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horrorfan [7]
3 years ago
14

Combining like terms 2a+1+9a+7

Mathematics
2 answers:
fiasKO [112]3 years ago
7 0

Answer:11a+8

Step-by-step explanation:

Masja [62]3 years ago
5 0

Answer:

11a+8

Step-by-step explanation:

Combine like terms, so you add 2a and 9a to get 11a, then add 1 and 7 to get 8

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Is the following relation a function? (1 point)
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Answer: yes

Step-by-step explanation:

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3 years ago
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A wheel turns 1,800 revolutions per minute. How fast does it turn in radians per second?
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1800:60=30 revolutions per second
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3 years ago
If a circle has a radius of 5 meters, what<br> is the diameter?
Rom4ik [11]

Answer:

10m

Step-by-step explanation:

Radius is half the diameter.

So, 5x2 = 10

Answer: 10m

6 0
2 years ago
(1) a) 5270 cl= ? dal
Ivanshal [37]

Answer:

Check below

Step-by-step explanation:

1) These metric volume units can be easily converted by dividing or multiplying by 10 and its multiple. Like this: each step up on the ladder multiply by 10. Each step down divide by 10

a)5270 \:cl=527\:dl\\b)kl=5.3 \times 10=530 hl\\c)58000ml=5.8 dal =(\frac{58000}{10000})\\d)0.39 dal=3.9 l\\e)7.8 dal=780 dl\\f)57.2 ml=5.72 cl.

2) When it comes to area, the "ladder scheme" remains valid but now we'll multiply or divide by

10^3

Bear in mind these useful relations:

1litre =\frac{1}{10^3}m^{3}

1 cm^{3} =1 ml

a) 3.7 l=3700 cm^{3}\\b)29.6 dm^{3}\\29.6 dm^{3} \rightarrow 29.6\times10^{3} cm^3=29.6\times10^{3} ml = 29.6\times10^{2} cl \:or\:2960 cl\\c)8.1l=8100 cm^{3}\\d)5l=\frac{5}{10^{-3}} m^{3}\\e)5.2 cl=52ml=52 cm^{3}=52\times10^{3}=52000 \:mm^{3}\\f)375 ml=375 cm^{3}\\g) 1300 cm^{3}=1300 ml=13 dl\\h) 8.6 ml= 8.6 cm^{3}\times\: 10^{3}=8600 mm^{3}\\i) 51.8\times 10^{11} l \rightarrow 51.8\times 10^{-11}km^{3}

6 0
3 years ago
Explain how to write 28% as a rate per 100
harkovskaia [24]
28% equals 28/100.  So, 28% equals 28 per 100.
8 0
3 years ago
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