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andriy [413]
2 years ago
15

Can someone pls help

Mathematics
2 answers:
Ilia_Sergeevich [38]2 years ago
7 0
I’m pretty positive it’s C: commutative property
Irina-Kira [14]2 years ago
5 0

Answer:

C

Step-by-step explanation:

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Find the value of 3a^2+2b, If a=3 and b = 4.<br><br>An explanation would be great.
vichka [17]

Answer:

=35

Step-by-step explanation:

3(3) ^2 + 2(4)

= 3(9) + 8

= 35

Where you see a, substitute with 3 and where you see b, substitute with 4

Just follow the steps above.

8 0
2 years ago
Read 2 more answers
A police car's siren operates at a frequency of 2,000 Hz. What frequency would a stationary listener observe if the police car i
SpyIntel [72]

we can use formula

f_L=f_s(\frac{v_a-v_p}{v_a+v_p} )

where

fL is listener frequency

fs is siren frequency

va is the speed of sound in air

vs is police car speed

so, we have

f_s=2000Hz

v_a=345m/s

v_p=65mph

now, we can change it into m/s

v_p=65*\frac{1609}{3600}m/s

v_p=29.05139m/s

now, we can plug it

f_L=2000(\frac{345-29.05139}{345+29.05139} )

f_L=1689.33263Hz..............Answer

3 0
3 years ago
2.58, 2 5/8, 2.6, 2 2/3 least to greatest
8090 [49]

Answer:

2.58, 2.6, 2 5/8, 2 2/3

Step-by-step explanation:

2.58, 2.6, 2 5/8 can be converted into 2.625, and 2 2/3 can be converted into 2.66 with 6 being repeated over & over.

3 0
3 years ago
Identify the 34th term of the arithmetic sequence 2, 7, 12
torisob [31]
The equation is AN=A1+D(N-1) A1 being the first number (2) D being the difference (in this case 5) and N being the nth term to find (34) so here you have AN=2+5(34-1) then AN=2+5(33). the answer here is 167.
5 0
3 years ago
What’s the positive square root of 9
vredina [299]

Answer:

3

Step-by-step explanation:

Three times three equals nine. Or you can just go by one times one, two times two, three times three.

3 0
2 years ago
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