Sign In
Ask Question
Mathematics
Mcduff
25 August, 13:50
Find angle abc (2x+14) (x+7)
+5
Answers (
2
)
Jonathan Hanna
25 August, 14:38
0
Angles represented by 2x+14 and x+7 must add up to 90 degrees. Thus,
2x+14 + x+7 = 90, so that
3x + 21 = 90, or 3x = 69, or x = 23.
Then angle ABC is x+7, or 23+7, or 30 degrees.
If that's the case, then angle CBD must be 60 degrees. Is it?
Subst. 23 for x in 2x+14: 2 (23) + 14 = 46+14 = 60 (degrees). YES.
Comment
Complaint
Link
Jerry Kramer
25 August, 16:44
0
It's a complementary angle, so just solve for x and subtract the CBD from 90,
First, we have to solve for x.
2x + 14 + x + 7 = 90
Combine like terms
3x + 21 = 90
Balance, subtract 21 from each side.
3x = 69
Divide 3 from each side
x = 23.
So know that we know x is 23, we can go about it 2 ways, subtracting the other angle with 90 or just substituting the variable, I'd just substitute the variable for it so just do 23 + 7. That equals 30, angle ABC = 30.
Comment
Complaint
Link
Know the Answer?
Answer
Not Sure About the Answer?
Get an answer to your question ✅
“Find angle abc (2x+14) (x+7) ...”
in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
A box has a square base with an area of 16 sq. in. Its is 14 inches tall. what is the volume?
Answers (1)
What is the recursive formula for the sequence? - 14, - 8, - 2, 4, 10, ...
Answers (1)
Books were 32% off. If the original price of the books was B, what is the sale price in terms of B
Answers (1)
930 is what percent of 1000
Answers (2)
What is the equation of the midline for the function f (x) ? f (x) = 3cos (x) - 2.5
Answers (1)
New Questions in Mathematics
The simple interest on a principal amount, P, borrowed for T years at R% annual interest is given by the following formula. Which of the following describes the relationship between the variables of the simple interest formula? 1.
Answers (1)
Y varies inversely as x. When y = 18, x = 6. Find the constant of variation and determine the value for y when x = 27.
Answers (1)
A sandwich shop has three types of sandwiches: ham, turkey, and chicken. Each sandwich can be ordered with white bread or wheat. Customers can add any combination of the four available toppings.
Answers (1)
When my teacher says find (a) but i found it, what does she mean?
Answers (1)
You order 4 fish sandwiches and a hamburger. The cost of the hamburger is $2.50 your total bill before taxes $14.30. Write and solve an equation to find the cost of a fish sandwich.
Answers (1)
Home
»
Mathematics
» Find angle abc (2x+14) (x+7)
Sign In
Sign Up
Forgot Password?