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Dominik [7]
3 years ago
15

Please help me with these questions and show how u got them, i will mark you brainliest !

Mathematics
1 answer:
lianna [129]3 years ago
4 0

Answer: 1) 25b   2) ac   3)ba

1) Since b is unknown, your answer will be 25b

2) Since both variables, a and c, are unknown, your answer will be ac

3) Since both are unknown here, it will be ba!

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Original price of a soda: $800 tax 7% selling price: $
Kobotan [32]

Answer:

$856

Step-by-step explanation:

Find 7% of $800 and then add it to $800

3 0
3 years ago
A bale of fabric is 189 metres long. If lengths of 15 metres, 36 metres and 29 metres are cut off, how much fabric is left?.
Xelga [282]

Answer:

109 metres

Step-by-step explanation:

1. Do 15+36+29 which equals 80

2. Do 189-80 and u get 109

Hope this helps :3

5 0
3 years ago
A. Graph the function ????(x) = 3 cos(2x) + 1 between 0 and 2????.
almond37 [142]

Answer:the awnser is A i beleive not 100% sure

Step-by-step explanation:

3 0
4 years ago
A car advertisement claims that a certain car can accelerate from rest to 70 km/hr in 7 seconds find the car acceleration
iVinArrow [24]

Answer:

acceleration \approx 2.78\,\,\frac{m}{s^2}

Step-by-step explanation:

The acceleration is the change in velocity per unit of time.

Therefore to have this rate in appropriate units that can combine, we re-write the change from 0 to 70 km/h in meters per second using:

70 \frac{km}{h} = \frac{70000}{3600} \frac{m}{s}

so in this case the acceleration becomes:

accel=\frac{change\,\,vel}{change\,\,time} =\frac{70000m}{3600\,*7\,s^2} \approx 2.78\,\,\frac{m}{s^2}

7 0
3 years ago
(0.4+ 1.6) x 6 what is it please help​
Katarina [22]

Answer:

12

Step-by-step explanation:

(0.4+ 1.6) x 6 = 2 x 6 = 12

4 0
3 years ago
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