Id like some help in this, thanks.

Id Like Some Help In This, Thanks.

Answers

Answer 1

Answer:

80 cm²

Step-by-step explanation:

Given 2 similar figures with sides in the ratio a : b , then

ratio of areas = a² : b²

Here ratio of sides = 7 : 14 = 1 : 2

ratio of areas = 1² : 2² = 1 : 4

Thus area of B is 4 times area of A

area of B = 4 × 20 = 80 cm²


Related Questions

A mechanic has two pieces of sandpaper of different sizes. Each piece is in the shape of a circle. The radius of the larger circle is 4 times the radius of the smaller circle. The area of the larger circle is how many times the area of the smaller circle?

Answers

Answer:

16 times

Step-by-step explanation:

difference in area = area of bigger circle / area of smaller circle

Area of a circle = πr²

r = radius

imagine the radius of the smaller circle = 1

Area of circle in terms of π= π

radius of the bigger circle = 4 x 1 = 4

Area of bigger circle in terms of π  = π4² = 16 π

16 π /  π = 16  times

If anybody can help with this

Answers

Answer: third one

Step-by-step explanation:

Answer:

3√2

Step-by-step explanation:

the 2nd answer

y=3√2

How much did it cost trudy to get the loan for $500

Answers

Answer:

850

Step-by-step explanation:

500 times 0.7 plus 500

Three friends but one pack of 80 stickers. They divide it equaly and gave the rest to the teacher. how many stickers will each friend get?

Answers

Answer:

each friend will get 26 stickers

Step-by-step explanation:

Answer:

26

Step-by-step explanation:

10 and 11 please thanks

Answers

Answer:

oh that.is.... um .......ummmmmmmm

I hope this helped and that I was right.
Have a nice day

Alicia deposits $4200 in a savings account and
withdraws $35 each month.

Answers

Answer:

120

Step-by-step explanation:

if you do 4200 x 35 it well be 147000 but if you divide 4200 ÷ 35 it will be 120 and in the question said Each so each mean =× or ÷ in this case it's divide

Answer: 3780

Step-by-step explanatio

35 multiply it with 12 cause there are 12 months in a year then subtractEd it with 4200 and 420 cause that is what I got. Then got 3780!

35 x 12 = 420 then 4200 - 420= 3780

What shape do degree 3 functions have?

Answers

Answer: Third degree polynomials are also known as cubic polynomials. Cubics have these characteristics: One to three roots. Two or zero extrema.

HOPE THIS HELPS

Please brainliest

Let ()
p
(
x
)
be a polynomial of degree 3
3
with real coefficients. Which of the following is possible ?

a) ()
p
(
x
)
has no real roots

b) ()
p
(
x
)
has exactly two real roots

c) (1)=−1,(2)=1,(3)=11,(4)=35
p
(
1
)
=

1
,
p
(
2
)
=
1
,
p
(
3
)
=
11
,
p
(
4
)
=
35

d) −1
i

1
and +1
i
+
1
are roots of ()
p
(
x
)
, where =−1‾‾‾√

How old will Marisa be in 3 years.

Answers

Answer: 10

She cant be the same age as him or older because hes 3/2 older

she will be 10 in 3 years

Amanda earned a score of 940 on a national achievement test that was normally distributed. The mean test score was 850 with a standard deviation of 100
If 1000 students took the test, how many scored below Amanda? Use z table.

Answers

Answer:

lower than Amanda:  816 students

Step-by-step explanation:

An equivalent way in which to state this problem is:  Find the area under the standard normal curve to the left (below) 940.

Most modern calculators have built in distribution functions.

In this case I entered the single command   normalcdf(-1000,940, 850, 100)

and obtained 0.816.

In this particular situation, this means that 0.816(1000 students) scored lower than Amanda:  816 students.

Answer:

Lower than Amanda : 816 students.

help me please!!! i dont get this!!!

Answers

Answer:  25 seconds

=============================================================

Explanation:

The circumference is a special term to mean the perimeter of a circle, or the distance around the circle. Think of a very long rope you can wrap around the circle. Unwinding that rope to make it lay straight can then lead to help measure out the perimeter of the circle when using a straight measuring device (eg: ruler). You can also think of flexible cloth ruler tape that is used to make clothing, and to measure things like height, when thinking about measuring the perimeter of a figure with curves to it.

