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SSSSS [86.1K]
3 years ago
5

Given that triangle ABC has angle ABC = 90 degrees, AB = 6 cm and BC = 9 cm. Calculate the length of AC in cm to 1 decimal place

Mathematics
1 answer:
Luda [366]3 years ago
6 0

Answer:

AC = 6.7

Step-by-step explanation:

If this is a 90 degree triangle which I am assuming it is you would the Pythagorean theorem c^2 = a^2 + b^2 since bc seems long I am using that as the hypotenuse.

9^2 = 6^2 + b^2

81 = 36 + b^2

81-36 = b^2

45 = b^2

6.7 = b

so AC = 6.7

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Ed is on a road trip. He has already traveled 221 miles and is driving at a rate of 61 miles per hour. Which equation could be u
Anarel [89]

Answer:

A

Step-by-step explanation:

because 631 is the total miles, the equation will be equal to 631.

Second, because he is driving at 61 miles/hour, 61 will be the rate, so

61x+b=631

sense he already drove 221 miles, that will be where b is, so

61x+221=631

7 0
2 years ago
Please help me. Please put correct answer
kicyunya [14]

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- 1  \frac1 2

5 0
3 years ago
HELP ME OUT !!! im stressing out keep getting it wrong
Arlecino [84]

Answer:

x=24, y = 33/360 π×24^2/(sin^2(33° (degrees)))

Step-by-step explanation:

notice that x = MK = HM = 24.

Let the center of the circle be C.

Also, notice the radius of the circle can be expressed as the hypotenuse of HMC. Using some trig, we figure out that the radius is 24/sin(33 degrees).

Using the radius of the circle, we can figure out the circumference. The circumference is pi*r^2=(24/sin(33 degrees))^2*pi=pi*24^2/(sin(33 degrees)^2)

Lastly, notice that y = 33/360*circumference = 33/360 π×24^2/(sin^2(33° (degrees)))

hopefully this helped

8 0
3 years ago
What are the solutions to the system of equations,<br> y=x+21<br> 2x+y=57
kondaur [170]

Answer:

(12,33)

Step-by-step explanation:

This system can be solved using the substitution method. This is where you replace one variable by another.

Step 1:

Plug in x+21 for the y

Step 2:

Combine like terms

2x+x+21=57\\3x+21=57

Step 3:

Subtract 21 from both sides

3x=36

Step 4:

Divide both sides by 3

x=12

Step 5:

Use the first equation and plug in 12 for x

y=12+21

y=33

Step 6:

Proof of work

2(12)+33=57\\24+33=57\\57=57

3 0
3 years ago
Solve the equation<br><br> 34 = -2 + 9x + 16 + x
sdas [7]
The answer for this equation is x=2
8 0
3 years ago
Read 2 more answers
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