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
cupoosta [38]
3 years ago
8

Please help I give brainliest

Mathematics
1 answer:
finlep [7]3 years ago
5 0

Answer:

9.5 trust me

Step-by-step explanation:

sin 32 = x / 18

x = 9.5

You might be interested in
As part of a screening process, computer chips must be operated in an oven at 145 °C. Ten minutes after starting, the temperatur
Novosadov [1.4K]

Answer:

Step-by-step explanation:

I solved this using initial conditions and calculus, so I hope that's what you are doing in math.  It's actually NOT calculus, just a concept that is taught in calculus.

The initial condition formula we need is

y=Ce^{kt}

Filling in our formula with the 2 conditions we are given:

65=Ce^{10k}   and   85=Ce^{15k}

With those 2 equations, we have 2 unknowns, the C (initial value) and the k (the constant). We know that the initial value (or starting temp) for both conditions is the same, so we solve for C in one equation, sub it into the other equation and solve for k.  If

65=Ce^{10k} then

\frac{65}{e^{10k}}=C which, by exponential rules is the same as

C=65e^{-10k}

Since that value of C is the same as the value of C in the other equation, we sub it in:

85=65e^{-10k}(e^{15k})

Divide both sides by 65 and use the rules of exponents again to get

\frac{85}{65}=e^{-10k+15k} which simplifies down to

\frac{85}{65}=e^{5k}

Take the natural log of both sides to get

ln(\frac{85}{65})=5k

Do the log thing on your calculator to get

.2682639866 = 5k and divide both sides by 5 to find k:

k = .0536527973

Now that we have k, we sub THAT value in to one of the original equations to find C:

65=Ce^{10(.0536527973)}

which simplifies down to

65=Ce^{.536527973}

Raise e to that power on your calculator to get

65 = C(1.710059171) and divide to solve for C:

C = 38.01038064

Now sub in k and C to the final problem when t = 23:

y=38.01038064e^{(.0536527973)(23)} which simplifies a bit to

y=38.01038064e^{1.234014338}

Raise e to that power on your calculator to get

y = 38.01038064(3.434991111) and

finally, the temp at 23 minutes is

130.565

6 0
3 years ago
Adana has 4 skirts, 3 blouses, and
Bumek [7]
Adama can make 7 outfits
6 0
3 years ago
Read 2 more answers
Figure ABCD is transformed to A′B′C′D′, as shown: A coordinate plane is shown. Figure ABCD has vertices A at 3 comma 1, B at 3 c
Marta_Voda [28]
4+4(7x5)= 7/6+58029+>667482+ªº993”QnQ no seeeeeeeeeeeeeeeeeeeeeeeeee
Eeeeeeeeeeeeeee mucho UwU
QwQ
Chauuuuu
7 0
3 years ago
Johnathan can jog 3 2/5 miles in 7/8 hour. Find his average speed in miles per hour???
Allisa [31]
Your speed is 3.9 miles per hour
8 0
3 years ago
X=17-4y<br> y=x-2<br> answer by substitution
GaryK [48]

Answer:

(5,3)

Step-by-step explanation:

x=17-4y

x=17-4x+8

x=25-4x

5x=25

x=5

y=x-2

y=5-2

y=3

(5,3)

5 0
3 years ago
Other questions:
  • For a continuous random variable X, P(20 ≤ X ≤ 40) = 0.15 and P(X &gt; 40) = 0.16. Calculate the following probabilities. (Leave
    8·1 answer
  • Geometry riddle why wouldn’t the man stand in line to step on the scale
    7·2 answers
  • Please help me answer this math question.
    6·1 answer
  • The challenge one on the other one couldn’t see so I made another photo lol plz help
    12·1 answer
  • Two rectangular prims have the same base area. The height of the second prism is twice the height of the first prism. How do the
    13·1 answer
  • Which shows the following expression after the negative exponents have been eliminated? xy^-6/x^-4 y^2, x=/0 y=/0
    11·2 answers
  • Can someone describe this to me? I don't understand..
    11·1 answer
  • Add me on discord: StarLight#4831<br><br> dont answer if u dont have discord
    6·2 answers
  • Cho Q(x)=x^2+mx-12.Biết Q(-3)=0.tìm nghiệm còn lại
    6·1 answer
  • How can you identify similar polygons and triangles?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!