I need help with this question. I want this to be simplifed

Answer: 46.90mins

Step-by-step explanation:

The given data:

The diameter of the balloon = 55 feet

The rate of increase of the radius of the balloon when inflated = 1.5 feet/min.

Solution:

dr/dt = 1.5 feet per minute = 1.5 ft/min

V = 4/3·π·r³

The maximum volume of the balloon

= 4/3 × 3.14 × 55³

= 696556.67 ft³

When the volume 2/3 the maximum volume

= 2/3 × 696556.67 ft³

= 464371.11 ft³

The radius, r₂ at the point is

= 4/3·π·r₂³

= 464371.11 ft³

r₂³ = 464371.11 ft³ × 3/4

= 348278.33 ft³

348278.333333

r₂ = ∛(348278.33 ft³) ≈ 70.36 ft

The time for the radius to increase to the above length = Length/(Rate of increase of length of the radius)

The time for the radius to increase to the

above length

Time taken for the radius to increase the length.

= is 70.369 ft/(1.5 ft/min)

= 46.90 minutes

46.90mins is the time taken to inflate the balloon.

Answer:

Your not dumb you probably just don't learn as fast as other people tell me what u need help on and ill try to explain it to u : )

Step-by-step explanation:

Answer:

8 3/4

Step-by-step explanation:

Please help me BRAINLEST!

Answer:

please mark me as brainlist

The value of the expression b²/c² is 46656.

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example:

1 + 3x + 4y = 7 is an expression.

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

We can use the given equations to express a, b, c, and d in terms of k:

a/b = b/c = c/d = k

From a/d = 1/216,

we have:

a/d = k² / (c/d)

Substituting k = b/c and simplifying:

a/d = (b/c)² / (c/d)

a/d = b² / (c² x d)

Multiplying both sides by c².

(a/d) x c² = b² / d

Substituting k = c/d:

(a/d) x c² = b² / k

Substituting a/b = k and solving for b²/c².

a/b = k

a = k x b

b = a/k

b² = a²/k²

(b²/c²) = (a²/k²) / (a²/k² x (d/c)²)

(b²/c²) = 1 / (d²/k²)

Substituting k = c/d and simplifying:

(b²/c²) = d²

Substituting a/d = 1/216:

(b²/c²) = (216²)

Therefore,

The value of the expression b²/c² is 46656.

Learn more about expressions here:

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The complete question is:

If a/b=b/c=c/d=k plus a/d=1/216 calculate b2/c2

Can you help me with this please, it's urgent?

Answer:

=(x-2)(x-3)

Step-by-step explanation:

This is what I got. I hope this can help you.

Answer:

its b

Step-by-step explanation:

b

Answer:

Yes 4/=8/6 are proportional

If you look at the first fraction 4/3 and multiply 2 by the denomenator and numerator it will equal to 8/6 . Now to switch it up 8/6 divided by 2 is 4/3 so yes the t2 fraction are proportional.

Step-by-step explanation:

Complete question :

Ann, Brian and Carol share the cost of a car. Ann pays 2/5 of the cost, Brian pays 1/3 and Carol pays the rest.

a) What fraction of the cost does Carol pay?

b) Ann pays $1600 more than Brian. Find the total cost of the car.

Answer:

4/ 15

8000

Step-by-step explanation:

A)

Fraction carol paid :

Total fraction = 1/1

Fraction paid by Ann and Brian = (2/5 +1/3)

(2/5 + 1/3) = (6 + 5) / 15 = 11/15

1 - 11/ 15 = 4/ 15

Ann = 2/5 ; Brian pays 1/3

Ann pay 1600 more than Brian

2/5 - 1/3 = (6 - 5) = 1/5

1/5 of amount = 1600

If :

1/5 = 1600

1 = x

1/5x = 1600

x = 1600 ÷1/5

Total amount = 8000

Answer:

x=3

Step-by-step explanation:

The triangle has angles 30,60,90

In this type of right triangle, the ratio of the sides is 1:square root of 3:2

In this type of triangle, the square root of 3 is equal to the 1 in the ratio above because it is across from the angle 30

With this, we multiply the ratio at the top by the square root of 3

since x is across the angle 60, we multiply square root of 3 by the square root of 3 which equals 3.

