Mathematics High School

Help I will mark brainliestttt

Answers

Answer 1

Answer:

Step-by-step explanation:

its c

Related Questions

Which statements are true about the ordered pair (−1, 5) and the system of equations?

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Answer:

Option D is correct answer.

Step-by-step explanation:

We are given the system of equations:

[tex]x+y=4\\x-y=-6[/tex]

Solving the system of equations to find values of x and y

Let:

[tex]x+y=4--eq(1)\\x-y=-6--eq(2)[/tex]

Adding both equations to find value of x

[tex]x+y=4\\x-y=-6\\------\\2x=-2\\x=\frac{-2}{2}\\x=-1[/tex]

So, we get value of x: x=-1

Now, putting value of x: x=-1 into equation 1 to find value of y

[tex]x+y=4\\Putx=-1\\-1+y=4\\y=4+1\\y=5[/tex]

So, we get value of y: y=5

The ordered pair will be: (-1,5)

So, Option D: The ordered pair(-1,5) is a a solution to the system of equations because it makes both equations true is correct choice.

Checking:

Put x=-1 and y=5 in equation 1

[tex]x+y=4\\-1+5=4\\4=4\:True[/tex]

Put x=-1 and y=5 in equation 2

[tex]x-y=-6-1-5=-6\\-6=-6\:\:\:True[/tex]

So, both equations are true.

Therefore, Option D is correct answer.

Find the value of X AND Y: Show your work.

Answers

We are given:

AB = 7x + 10

BD = 9x - 2

∠DBC = 9y - 9

∠ABC = 90°

AB = BD

Solving for x:

We are given that AB = BD

7x + 10 = 9x - 2 [since AB = 7x+10 and BD = 9x-2]

10 = 2x - 2 [subtracting 7x from both sides]

2x = 12 [adding 2 on both sides]

x = 6 [dividing both sides by 2]

Hence, x = 6

Solving for y:_______________________________________________

We know that AD is a straight line,

So, ∠ABC and ∠DBC must form a linear pair

∠ABC + ∠DBC = 180°

90 + 9y-9 = 180

9y - 9 = 90 [subtracting 90 from both sides]

9y = 99 [adding 9 on both sides]

y = 11 [dividing both sides by 9]

Hence, y = 11

A scuba diver is positioned at -30 feet. How many feet will she have to rise to change the position to -12 feet?

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Answer: 18

Step-by-step explanation:

Sheila rolled a number cube numbered 1 through 6 and tossed a coin for heads, H, or tails, T. Which list represents all the possible outcomes of rolling the number cube and tossing the coin ?
A) 1H, 2T, 3H, 4T, 5H, 6T
B) 12, 34, 56, HT
C) 12, 13, 14, 15, 16, 23, 24, 25, 26, 35, 36, 45, 46, 56, HT
D) 1H, 2H, 3H, 4H, 5H, 6H, 1T, 2T, 3T, 4T, 5T, 6T
Ill give you Brainliest , :)

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Answer:

Step-by-step explanation:

its the most logical one to me

Answer:

Step-by-step explanation:

Pls answer these for me!!! I need it assap because I have to go to dance and when I come back it’s like 10!!! And that’s when I sleep:( and when I eat it’s 12

Answers

Answer:

area models

Step-by-step explanation:

an area modle is something to model area

Answer:

1. round

2. associative property of multiplication

3. commutative property of multiplication

4. mixed number

Seven less than three times a number is 14. Find the number.

Answers

Answer:

Steps:

Use the equation 3x-7=14 to find the missing number.

Add 7 to both sides.

3x=21

Divide both sides to isolate x

x=7

Therefore, the correct answer is 7.

You can check by multiplying 7 by three and then subtracting 7 from it and get 14.

SOMEONE PLEASE HELP!!!
Select the reason why these triangles are
similar. If they are not, select "Not similar".

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Answer:

not similar bcs side are not in ratio

Find the measure of the indicated angle to the nearest degree.

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i think it would be 90 because every triangle equals 180 and since it’s a right angel that’s 90 degrees for the square and 90+90=180

Find XY. (help pleaseee)

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Answer:

XY = 15

Step-by-step explanation:

Its in the image.

I used Pythagoras theorem in solving for the unknown side.

