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Savatey [412]
3 years ago
14

Helpp fast will name brainliest5. A worker drives 2 hours each day to work. Write an algebraic expression to represent the numbe

r of hours driven for any given value for d, which represents the number of days worked.
a. d÷2
b. d-2
c. d+2
d. 2d
Elliot has twice as many trading cards as Sam. Elliot has 20 trading cards. Write an equation and use it to determine the number trading cards Sam has.
a. s+2=20; 18
b. s/2=20; 40
c. 2s=20; 10
d. s-2=20; 22
Mathematics
2 answers:
Alchen [17]3 years ago
8 0
The first question is d 

i think the second one is c
Dvinal [7]3 years ago
7 0
It is 
d
and
c
.................................................
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If (8^2)p = 8^4, what is the value of p?<br><br> 2<br> 3<br> 4<br> 6
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Step-by-step explanation:

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64p=4096

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Solve the equation 2cosA = 3tanA
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\bf \\\\\\&#10;0=[2sin(A)-1][sin(A)+2]\implies &#10;\begin{cases}&#10;0=2sin(A)-1\\&#10;1=2sin(A)\\&#10;\frac{1}{2}=sin(A)\\\\&#10;sin^{-1}\left( \frac{1}{2} \right)=\measuredangle A\\\\&#10;\frac{\pi }{6},\frac{5\pi }{6}\\&#10;----------\\&#10;0=sin(A)+2\\&#10;-2=sin(A)&#10;\end{cases}

now, as far as the second case....well, sine of anything is within the range of -1 or 1, so -1 < sin(A) < 1

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8 0
2 years ago
60 POINTS BRAINLIES
MaRussiya [10]

Answer:

see below

Step-by-step explanation:

a)  median : re-arranged the numbers in order. i.e. min to max

gold:          147 , 147 , 175 , 206 , 212 , 227 , 263 , 275 , 440 , 1022

                 <u>212  + 227</u><u>  </u>  =  219.50

                        2

silver:       147 , 163 , 165 , 170 , 178 , 241 , 295 , 313 , 357 , 794

                <u>178 + 241  </u>   =  209.50

                       2

bronze:    151 , 169 , 179 , 187 , 193 , 260 , 289 , 325 , 349 , 704

                <u>193  +  260  </u>=  226.50

                        2

b)  mean : sum of all numbers divide by n, where n=10  

gold:        =   (147 , 147 , 175 , 206 , 212 , 227 , 263 , 275 , 440 , 1022 ) / 10

               =  311.40

silver:      =   (147 , 163 , 165 , 170 , 178 , 241 , 295 , 313 , 357 , 794 ) / 10

              =  282.30

bronze:   =  (151 , 169 , 179 , 187 , 193 , 260 , 289 , 325 , 349 , 704 ) / 10

               =  280.60

c) standard deviation on population (STDEV.P)

Australia          = 16.44

china               = 33.03

france              = 19.74

germany          = 30.21

great britain    = 13.89

hungary           = 12.04

italy                  = 11.44

soviet union    = 48.46

sweden           = 13.47

united states   = 133.84

6 0
3 years ago
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