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Bingel [31]
3 years ago
13

Can someone help me pls

Mathematics
1 answer:
Whitepunk [10]3 years ago
5 0

Answer:

AB = 18

Step-by-step explanation:

tan 45° = 18/AB

1 = 18/AB

AB = 18

You might be interested in
Is 9.521521521 rational or irrational
enyata [817]

If the numbers after the decimal terminate, yes, it's rational.

9.521521521 = 9,521,521,521 / 1,000,000,000

If they don't terminate, but the pattern continues (which I suspect is the case here), yes, it's still rational.

If <em>x</em> = 9.521521521…, then

1000<em>x</em> = 9521.521521521…

Subtract <em>x</em> from this to eliminate the fractional part:

1000<em>x</em> - <em>x</em> = 9521.521521521… - 9.521521521…

999<em>x</em> = 9512

<em>x</em> = 9512/999

If they don't terminate, but the pattern does <em>not</em> continue, meaning the next few digits could be something random like

9.521521521<u>19484929271283583457</u>…

then the number would be irrational.

7 0
3 years ago
I have 4 different single digit numbers. Only one of my numbers is even. The largest number is one more than the number of inche
MA_775_DIABLO [31]
2,3,5, and 7.
because 7 is one more inch than 1/2 a foot, and the total is 17 so
17-7=10
so you need 3 more numbers and one is even
odd, odd, even
3 + 5 + 2= 10
so
10+7=17
2,3,5,7
8 0
3 years ago
Read 2 more answers
(20 pts) (PLZ HELP)(ANSWER UNDER 10MINS PLZ)Caroline is playing on a swing at the playground. The swing's motion is shown in the
Zolol [24]

To begin with, the amplitude of the sine curve, according to the graph, is 70 at the maximum. So far far what you know is

y = 70 sin(something)

Next a full sine wave occurs after 15 seconds approximately. That means after 15 second, you should get 2*pi. Call the values along the x axis = t

y = 70*sin(t/15 * 2*pi) That should be your full answer. Check it out. Where is the maximum? It is just under 4 seconds. It's an estimation. It's not easy to read, but call it 3.9

y = 70*sin(3.9/15 * 2pi) Multiply 2 * 3.9

y = 70* sin(7.8/15 * pi) Multiply 7.8 * pi: Use 3.14 for pi

y = 70 * sin(24.49/ 15)

y = 70* sin(1.633) Make sure you are in radians for the next step.

y = 70*0.99806 = 69.86 inches. which is pretty close to 70.

If this is homework, be sure and point out that the graph is not really accurate and that the end number on the x axis should be 24 not 22.

y = 70 sin (t/15 * 2pi) <<<< answer.


6 0
4 years ago
( brainliest )<br><br> What is the area of this figure?
algol [13]
Pretty sure its 132 

Hope this helps!
4 0
3 years ago
Find the missing length.
Ivanshal [37]
Find this using the pythagoream theorem for right triangles.

a^2+b^2=c^2
12^2+9^2=c^2

144+81= c^2
225=c^2
15=c

Final answer: c=15
7 0
4 years ago
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