(4) Combine (2) and (3) to eliminate z:

x² + y² + 14² = 20²

combine (1) and (4) to eliminate x:

y² + 6² + y² + 14² = 20²

simplify

2y² = 20² - 6² - 14² = 168

y² = 84

y = √84 = 2√21

x² = y² + 6² = 84 + 36 = 120

x = √120 = 2√30

Related Questions

In a translation, what math process is used?
a) addition/subtraction
b) multiplication
c)division

Answers

Addition/ subtraction

Solve each equation.
1)
9c + 1 = 10

Answers

Answer:

doesnt c = 1

Step-by-step explanation:

I don't even know I'm just tryna get points

Help pleaseeeee I will try and give brainliest

Answers

Answer:

the answers B c=35h+50

Step-by-step explanation:

Answer:

the answer is D. c= 85h

Step-by-step explanation:

i think this is the answer if it is correct plz give brainliest.

please help me !!! easy question and i’ll give brainliest

Answers

Answer:

x = 35.1 degrees

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

cos theta = adj/ hyp

cos x = 27/33

Take the inverse cos of each side

cos ^-1 ( cos x) = cos ^-1(27/33)

x =35.09680123

To the nearest tenth

x = 35.1 degrees

Answer:

x=35.1

Step-by-step explanation:

cos(x)=[tex]\frac{27^{2}+33^{2}-360 }{2(27)(33)}[/tex]

x=35.1(correct to the nearest tenth)

is y=-2x linear or non linear

Answers

Answer:

Step-by-step explanation:

Iinear

CONSTRUCTION The area of Liberty Township’s square playground is represented by the trinomial x^2 - 10x + 25. Write an expression using the variable x that represents the perimeter.

Answers

Answer:

X=5 and X=5

Step-by-step explanation:

X²-10x+25=0

X²-5x-5x+25=0

X(x-5)-5(x-5)=0

(X-5) (x-5)=0

X-5=0. x-5=0

X=5. x=5

Jessica is returning home from a trip. The function d(t)=458-60t models the distance, in miles, that Jessica is from her house t hours after she began returning home. How far is Jessica from her home 5 minutes after she began returning home?


A.

5 miles


B.

158 miles


C.

300 miles


D.

453 miles

Answers

Answer: D. 453 miles .

Step-by-step explanation:

Given: The function [tex]d(t)=458-60t[/tex] models the distance, in miles, that Jessica is from her house t hours after she began returning home.

At t = 5 minutes = [tex]\dfrac{5}{60}[/tex] hour     [1 hour = 60 minutes],

Distance covered by Jessica in 5 minutes = [tex]d(\dfrac{5}{60})=458-60(\dfrac{5}{60})[/tex]

[tex]=458-5=453\ miles[/tex]

Jessica is 453 miles from her home after 5 minutes she began returning home.

Hence, the correct option is D. 453 miles .

What is the product?​

Answers

Answer:x=45.6

Step-by-step explanation:

Answer:

(x^2 - 5x^2 + 4x) / 2x + 8

Step-by-step explanation:

(x^2 - 16) / 2x + 8 * (x^3 - 2x^2 + x) / (x^2 + 3x -4)

(x^5 - 2x^4 - 15x^3 + 32x^2 -16x) / 2(x - 1)(x + 4)(x + 4)

x(x-1)(x-1)(x+4)(x-4) / 2(x - 1)(x + 4)(x + 4)

(x^3 -5x^2 +4x) / 2x + 8

Which of the points are solutions to the inequality check all that apply

Answers

Answer:

B,C,D

ONLY

Step-by-step explanation:

Answer:

(-2,-5)

(1,1)

(3,5)

for ed

Step-by-step explanation:

Need help now!!!! Find the area of a rhombus

Answers

Answer: 80 in

Step-by-step explanation:

Answer:

64 in

Step-by-step explanation:

Jada had read 2/3 of a book . She has read 60 pages so far . How many pages are in the whole book?

Answers

90 pages in the whole book

A boat travel 448 km using 112 litres of gasoline.How far can the boat travel using 1 litre of gasoline​

Answers

Divide total distance by total liters used.

448 km / 112 liters = 4 km per liter.

Using 1 liter of gas the boat can travel 4 km.

Answer:

1 litre = 4 km

Step-by-step explanation:

448/112 = 4/1

Cross multiplication, 448 x 1 divided by 112 = 4

a car is traveling at a constant velocity of 60km/h east for 4 hours. choose the correct statement about the acceleration of the car

Answers

I’m just saying this so I can get points but I think if u divide u should get da answer
So by definition and in math talk, A = dV/dT = 0/4 = 0 acceleration. ANS. A hope that helped

Paul buys 5 bags of chips and 9 bags of pretzels for $16.95. Ian buys 1 bag of chips and 1 bag of pretzels for $2.55. Find the cost of one bag of chips and one bag of pretzels.

Answers

Answer: The cost of one bag of chips is $1.5 and cost of one bag of pretzels is $1.05.

Step-by-step explanation:

Let x= Cost of one bag of chips

y= Cost of one bag of pretzels.

