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
Ierofanga [76]
3 years ago
7

1. Remember what we know about vertical angles and solve for x. (SHOW WORK)

Mathematics
1 answer:
marusya05 [52]3 years ago
5 0

Answer:

Ans 1. x= 7

Ans 2.a.

\overline {AC} \cong \overline {JL} \\\textrm{is the additional information required to prove the triangles are congruent by SAS postulate}

Ans.2.b.

\overline {BC} \cong \overline {KL} \\\textrm{is the additional information required to prove the triangles are congruent by the HL theorem}

Step-by-step explanation:

Solution:

1.

Vertically opposite angles are equal.

\therefore (x+16) = (4x-5)\\\therefore (4x-x) = (16+5)\\\therefore (3x) = (21)\\\therefore x = 7

2.a.

proof for Δ BAC ≅ ΔKJL by SAS postulate.

InΔ BAC and Δ KJL

BA ≅  KJ               Given

∠ BAC ≅ ∠ KJL   {measure each angle is 90}

\overline{AC} \cong \overline{JL}\ \textrm{additional information require to prove the tangles are congruent by SAS postulate}\\\therefore \triangle BAC \cong \triangle KJL\ \textrm{By Side-Angle-Side postulate...PROVED}

2.b.

proof for Δ BAC ≅ ΔKJL by HL theorem.

InΔ BAC and Δ KJL

BA ≅  KJ               Given

∠ BAC ≅ ∠ KJL   {measure each angle is 90}

\overline{BC} \cong \overline{KL}\ \textrm{additional information require to prove the tangles are congruent by HL theorem}\\\therefore \triangle BAC \cong \triangle KJL\ \textrm{By Hypotenuse Leg Theorem......PROVED}

You might be interested in
Yolanda has finished 45 percent of her homework and she has finished 27 problems. How many problems was Yolanda assigned
masya89 [10]
If 45 percent of the homework is only 27 problems, she needs to figure out this:

What is 47 percent of 60?
              or
47% x 60

Which is 27. 

So, Yolanda was assigned 60 problems.


6 0
3 years ago
Sam, Maya, and John playing a match, Sam has Half of what Maya has, and maya has fewer than John with three points. Their points
Ksivusya [100]

so john is x and if Maya has the same as john but -3 then

x+x-3

but sam is still missing and she has half of Maya which is 0.5x - 1.5

so the equation is

x+x-3+0.5x-1.5=68

and then you add 3 and 1.5 to 68 which is

2.5x=72.5

and you divide by 2.5 which is 29

John has 29 points


7 0
3 years ago
Question 3 of 25
lys-0071 [83]
An ordered pair of the inverse of f(x)D, (1.2)
3 0
3 years ago
What is the area of the cross section AFGD?
hjlf

Answer: The area is 15in^2

Step-by-step explanation:

The cross section AFGD is a rectangle. Then, its area can be calculated with this formula:

A=l*w

Where:

"A" is the area of the rectangle.

"l" is the lenght of the rectangle.

"w" is the width of the rectangle.

Then, from the figure, you can identify that the dimensions of the rectangle AFGD are:

l=5in\\w=3in

Therefore, you can substitute these values into the formula A=l*w to find the area of the cross section AFGD. Then, you get:

A=(5in)(3in)\\A=15in^2

3 0
2 years ago
Read 2 more answers
What are m and b in the linear equation y=16+6x
mr Goodwill [35]

Answer: B=16 and m=6

Step-by-step explanation:

in y=mx+b the number next to x is always the m/slope and the number without a variable is always the b.

4 0
1 year ago
Other questions:
  • The scale on a drawing of a swimming pool is 1cm=4m. What is the actual length of the pool if it's 10cm long on the drawing
    12·2 answers
  • It takes serina 0.25 hours to drive to school. her route is 16.5 km long. what is serena’s average speed on her drive to school
    10·1 answer
  • Any answers? No need for an explanation if you want to sure, the answer would be appreciated!
    8·1 answer
  • Use a transformation to solve the equation. b + 0.6 = –1
    5·1 answer
  • About 9% of th population is hopelessly romantic. If 2 people are randomly selected from the population, what is the probability
    6·1 answer
  • I need to know how to solve this question
    12·1 answer
  • Natalie likes to mail lots of postcards when she goes on vacation. In 2014 , the cost of a postcard stamp was $0.34.
    6·1 answer
  • Change the decimal 0.0112 to a fraction
    14·2 answers
  • What would be the answer or how do I solve (x)÷9x
    14·1 answer
  • If $400 is invested at the rate of 6% for one year, what will be the total value of the investment (the amount)?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!