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
Tamiku [17]
2 years ago
11

Please confused??????

Mathematics
1 answer:
Goshia [24]2 years ago
7 0

Answer:

QR = 5.4

Step-by-step explanation:

These pentagons are similar meaning their corresponding parts have the same scale factor.

AB to PQ  = 2 to 1.8  

2/1.8 = 10/9                        2 ÷ 1.8 = 2 ÷ 1 8/10; 2 ÷ 18/10 ; 2 × 10/18 = 20/18 ; 10/9

AB : PQ =  BC :  QR

\frac{10}{9} = \frac{6}{QR}

10QR = 54

 QR = 54/10

  QR = 5.4

You might be interested in
Combine like terms 7a - a+ 16 = ?
dexar [7]
6a+16

Explanation:
If there's just a variable, there's an understood 1 in front of it. So what that really says is:

7a-1a+16

So, you combine the a's. 7a minus 1a is 6a. Same as 7-1,but you have a variable stuck on the end of it.

6a+16

:^)
4 0
3 years ago
Read 2 more answers
Two less than a number cubed<br><br>múltiple choices<br>2−x³<br><br>x² - 3<br><br>x³- 2<br><br>3-x²​
ella [17]

The first one (2-x^3) is the correct one

5 0
3 years ago
What is the value of the expression 30+(-6)?<br> A -180<br> B -5<br> C 5<br> D 24
Evgesh-ka [11]

Answer:

24

Step-by-step explanation:

from the question above,

30+(-6) =

when plus is multiplying minus it's minus

+ × - = -

30-6 = 24

4 0
2 years ago
Read 2 more answers
Prove that 1/sin^2A -1/tan^2A= 1
Vika [28.1K]

Answer:

Step-by-step explanation:

LHS =\dfrac{1}{Sin^{2} \ A }-\dfrac{1}{Tan^{2} \ A }\\\\\\ = \dfrac{1}{sin^{2} \ A}- \dfrac{1}{\dfrac{Sin^{2} \ A}{Cos^{2} \ A}}\\\\\\= \dfrac{1}{sin^{2} \ A } - \dfrac{Cos^{2} \ A}{Sin^{2} \ A}\\\\\\= \dfrac{1-Cos^{2} \ A}{Sin^{2} \ A}\\\\\\= \dfrac{Sin^{2} \ A}{Sin^{2} \ A}\\\\\\= 1 = \ RHS

Hint: 1 - Cos² A = Sin² A

4 0
3 years ago
How to solve all of this
photoshop1234 [79]
Start circle: πd = (3.14)(19) = 59.7

Move diagonally to the circle with the radius of 6.2.

Second circle: 2πr = 2(3.14)(6.2) = 39

Move upwards to the circle with the radius of 10.5

third circle: 2πr = 2(3.14)(10.5) = 66

Move right to the circle with the diameter of 16.6

Fourth circle: πd = (3.14)(16.6) = 52.2

Move down to the circle with the diameter of 7.7

fifth circle: πd = (3.14)(7.7) = 24.2

Move down to the circle with the diameter of 50

Sixth circle: πd = (3.14)(50) = 157.1

Move left to the circle with the radius of 11.8

Seventh circle: 2πr = 2(3.14)(11.8) = 74.1

Move down to the circle with the radius of 38

Eight circle: 2πr = 2(3.14)(38) = 238.8

Move right to the circle with the diameter of 1.1

ninth circle: πd = (3.14)(1.1) = 3.5

Move right to the circle with the radius of 14.8

10th circle = 2πr = 2(3.14)(14.8) = 93

Move up to the end.

Hope this helps :) 
7 0
3 years ago
Other questions:
  • What’s the slope of 4x+5y= -20
    8·2 answers
  • Evaluate the expression 10C4
    12·1 answer
  • errence buys a new car for $20,000. The value of the car depreciates by 15% each year. If f(x) represents the value of the car a
    11·1 answer
  • Need help &amp; Thank you !!!!
    13·1 answer
  • 9m + 11 - 8m - 6 + 5
    5·1 answer
  • Either enter an exact answer in terms of pi or use 3.14 for pi and round your final answer to the nearest hundredth.
    10·1 answer
  • Which graph represents the solution to the system of inequalities? x + y &lt; 4 2x + 3y &gt;OR= 12
    8·1 answer
  • the table above shows the values of functions f and h and their derivatives at x=4 and x=8. what is the value of d/dx (f(h(x)))
    14·1 answer
  • How many have sprinkles?
    7·2 answers
  • The ratio of a pair of corresponding sides in two similar triangles is 5:3. The area of the smaller triangle is 108 in2. What is
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!