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Scrat [10]
3 years ago
11

A sphere has a diameter of 8 feet.What is its surface area in square inches?Round your answer to the nearest hundredth.Use 3.14

to approximate pi.
Mathematics
1 answer:
Scilla [17]3 years ago
8 0
The surface area of the sphere in square inches is 28,952.92 in^2 rounded to the nearest hundredth.
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Write the quadratic function in vertex form.<br><br> y = x2 - 2x + 5
Jlenok [28]
Vertex form formula: y = a(x-h)^2 +k, with vertex (h,k)
There are multiple ways to find the vertex. One way is to find the roots and then find the x value exactly in between them, because this parabola is symmetrical. 

0 = (x - 3)(x + 2), so x = 3 and -2. The point directly in the middle is x = 1/2 = h 

To find the y value of the vertex, plug in 1/2 to the equation.

(1/2)^2 - 2(1/2) + 5 = 4.25 = k

y = (x - 0.5)^2 + 4.25
4 0
3 years ago
Read 2 more answers
Jan Quint earn 11.00 an hour at her job and is entitled to time and a half for overtime and double time on holidays last week sh
Likurg_2 [28]
Looks like you didn't finish because there is no question.  I'll break that problem down for you and hopefully the missing question will be answered. :) 

$11 x 40h = $440
Overtime pay and holiday pay is time and a half = $11 x 1.5 = $16.50
$16.50 x 9 hours overtime = $148.50
$16.50 x 12 hours holiday = $198.00
Holiday and OT= $346.50
Total of check including regular hours, holiday pay and overtime = $786.50
6 0
3 years ago
I want solution 1 and 2 with the steps to know the final answer
Delicious77 [7]
Question 1:

Slope = 1/5

y = mx + c 
y = 1/5 x + c
at point (5, -1)
-1 = 1/5 (5) + c
- 1= 1 + c
c = - 2

y = 1/5x - 2
5y = x - 10

Question 2:
slope = (9-5)/(3-1)
Slope = 2

y = mx + c
y = 2x + c

at point (1, 5)
5 = 2(1) + c
c = 5 - 2
c = 3

y = 2x + 3


4 0
3 years ago
Graph f(x) = 4[x] + 5
Elena L [17]

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\cocoatextscaling1\cocoaplatform1{\fonttbl\f0\fnil\fcharset0 HelveticaNeue;}

{\colortbl;\red255\green255\blue255;\red60\green64\blue67;}

{\*\expandedcolortbl;;\cssrgb\c23529\c25098\c26275;}

\deftab720

\pard\pardeftab720\partightenfactor0

\f0\fs28 \cf2 \expnd0\expndtw0\kerning0

\outl0\strokewidth0 \strokec2 \

\

\

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}

6 0
3 years ago
Please someone help me
Anika [276]

2x^2 + 14x + 12 = 0

x^2 + 7x + 6 = 0

( x + 1 )( x + 6 ) = 0 ==》 x = - 1 Or x = - 6

6 0
2 years ago
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