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3 years ago

What’s the answer to this

Mathematics

1 answer:

LenaWriter [7]3 years ago

8 0

Hello!

We need to find the height of the kite in order to find the volume. We are given the surface area, which is the area of each face added up. As you can see, we can see, based on our given information, we have 1800 with the top and bottom. We can write an equation to solve below.

1800+60h+60h=7200

1800+120h=7200

Now we solve. First we subtract 1800 from both sides.

120h=5400

Divide both sides by 120.

h=45

Just to make sure, we will plug our height into the equation to make sure it is true.

1800+2700+2700=7200

Now we just multiply our base by height.

900(45)=40,500

Therefore, the volume is 40,500 cm³.

I hope this helps!

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Solve the equation below

Agata [3.3K]

Set up the equation:

4(8.75x-2)=97
35x-8 =97
35x =97+8
35x =105
x. =3

The value of x is 3.

7 0

2 years ago

Dinesh has 28 points in a trivia game. He answers a question correctly and earns 35 points. Then, he answers a multipart questio

ioda

Answer:

The answer for the problem would be -12

Step-by-step explanation:

(28+35) = 63

63-75= -12

6 0

2 years ago

I don't need you to work it out, just theorem(s) i need to reach the answer :)

VikaD [51]

Not sure why such an old question is showing up on my feed...

Anyway, let $x=\tan^{-1}\dfrac43$ and $y=\sin^{-1}\dfrac35$ . Then we want to find the exact value of $\cos(x-y)$ .

Use the angle difference identity:

$\cos(x-y)=\cos x\cos y+\sin x\sin y$

and right away we find $\sin y=\dfrac35$ . By the Pythagorean theorem, we also find $\cos y=\dfrac45$ . (Actually, this could potentially be negative, but let's assume all angles are in the first quadrant for convenience.)

Meanwhile, if $\tan x=\dfrac43$ , then (by Pythagorean theorem) $\sec x=\dfrac53$ , so $\cos x=\dfrac35$ . And from this, $\sin x=\dfrac45$ .

So,

$\cos\left(\tan^{-1}\dfrac43-\sin^{-1}\dfrac35\right)=\dfrac35\cdot\dfrac45+\dfrac45\cdot\dfrac35=\dfrac{24}{25}$

7 0

3 years ago

3:20pm to 8:00 pm how many hour's is that

Alex

4 hours and 40 minutes

6 0

2 years ago

Y=3x<br>2y-5x=4 <br>I need the work and answer for it

telo118 [61]

U plug in the y
2 (3x) -5x=4
simplify
6x -5x =4
solve
x=4
so now you know x=4 so plug that in for x
y= 3(4)
y=12
check your answer
2(12)-5(4)=4
solve
24-20=4
4=4
so you now you got the answer right !

hope that helps!

3 0

3 years ago