In this case, the perimeter of the circle is 628 feet. The formula to find the circumference (C) given a radius (r) is shown below

C = 2*pi*r

where pi = 3.14 approximately. We can use a bit of algebra to find the radius r when we are given the circumference C = 628

So,

C = 2*pi*r

628 = 2*3.14*r

628 = 6.28*r

6.28r = 628

r = 628/6.28

r = 100

The radius is 100 feet. Keep in mind that this is an approximate value considering that pi = 3.14 is approximate.

Now we're told that the boat is moving 4 ft per second along the radius. We'll use the distance = rate*time formula to find out how long it will take us to go from the edge fo the center.

distance = rate*time

100 ft = (4 ft per sec)*(x seconds)

100 = 4x

4x = 100

x = 100/4

x = 25

It takes about 25 seconds for the boat to go from the edge to the center of the pond.

Again, this is an approximation due to pi = 3.14 being an approximation.

Answer:

25 seconds

Step-by-step explanation:

the first step is to find the radius of the pond, as that is the distance from the outside of the circle to the center, the same path the boat is taking. the formula for the circumference of a circle is 2pi(r)= circumference, where r represents the radius. to solve for the radius instead of the circumference, we can format the equation as r= circumference/2pi, because to isolate the radius on the left side of the equation you must divide by 2pi on both sides. we know the circumference is equal to 628, so the equation filled out is r= 628/2pi. firstly, 2*pi is 6.28, using 3.14 as pi. 628/6.28 is 100, so the radius is 100 feet.

next, we know the boat is travelling 4 feet per second. since the path it is travelling is 100 feet long, we must divide 100 by 4. 100 ft divided by 4 ft per second leaves us with 25, so it will take the boat 25 seconds to reach the center of the pond.

hope this helps!

I need help asap !!!!

Answers

Answer:

C

Step-by-step explanation:

Pythagorean theorem = a² + b² = c²

Answer:

C.

Step-by-step explanation:

Pythagrean Theorem is on C

Please answer the question correctly

Answers

Answer: The answer is 24

Step-by-step explanation: because it's the same line and it's only telling you half of the line so you just double it

the product of the square of a number and the cube of the same number is equal to 32. find the answer​

Answers

Answer:

x = 2

Step-by-step explanation:

9x^2 * x^3 = 32

x^5 = 32

x^5 = 2^5

x=2

Five angles of a hexagon measures 119, 129,104,139 and 95 degrees. What is the measure of the sixth angle?

Answers

Answer:

x = 134

Step-by-step explanation:

Given that,

Five angles of a hexagon measures 119, 129,104,139 and 95 degrees.

We know that,

The sum of interior angles of a hexagon must equal 720 degrees.

So,

119+129+104+139 +95+x = 720

Where

x is the sixth angle

So,

586+x=720

x = 720-586

x = 134

So, the sixth angle is equal to 134.

Find the volume of the cone. H=9cm r=6cm

Answers

Answer:

the volume of the cone is 339.29

Step-by-step explanation:

Answer:

Volume is 339.29cm

Step-by-step explanation:

7 , 14 , 21 , 28 __ __ __​

Answers

35, 42, and 49 jagskahskahslahslabajak

Answer theses questions and I’ll give you BRIANLIST

Answers

Answer:

3

Step-by-step explanation:

reading it from left to right, the dash on the far left is the minimum value :)

Answer:

3

Step-by-step explanation:

on a box plot, the lowest number the box plot reaches is the minimum.

What is the volume of the cube

Answers

Answer:

5 inches³

Step-by-step explanation:

2½ ÷ 5 = ½ (Length of the equal sized cube)

½×2 = 1 (width)

½ × 4 = 2 (height)

Volume of the right rectangular prism = L × W × H

2½ × 1 × 2 = 5 inches³

6x - 8 ≤ 184
i need answer for test corrections

Answers

I hope this helps.....

Explanation:
I took this in 9th grade so I know how to do this kind of stuff

What is the equation of the line that passes through the point (4,-4) and has a
slope of -5/2

Answers

Answer:

y = -5/2x + 6

Step-by-step explanation:

y = -5/2x + b

-4 = -5/2(4) + b

-4 = -10 + b

6 = b

y = -5/2x + 6

Can someone help? What’s the answer.

Answers

Answer:

The surface area of the red square is 180, and the surface area of the blue square is 328. So the full answer is 508.

Step-by-step explanation:

A = 2( width times length +height times length +height times width ) = 2(6 times 3 + 8 times 3 + 8 times 6)=180

A = 2(width times length + height times length + height times width) = 2(2 times 12 + 10 times 12 + 10 times 2) = 328

And 328 + 180 = 508.

