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
labwork [276]
3 years ago
8

Help me pls Isbaksbaosbvshshs

Mathematics
2 answers:
Ilia_Sergeevich [38]3 years ago
6 0

9514 1404 393

Answer:

  3.  84 km

  4.  y = 3/4x

Step-by-step explanation:

3. The map and ground distances can form a proportion:

  ground distance / map distance = 24 km / (2 cm) = x / (7 cm)

Multiplying by 7 cm gives ...

 x = (24 km)(7/2) = 84 km

The actual distance is 84 km.

__

4. We notice that y (9) is less than x (12), so the multiplier of x must be less than 1. The appropriate equation is ...

  y = 3/4x

Jobisdone [24]3 years ago
5 0

Answer:

84

Step-by-step explanation:

The answer is 84. Every 2cm is 24km. 6cm=72 1cm=12

You might be interested in
Given that sin(x)= 7/11, find cos(90-x)
marta [7]
Yes indeed it is 7/11
6 0
3 years ago
What is the slope of this line? y=4x+6
ruslelena [56]

Answer:

The slope is 4

Step-by-step explanation:

So the formula is y=mx+b. M is the slope and b would be your y intercept. So the slope is 4. (I just did this in class)

7 0
3 years ago
If tanA+sinA=m and tanA-sinA=n.prove that m^2-n^2=4√mn
mash [69]

Let a=\tan A and b=\sin A. Then

m^2-n^2=(a+b)^2-(a-b)^2=(a^2+2ab+b^2)-(a^2-2ab+b^2)=4ab

\implies m^2-n^2=4\tan A\sin A

and

mn=(a+b)(a-b)=a^2-b^2

\implies4\sqrt{mn}=4\sqrt{\tan^2A-\sin^2A}

The expression under the square root can be rewritten as

\tan^2A-\sin^2A=\dfrac{\sin^2A}{\cos^2A}-\sin^2A=\sin^2A\left(\dfrac1{\cos^2A}-1\right)=\sin^2A(\sec^2A-1)

Recall that

\sin^2A+\cos^2A=1\implies\tan^2A+1=\sec^2A

so that

\tan^2A-\sin^2A=\sin^2A\tan^2A

and assuming \sin A>0 and \tan A>0, we end up with

4\sqrt{\tan^2A-\sin^2A}=4\tan A\sin A

so that

m^2-n^2=4\sqrt{mn}

as required.

5 0
2 years ago
I WILL MARK BRAINLIEST!!! 25 POINTS!!! Select ALL of the correct systems of equations.
choli [55]
The 3rd and 5th systems of equations are the answer.

Point A is at (3,-1), so all you do is input 3 for x and -1 for y into all the equations. For the systems to work, both equations must work with (3,-1).

Only the third and fifth boxes work.
8 0
3 years ago
Three friends Luke nick and serena are kicking a soccer ball to each other on the beach Luke kicks the ball to Serena who kicks
emmasim [6.3K]
Your answer is gonna be 2
3 0
2 years ago
Other questions:
  • Evaluate 1/3 m- 1- 1/2 n when m=21 and n=12
    15·1 answer
  • You and your friend are 8 slices of pizza out of 12 slices. What percent of the pizza is left?
    10·1 answer
  • If you are given the lengths of two sides of a right triangle and do not know the angle measures of any angle besides the right
    15·2 answers
  • The correlation coefficient for practicing violin and getting better grades in a group of people is 0.8. Analyze the following s
    13·2 answers
  • F = 4GD – m^3D <br><br> solve the equation for D. <br><br> can someone please solve ASAP.
    12·1 answer
  • Solve for x. 2x = 15 + x x = -15 x = 15 x = -15/2 x = 15/2
    10·1 answer
  • What is the difference of the polynomials?<br> (m2n2- 7)-(mm+4)
    15·1 answer
  • Jack gives half of his baseball card collection to Bobby. He then loses 5 of his remaining cards. He now has 13 baseball cards.
    8·1 answer
  • (2sin60°)(3tan60°)—(4tan45°)(2cos45°)​
    6·1 answer
  • -5x = -30<br> what is the property?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!