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
Ainat [17]
3 years ago
10

Which set of side lengths forms a right triangle?

Mathematics
1 answer:
pochemuha3 years ago
4 0

Awnser:

9,12,18

Step-by-step explanation:

you have to add the smallest numbers together and it has to be greater that the greatest number.

9+12= 21

21>18

You might be interested in
Rectangle A is a scale drawing of Rectangle B and has 25% of its area. If rectangle A has side lengths of 4 cm and 5 cm , what a
SpyIntel [72]

Answer:

8 cm and 10 cm

Step-by-step explanation:

Hello, <em> </em>I can help you with this.

Step 1

According to the question there are two rectangles A and B,

Rectangle A is a scale drawing of Rectangle B and has 25% of its area

in other words

Area_{A}=0.25*Area_{B} (Equation\ 1)\\

Step 2

Let

Rectangle A

length (1)= 4 cm

length (2)= 5 cm

Area_{A}=4\ cm * 5\ cm\\Area_{A}=20\ cm^{2}

put this value into equation 1

Area_{A}=0.25*Area_{B} (Equation\ 1)\\\\20\ cm^{2} =0.25*Area_{B} \\divide\ each\ side\ by\ 0.25\\\frac{20\ cm^{2} }{0.25}=\frac{0.25}{0.25}*Area_{B}\\  Area_{B}=80\ cm^{2}

Now, we know the area of rectangle B, to know its length we need to formule other equation

Step 3

Area_{B}=80\ cm^{2}\\length (1B)*length (2B)=80\ cm^{2} (equation\ 2)\\

the ratio between the lengths must be constant, so the ratio of A must be equal to ratio in B, then

\frac{length(1A)}{length(2A)}=\frac{length(1B)}{length(2B)}  \\\\\\frac{4}{5}= \frac{length(1B)}{length(2B)}\\0.8=\frac{length(1B)}{length(2B)}\\length(1B)=0.8*length(2B) (Equation 3)

Step three

using Eq 1 and Eq 2 find the lengths

put the value of length(1B) into equation (2)

length (1B)*length (2B)=80\ cm^{2} (equation\ 2)\\\(0.8*length(2B)) (*length (2B)=80\ cm^{2} \\\\0.8*(length (2B))^{2} =80\ cm^{2}\\(length (2B))^{2} =\frac{80\ cm^{2}}{0.8} \\(length (2B))^{2}=100\\\sqrt{(length (2B))^{2}}=\sqrt{100\ cm^{2}} \\ length (2B)=10\ cm

Now, put the value of length(2B) into equation 3 to know length (1B)

length(1B)=0.8*length(2B)\\length(1B)=0.8*10\ cm\\length(1B)=8 cm

I really hope this helps you, have a great day.

6 0
3 years ago
Who wants to watch some henti with me
melomori [17]

Answer:

SOAP TRUSTED YOU!

I THOUGHT I COULD TOO

SO WHY IM BLOODY HELL DOES MAKOROV KNOW YOU!!!

7 0
2 years ago
A necklace and earrings cost $144. Six necklaces and five pairs of earrings cost $825
hram777 [196]

Step-by-step explanation:

let necklace : x

let earrings : y

x+y=144 -1st eqn

6x+5y=825 -2nd eqn

y=144-X -3rd eqn

substitute eqn into 2nd eqn

6x+5(144-x)= 825

6x +720-5X =825 (expanded)

X = 825-720

X =105

substitute "X=105" into 1st eqn

(105)+y=144

y= 144-105

y=39

1 necklace = 105$

1 pair of earrings = 39$

(to check back: substitute the value into the original eqn)

6 0
2 years ago
A flat-creen tv costs $1,400.00. the tv is on sale for 35% off. what is the discounted price of the tv
Vinvika [58]
$910.00 is the answer
5 0
2 years ago
Algebra Vocab help? (25 points)
oee [108]
3
6
1
4
2
5

I hope this helps :)
6 0
2 years ago
Other questions:
  • Tom begins his morning shift at 9:20 A.M. He works for 3 hours. He then takes a 50 minute lunch break before working his afterno
    7·1 answer
  • The market research department at a manufacturing plant determines that 40% of the people who purchase the plant's product durin
    9·1 answer
  • 5x-2y+3z-2x-y+4z solve
    13·2 answers
  • Find the product of the following:<br>(i) 5 (-4)<br>(ii) (-8) (-6)​
    14·1 answer
  • 0.16 to percent notation
    12·2 answers
  • Original selling price is 5,000 first markdown is 20% second markdown is 10% markup 12% final markdown 5% what is final selling
    8·1 answer
  • Pls help fast i need help
    8·2 answers
  • Solve. Iready pls help!!!
    12·1 answer
  • Congruent triangles:
    14·2 answers
  • One in a thousand people have a particular disease, and the test for the disease is 98% correct in testing for the disease. On t
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!