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
nataly862011 [7]
3 years ago
11

Need help fast! need the value of x and please show the work!

Mathematics
1 answer:
lions [1.4K]3 years ago
6 0

By the external angle of a triangle theorem

m < ABD = m < BDC + m < BCD

That is  5x + 2 = x^2 - 1 + 4x - 3

x^2  + 4x - 5x - 1 - 3 - 2 = 0

x^2 - x - 6 = 0

(x - 3)(x + 2) = 0

x = 3,  -2

x cannot be -2 because that would make the external angle, 5x-2 negative.

Answer x = 3

You might be interested in
What is 3a+a+5b-2b?<br>​
9966 [12]

Answer:

4a + 3b

Step-by-step explanation:

Mark brainliest

5 0
3 years ago
Read 2 more answers
The wettest April for Albuquerque, NM, was recorded in 1905. The amount was 1.2in more than the amount recorded for the second w
SCORPION-xisa [38]
The 1905 was 3.0 inches while 2004 was 4.2 inches since they are 1.2 apart and they add up to 7.2
4 0
3 years ago
-1 1/2 + (-1 1/2 <br> i need help
kirza4 [7]
-3
When there are two negative be added your answer will always be negative. In this case add the ones(2) and then add the 1/2s(1) and then add the two. For this you’ll get 3 but just add the negative sign.
6 0
2 years ago
What are the solutions to the equation 3(X -4)(X +5) =0
cestrela7 [59]
Answer should be: X = 4, -5
4 0
3 years ago
Express in exponential form. log2(x)=3
igomit [66]
The relationship between logarithms and exponentials is that they are inverses of each other. That is, they are reflected about the line y = x.
In order to rewrite logarithms, we need to understand the basic fundamentals of them:
log_ab = y

This is essentially saying: "If we raise a to the y-th power, we get the answer to b".
Using this, we can say:
log_2x = 3 \rightarrow 2^{3} = x
3 0
2 years ago
Other questions:
  • Which of the following proves ALMN= AOPQ?
    13·1 answer
  • Can someone help me figure this out
    10·1 answer
  • You choose two different songs on a music playlist at random. Out of 80 songs on the playlist, 36 are hip hop songs. The first s
    7·1 answer
  • Determine the discriminant for the given equation x^2+4x+5=0. Then describe the roots(how many and what type).
    5·1 answer
  • Cuál es el resultado
    12·2 answers
  • 10. 0.75,1/2, 0.4,and 1/5 from least to greatest
    6·1 answer
  • Maxine wants a necklace 35 beads long how many blue and black beads does she need
    8·1 answer
  • How to add and subtract positive and negative numbers?
    11·1 answer
  • What is the value of 3 in 6035
    8·1 answer
  • Which of the following are the coordinates of the vertex of y = −x2 + 2x + 1? (2, 1) (1, –2) (1, 2) (–2, 1)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!