Can some one help me with this question its hard :( down below ill give brainliest

Answer:

B 12

Step-by-step explanation:

Using pythagoras theorem

In class 7, adjacent angles are defined as two angles that share a common vertex and a common side but do not have any common interior points. They are angles that are next to each other.

Adjacent angles are often used in geometry to describe the angles formed by intersecting lines or figures. The adjacent angles can be classified into two types, namely:

Interior adjacent angles: They are formed by two lines that intersect inside a closed figure, such as in a parallelogram.

Exterior adjacent angles: They are formed by two lines that intersect outside a closed figure, such as in a straight line.

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Answer:

(-4,-11)

Step-by-step explanation:

-11<-4(-4)+11

-11<16+11

-11<27 which is true

Answer:

C

Step-by-step explanation:

2.88*2.2=6.336, which is approximately 6.34.

Answer:

2 hours!

Step-by-step explanation:

The various statements regarding the given scatter plot is checked and found to be true or false.

What is a scatter plot?

A set of dots plotted on a horizontal and vertical axis is known as a scatter plot. Because they can demonstrate the degree of connection, if any, between the values of observed quantities.

1)The equation of the line is y = 2500x - 125.

From the graph we can take two points on the line,

( 2,2250) and ( 10,1250)

Standard equation of line is y = mx + b

where b is y - intercept and m is slope

m = [tex]\frac{y_{2} - y_{1} }{x_{2}-x_{1}}[/tex] = [tex]\frac{1250 - 2250}{10 - 2}[/tex] = -125

From graph, b = 2500

Equation of line is

y = -125x + 2500

Therefore the given equation is false.

2) The group of hikers descends about 250 feet every minute.

      From the graph it is evident that for the interval between two points on y-axis is 250 feet and interval of x-axis is 1 minute.

So the hikers descend 250 feet every minute.

Therefore the given statement is true.

3) The hikers began at the elevation of 2500 feet.

     The x-intercept of the graph is 2500 feet.

      So the beginning elevation is 2500 feet.

 Therefore the statement is true.

4) The graph shows a negative association.

Since the line in the graph is going down and the slope is negative, the graph shows a negative association.

Therefore the statement is true.

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Answer:

2.27

Step-by-step explanation:

Answer:

15

Step-by-step explanation:

the nickels ratio is 4. I then divided 60 : 4 = 15. I then timesed 15 with 3 and then came out 45. I then subtracted 60 with 45 which gave me the answer of 15.

Answer: To solve this system of equations, you can use the substitution method.

First, you can solve one of the equations for one of the variables in terms of the other. For example, you can solve the first equation for y:

y = (-4x - 8)/4

Then, you can substitute this expression for y into the second equation to find the value of x:

-2x - 2((-4x - 8)/4) = 4

-2x + 4x + 8 = 4

2x = -4

x = -2

You can then substitute this value of x back into the first equation to find the value of y:

y = (-4(-2) - 8)/4 = (8 - 8)/4 = 0

Thus, the solution to the system of equations is x = -2 and y = 0.

Step-by-step explanation:

The coeficient of x^3+y^4 in the algebraic expression is the number 2

What is an algebraic expression?

An algebraic expression is a set of numbers and letters that make up an expression that has a meaning, the letters are variables and the numbers are coefficients or independent terms, algebraic expressions can be part of an equation and model mathematical processes.

In the given expression we have the following:

2x^3+ 2y^4

As we are asked for the coefficient of the variable "y" then we must take the number that is just before the letter which in this case is the number 2.

2 is the coefficient of x^3+y^4

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Answer:

Step-by-step explanation:

Im going to need all the dat of all 50 states but heres how you do it.

List those numbers from smallest to largest.

The cancel them out meanign cancel out the first and the last, second and the second last, and keep on going untill you reach one number. If the case is that you dont reach one number then you'll have to work out the average meaning your gonna have to add those two numbers up and then divide by 2

Answer:

17,388³

Step-by-step explanation:

To find volume you need bh the formula, which is base x height. We have to find the base first, so you multiply 27 * 23

27 * 23 = 621

Now you multiply 621 by 28 because 18 is the height.

621 * 28 = 17,388

Therefore, the volume of the figure is 17,388³ (I think, I'm not 100% sure if this is correct)

Hope this helps !!

-Ketifa

Answer:

J

Step-by-step explanation:

Answer:

0.75

Step-by-step explanation:

Answer: 0.75

Step-by-step explanation:

Its correct on AP3X! :)

Answer: 1.442

Step-by-step explanation:

Answer:

Game 1

Equal chance

Game 2

Step-by-step explanation:

A BETTER CHANCE OF WINNING

Each of the problems below describes two different games you can play with a random number generator. In each case, you will win if the random number generator gives you the indicated kind of number. Find the theoretical probability that you win each game below. Decide and justify whether Game I or Game II in each part, (a) through (c), gives you a better chance of winning.

Game I

a.Picking a prime number from the integers between 1 and  20

b.Picking a multiple of 5 from the integers between 1 and  20

c.Picking a multiple of 7 from the integers between 1 and 40  

Hint:

Find the percent chance that each event will occur and compare the results.

a.Picking a prime number from the integers between 21 and  40

b.Picking a multiple of 5 from the integers between 1 and  40

c.Picking a multiple of 6 from the integers between 1 and  25

Answer:

Game 1

Equal chance

game 2

Answer:

1020

Step-by-step explanation:

If his plants are indoors, he must water them at least once a week or they will die.