As per given, we have

5x+9y=16.95        ...(i)

x+y=2.55            ...(ii)

Multiply 5 to (ii), we get

5x+5y=12.75     ...(iii)

Eliminate (iii) from (i), we get

[tex]4y=4.2\\\\\Rightarrow\ y=1.05[/tex]

Put value of y in (ii), we get

[tex]x+1.05=2.55\\\\\Rightarrow\ x=2.55-1.05=1.5[/tex]

Hence, the cost of one bag of chips is $1.5 and cost of one bag of pretzels is $1.05.

Find the Measure of angle O
(see image)
Only real answers, please

Answers

Answer:

From the given figure we can see that :---

MN||PO, MN=PO and MP=NO

Therefore, angle M=angle N (adjacent sides of the trapezoid)

[tex](8x - 16) = (6x + 20) \\ 2x = 36 \\ \boxed{x = 18}[/tex]

angle M=angle N= (6×18)+20=108+20 =128°

angle O =(180°-128°)=52°

Hence, angle O is 52°.

It took a car 4 days to travel 2686 miles. What was this car's average speed, in miles per hour? (round to the nearest mile per hour)

Answers

Answer:

28

Step-by-step explanation:

Well we know that in a day there are 24 hrs so in 4 days there will be 96 hrs

so the car travelled 2686 miles in 96 hours

2686/96= 27.9791666667

So the car's average speed is about 28

-5√112
I have to solve this using perfect square factors, is anyone familiar with those?

Answers

Answer:

-20√7

Step-by-step explanation:

Here. we want to write this in the simpler form

we can have 112 as; 16 * 7

√112 = √(16*7)

√112 = 4 √7

so, we have

-5 * 4 √(7 = -20 √7

.) What is the unit rate in miles per gallon?
=

Answers

There is no unit you just need to work it out by dividing the miles travelled by the amount of gallons it took to refill.

Answer:

25 miles per gallon 10 gallons is the UNIT RATE.

PLEASE HELP! A positive number is 1/3 of another number. The sum of the numbers is five less than the square of the larger number. Find the numbers. PLEASE SHOW WORK Thanks!

Answers

Answer: The numbers are 1 and 3.

Step-by-step explanation:

Let x = smaller number , y= larger number.

As per given,

[tex]x=\dfrac{y}{3}[/tex]   ...(i)

[tex]x+y=y^2-5[/tex]       ...(ii)

Put value of x from (i) in (ii)

[tex]\dfrac{y}{3}+y=y^2-5\\\\\Rightarrow\ \dfrac43y=y^2-5\\\\\Rightarrow\ 3y^2-4y-15=0\\\\\Rightarrow\ 3y^2-9y+5y-15=0\\\\\Rightarrow\ 3y(y-3)+5(y-3)=0\\\\\Rightarrow\ (y-3)(3y+5)=0\\\\\Rightarrow\ y=3 \ \ or\ y=\dfrac{-5}{3}[/tex]

Since numbers are positive , so y=3 is correct.

And x will be 1  [from (i)]

Hence, the numbers are 1 and 3.

Is it possible for 2 numbers to have a difference of a 8 and a sum of 1

Answers

Answer:

Yes, it is possible for two numbers to have a difference of 8 and a sum of 1.

Step-by-step explanation:

Which ones are true?

Answers

Answer:

its box 1,3,5

Step-by-step explanation:

Laura bought a DVD for $12 and a CD for $10. After she bought the DVD and CD she had $55 left. How much money did she have before she bought the DVD and CD?

Answers

Answer:

she had $77 to her name

Step-by-step explanation:

Add the cost up from the cd & dvd then add the total from that and the 55

Answer:

She should've had 77 dollars before

Step-by-step explanation:

55 plus 12 = 67

67 plus 10 = 77

x+0.5y=1.5 solve for y

Answers

Answer:

Y = 3 - 2x

Step-by-step explanation:

A 24-foot ladder is placed 7ft from the wall, (as shown)
if the top of the ladder slips down 4 ft, how many feet will the bottom slide out?
a. 4 feet
b. 8 feet
c. 15 feet
d. 20 feet

anyone who answers this (first) will get 15 points!

Answers

I’m pretty sure it’s c.15 feet it’s the best answer
I would say d or c hope it helps

Hy my friend needs help with her math I say it’s pretty easy but it cuz I have my hw to do .. so can someone help her out ?!

Answers

There are 16800 grams :)

Answer: the answer I’m is 16,800

Step-by-step explanation:

To find the number of kg you multiply the number by 1,000.

16.8*1,000=16,800

Explain a line graph in your own words

Answers

Answer:

A line graph (also known as a line plot or line chart) is a graph which uses lines to connect individual data points that display quantitative values over a specified time interval. Line graphs use data point "markers" that are connected by straight lines to aid in visualization.

I’ll give you brainlest if you answer this question correctly it goes to the first person!

Answers

Answer:

It would be -4 for "x" and -6 for "y"

Step-by-step explanation:

x+z=-4+-6=-10

x-y=-4--6=2

21.06 + 3.3x = 6.7x – 9.54

Answers

The answer is 9
21.06+9.54=6.7x-3.3x

What is T6 in exponential form?
6
DONE

Answers

Answer:

T6 is already in exponential form.

Step-by-step explanation:

The reason why T6 is already written in exponential form is beacuse nothing further can be done with this equation.

1 and 2 is all I need and you guys would help me from not getting beat

Answers

Answer:

1. -10

2. -11

Step-by-step explanation:

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