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
Alja [10]
3 years ago
9

I NEED HELP now pls pls

Mathematics
2 answers:
just olya [345]3 years ago
7 0
Pythagoras theorem ! (a²+b²=c²)

Q1) AC = √4.8²+3.6²
= √36
= 6cm

Q2) AB= √17.55² - 6.75²
= √262.44
= 16.2cm

Q3) BC= √14² - 6²
= √160
= 12.64911
= 12.6 cm (to 3sf)
Len [333]3 years ago
4 0

Answer:

1) AC = 6 cm

2) AB = 16.2 cm      ( note that ^{2} is = square and \sqrt{  this is = square root)

3) BC = 12.65cm

Step-by-step explanation:

1) a^{2} + b^{2} = c^{2}

4.8^{2} + 3.6^{2} = AC^{2}

36 = AC^{2}

\sqrt{ }36 = AC

AC = 6

2)   a^{2} + b^{2} = c^{2}

AB^{2} + 6.75^{2} = 17.55^{2}

AB^{2} = 308.0025 - 25.5625

AB = \sqrt{ }262.44

AB = 16.2

3)  a^{2} + b^{2} = c^{2}

BC^{2} + 6^{2} = 14^{2}

BC^{2} = 196 - 36

BC = \sqrt{ } 160

BC = 12.65

I hope this helps a little bit.

You might be interested in
Calculate the percentage increase in cases from 2007 to 2009?​
k0ka [10]

Answer:

7.6%

Step-by-step explanation:

1141/15000 × 100 = 7.60667

but it's not an option...

the difference between 15000 and 16141 is 1141

3 0
3 years ago
2 + 3 = 1/2(6 + 4c)​
soldier1979 [14.2K]

Answer:

c=1

Step-by-step explanation:

5=3+2c

2=2c

c=1

8 0
3 years ago
Please answer I need help quick!
morpeh [17]

w = 13

x = 9

y = 1.9

z = 0.5


w + x + y          Plug in the numbers for each variable

13 + 9 + 1.9

22 + 1.9

23.9     The third option is your answer

6 0
3 years ago
a water drum in the shape of a rectangular prism measures 5m by 4 m by 2 m. It is completely full of water. The water is siphone
valina [46]
First of all, the definition of siphoned according to the online dictionary is: 
<span>"a tube </span>used to<span> convey liquid upwards from a reservoir </span>and then <span>down to a lower level of its </span>own <span>accord. Once the liquid </span>has been <span>forced into the tube, </span>typically<span> by suction or immersion, </span>flow continues unaided<span>.'

LOL, the definition doesn't make any difference. Let's actually solve the questions now. 

First, find the volume of the water drum which is 5x4x2= 40m^2. (remeber it is "completely full of water")
</span>
Second, divided it by (1.5)^2 x(pi). Essentially you are dividing the volume of water by the surface area of one side of a cylinder. (note: I square 1.5 since you use the radius not the diameter for the calculation)

Please rate it high and send a personal message if you want me to answer more questions for free. 


7 0
3 years ago
Is 200/345 less than 450?
lidiya [134]

Answer:

Yes it is!

Step-by-step explanation:

If you take 200 and divide that by 345 than you'll get 0.57.

  • 200 ÷ 345
  • 0.579710

Round 2 decimal places? ⇒ 0.58

Round 3 decimal places? ⇒ 0.580

<h2 />
3 0
3 years ago
Other questions:
  • 11. A set of weights includes a 5 lb bar and 8 pairs of weight plates. Each pair of plates weighs 10 lbs. If x
    7·1 answer
  • What are the solutions of this quadratic equation? x + 2x = -2​
    9·1 answer
  • Someone get me the answers ASAP!! thank you
    13·1 answer
  • Please help help help help help
    13·2 answers
  • Plz I need help this is my last question plz help me
    14·1 answer
  • What is the measure of x?<br> x= ✓[?]
    5·2 answers
  • Input value for the function machine that gives an output value of 3.
    14·1 answer
  • WILL MARK YOU BRAINLIEST
    12·1 answer
  • Please help please help please help you
    6·2 answers
  • Round each number to the nearest...
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!