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
Lilit [14]
3 years ago
14

Help me please I give thanks

Mathematics
2 answers:
klemol [59]3 years ago
8 0
If it helps, I would draw a diagram/picture first and label what you do know. The formula for the area of a trapezoid is A=(a+b)÷2xh a and b are the two bases, h is the height. So let's substitute that into the equation: 95 = [(8+10) ÷ 2] x height. Sorry for all the brackets, computers like this arent really meant for maths.... Now you want to rearrange the equation to make height the subject, like this.... Height = 95 ÷ [(8+10) ÷ 2]. It's easier if we work out the brackets first. 8 +10, quite simple, 18, divided by 2 = 9. Height = 95 ÷ 9 = 10.56 (rounded to two decimal places). To check, use the original formula for area with all the values substituted in: 95 = 9 x 10.56 which is.... 95. Unfortunately I can't change is to the units you need because I live in the UK and don't work in feet and the inches but hopefully you can change 10.5555556 feet into what you need (I think it's 10 foot 7 inches). Sorry for the long answer.
Ede4ka [16]3 years ago
6 0
Use the formula of the area of a trapezoid.
A=(B+b)·h/2
B=10ft
b=8 ft
A=95 ft
(10+8)·h/2=95|·2
18h=95·2
18h=190
h=190:18
h=10,5 ft

<em>Answer: 10,5 ft</em>
You might be interested in
Why is 1/2 and 1/3 similar? Thank you!
kenny6666 [7]
1/2 and 1/3 are similar because 3/6 and 2/6 are similar. They are so close but not the same.
3 0
3 years ago
PLEASE ANSWER PLZZZ HELP
stich3 [128]
0.0307 or what are you giving us here?
3 0
3 years ago
Find the exact value of cos(sin^-1(-5/13))
son4ous [18]

bearing in mind that the hypotenuse is never negative, since it's just a distance unit, so if an angle has a sine ratio of -(5/13) the negative must be the numerator, namely -5/13.

\bf cos\left[ sin^{-1}\left( -\cfrac{5}{13} \right) \right] \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{then we can say that}~\hfill }{sin^{-1}\left( -\cfrac{5}{13} \right)\implies \theta }\qquad \qquad \stackrel{\textit{therefore then}~\hfill }{sin(\theta )=\cfrac{\stackrel{opposite}{-5}}{\stackrel{hypotenuse}{13}}}\impliedby \textit{let's find the \underline{adjacent}}

\bf \textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies \pm\sqrt{c^2-b^2}=a \qquad \begin{cases} c=hypotenuse\\ a=adjacent\\ b=opposite\\ \end{cases} \\\\\\ \pm\sqrt{13^2-(-5)^2}=a\implies \pm\sqrt{144}=a\implies \pm 12=a \\\\[-0.35em] ~\dotfill\\\\ cos\left[ sin^{-1}\left( -\cfrac{5}{13} \right) \right]\implies cos(\theta )=\cfrac{\stackrel{adjacent}{\pm 12}}{13}

le's bear in mind that the sine is negative on both the III and IV Quadrants, so both angles are feasible for this sine and therefore, for the III Quadrant we'd have a negative cosine, and for the IV Quadrant we'd have a positive cosine.

8 0
3 years ago
Plz show working for binary addition. please solve. 11000 + 110101 + 101011​​
olga_2 [115]

Answer: The answer to this is 222112

Step-by-step explanation: Its quite simple actually, you add all these numbers together, you bring up any ones that are extras then you add all the ones to the direct answer :> ( Hope this helps!)

4 0
3 years ago
The volume of a sphere is 2862π m3. What is the surface area of the sphere to the nearest tenth. PLEASE HELP AND QUICK!
coldgirl [10]

Answer:

<h3>A≈974.83</h3><h3>V Volume </h3><h3>2862</h3><h3>Step-by-step explanation:</h3>

<h3>Using the formulas</h3><h3>A=4πr2</h3><h3>V=4</h3><h3>3πr3</h3><h3>Solving forA</h3><h3>A=π⅓(6V)⅔=π⅓·(6·2862)⅔≈974.83372</h3>

<h3>brainliest pls and ur welcome</h3>

5 0
2 years ago
Other questions:
  • Identify the quadrant in which each point is located.
    6·1 answer
  • 26 = 8 + v 2) 3 + p = 8
    15·1 answer
  • What is 5 1/2 converted to a decimal
    11·2 answers
  • 1. A cube-shaped aquarium has edges that are 4 ft. long. The aquarium is filled with water that has a density of
    11·1 answer
  • Last month, Raul bought 6 used books for $7.50. This month he bought 8 used books for $10.00. What is the constant of proportion
    15·1 answer
  • What is -1=(5+x)/6 ?
    13·1 answer
  • HELP!! What is the exponential regression equation that fits these data?
    11·2 answers
  • A fish tank holds 180 gallons of water and is leaking at a rate of 8 gallons per day. A second fish tank holds 160 gallons of wa
    11·1 answer
  • What is 0.000084 sceincetific notation help me out and can u explain how to get the answer​
    6·2 answers
  • Is 45×18 = equal to (40×10) + (40×8) + (5 × 10 + (5×8)​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!