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notka56 [123]
3 years ago
15

A spherical boulder is 20 feet in diameter and weight almost 8 tons.Find its volume.Use 3.14 for T round to the nearest whole nu

mber.
Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
3 0

Answer:

4187 ft³

Step-by-step explanation:

\frac{4}{3}πr³

π = 3.14

r = radius

the diameter is the straight line that passes through the centre of a circle and touches the two edges of the circle.

A radius is half of the diameter

diameter = 2r

Radius = 20 / 2 = 10 feet

(4/3) x 3.14 x 10³ = 4187 ft³

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10(g+5) = 2(g +9) <br>solve for g​
Burka [1]

Answer:

g= -4

Step-by-step explanation:

1. Remove the parentheses by multiplying 5 by 10 and 9 by 2 so that would be 10g + 50= 2g + 18

2. Move the terms by their correct side. Constants to the right and variables to the left so that would be 10g - 2g = 18 - 50

3. Now do 10 - 2 and 18 - 50 so the results will be 8g = -32

4. Divide both sides of the equation by 8 so 32÷8.

5. The result is g= -4

5 0
3 years ago
Read 2 more answers
At the beginning of spring, Eva planted a small sunflower in her backyard. When it was first planted, the sunflower was 15 inche
sergejj [24]

The height of the sunflower after 8 weeks will be 23 inch and after w weeks it will be (15+w) inches tall .

In the question ,

it is given that

when the sunflower was planted

the height was 15 inches .

and the flower grows by 1 inch every week ,

So , in 8 weeks the flower will grow = 8*1 = 8 inches

and in w weeks the flower will grow = w inches

So, the height of the flower plant after 8 week = 15 + 8 = 23 inches

and the height of the flower plant after w weeks is = (15+w) inches

Therefore, The height of the sunflower after 8 weeks will be 23 inch and after w weeks it will be (15+w) inches tall .

The given question is incomplete , the complete question is

At the beginning of spring, Eva planted a small sunflower in her backyard. When it was first planted, the sunflower was 15 inches tall. The sunflower then began to grow at a rate of 1 inch per week. How tall would the sunflower be after 8 weeks? How tall would the sunflower be after w weeks?

Learn more about Algebra here

brainly.com/question/25857358

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4 0
2 years ago
Select "Yes" or "No" to indicate whether the ordered pair is on the graph of the function f(x)=−16x+1 .
Alexxx [7]

To determine if the given points are on the graph of the function, substitute the x- coordinate into the equation and if the value is equal to the y-coordinate then it is on the graph

(0, - 16 ) : f(0) = 0 + 1 = 1 ≠ - 16 → No

(- 1, - 1) : f(-1) = 16 + 1 = 17 ≠ - 1 → No

(1, 256 ) : f(1) = - 16 + 1 = - 15 ≠ 256 → No


8 0
3 years ago
Read 2 more answers
Aiden typed h words in three hours. which algebraic expression represents how many words per minute Aiden typed?
aleksandr82 [10.1K]
H words *    1 hour      =   h words
3 hours    60 minutes     180 minutes
or h/180 words per minute
3 0
4 years ago
Read 2 more answers
D = 6 when v = 20 Work out an equation connecting d and v work out the value of d when v =30
Grace [21]

The value of d is 27/2 when v =30

<h3>What is equation?</h3>

Equation is the defined as mathematical statements that have a minimum of two terms containing variables or numbers is equal

Suppose that d is directly proportional to the square of v.

So the equation is, d ∝ v² equals to d = kv², where<em> k</em> is a constant.

So in order to find the value of <em>k</em>,

d = <em>k</em> v²

d = 6, v = 20,

Substitue the value of d and v into the equation :

6 = <em>k</em>(20)²

k = 6/400

k = 3/200

Substitue the value of <em>k</em> and v =30 into the equation,

d = 3/200(30)²

d = 2700/200

d = 27/2

Hence, the value of d is 27/2 when v =30

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4 0
2 years ago
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