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Sidana [21]
3 years ago
12

Help on this one please number 9

Mathematics
1 answer:
MArishka [77]3 years ago
5 0
Her estimate is More than her actual earnings because since she earns 5.85 on an hourly wage I multiplied that by every hour she worked each day. her estimatewas $120 but her her actual earnings were 109.66.
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(-15)(-4) help meeee
Hunter-Best [27]

The answer is 60 (wow this was a fast answer wish people answered my questions this fast)

3 0
3 years ago
Read 2 more answers
Write the product as a sum: 14cos(39x)sin(19x)
charle [14.2K]

Recall that

sin(<em>a</em> + <em>b</em>) = sin(<em>a</em>) cos(<em>b</em>) + cos(<em>a</em>) sin(<em>b</em>)

sin(<em>a</em> - <em>b</em>) = sin(<em>a</em>) cos(<em>b</em>) - cos(<em>a</em>) sin(<em>b</em>)

Adding these together gives

sin(<em>a</em> + <em>b</em>) + sin(<em>a</em> - <em>b</em>) = 2 sin(<em>a</em>) cos(<em>b</em>)

To get 14 cos(39<em>x</em>) sin(19<em>x</em>) on the right side, multiply both sides by 7 and replace <em>a</em> = 19<em>x</em> and <em>b</em> = 39<em>x</em> :

7 (sin(19<em>x</em> + 39<em>x</em>) + sin(19<em>x</em> - 39<em>x</em>)) = 14 cos(39<em>x</em>) sin(19<em>x</em>)

7 (sin(58<em>x</em>) + sin(-20<em>x</em>)) = 14 cos(39<em>x</em>) sin(19<em>x</em>)

7 (sin(58<em>x</em>) - sin(20<em>x</em>)) = 14 cos(39<em>x</em>) sin(19<em>x</em>)

4 0
3 years ago
A certain recipe asks for 4/9 cup of granola , How much is needed to make 4/9 of a recipe
artcher [175]
4/9 times 4/9 is 16/81.
To make 4/9 of a recipe, 16/81 cups of granola needed.
7 0
3 years ago
Usmg Cire SOIULIONI LU a LILETAI Equatre
natulia [17]

Answer:

5 – 6x = 8x + 17  

⇔ 5 - 17 = 8x + 6x

⇔ -12 = 14x

⇔ x = -6/7

Step-by-step explanation:

7 0
3 years ago
The price of a CD player was reduced from $80 to $52. What was the percent decrease in the price of the CD player? © 28% 0 35% 5
GaryK [48]

Answer:

35%

Step-by-step explanation:

Given data

Initial price= $80

Final price= $52

% decrease= initial-final/initial*100

% decrease= 80-52/80*100

% decrease= 28/80*100

% decrease=0.35*100

= 35%

Hence the decrease is 35%

5 0
3 years ago
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