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Paha777 [63]
3 years ago
11

What is the volume of a hemisphere with a radius of 4.9 ft, rounded to the nearest

Mathematics
2 answers:
galben [10]3 years ago
8 0

Answer:

246.4 ft

Step-by-step explanation:

I did this in delta math, got it wrong, and it said this was the correct answer

Alexxx [7]3 years ago
3 0

Answer:

Step-by-step explanation:

To round 4.9 to nearest tenth means to round the numbers so you only have one digit in the fractional part. 4.9 already has only one digit in the fractional part. Thus, 4.9 is already rounded as much as possible to the nearest tenth and the answer is: 4.9

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Please help.............
gayaneshka [121]

Answer:

A. -4

Step-by-step explanation:

J= Jake's Number

A= Amy's Number

2j = 3j+2

-j = 2

j = -2

check: 2(-2) = 3(-2)+2

-4 = -6+2

-4 = -4 (correct)

Jake's number is -2. Amy's is -4


4 0
3 years ago
How do I solve this problem?
Gre4nikov [31]
(6b + 42)(b - 3)
To check the answer, use the method FOIL.

3 0
3 years ago
Which number is not equal to one of the following expressions? 1,400 x 10
pochemuha
The answer is 140

Explanation:
1,400 x 10= 14,000
140,000\100=1,400
1,400 x 100= 140,000
8 0
2 years ago
Use the drawing tool(s) to form the correct answers on the provided graph. In the given equation, y is a function of x. Graph th
Roman55 [17]

Answer:

Here is the graph of y is a function of x.

4 0
2 years ago
for what value of k, the line joining 3x-ky+7=0 is perpendicular to the line joining (4 ,3) and ( 5, -3).
Schach [20]

Answer:

  • k = 18

=========

<h2>Given</h2>

<h3>Line 1</h3>
  • 3x - ky + 7 = 0

<h3>Line 2</h3>
  • Passing through the points (4, 3) and (5, - 3)

<h2>To find</h2>

  • The value of k, if the lines are perpendicular

<h2>Solution</h2>

We know the perpendicular lines have opposite reciprocal slopes, that is the product of their slopes is - 1.

Find the slope of line 1 by converting the equation into slope-intercept from standard form:

<u><em>Info:</em></u>

  • <em>standard form is ⇒ ax + by + c = 0, </em>
  • <em>slope - intercept form is ⇒ y = mx + b, where m is the slope</em>

  • 3x - ky + 7 = 0
  • ky = 3x + 7
  • y = (3/k)x + 7/k

Its slope is 3/k.

Find the slope of line 2, using the slope formula:

  • m = (y₂ - y₁)/(x₂ - x₁) = (-3 - 3)/(5 - 4) = - 6/1 = - 6

We have both the slopes now. Find their product:

  • (3/k)*(- 6) = - 1
  • - 18/k = - 1
  • k = 18

So when k is 18, the lines are perpendicular.

4 0
2 years ago
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