I hope this makes sense

Answer:39 i dont im 12 ps out

Step-by-step explanation:

Answer:

Its 96 hope it helped :)

Step-by-step explanation:

Answer:

96x

Step-by-step explanation: (2 negatives make a positive)

1. multiply the common factors first

-12x (-8)

(-12)*(-8) = 96

2. now you bring down the X and multiply X to 96

x(96) = 96x

Answer:

9

Step-by-step explanation:

formula for inverse proportion is y = [tex]\frac{k}{x}[/tex]

k is the constant of probability

to find k,

y is 12, x is 6

12 = [tex]\frac{k}{6}[/tex]

so x = 12 × 6

∴ k is 72

so y = [tex]\frac{72}{8}[/tex]

∴ y is 9

Answer:72

Step-by-step explanation:

115+115=230

230-158=72

If you add the 115 a month that she earns from babysitting, then add both the months pay together, than subtract 158(cost of the bicycle) by the total pay, you should get 72$

Answer:  D. $72

Step-by-step explanation:

If she earns $115 a month and June and July is a combination of two months then we will have to find the amount she earn toegther in June and July by multiplying 2 by $115.

2(115) = 230

She earned $230 in those months, and if the bicycle cost $158 , then we will have to subtract $158 from $230 to find her remaining amount.

$230 - $158 = $72  

Answer:

6

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

The answer is B since after cross multiplying 150 against all of the fractions you get 25.

Answer:

25

Step-by-step explanation

1/5 of 150 is 30

1/3 of 150 is 50

1/10 of 150 is 45

add all that together and get 125

150-125=25

Answer:

The slope is 5/3

Step-by-step explanation:

Slope is y/x so its 5/3 becuase you go up 5 and over 3. And it's an incline so the slope is positive.

Brainly deleted my answer the first time lol. Please mark brainliest if correct.

Answer:

Step-by-step explanation:

To factor a polynomial, first identify the greatest common factor of the monomial terms. Then use the Distributive Property to rewrite the polynomial as the product of the GCF and the other parts of the polynomial. (Remember, the distributive property says that a(b + c) = a • b + a • c.)

To factor a polynomial, first identify the greatest common factor of the monomial terms. Then use the Distributive Property to rewrite the polynomial as the product of the GCF and the other parts of the polynomial

A number system is defined as a system of writing to express numbers.

The relationship between using the Distributive Property to simplify an expression and to factor an expression is given here.

The distributive property tells that

a(b-c)=ab-ac and a(b+c)=ab+ac

It means you can separate the common term and represent it as the factor.

Example 12x+4y

The factors of 12 are 4,3

The factor of 4 are 1,2,4

The common factor is 4.

12x+4y=4(3x+y)

We taken out the common factor and has distributive property.

Hence To factor a polynomial, first identify the greatest common factor of the monomial terms. Then use the Distributive Property to rewrite the polynomial as the product of the GCF and the other parts of the polynomial

To learn more on Number system click:

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Answer:

is this a question?

Step-by-step explanation:

Answer:

that is a lot of things to be good at

Step-by-step explanation:

Answer:

fx=2x+2

fx-2x=2

Step-by-step explanation:

x(f-2)=2

x=2/f/2✓marks

Answer:

F ( x ) = x^2 + 2

Domain = R

F ( x - h ) = ( x - h )^2 + 2xh + h^2 + 2

Answer:

Y=2x+3 I think i´m not totally sure

Step-by-step explanation:

Answer:

8. Undefined.

9. -3 (Square root of 3)

10. Undefined.

Step-by-step explanation:

For number 8 and 10, you can't take the square root out of a negative number. It's just not possible :)

Answer:

Number 8 is 8.7

Number 9 is -5.2

Number 10 is 8

Answer:

0.04

Step-by-step explanation:

1680=1500+1500x3xr

1680-1500=1500x3xr

r=180/4500

r=0.04

Answer:

The answer is 4.0 percent

Step-by-step explanation:

I just answered that question and got it right

Answer: 70

Step-by-step explanation:

1. Divide 528 by 264 to get 2

2. Do 2 times 35 to get 70

[tex]\huge\underline{\overline{\mid{\bold{\red{ANSWER}}\mid}}}[/tex]

Cost per metre = Rs. 5

Total cost = Rs. 2000

Then total length of the fence = Rs.2000/Rs.5

= 400 metre

Total length of the fence = 400 metre

Answer:

Step-by-step explanation:I didn't mean to add

Answer:

$27.50 is the amount of money in total she has to pay.

Step-by-step explanation:

$27.50 means the amount of money total she has to pay for admission fee as well as for each nder.

Answer:

KJL and IJL

Step-by-step explanation:

Answer:

Step-by-step explanation:

Triangle A - Equilateral triangle because all the angles are equal which means all the sides will be equal.

Triangle B - Isosceles Triangle because 2 sides are equal (we know this because 2 of the angles are equal)

Triangle C - Equilateral triangle because all the sides are equal.

Triangle D - Scalene triangle because all the sides have different lengths.

Answer:

-1

Step-by-step explanation:

Derivative of cos(x)=-sin(x)

Derivative of e^x=e^x

Derivative of cos(x)-e^x= - sin(x)-e^x

plug in 0 to the spots of x and you will get 1 because sin(0) is 0 e^0 is 1

0-1=-1