![lileljusto2829](/avatars/3033.jpg)
lileljusto2829
29.12.2019 •
Mathematics
Math ? 4 questions. i would really appreciate it. ( 40 pts)
Solved
Show answers
More tips
- F Food and Cooking How to Cook Spaghetti Right – Secrets and Tips...
- P Philosophy Personal attitude towards Confession: how to prepare and undergo the procedure correctly?...
- H Health and Medicine Flu: How to Recognize It by the First Symptoms?...
- F Food and Cooking How to Sober Up Quickly? Important Facts and Tips...
- H Health and Medicine How to Properly Take a Blood Sugar Test?...
- H Health and Medicine Simple and Effective: How to Get Rid of Cracked Heels...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
- S Style and Beauty Intimate Haircut: The Reasons, Popularity, and Risks...
- A Art and Culture When Will Eurovision 2011 Take Place?...
Answers on questions: Mathematics
- M Mathematics Which expression represents the quotient of 10 and 2, plus 3 ? Circle the letter of the correct answer. .A 10 = (2+3)B 10/2 + 3C (10 x 2) + 3D 10/2 + 3Jason chose...
- M Mathematics Can someone help me with this the answers are at the bottom...
- M Mathematics Use the diagram to tell whether the angles are vertical angles, a linear pair, or neither. PLEASE HELP...
- M Mathematics A school counselor surveyed 90 randomly selected students about the languages they speak. Of the students surveyed, 15 speak more than one language fluently. Based...
- M Mathematics Can someone please help me...
- M Mathematics First to answer correctly gets brainliest...
- M Mathematics Hbhhbbbbbbbbbbbhbgvhkkjj...
- M Mathematics A teacher has three pieces of wood that measure 2 ft, 3 ft, and 6 ft, respectively. The teacher asks four students to explain how many triangles they can make with...
- M Mathematics I need help on this and the first person who answer correctly gets a BRANLIST...
- M Mathematics The table shows the probabilities of various candidates winning an election....
Ответ:
It's a rhombus
- None of the angles are 90 degrees (can't not be rectangle or square)
- Opposite angles are equal
Top triangle
180 - ( 72 + 72 )
=180 - 144
= 36
same as bottom triangle
2nd pic.
Rhombus...
opposite angles are equal
so m<1 = m<2 = 160
180 - 160 = 20
m< 3 = 20/2 = 10
answer
m<2 = 160
m<3 = 10
3rd pic.
isosceles trapezoid
The legs are congruent by definition
so AB = CD
7y - 4 = 8y - 18
7y - 8y = -18 + 4
- y = -14
y =14
answer y = 14
pic 4
A(-5, -1), B(-9, 6) C (-1, 5) D(3,-2)
A(-5, -1) and C (-1, 5) ---find slope of 1st pair
slope = (5 + 1)/(-1 + 5) = 6/4 = 3/2
B(-9, 6) D(3,-2)---find slope of 2nd pair
slope = (-2 -6)/(3+9) = -8/12= -2/3
slope of 2nd pair (-2/3) is negative and reciprocal of the 1st pair (3/2)
so it's perpendicular
Ответ: