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
Bond [772]
3 years ago
7

there are two concentric circles on the playground. The diameter of the larger circle is 40% greater than the diameter of the sm

aller circle. The area of the larger circle is what percent greater than the area of the smaller circle
Mathematics
1 answer:
enot [183]3 years ago
3 0
Let
D1-------------------- ><span>diameter of the larger circle 
</span>D2-------------------- >diameter of the smaller circle
D1=D2*1.4----------- > D2=D1/1.4

A1--------------- > Area of the larger circle 
A2--------------- > Area of the smaller circle 
A1=pi*D1²/4
A2=pi*D2²/4----------- > pi*D1²/(1.4² *4)-------- >A1/1.4²------ > A1*(0.51)
A2=0.51A1---------- > A1=A2/0.51=1.96 A2
A1=1.96A2

The answer is 
the area <span>of the larger circle is 96%  greater than the area of the smaller circle</span>

You might be interested in
Tangent wz and secant WV intersect at point W. Find the length of YV If necessary, round to the hundredths place.
Mila [183]

Answer:

Option B. YV=5\ units

Step-by-step explanation:

we know that

The <u>Intersecting Secant-Tangent Theorem,</u> states that If a tangent segment and a secant segment are drawn to a circle from an exterior point, then the square of the measure of the tangent segment is equal to the product of the measures of the secant segment and its external secant segment

so

In this problem

WZ^{2}=WV*WY

substitute and solve for WV

6^{2}=WV*4

WV=36/4=9\ units

we have that

WV=WY+YV

substitute

9=4+YV

YV=9-4=5\ units

5 0
4 years ago
What is the area of this figure? Enter your answer in the box
DIA [1.3K]

The answer should be 51

4 0
3 years ago
Read 2 more answers
Simplify the product. <br> 5b(6b-10)<br> A.11b-10<br> B.5b^2+6b-10<br> C.-b - 10<br> D.60b^2-50b
Alina [70]
Your answer is D for your purposes

Work:
Multiply b and 5
Multiply b and 1
The b just gets copied along.

5*b evaluates to 5b

Multiply b and 6
Multiply b and 1

6*b evaluates to 6b
6*b-10 evaluates to 6b-10
Multiply 5b by 6b-10
Multiply 5b by each term in 6b-10 term by term.

This is the distributive property of multiplication.

Multiply 5b and 6b
Multiply the b and b
Multiply b and b

Combine the b and b by adding the exponents, and keeping the b, to get b²

5b × 6b =

Multiply 5b and -10
Multiply b and 1

5b × -10 = -50b

5*b*(6*b-10)

***The final answer is 30b²-50b***
3 0
3 years ago
Read 2 more answers
Transform the equation to isolate x:ax=bx + 1 how is the value of x related to the difference of a and b
Airida [17]

Answer:

x = \frac{1}{a-b}

Step-by-step explanation:

Given

ax = bx + 1

Collect the terms in x on the left side by subtracting bx from both sides

ax - bx = 1 ← factor out x from each term on the left side

x(a - b) = 1 ← divide both sides by (a - b)

x = \frac{1}{a-b}

4 0
3 years ago
Read 2 more answers
Please explain asap, will give brainliest!!
Mazyrski [523]
Hello!

You have to first find the median

74, 74, 83, 83, 83, 86, 87, 90, 92, 93, 93, 94

The numbers in the middle are 86 and 87

The average of these numbers are 86.5

The median is 86.5

This is shown in the box plot so the median is right

The lower quartile is the median of the numbers less than 86.5

74, 74, 83, 83, 83, 86

The median of these numbers is 83

The lower quartile is right

The find the upper quartile you find the average of the numbers higher than 86.5

87, 90, 92, 93, 93, 94

The upper quartile is 92.5

Since this is shown differently in the box plot the answer is upper quartile

The answer is C) upper quartile

Hope this helps!
8 0
3 years ago
Other questions:
  • HELP. TODD.
    6·1 answer
  • Dan solves 6p=5-3p in the way shown below. Which properties did Dan use for Step 1 and Step 2?
    13·2 answers
  • Vincent is watching a movie that lasts 1 hour and 37 minutes. he has watched 52 minutes so far. how many minutes are left in the
    13·1 answer
  • A florist is arranging flowers in vases. There are 4 red flowers and 5 white flowers in every vase. The florist wants to make on
    6·1 answer
  • Solve for n. 1/ n-4 - 2/n = 3/ 4 - n
    12·1 answer
  • Which shape has two sets of parallel sides only?
    9·1 answer
  • 20 points! The four tables represent functions.<br> Which table represents a non-linear function?
    11·1 answer
  • In a right triangle, if cos x = 1/2, then what is tan x?
    12·1 answer
  • The equation c=45 + 0.04m represents the total charges for renting a car driving m miles which table contains values that repres
    15·2 answers
  • For the function f(x)=3x²-7, find the value of f(x) when x=3.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!