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
Marina CMI [18]
3 years ago
6

Please show your work What is the solution of the equation

x" id="TexFormula1" title=" \sqrt{2x+13} -5=x" alt=" \sqrt{2x+13} -5=x" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Hatshy [7]3 years ago
3 0
Add the five to each side.
then square it to get rid of the square root
2x+13=(5+x)^2
2x+13=x^2+10x+25
2x=x^2+10x+12
x^2+8x+12=0
(x+6)(x+2)
x+6=0
x+2=0
answers are -2 and -6, however, when pluging -6 in it doesnt work, so it is only -2.
You might be interested in
-6+(-8)= give me the anwser please
bija089 [108]
-14 is the answer to it
6 0
4 years ago
Read 2 more answers
the company will match your 401k contributions up to the first 6% of your salary i make $25,000 and contribute $150.00 per month
UNO [17]

Answer:

yes

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
In triangle △ABC, ∠ABC=90°, BH = altitude
Ainat [17]

Answer: The exact length of segment HC is sqrt(3) units

The approximate length is roughly 1.73205080756888 (round that however you need to)

==============================================

Work Shown:

Let x = length of HC

Since AH = 3*HC, this means AH = 3*x

Draw out the picture. This step is optional but helpful in my opinion. The drawing is attached below.

After adding in the altitude BH, we have three similar triangles. So we can form the proportion shown below to solve for x

HC/BH = BH/AH

HC/3 = 3/AH ... replace BH with 3

x/3 = 3/AH ... replace HC with x

x/3 = 3/(3x) ... replace AH with 3x

x/3 = 1/x ... reduce

x*x = 3*1 ... cross multiply

x^2 = 3

x = sqrt(3) ... which is shorthand for "square root"

HC = sqrt(3)

HC = 1.73205080756888 which is approximate

3 0
3 years ago
Russ and Vickie are trying to solve this problem: There are 139 students taking buses to the museum. If each bus holds 24 studen
Tresset [83]

Answer:

5 busses and vicke is right

Step-by-step explanation:

3 0
3 years ago
A rectangle is divided into 15 same size square. how many square cover 1/3 of rectangle?
nexus9112 [7]
Five because it's 15 divided by 3 because it's one third
6 0
3 years ago
Read 2 more answers
Other questions:
  • The city tim lives in has 106,534 people. what is the value of the 6 in 106,534?
    6·2 answers
  • Which of the following statements is true of space exploration?
    12·1 answer
  • Label missing angles 1, 2, 3, 4, and 5 if lines ‘m’ and ‘n’ are parallel
    8·1 answer
  • What’s the volume of the triangular prism
    8·2 answers
  • You are an assistant director of the alumni association at a local university. You attend a presentation given by the university
    8·1 answer
  • Consider the given right triangle. If a=20 and b=20, then angle B=
    15·1 answer
  • Can someone help with all of these I am just learning it and am very confused
    12·1 answer
  • The owner of a small chicken farm must determine a laying and hatching program for 100 hens. There are currently 100 eggs in the
    10·1 answer
  • A number x divided by -1 is at least -4. what is the inequality
    10·2 answers
  • Construct the following with the help of ruler and compass ΔABC with BC = 7.5 cm, AC = 5 cm and ∠C = 60​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!