Paula purchase 3 dvd and 7 cds and spent between 90 and 100. Each dvd costs the same amount the price of cd is 10 select all amounts that could be the price of the dvd

Answers

The options aren't given, however, the range of amount spent could be calculated

Answer:

Kindly check explanation

Step-by-step explanation:

Paula purchase 3 dvd and 7 cds and spent between 90 and 100. Each dvd costs the same amount the price of cd is 10 select all amounts that could be the price of the dvd

Given that :

DVD costs the same amount

Number of DVD's = 3

Cost of cds = 10

Number of cds = 7

Total cost of cd's = 10 * 7 = 70

Let the price of DVD = x

Total amount spent = 90 - 100

Lowest price of DVD :

(amount spent - price of cd) / number of dvd

(90 - 70) / 3 = 20 /3 = 6.667

Highest price :

(100 - 70) / 3 = 30 / 3 = 10

Hence the pice of each DVD will range between /

6.6666 and 10.

Hence, prices listed within the range above are possible.

It costs $46 for 8 people to go ice skating how much will it be for 11 people to go show your work please

Answers

Answer:

It will cost 63.25

Step-by-step explanation:

We can use a ratio to solve

46 dollars       x dollars

--------------- = ---------------

8 people         11 people

Using cross products

46 * 11 = 8x

506 = 8x

Divide each side by 8

506/8 =8x/8

63.25 =x

It will cost 63.25

Answer:

$63.25

Step-by-step explanation:

46/8 = $5.75 each

11 x 5.75 = $63.25

a=b=c then find the value of (a+b+c) ^2/a^2+b^2+c^2​

Answers

The Answer Is 3a^2 3b^2 3c^2

Since all the variables equal each other, you may pick one variable to copy in the equation.

[tex] {a}^{2} + a^{2} + {a}^{2} = 3 {a}^{2} [/tex]

And since they're the same numbers, squaring a will have no effect in the equation.

i’m answering this to get more questionsbbbn

hiii please help i’ll give brainliest:)

Answers

Answer:

Geographic features of ancient Greece.

Step-by-step explanation:

Greece has all of those attributes.

SOMEONE PLEASE HELP ME ASAP I NEED HELP AND CAN SOMEONE GIVE ME THE CORRECT ANSWER TOO I NEED HELP !!! :(

Answers

Answer:

the answer is d just check by ordinary way

Answer:

The final answer is 55/8 or the first option.

Step-by-step explanation:

Example equation: a·b/c. To solve this you need to first do a·c and add b to it. For example, you have 5 pizzas and one extra pizza with 2 slices. Each pizza has 8 slices. In all, you have the amount of slices in the 5 whole pizzas + the amount of slices in the partially eaten pizza. Hence, you have (5 whole pizzas · 8 slices in each pizza)+2 slices. This gives you 40+2, or 42 slices in all. The final answer is 42/8.

The same concept applies here. You have 6 whole pizzas with 8 slices in each pizza, + 1 partially eaten pizza that has 7 slices. The expression is (6 whole pizzas · 8 slices in each pizza)+7 slices. This gives you 48+7 or 55 slices in all. The final answer is 55/8 or the first option.

I hope this helped :))

I need help please (25 points)

Answers

I think its a liner

f(-3)=x^2+4

just need help with this

Answers

Step-by-step explanation:

f(-3)=(-3)^2+4

=9+4

=13

hope it helps u dear friend

Answer:

Step-by-step explanation:

Given

f(x) = x² + 4

Now

f(- 3) = (-3)² + 4

       = 9 + 4

       = 13

hope it helps :)

SOMEONE PLEASE HELP ME WITH THIS QUESTION ASAP AND SHOW WORK

Answers

Answer:

m∠XCY = 60°

Step-by-step explanation:

From the figure attached,

Circle has been given with the inscribed angles ∠XWY and ∠XCY formed by the same arc XY.

By the property of the inscribed angles,

"Measure of the inscribed angle formed by the same arc are equal"

m∠XWY ≅ m∠XCY

60x = 61x - 1

61x - 60x = 1

x = 1

Therefore, m∠XCY = 61x - 1

                                = 61(1) - 1

                                = 60°  

PLZZZZZ HELPPP ILL GIVE BRAINLIEST

Answers

Answer:

340

Step-by-step explanation:

Answer:

100-60

Step-by-step explanation:

Used special calculater for this kind of problem.  

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