Sebuah tangga yang panjangnya 5m bersandar pada dinding rumah. Tinggi dinding yang di capai tangga tersebut adalah 3,5m, jarak ujung bawah tangga terhadap dinding?

Answers

Answer 1
Answer:

Answer:

x≅3.57m

Step-by-step explanation:

Kami menerapkan teorema kaki

a^(2)+b^(2)=c^(2)\n   mengganti\nx^(2)+(3.5)^(2)=5^(2)\nx^(2)=5^(2)-(3.5)^(2)\nx^(2)=25-12.25\nx=√(25-12.25)=3.57m


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Justify each step for 2x-5=-20

Answers

2x-5=-20
You'd add 5 to both sides because when you add 5 to -5, they cancel out, therefore making it the right step. 
2x= -15
Divide both sides by 2 because your goal is to try to get x by itself. The opposite of multiplying 2 and x is dividing x by 2.
Final Answer: x= -7.5

Michelle wants to make a long-term investment. She wants to triple an initial investment of$2,000. If she invests at a simple interest rate of 12% per year, approximately how long will it
take her principal to triple?

Answers

Answer:

It will take approximately 17 years

Step-by-step explanation:

Let the initial investment be x

The investment plus the principal yields 3x

The interest is thus 3x-x = 2x

Formula for simple interest is;

I = PRT/100

R is rate = 12%

T is time = ?

x =$2,000 which is the principal

2x = x * 12 * T/100

2 = 12t/100

12t = 200

t = 200/12

t = 16.67 which is approximately 17 years

If I have the height and volume of a cylinder, how do I find the radius? or diameter?

Answers

If you have the volume, that's a pretty good giveaway that you ought to use
the formula for the volume of a cylinder, since it involves all the other things ...
the things you're given, and the things you need to find.  If you know the formula
for the volume of a cylinder, you can whip out the answer in a second.  If you don't
know the formula, then you are toast.

Volume of a cylinder = (pi) (radius)² (length or height)

Divide each side of the equation by (pi) x (height) and you have

(Radius)² = Volume / (pi x height)

You HAVE volume and height, so you can use this equation to calculate
the radius.  Once you have that, if you need the diameter, it's just double
the length of the radius.

That's how.
V=\pi r^2h\n r^2=(V)/(\pi h)\n r=\sqrt{(V)/(\pi h)}

What is the standard form of two and twelve hundredths

Answers

2.12 that's the answer

You are going to the movie theater with your parents and your 8 year-old brother. Adult tickets cost $8, ages 10 -18 cost $7.25 and under age 10 cost $4.25. If you spent an additional $20 on soda and popcorn, what is the total cost of your trip to the movie theater

Answers

total cost = 47.25 if your age is between 10 - 18

Answer:

The answer is $47.50

Step-by-step explanation:

All you have to do is add up the price of each person attending with what age price for each and then add the additional $20 for the sodas and popcorn.

Two parents = 8.00 + 8.00 = $16.00

"You" would most likely be student price, so.. = $7.25

And 8 year-old little brother is under 10, so.. = $4.25

Adding up those three prices we get $27.50, now all to do is add the additional drinks and snacks price. 27.50 + 20.00 = $47.50

Consider this statement:for every 2 boys, there are 4 girls.do you agree with the statement?

Answers

yes, because the ratio would be 1 boy for every 2 girls, meaning 2 boys for 4 girls would make sense. they could be trying to trick you, but I think it's correct. It's not fully simplified but it still is accurate