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
ICE Princess25 [194]
2 years ago
10

13 km 5 km What is the length of the missing leg?

Mathematics
1 answer:
ale4655 [162]2 years ago
3 0
Pythagoras' theorem:
b^2 = c^2 - a^2
Substitute in the values:
b^2 = 13^2 - 12^2
b^2 = 25
Square root it
b = 5km
The answer is option B. 5km
You might be interested in
Dixon is performing stunts for a show where he launches off from the edge of a ramp on his motorbike. The graph shown below trac
scoray [572]

Answer:

Answer+Step-by-step explanation: 2019 game of the year award limited edition.

Step-by-step explanation:

This is all about carefully examining the slope. If you look carefully you will notice B curves in at the top just a little more than A so the first one is correct.

The second one is obviously not true.

The third one is disproved by the first.

The fourth one is correct as C is the peak and has little to no drop or rise.

The 5th one is correct, after spending several minutes examining it with 200%+ zoom I will tell you that it is correct B and D are the same.

I'm not 100% sure but I'm probably 95% sure that The 6th one is incorrect and A is changing height faster than D.

pLeAsE GiVe bRaInLiEsT

3 0
2 years ago
Prove that sin^4x + cos^4x= sinxcosx
yKpoI14uk [10]

Answer:

(the relation you wrote is not correct, there may be something missing, so I will simplify the initial expression)

Here we have the equation:

sin^4(x) + cos^4(x)

We can rewrite this as:

(sin^2(x))^2 + (cos^2(x))^2

Now we can add and subtract cos^2(x)*sin^2(x) to get:

(sin^2(x))^2 + (cos^2(x))^2 + 2*cos^2(x)*sin^2(x) - 2*cos^2(x)*sin^2(x)

We can complete squares to get:

(cos^2(x) + sin^2(x))^2 - 2*cos(x)^2*sin(x)^2

and we know that:

cos^2(x) + sin^2(x) = 1

then:

1 - 2*sin(x)^2*cos(x)^2

This is the closest expression to what you wrote.

We also know that:

sin(x)*cos(x) = (1/2)*sin(2*x)

If we replace that, we get:

1 - \frac{sin^2(2*x)}{2}

Then the simplification is:

cos^4(x) + sin^4(x)  = 1 - \frac{sin^2(2*x)}{2}

7 0
2 years ago
Please help me! 17 / 13 - 3 / 2
zhenek [66]
Point two should be your answer
8 0
3 years ago
What is the inequality shown with image attached
Mariana [72]

Answer:

-3>=x this is because the circle is closed as well as the arrow going the opposite from -3

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
(1,-7) with a slope of -5 as an equation
Butoxors [25]

I'm assuming you want an equation with a slope of -5 that also passes through the point (1, -7).

An equation that fits this is

y =  - 5x - 2

Hope this helps!

4 0
3 years ago
Other questions:
  • 5 pens for 4.85 what is the unit price
    12·1 answer
  • Find the volume of the cylinder <br> A-16990<br> B-8491<br> C-4247<br> D-2369
    6·1 answer
  • Tell whether the ordered pair is a solution to the given in equality (-2,1);y&lt;-2x+7
    11·1 answer
  • BRAINLIEST TO WHOEVER GETS IT ASAP PLEASEEE
    8·1 answer
  • What is the greatest common factor of 200 and 140 
    5·2 answers
  • Isla flipped a coin 30 times. The coin landed heads up 9 times and tails up 21 times.
    11·1 answer
  • What is the value of x ? please explain ! ill mark brainlest !!
    15·1 answer
  • 15-2(7 - x) = 7<br>(Multi- step equations)<br>show steps please:)&lt;4​
    5·2 answers
  • Suppose that the water level of a river is 34 feet and that it is receding at a rate of 0.5 foot per day. Write an equation for
    10·1 answer
  • HELP PLEASE!!! I NEED A ANSWER ASAP
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!