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Answer:

1/2

Step-by-step explanation:

The value of y is 15 and angle is 68°

A triangle is a polygon with three edges and three vertices.

Given that, a triangle KLM

We have, KL = MK

We know that, In a triangle, sides opposite to equal angles are equal, therefore,

∠ M ≅ ∠ L

5y-19 = 56

5y = 75

y = 15

We know, Angle sum property of triangle states that the sum of interior angles of a triangle is 180°.

∠ M + ∠ L + ∠ K = 180°

56° + 56° + ∠ K = 180°

∠ K = 180° - 112°

∠ K = 68°

Hence, the answers are; ∠ K = 68° and y = 15

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Answer:

1/10

Step-by-step explanation:

There can be 10 total digits in the tens place: 0,1,2,3,4,5,6,7,8,9

if the middle is 0 the probability is 10%

The probability that the middle digit is 0 is 1/10.

A combination is a mathematical technique that determines the number of possible arrangements in a collection of items where the order of the selection does not matter.

A company sells bicycle locks with a combination made of 3 numbers.

Each number can be any digit from 0 to 9 and the digits may be repeated.

One of these locks is chosen at random.

There can be 10 total digits in the tens place: 0,1,2,3,4,5,6,7,8,9.

The probability that the middle digit is 0 is given by;

[tex]\rm Probability=\dfrac{Probability \ of \ middle \ digit \ 0}{Total \ number \ of \ digits}\\\\\ Probability=\dfrac{1}{10}[/tex]

Hence, the probability that the middle digit is 0 is 1/10.

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Answer:

3 x 2.5 x 2.5 = 6.325 centimeter cubed

Step-by-step explanation:

mark me brainliest please

formula for a prism is L x W x H

Answer:

18.75 cm³

Step-by-step explanation:

3 × 2.5 × 2.5

18.75

Answer:

2km

Step-by-step explanation:

Jamie is jogging from the park to the school

He has jogged 1.62 km so far

He has 0.38 km left

Hence he distance of the park from the school Is

1.62+0.38

= 2km

Answer:

AC=10    BC=8

Step-by-step explanation:

Use Soh Cah Toa.

sin=opposite/hypotenuse

Cosine=adjacent/hypotenuse

Tangent=opposite/adjacent

Answer:

8.43 years

Step-by-step explanation:

Given data

Cost price P= $4995

Rate r= 10%

FInal amount A= $2150

The expression for the time/duration is given as

t= ln(A/p)/r

t= ln(2150/4995)/0.1

t= ln(0.430)/0.1

t= 0.843/0.1

t= 8.43

Hence the time it will take is 8.43 years

So the solution to the system of equations is:

c = 4, d = 1

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, separated by the 'equal' sign.

x ax2 + bx + c = 0 is a quadratic equation, which is a second-order polynomial equation in a single variable. a 0. It has at least one solution since it is a second-order polynomial equation, which is guaranteed by the algebraic basic theorem.

Given equation I is [tex]3c+6d=18[/tex] and equation II is [tex]6c-2d=22[/tex]

We can start by multiplying the first equation by -2 and adding it to the second equation. This will eliminate the d variable:

[tex]-6c - 12d = -36[/tex]

[tex]6c - 2d = 22[/tex]

[tex]0c - 14d = -14[/tex]

solving this we know value of [tex]d=1[/tex]

So we know that d = 1, and we can substitute that into the first equation to find the value of c:

[tex]3c + 6d = 18[/tex]

[tex]3c + 6(1) = 18[/tex]

[tex]3c = 12[/tex]

[tex]c = 4[/tex]

So the solution to the system of equations is:

[tex]c = 4, d = 1[/tex]

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To find the expected value of the sum of the numbers on the two selected pieces of paper, we need to calculate the probability of each possible outcome and then multiply that probability by the value of the outcome. The expected  value of the sum of the numbers on the two selected pieces of paper is 6.1625.

Therefore the answer is 6.1625.

The possible outcomes for the first bag are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, each with a probability of 1/10.

The possible outcomes for the second bag are 20, 21, 22, 23, 24, 25, 26, 27, each with a probability of 1/8.

The possible outcomes for the sum of the numbers on the two selected pieces of paper are:

(1,20) ,(1,21) ,(1,22) ,(1,23) ,(1,24) ,(1,25) ,(1,26) ,(1,27)

(2,20) ,(2,21) ,(2,22) ,(2,23) ,(2,24) ,(2,25) ,(2,26) ,(2,27)

(3,20) ,(3,21) ,(3,22) ,(3,23) ,(3,24) ,(3,25) ,(3,26) ,(3,27)

...

(10,20) ,(10,21) ,(10,22) ,(10,23) ,(10,24) ,(10,25) ,(10,26) ,(10,27)

The expected value of the sum of the numbers on the two selected pieces of paper is the sum of the products of each possible outcome and its corresponding probability.

The probability of each outcome is (1/10) * (1/8) = 1/80

So the expected value of the sum of the numbers on the two selected pieces of paper is

(1 + 21)×(1/80) + (1 + 22)×(1/80) + (1 + 23)×(1/80) + (1 + 24)×(1/80) + .... + (10 + 27)×(1/80) = (21 + 22 + 23 + 24 + ... + 37)/80

= (20×17 + 1 + 2 + ... + 17)/80

= (340 + 17×(17 + 1)/ 2)/ 80

= (340 + 17×9)/ 80

= 6.1625

So the expected value of the sum of the numbers on the two selected pieces of paper is 6.1625

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