1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tanya [424]
2 years ago
10

Write an equation representing the relationship of 10:20 shown in the graph ​

Mathematics
1 answer:
Katyanochek1 [597]2 years ago
4 0

Answer:

20=2(10)

Step-by-step explanation:

10:20 is a good point that passes a line to another.

This graph is a linear graph.

The linear equation is

y=mx+b

y = 20 (the y coordinate in the graph)

m = slope

x = 10 (the x coordinate in the graph)

b = y-intercept

<u>Finding slope</u>

To find the equation, we'll need to plug in the values in the formula. To find slope using two points, use the formula, then plug in the values:

\frac{y_2-y_1}{x_2-x_1}

(10, 20) and (20, 40)

=\frac{40-20}{20-10}

= \frac{20}{10}

\bold{m= 2}

<u>Finding the y-intercept</u>

You have to find the slope first before finding the y-intercept. So, plugin one of the two points we used to find the slope into the formula and solve for b

(10, 20)

20=2(10)+b

20=20+b

20-20=20-20+b

\bold{b=0}

The y-intercept is zero, and when it is, you do not add it since zero is nothing.

The equation is 20=2(10)

You might be interested in
Outline the characteristics of a model which predicts its capital adequacy over a decade into the future of long term insurance?
Aleks [24]

Answer:

c

Step-by-step explanation:

answer is c on edg

6 0
3 years ago
Brainliest <br> Please do one of the above<br> (I would appreciate if you did more then one)
Temka [501]

Answer:

a) 52.5 ft. b)40.1ft c)12.5ft d) 72.6

Step-by-step explanation:

a) The height of the lighthouse is 84ft, and the angle of elevation is 58 degrees.

tan58=84/x

find x by dividing 84 by tan58, and you get 52.5ft.

b) do the same thing, except 131 is in the base of the right triangle shape. That being said, do tan17=x/131.

multiply 131 by tan17, and you get x=40.1 feet.

c) This question wants you to find the length of the slide, (basically the hypotenuse).

given the angle to be 46, do sin46=9/x

since sin is opp/hyp

9/sin46= 12.5ft

d) Find the angle of elevation by using inverse tan given the base to be 5, and the height to be 16ft.

tan^-1=(16/5)=theta

x=72.6 hope this helps!

5 0
2 years ago
Read 2 more answers
given examples of relations that have the following properties 1) relexive in some set A and symmetric but not transitive 2) equ
rodikova [14]

Answer: 1) R = {(a, a), (а,b), (b, a), (b, b), (с, с), (b, с), (с, b)}.

It is clearly not transitive since (a, b) ∈ R and (b, c) ∈ R whilst (a, c) ¢ R. On the other hand, it is reflexive since (x, x) ∈ R for all cases of x: x = a, x = b, and x = c. Likewise, it is symmetric since (а, b) ∈ R and (b, а) ∈ R and (b, с) ∈ R and (c, b) ∈ R.

2) Let S=Z and define R = {(x,y) |x and y have the same parity}

i.e., x and y are either both even or both odd.

The parity relation is an equivalence relation.

a. For any x ∈ Z, x has the same parity as itself, so (x,x) ∈ R.

b. If (x,y) ∈ R, x and y have the same parity, so (y,x) ∈ R.

c. If (x.y) ∈ R, and (y,z) ∈ R, then x and z have the same parity as y, so they have the same parity as each other (if y is odd, both x and z are odd; if y is even, both x and z are even), thus (x,z)∈ R.

3) A reflexive relation is a serial relation but the converse is not true. So, for number 3, a relation that is reflexive but not transitive would also be serial but not transitive, so the relation provided in (1) satisfies this condition.

Step-by-step explanation:

1) By definition,

a) R, a relation in a set X, is reflexive if and only if ∀x∈X, xRx ---> xRx.

That is, x works at the same place of x.

b) R is symmetric if and only if ∀x,y ∈ X, xRy ---> yRx

That is if x works at the same place y, then y works at the same place for x.

c) R is transitive if and only if ∀x,y,z ∈ X, xRy∧yRz ---> xRz

That is, if x works at the same place for y and y works at the same place for z, then x works at the same place for z.

2) An equivalence relation on a set S, is a relation on S which is reflexive, symmetric and transitive.

3) A reflexive relation is a serial relation but the converse is not true. So, for number 3, a relation that is reflexive but not transitive would also be serial and not transitive.

QED!

6 0
3 years ago
Equivalent to (6 + y) × 5?
Sergeeva-Olga [200]
The answer is:
It’s equivalent to 30+5y
6 0
3 years ago
Read 2 more answers
John is giving out chocolate to his friends.if he want to give each friend 2/3 of chocolate bar and he has 13 friends,how many c
Nikolay [14]
Multiply 13x2/3 and you should get 8.6
6 0
2 years ago
Read 2 more answers
Other questions:
  • Logan's e-reader sent a notification saying that he has completed 75% of the e-book.
    15·1 answer
  • Maria bought 7 boxes. A week later half of all her boxes were destroyed in a fire. she only has 22 boxes left. How many did she
    10·1 answer
  • What is the answer for 1/5(g - 10)
    15·1 answer
  • If you apply the changes below to the absolute value parent function, f(x) = |x|, what is the equation of the new function?Shift
    15·2 answers
  • What is the value of n in the proportion below n/28 = 4/7​
    15·2 answers
  • Can someone plz help me solved this problem plz! I need help ASAP! Plz help me solved this problem
    8·2 answers
  • F(x) = 2x2<br> Find f(-6)
    14·1 answer
  • Pls help ASAP im in a test​
    10·1 answer
  • Calculate the surface area of this rectangular prism​
    12·1 answer
  • Question 3 Determine the area of the parallelogram below 8 cm 2.8 cm 2.2 cm
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!