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
mafiozo [28]
3 years ago
8

Please help me solve this​

Mathematics
1 answer:
GalinKa [24]3 years ago
8 0
Complementary angles add up to 90 degrees.

Which means.. the equation is
8x-23+7x-7=90
Combine like terms you should get
15x-30=90
Add 30 on both sides
15x=120
Divide 15 x=8
Plug in 8 to (8x-23)
8(8)=64-23=41
m
You might be interested in
A dog groomer could clean four dogs in an hour how many could they clean in 5/6 of an hour
Alex Ar [27]

Answer:

3,333...

Step-by-step explanation: U can do a rule of three

4    ----    1

x    ----    5/6

4 x 5/6 = 20/6

20/6 = 3,33...

7 0
3 years ago
Identify the rule for the following pattern:
djverab [1.8K]
The answer would be add 13 because
12 + 13 would be 25, 25 + 13 would be 38. Hope this helps
8 0
2 years ago
Read 2 more answers
30 PTS!!! ANYONE GOOD AT MATH PLS HELP!
siniylev [52]

Answer:

\frac{2}{\sqrt{5} }

Step-by-step explanation:

To solve this, all we need to do is draw a triangle.  

From the arctan(2) we can deduce that tan(x)=\frac{2}{1}

From that, we can draw our triangle as we know that tan(x) is the opposite side over the adjacent side. Attached is that triangle. Through the Pythagorean Theorem, we can find that the hypotenuse of this right triangle is  \sqrt{5}

Now all we need to do is take the sin of this triangle, which is the opposite side over the hypotenuse

This gives us the value of \frac{2}{\sqrt{5} } which is our answer.

8 0
3 years ago
For a class experiment, Danny's class weighed a log before and after subjecting it to termites. Before subjecting it to termites
m_a_m_a [10]

Answer:

4.75 pounds

Step-by-step explanation:

Before the termites: 5 pounds

After the termites: 1/4 of a pound

Amount that the termites took: x

5 - x = 1/4

Add x to both sides of the equation

5 = 1/4 + x

Subtract 1/4 from both sides of the equation

4 3/4 = x

4 3/4 = 4.75

The termites took 4.75 pounds from the log

Hope this helps :)

7 0
3 years ago
The average person's head has about 100,000 strands of hair.
MrMuchimi

Answer:

B: 1 × 10^5

Step-by-step explanation:

B is correct and C is not becasue you have to have the number multiplied by 10 to a power because then you wouldn't know what number to use as the base. I hope this helps. :)

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is 2 5/8 divided by 3/4
    5·2 answers
  • An equation and the steps to solve it are shown below 2×
    15·1 answer
  • How do you simplify i²⁹? (If you can't tell, that's the imaginary number i^29).
    8·1 answer
  • The standard normal curve shown below models the population distribution of a random variable. What proportion of the values in
    6·1 answer
  • An expression is shown
    11·1 answer
  • Plz help me with this <br> 1/3×3
    7·1 answer
  • Solve 5(x − 8) = 50.
    14·2 answers
  • Hi! i was wondering if someone could help me with this that would be awesome I will try giving a brainly! :)
    15·1 answer
  • During an exploratory activity, a student measured the diameter and circumference of several circular objects. She recorded her
    7·2 answers
  • If 8 metres of ribbon costs me £4.80 how much does 18 metres of cost me
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!