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
agasfer [191]
3 years ago
13

construct a right-angled triangle ABC where angle A =90 degree , BC= 4.5cm and AC= 7cm. please ans fast........ Very urgent. Pls

don't give wrong answers

Mathematics
1 answer:
Katena32 [7]3 years ago
6 0

Answer and Step-by-step explanation: The described right triangle is in the attachment.

As it is shown, AC is the hypotenuse and BC and AB are the sides, so use Pytagorean Theorem to find the unknown measure:

AC² = AB² + BC²

AB^{2} = AC^{2}-BC^{2}

AB =\sqrt{AC^{2}-BC^{2}}

AB =\sqrt{7^{2}-4.5^{2}}

AB =\sqrt{28.75}

AB = 5.4

Then, right triangle ABC measures:

AB = 5.4cm

BC = 4.5cm

AC = 7cm

You might be interested in
The line y = x is transformed to create the line y = − 1 2 x − 1 . Which of the following may be used to describe the transforma
atroni [7]

Answer:

B

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Which of the following is the solution set to the equation -4(x+1)^2 -3=- 51
ANTONII [103]

Answer:

x is equal to 2.5 and -4.5

Step-by-step explanation:

-4(x + 1)² - 3 = -51

-4(x² + 2x + 1) - 3 = -51

-4x² - 8x -3 - 3 = -51

-4x² - 8x - 6 = -51

-4x² - 8x = -45

-4(x^2 + 2x) = -45

-4(x^2 + 2x + 1) = -49

-4(x + 1)² = -49

(x + 1)² = 49/4

x + 1 = ± √(49/4)

x + 1 = ± 7/2

x = -1 ± 3.5

x = 2.5, -4.5

6 0
2 years ago
What is 3x3-45 divided by (4+1)
Lorico [155]

Answer:

3x3-45÷(4+1) is 0.

Step-by-step explanation:

We have to do order of operations so we follow PEMDAS:

P is for Parentheses so we do what's in parentheses first:

(4+1)=5

E is for Exponents but we don't have exponents.

Next is M and D for Multiplication and Division. We have division before multiplication so we should do division first:

45÷5=9

We now have multiplication:

3x3=9

Now we have A and S for addition and subtraction

We don't have addition so we'll do subtraction:

9-9=0

The final answer is 0.

Hope this helps! :)

<h3>CloutAnswers</h3>
5 0
3 years ago
Read 2 more answers
hello could you please help me with this math problem with full explanation which I am unable to solve? Thanks.
neonofarm [45]

Answer:

8 / sqrt(3)

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

tan theta = opp / adj

tan A = BC / AC

tan 30 = BC / 8

8 tan 30 = BC

8 * sqrt(3)/3 = BC

8/3 sqrt(3) = BC

7 0
3 years ago
What is 75miles/hr in feet/second?(1mile = 5280feet)
vodomira [7]

Answer:

110 feet/sec

Step-by-step explanation:

75 miles x 5280 feet

= 396000

396000/60 min

=6600

6600/60 secs

=110 feet/second

8 0
3 years ago
Other questions:
  • How are using graphs equations and tables similar when distinguishing between proportional and nonproportional linear relationsh
    12·1 answer
  • How many tennis balls do you need to balance to scale
    13·2 answers
  • Five cards are dealt from 52.
    5·1 answer
  • Nicole made 24% of her daily salary in tips, receiving 28$. What is her daily salary?
    6·2 answers
  • Which two problems below does this model represent? <br><br> 12 x 2<br> 24 ÷ 6<br> 6 x 4<br> 24 x 6
    12·1 answer
  • Answer this easy question.
    8·2 answers
  • How many squares would have to be shaded so that<br> of the shape is shaded?
    14·2 answers
  • Could someone please tell me the answer
    7·1 answer
  • John is a runner. He runs the 100m sprint in 10x6s. What speed did he travel<br> at? (in m/s)
    13·1 answer
  • 12.99 marked down 25%
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!