1answer.
Меню
Ask question
Login
Signup
Ask question
Menu
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
lidiya
[134]
3 years ago
5
A and B are vertical angles. If A = 4x - 10 and B = 6x - 30, find mA.
Mathematics
Answer
Comment
Send
2
answers:
Andru
[333]
3 years ago
5
0
<span>vertical angles
m<A = m<B
so
</span>4x - 10 = <span>6x - 30
6x - 4x = -10 + 30
2x = 20
x = 10
m<A = </span><span>4x - 10
</span>m<A = 4(10) - 10
m<A = 40 - 10
m<A = 30<span>
</span>
Send
Dovator
[93]
3 years ago
5
0
If A and B are vertical angles, then A = B. Thus, 4x - 10 = 6x - 30, and 10 = x. Check: Does 4(10) - 10 = 6(10) - 30? Does 30 = 30? YES. So x = 10 is correct. The measure of angle A is 30 degrees.
Send
You might be interested in
Which has the greater percent increase?
Soloha48 [4]
I think it would be on a 100 point exam
5
0
3 years ago
Read 2 more answers
What is the distance between -15 and 7
fomenos
22 i think idk sorry if i’m wrong
3
0
3 years ago
Read 2 more answers
А<br> B<br> P<br> M<br> S<br><br> Which ones are congruent
Likurg_2 [28]
Answer:
A and M
Step-by-step explanation:
3
0
2 years ago
Write a related subtraction fact for 5+7=12
Monica [59]
12-7=5 or 12-5=7 i think
5
0
3 years ago
Read 2 more answers
Simplify (b^9)^3 <br><br><br> (I use ^ to symbolize to the power of)
Delvig [45]
D
hope it helps/ not too late
8
0
2 years ago
Other questions:
HELP WITH ONE MANY OR NONE SOLUTION PROBLEM
8
·
2 answers
What is the area of a triangle that has a base of 15 1/4 and a height of 18 in
12
·
1 answer
How does the standard deviation help you to determine concentration of the data and whether or not there are potential outliers?
6
·
1 answer
The average of six tests is 82. What is the total of the six tests?
14
·
1 answer
Joana spent $145 on groceries and after tax the final amount was $156.6. What was the tax rate
6
·
1 answer
PLZZZZZZZZZZZZZZZXX HELP MEEEEEE
13
·
1 answer
Name the longest and shortest sides of the triangle.<br> 95°<br> 40.0<br> 450
8
·
1 answer
Which side lengths represent the sides of a right triangle? A) 1, 1, 2 B) 2, 3, 5 C) 8, 6, 10 D) 12, 16, 21 Must explain
8
·
1 answer
What is the value of side EC ?
5
·
1 answer
I need some help for this problem
11
·
2 answers
×
Add answer
Send
×
Login
E-mail
Password
Remember me
Login
Not registered?
Fast signup
×
Signup
Your nickname
E-mail
Password
Signup
close
Login
Signup
Ask question!