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Sholpan [36]
2 years ago
11

An internet site sells 75 feature type cell phones. The ratio of the number of smartphones to the number of feature phones is 3:

5. How many cell phones are smart phones?
Mathematics
1 answer:
Alex777 [14]2 years ago
4 0
There are 45 smart phones
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39 times 49 times 81
d1i1m1o1n [39]

Answer:

154,791

Step-by-step explanation:

7 0
3 years ago
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In 4th grade :) help plss
Soloha48 [4]

Answer:

1. 570

2. 5,700

3. 57,000

Step-by-step explanation:

Hope it helped

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2 years ago
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Problem #2 A, B,C,D,E
PilotLPTM [1.2K]

2x+4

2(x+4)

(x/5)+6

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3 years ago
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The graph above is a transformation of the function x2 Write an equation for the function graphed above
lutik1710 [3]

Answer: y=0,5x²-x-1,5.

Step-by-step explanation:

(-1;0)\ \ \ \ (3;0)\ \ \ \ (1;-2)   \ \ \ \  y=ax^2+bx+c\ ?\\\left\{\begin{array}{ccc}a*(-1)^2+b*(-1)+c=0\\a*3^2+b*3+c=0\\a*1^2+b*1+c=-2\end{array}\right \ \ \ \  \ \left\{\begin{array}{ccc}a-b+c=0\ \ (1)\\9a+3b+c=0\ (2)\\a+b+c=-2\ (3)\end{array}\right  \\

We summarize (1) and (3):

2a+2c=-2\ |:2\\a+c=-1\ \ \ \ \Rightarrow\\a+b+c=-2\\(a+s)+b=-2\\-1+b=-2\\b=-1.

Substitute b=-1 into (2):

9a+3*(-1)+c=0\\9a-3+c=0\\9a+c=3\ \ (5).\\

From (5) subtract (4):

8a=4\ |:8\\a=0,5.\ \ \ \  \Rightarrow\\

Substitute a=0,5 into (4):

0,5+c=-1\\c=-1,5.

Hense:

y=0,5x²-x-1,5.

5 0
1 year ago
I need help I gotta find x.
forsale [732]

Answer:

Enjoy:)

Step-by-step explanation:

5 0
2 years ago
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