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
kati45 [8]
3 years ago
7

Please help me and please write the answer out​

Mathematics
1 answer:
Vitek1552 [10]3 years ago
6 0
15 degrees is the answer
You might be interested in
Question regarding logarithms.
Eddi Din [679]

5^{x-2}-7^{x-3}=7^{x-5}+11\cdot5^{x-4}\\\\5^{x-2}-7^{x-2-1}=7^{x-2-3}+11\cdot5^{x-2-2}\qquad\text{use}\ \dfrac{a^n}{a^m}=a^{n-m}\\\\5^{x-2}-\dfrac{7^{x-2}}{7^1}=\dfrac{7^{x-2}}{7^3}+11\cdot\dfrac{5^{x-2}}{5^2}\\\\5^{x-2}-\dfrac{1}{7}\cdot7^{x-2}=\dfrac{1}{343}\cdot7^{x-2}+\dfrac{11}{25}\cdot5^{x-2}\\\\-\dfrac{1}{7}\cdot7^{x-2}-\dfrac{1}{343}\cdot7^{x-2}=\dfrac{11}{25}\cdot5^{x-2}-5^{x-2}\\\\\left(-\dfrac{1}{7}-\dfrac{1}{343}\right)\cdot7^{x-2}=\left(\dfrac{11}{25}-1\right)\cdot5^{x-2}

\left(-\dfrac{49}{343}-\dfrac{1}{343}\right)\cdot7^{x-2}=-\dfrac{14}{25}\cdot5^{x-2}\\\\-\dfrac{50}{343}\cdot7^{x-2}=-\dfrac{14}{25}\cdot5^{x-2}\qquad\text{multiply both sides by}\ \left(-\dfrac{25}{14}\right)\\\\\dfrac{50\cdot25}{343\cdot14}\cdot7^{x-2}=5^{x-2}\qquad\text{divide both sides by}\ 7^{x-2}\\\\\dfrac{25\cdot25}{343\cdot7}=\dfrac{5^{x-2}}{7^{x-2}}\qquad\text{use}\ \left(\dfrac{a}{b}\right)^n=\dfrac{a^n}{b^n}

\dfrac{5^2\cdot5^2}{7^3\cdot7}=\left(\dfrac{5}{7}\right)^{x-2}\qquad\text{use}\ a^n\cdot a^m=a^{n+m}\\\\\dfrac{5^4}{7^4}=\left(\dfrac{5}{7}\right)^{x-2}\\\\\left(\dfrac{5}{7}\right)^4=\left(\dfrac{5}{7}\right)^{x-2}\iff x-2=4\qquad\text{add 2 to both sides}\\\\\boxed{x=6}

6 0
3 years ago
Read 2 more answers
What is the slope of the line passing through the ponts (3,3) and (5,7)?
antoniya [11.8K]
This problem has a slope of 2

7-3. 4
----- = ---. = 2
5-3. 2
6 0
3 years ago
Read 2 more answers
Help me solve the problem! Please help
Sav [38]

Answer:

m+n=140

Step-by-step explanation:

So the angles in a triangle always add up to 180. We already know that the first angle in the triangle is 40 degrees because it's shown in the angle below the triangle. So we have 140 degrees left since 40 is taken up. That eans m+n=140

6 0
3 years ago
mrs sogiba is catering for her sons birthday party. she has invited some of her sons friends to the party. the number of friends
Alex
The only ones that would work are if the factor is composite and if 1 is added to it it can be divided into 48. So 15 would work. The factor 15 is composite, and if 1 is added it can be divided into 48.Therefore the son is 15.
7 0
3 years ago
Read 2 more answers
We're does the decimal go in the number2445
denis-greek [22]
The decimal goes between four and the other four
8 0
3 years ago
Other questions:
  • What is 5/4 of a right angle
    7·1 answer
  • A clown creates an equation that relates his data of each child´s head size to the length of the balloon he needs to make them a
    6·1 answer
  • Catarina has 57 gumballs. Catarina keeps 1 gumballs. Catarina has 7 friends and gives the remaining gumballs to them. Each frien
    7·1 answer
  • A concrete stepping-stone measures 20 square inches. What is the area of 30 such stones?
    14·1 answer
  • Solve for the value of: 14/5 =z/25
    6·1 answer
  • Hard question!!!please help me !<br>there is english below ​
    9·1 answer
  • -12+8yi=3x-i solve for x and y
    9·1 answer
  • PLS HELP WILL MARK BRAINIEST!!!!TY
    11·1 answer
  • Joe biden and kamala harirs are on a boat and it sinks who is saved<br><br> for 50 points and brain
    14·2 answers
  • Please help i need answer asap
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!