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
stira [4]
3 years ago
12

Can someone please explain how to solve these please!!!

Mathematics
2 answers:
kolezko [41]3 years ago
5 0

Answer:

16) 54cm^2

17) 16cm^2

Step-by-step explanation:

16) b² + h² = H²

12² + h = 15²

144 + h = 225

h = 225 - 144

h = √81

h = 9

A = 1/2 x b x h

A = 1/2 x 12 x 9

A = 54cm²

17) same method as no 16

h + 9 = 25

h = 25 - 9

h = √16

h = 4

A=1/2 x b x h

A = 1/2 x 3 x 4

A = 16cm²

Bumek [7]3 years ago
4 0

Answer:

A= H<u>b B </u>

     2

Step-by-step explanation:

Q16- = A=75 cm

Q17- = A=10in

Q18- = A=70

You might be interested in
Simplify the expression<br>(-n³+8)+(-n³+5)<br>​
Novosadov [1.4K]
When simplified the answer is -2n^3+13
8 0
4 years ago
Read 2 more answers
Find a slope of the line that passes through (7,-4) and (81,92)​
Leokris [45]

Answer:

48/37

Step-by-step explanation:

Use the formula (y1 - y2)/(x1 - x2).

Plug in your x and y values to get (92 + 4)/(81 - 7).

Simplify down to get 96/74 and simplify again to get 48/37.

5 0
3 years ago
Help!!! Due in 10 minutes!!!!
omeli [17]
I added 40 and 120 to get 160. i devided 160 by the 6.25 she earned and got 25.6. then i rounded up to 26 hours which is the least amount of hours she could’ve worked.
5 0
3 years ago
The attachment below is the question
kotykmax [81]
I would say about 189 people. I found the percentage of 8 out of 11, which I rounded to the nearest tenth and got 73%. Since that is how much do carry brief cases, I took 100-73 and got 23% for those who don’t carry briefcases. Then I found 23% of 700, which is 189. So, 189 out of 700 people do not carry briefcases.
4 0
4 years ago
Atmospheric pressure decreases by about 11.8% for every 1000 meters you climb. The pressure at sea level is 1013 millibars (a un
erica [24]
At sea level, the pressure is 1013, that's when the altitude is at 0, sea level, let's see

\bf \textit{Periodic Exponential Decay}\\\\&#10;A=I(1 - r)^{\frac{t}{p}}\qquad &#10;\begin{cases}&#10;A=\textit{accumulated amount}\to &1013\\&#10;I=\textit{initial amount}\\&#10;r=rate\to 11.8\%\to \frac{11.8}{100}\to &0.118\\&#10;t=\textit{meters climbed}\to &0\\&#10;p=period\to &1000&#10;\end{cases}&#10;\\\\\\&#10;1013=I(1-0.118)^{\frac{0}{1000}}\implies 1013=I\cdot 1\implies 1013=I

so, the inital amount is 1013, when t = 0,

\bf \textit{Periodic Exponential Decay}\\\\&#10;A=I(1- r)^{\frac{t}{p}}\qquad &#10;\begin{cases}&#10;A=\textit{accumulated amount}\\&#10;I=\textit{initial amount}\to &1013\\&#10;r=rate\to 11.8\%\to \frac{11.8}{100}\to &0.118\\&#10;t=\textit{meters climbed}\to &t\\&#10;p=period\to &1000&#10;\end{cases}&#10;\\\\\\&#10;A=1013(1-0.118)^{\frac{t}{1000}}\implies A=1013(0.882)^{\frac{t}{1000}}

now, to check the atmospheric pressure at 4000, simply set t = 4000, to get A.


7 0
3 years ago
Other questions:
  • Lines g, h, and l are parallel and m 2 = 132°.
    13·1 answer
  • Sam has 13 1/2 yards of ribbon. He cuts them 3/4 yards . What is the maximum numbers of pieces of ribbon
    7·1 answer
  • Bill and Ben each have three cards, numbered 4, 5 and 6.
    14·1 answer
  • FIRST TO ANSWER GETS BRAINLIEST AND 5 POINTS ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    9·1 answer
  • The average price for gasoline per gallon is $3.562 if last year the average price for gasoline per gallon was $2.810 what is th
    8·1 answer
  • Express
    11·1 answer
  • PLZ HELP I NEED IT ASAP I WILL GIVE BRAINLIST AND POINTS
    14·1 answer
  • What is the binomial expansion of (x 2y)7? 2x7 14x6y 42x5y2 70x4y3 70x3y4 42x2y5 14xy6 2y7 x7 14x6y 42x5y2 70x4y3 70x3y4 42x2y5
    14·1 answer
  • rohana wants to find the volume of a sphere that has a radius of 10 feet. which equation can she use to solve for this value in
    15·1 answer
  • 6.39x10^23kg in standard form
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!