Sorry for the rough working

2(3x-2)=14 pls help

Answers

2(3x-2)=14

1) Distribute 2
(6x-4)=14
2) Add (4) one both sides
6x-4=14
6x+4=14+4
6x=18
3) Divide 6 one both sides
6x / 6 = 18 / 6
4) Solve
X=3

Hope it helps

1. Simplify -3(2x+4)-2
6х+12
-5x-9
-6х-14
-X-2

Answers

Answer:

-6x-14 is the answer. Thx.

Step-by-step explanation:

-3(2x+4)-2

6x-4-2

6x-6

Lancé le 26 novembre 2011, le Rover Curiosity de la Nasa est chargé d'analyser la planète Mars. il a atterri sur la planète rouge le 6 août 2012, parcourant ainsi une distance d'environ 560 millions de kilomètres en 255 jours. quelle est la durée du vol?

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Answer: La durée de la vol entire est 560 millions de miles. La durée par hour est 2.19 millions de miles par hour.

Step-by-step explanation: Je ne sais pas sûr que Je comprends la question exactement. Si on doit trouver la durée par hour, il faut divider 560000000 par 255.

Graph f(x) = 3/2x + 2.

Use the line tool and select two points to graph the line.

Answers

Answer:

(0,2) and (2,5)

Step-by-step explanation:

Jayanti takes shortest route to her home by walking diagonally across a rectangular park. The park measures 60 meters ×80 meters. How much shorter is the root across the park than the route around its edges?

Pls help!!! It's due today in about 6 hours!!!!! I would also like a proper explanation instead of the answer itself!!!!

Answers

Answer:

The route across the park is 40 meter shorter than the route around its edges.

Step-by-step explanation:

We have to calculate the distance for both routes

As the route around the edges is straight, we have to find the sum of length of both edges

Let [tex]R_E[/tex] be the distance of route around edges

[tex]R_E = 80+60 = 140\ meters[/tex]

Now we know that a diagonal divides a rectangle in two right angled triangles in which the diagonal is the hypotenuse.

We can use Pythagoras theorem to find the length of the diagonal

So,

[tex]H^2 = P^2 + B^2[/tex]

In the given scenario

P = 60

B = 80

Now

[tex]H^2 = (60)^2 + (80)^2\\H^2 = 3600+6400\\H^2 = 10000\\\sqrt{H^2} = \sqrt{10000}\\H = 100\ meters[/tex]

In order to calculate that how much shorter is the path across the park, we have to subtract the distance across park from the distance across edges.

[tex]= 140-100 = 40\ meters[/tex]

Hence,

The route across the park is 40 meter shorter than the route around its edges.

What is the slope (1,5),(10,2)

Answers

Answer:

m=-1/3

Step-by-step explanation

y2=2,y1=5 , x2=10 , x1= 1

m=y2-y1/x2-x1

m=2-5/10-1

m=-1/3

3/9 because if u plot the 2 points on a graph it will be 3 up and 9 over.

What are the solutions of the inequality?
-4(-2x+3) > 8x – 14
can someone explain why it’s infinitely many solutions?

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Answer:

( − ∞ , ∞ )

Step-by-step explanation:

Which type of data is more "perfect"?

Answers

Answer:

The answer is Graph Data

heres what i needed help on

Answers

Answer:

1. 6000

2. 40.83%

3. 51.67%

4. misc

Step-by-step explanation:

1 add all the numbers together

2 divide payroll amt by entire amt

3 add the rent and inventory then divide by total spent in the month

4 300/6000= .5 ( which in percent form( multiply by 100) equals 5%)

I need help on this question reallyyyyy fast

Answers

Answer:

40 degrees

Step-by-step explanation:

75 + 65 = 140

The sum of all of the angles of a triangle equals 180

180-140 = 40

A basketball player made 44 out of 100 attempted free throws. What percent of free throws was made?

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Answer:he has a 44% free throw rate

Step-by-step explanation:

44% because 44/100 = .44 .44x100 = 44%

Solve the following equation using the substitution method 2x - y = -2 y = 8

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X will equal 3 bc 2x-8=-2 2x=6 x=3

A student examines the triangle shown above. He notices that lines BE andCD look parallel. The student claims that they are parallel by look aLone ?

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I can’t see any photo

The local grocery store will purchase food items and mark them up 115%. If the wholesale price of an item was $3.50, what price will the customer pay for the item?

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Answer

10.25

Step-by-step explanation:

pls mark me as brainliest its required :)

The answer to this question is 10.25

what is the sqaure root of 38

Answers

the square root is 6.164

Answer:

The square root of 38 is 6.164

Step-by-step explanation:

I hope it helps you ❤❤

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