Tim filled his beach ball with 800 cubic inches of air. It loses 30% of its remaining air every 15 days. Which expression models how much air will be left after 5 months? (Let 15 days = twice a month.)

Answer:

How long does my answer have to be?

Step-by-step explanation:

Answer:

m = 8

Step-by-step explanation:

Expand the left side

Each term in the second factor is multiplied by each term in the first factor

7a²(4a² - 1) + 2a(4a² - 1) - 3(4a² - 1) ← distribute parenthesis

= 28[tex]a^{4}[/tex] - 7a² + 8a³ - 2a - 12a² + 3 ← collect like terms

= 28[tex]a^{4}[/tex] + 8a³ - 19a² - 2a + 3

Comparing the coefficients of like terms with those on the right , then

m = 8

Answer:

it might be 2.6

Step-by-step explanation:

im assuming the 16.3 is the circumfrence, so if you follow the formula for circumfrence (2πr) the radius would be 2.6. hope this is correct

The radius r of the circle is 4.4 yd .

A circular sector, also known as circle sector or disk sector, is the portion of a disk enclosed by two radii and an arc, where the smaller area is known as the minor sector and the larger being the major sector.

For a circle, the arc length formula is θ times the radius of a circle.

 Arc Length = 2 π r (θ/360°)  

where,

r = radius of circle

θ = angle of Sector

According to the question

Arc Length of circle = 16.3 yd

Angle of sector= 240°

By using arc length formula

Arc Length = 2 π r (θ/360°)  

substituting the value

16.3 = 2π r (240°/360°)

16.3 = 2π r * [tex]\frac{2}{3}[/tex]

16.3 * 3 = 4π r

54.9 = 4π r

As π = [tex]\frac{22}{7}[/tex]

54.9 = 4 *  [tex]\frac{22}{7}[/tex] r

54.9 * 7 = 88 r

384.3 = 88 r

r = 4.4 yd

Hence, The radius r of the circle is 4.4 yd .

To know more about  sector of circle and  length of arc here:

https://brainly.com/question/2571307

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Answer:

22% decrease

Step-by-step explanation:

(1100-900)/900 = .22

Answer:

9 is the answer in 50% sure

Answer:

The answer is 89.22

Step-by-step explanation:

Answer:

84 miles

Step-by-step explanation: 140/100 x 60 which gives you 84 miles

Answer:

a = 14.9; b = 11.1

Step-by-step explanation:

SOHCAHTOA:

Sine = Opposite / Hypotenuse

Cosine = Adjacent / Hypotenuse

Tangent = Opposite / Adjacent

[tex]cos48[/tex]° : adjacent is 10, and hypotenuse is a

    [tex]cos48=10/a; a*cos48=10;a=10/cos48[/tex]

    type 10/cos48 into calculator to get a = 14.9

[tex]sin48[/tex]° : opposite is b, and hypotenuse is a

    [tex]sin48=b/a; sin48=b/14.9; b=14.9*sin48[/tex]

    type 14.9*sin48 into calculator to get b = 11.1

Answer:

1/4×322.54

=80.635

round off

it's 80.64

Answer:

6.28

Step-by-step explanation:

½ × 3.47²

Answer:

30.3/option 3

Step-by-step explanation:

Area of paralellogram:

((2+10)/2)*4

12/2*4

6*4

24

Area of semicircle

(pi*r^2)/2

3.1415*2^2/2

3.1415*4/2

6.283

Total:

24+6.283 = 30.283

Round it and it becomes 30.3 so option 3

plz mark brainliest if you find this helpful

Answer:

Half of 4 is 2

2^2 = 4

4 x 3.14 = 12.56, 12.56 divided by 2 = 6.28

10 + 2 = 12

12 x 4 = 48, 48 x 1/2 (basically just dividing by 2) = 24

Add the given areas:

24 + 6.28 = 30.28 m^2

Answer: $1,040

Step-by-step explanation:

52 weeks in a year

52x 10= 520

520x 2(for the years)= 1,040

Answer:

1,040$

Step-by-step explanation:

52 weeks in each year

52 x 2 is 104.

104 x 10 is 1,040.

Answer:

50°  and  130°

Step-by-step explanation:

Linear pair of angles are supplementary, which means their sum is 180

x + 10 + 3x + 10 = 180

4x + 20 = 180

4x = 160

x = 40

x + 10 = 40 + 10 = 50°

3x + 10 = 3(40) + 10 = 120 + 10 = 130°

Answer:

rectangular prism maybe

Step-by-step explanation:

Answer:

X=5

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

15+x=20

or, x=20-15

or, x=5

Answer:

r=4.2

d=9

Step-by-step explanation:

The radius is 4.2cm

The diameter is d=9

Solution

d=2r=2·4.5=9

Hope this helped!!!!!

Answer:-1/p^3

Step-by-step explanation:You do exponents first so -p to the power of -7 is -1/p^7 which then you do -p^4 which is p^4 multiply both you get -1/p^3

Answer:

Step-by-step explanation:

Hope this helps you :)

Answer:

0 and 3??

Step-by-step explanation

Answer:

Yes.

Step-by-step explanation:

The volume of a sphere with radius [tex]r[/tex] is [tex]\frac{4}{3}\pi r^3[/tex]. If the radius is multiplied by a constant [tex]k[/tex], then the new volume is [tex]\frac{4}{3} \pi (kr)^3[/tex], which is equal to [tex]k^3 \cdot \frac{4}{3} \pi r^3[/tex]. This means that the volume of the sphere is multiplied by [tex]k^3[/tex].

a. If the radius is doubled, the volume is multiplied by 8

b. If the radius is tripled, the volume is multiplied by 27

c. if the radius is quadrupled, the volume is multiplied by 64

Answer:

4/3 or 1 1/3

Step-by-step explanation:

cube root of 64 = 4

cube root of 27 is 3

4/3 or 1 1/3

Answer:

NO Results Found

Step-by-step explanation:

mrk me brainliest

Answer:

83 1/4 sq ft

Step-by-step explanation:

let x = length or width of two identical unknown sides

2(9) + 2x = 36 1/2

18 + 2x = 36 1/2

2x = 18 1/2

x = 37/2 ÷ 2 = 37/4 or 9 1/4

therefore, multiply 9 by 9 1/4

Area is:  9/1 x 37/4 = 333/4 = 83 1/4

Answer:

Given:

Area of a triangle = (h*b) / 2

Area of smaller triangle = (4cm * 4cm) / 2 = 16cm² / 2 = 8 cm²

Area of larger triangle = (6cm * 10cm) / 2 = 60cm² / 2 = 30 cm²

30cm² - 8cm² = 22cm²

Probability that the point is inside the large triangle but outside the small triangle:

22cm² / 30cm² → 11/15 → 0.73 or 73%

Answer:

answering so you can give the other person brainiest! :0

Step-by-step explanation:

thanks for the points!

Answer:vgugyu

Step-by-step explanation:

Answer:

use this link

Step-by-step explanation:https://www.calculatorsoup.com/calculators/math/math.php

Answer:

x=176.78

y=262.28

z=176.77