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
Flauer [41]
3 years ago
5

I dont know how to do any of these problems can someone help me

Mathematics
1 answer:
HACTEHA [7]3 years ago
4 0

Answer:

#7.  JK = 1

Step-by-step explanation:

So all these problems are similar in the fact that you are given three pieces of information and you need to determine x.  Let's look at #7.

We are to find the length JK but we are given it in terms of x.  To find the length, we need to find x.  Using the information we have about KL and JL, we can find this.  Note, the value of JL is 5, and the value of KL is x + 8.

JK + KL = JL

( 2x + 9 ) + ( x + 8 ) = 5

3x + 17 = 5

3x = -12

x = -4

Now that we have the value of x,  we can find the value of JK:

JK = 2x + 9

JK = 2(-4) + 9

JK = -8 + 9

JK = 1

Hence, the length of JK is 1.

Using this same basic idea, you can solve all of these problems.

Cheers.

You might be interested in
To earn a prize sally had to sell at least 9 out of the 20 candy bars for the band fundraiser what percentage of the candy bars
Marina CMI [18]

Answer:

45%

trust me i took this test before

Step-by-step explanation:

8 0
2 years ago
I need help with this page
Molodets [167]
For 1 the answer is Junior High B which is letter C
3 0
3 years ago
Which of the following are like terms to the term 2x (which more than one apply?
GuDViN [60]
-2x and 4x
and x2 so tats it
6 0
3 years ago
B. In Buffalo, New York, the temperature was -14°F in the morning. If the temperature
tino4ka555 [31]
It would be -7f degrees because -14-7 would equal -7
3 0
3 years ago
Read 2 more answers
How do you determine if a relation is quadratic by calculation differences, analyzing a graph, examining the degree in an equati
Kryger [21]

1) We can determine by the table of values whether a function is a quadratic one by considering this example:

x | y 1st difference 2nd difference

0 0 3 -0 = 3 7-3 = 4

1 3 10 -3 = 7 11 -7 = 4

2 10 21 -10 =11 15 -11 = 4

3 21 36-21 = 15 19-5 = 4

4 36 55-36= 19

5 55

2) Let's subtract the values of y this way:

3 -0 = 3

10 -3 = 7

21 -10 = 11

36 -21 = 15

55 -36 = 19

Now let's subtract the differences we've just found:

7 -3 = 4

11-7 = 4

15-11 = 4

19-15 = 4

So, if the "second difference" is constant (same result) then it means we have a quadratic function just by analyzing the table.

3) Hence, we can determine if this is a quadratic relation calculating the second difference of the y-values if the second difference yields the same value. The graph must be a parabola and the highest coefficient must be 2

4 0
1 year ago
Other questions:
  • One day, a person went to a horse racing area. instead of counting the number of humans and horses, he counted 72 heads and 192
    5·1 answer
  • 5/6 b + 5 - 2/3 b -2
    12·1 answer
  • a triangle with angles X(-6,1), Y(4,0), Z(1,3) is translated left 9 and up 12 . What are the new coordinates of the triangle
    15·1 answer
  • What are fractions that are greater than 4 1/3 but less than 5 2/3
    7·1 answer
  • A model is made of a car. The car is 9 feet long and the model is 6 inches long. What is the ratio of the length of the car to t
    10·2 answers
  • Given the sets A = {7, 11, 14, 17, 21} and B = {0, 11, 15, 17, 34}, the set A∩B is given by:
    9·1 answer
  • The chef in the school cafeteria baked 12 dozen cookies for the fourth-grade holiday party. Mr. J’s class ate 26 cookies. The st
    6·2 answers
  • 20 is what percent of 800?
    10·2 answers
  • Please answer the question in the picture because it would paste correctly thanksss
    7·2 answers
  • Convert the following to standard form <br><br>y=2/5 x - 1/3​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!