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
SashulF [63]
2 years ago
13

The figure shows the dimensions of a metal sign. The shaded part of the sign is painted blue.

Mathematics
1 answer:
Sonja [21]2 years ago
4 0

Step-by-step explanation:

the area of a triangle is

baseline × height / 2

we have here 2 triangles : the larger, outer shaded one, and the smaller, inner white one.

to get the area of the shaded part, we need to calculate the area of the large triangle and subtract the area of the smaller triangle.

large area :

12 × 15 / 2 = 6 × 15 = 90 ft²

small area :

8 × 10 / 2 = 4 × 10 = 40 ft²

the shaded area is

90 - 40 = 50 ft²

You might be interested in
Determine whether or not the relation is a function. Please help asap
OLga [1]

Answer:

A function can have many x values for a given y value and still be a function but it cannot have many y values for a given x value. You can easily test this by graphing the equation and doing the vertical line test by seeing if a vertical line will intersect the graph only once at all x values, if it passes it is a function. In short what you have here is a function

Step-by-step explanation:

4 0
2 years ago
Find the solution of the differential equation dy/dt = ky, k a constant, that satisfies the given conditions. y(0) = 50, y(5) =
irga5000 [103]

Answer:  The required solution is y=50e^{0.1386t}.

Step-by-step explanation:

We are given to solve the following differential equation :

\dfrac{dy}{dt}=ky~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

where k is a constant and the equation satisfies the conditions y(0) = 50, y(5) = 100.

From equation (i), we have

\dfrac{dy}{y}=kdt.

Integrating both sides, we get

\int\dfrac{dy}{y}=\int kdt\\\\\Rightarrow \log y=kt+c~~~~~~[\textup{c is a constant of integration}]\\\\\Rightarrow y=e^{kt+c}\\\\\Rightarrow y=ae^{kt}~~~~[\textup{where }a=e^c\textup{ is another constant}]

Also, the conditions are

y(0)=50\\\\\Rightarrow ae^0=50\\\\\Rightarrow a=50

and

y(5)=100\\\\\Rightarrow 50e^{5k}=100\\\\\Rightarrow e^{5k}=2\\\\\Rightarrow 5k=\log_e2\\\\\Rightarrow 5k=0.6931\\\\\Rightarrow k=0.1386.

Thus, the required solution is y=50e^{0.1386t}.

8 0
3 years ago
Read 2 more answers
HELP please! ‍♂️<br><br> Last one is 0.5 &lt; x &lt; 1.5<br><br> And none
Ket [755]

1.5 is lesser than 0.5. Oh, wait nevermind I meant to say -1.5 is lesser than 0.5

3 0
3 years ago
I dont kniw and didnt know how to take down a question
stiv31 [10]
I don’t think you can take down a question on Brainily but thanks for the 5 points
have a wonderful day!!!!!
3 0
2 years ago
Chris and his friends are going to the ice cream shop
professor190 [17]

Answer:

2xm

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • I need help ASAP please I only have a few mins
    10·2 answers
  • Which expression has the same value as the one below?<br> 50 + (-17)
    6·2 answers
  • It takes my’khiyah 40 seconds to run 1/3 of a lap. How many laps can she run in 5 minutes
    5·1 answer
  • Write an equation to solve. Tyrone uses 2 cups of flour for each batch of cookies.How much flour will he need to make 31 batches
    9·2 answers
  • Help please.<br><br><br> Thank you.
    15·1 answer
  • Without using a calculator how do you evaluate tan 5π/6.
    15·1 answer
  • a baby blue whale weighed 5200 lbs birth. after 2 days the baby weighed 5710. after 14 days the baby weighed 8180 lbs is it prop
    9·1 answer
  • What is 2a+3b=5<br> B=a-5?
    13·1 answer
  • What does theme add to a story? *
    7·1 answer
  • Find the mean of the following data set: 8, 5, 7, 10, 15, 21
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!