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solmaris [256]
4 years ago
7

Factorize completey21a²+28ab​

Mathematics
1 answer:
Luba_88 [7]4 years ago
7 0

Answer:

7a(3a+4b]

Step-by-step explanation:

take 7a as common

7a[3a+4b]

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Savatey [412]

Answer:

$18.75

Step-by-step explanation:

75 divided among the 4 sisters equally

8 0
3 years ago
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Arrange the pairs of points in increasing order of the slopes of the lines joining them. (15, 30) and (20, 40)
gavmur [86]

Answer: m1 = 0.5

M2= 0.375

M3 = 2.25

M4 = 3.0

M5 = 13.5

M6 = 0.285

M7 = 7.0

Step-by-step explanation:

(20,40)-(15,30)=(5,10), m1=5/10=0.5

(18,48)-(12,32)=(6,16), m2=3/8=0.375

(72,32)-(27,12)=(45,20), m3=9/4=2.25

(60,20)-(45,15)=(15,5), m4=3.0

(243,18)-(27,2)=(216,16), m5=27/2=13.5

(24,84)-(18,63)=(6,21), m6=2/7=0.285...

(84,12)-(63,9)=(21,3), m7=7.0

4 0
3 years ago
Please help me with this! I will mark you as brainliest!
erastovalidia [21]

Step-by-step explanation:

\frac{ {5}^{3} }{ {5}^{7} }

\frac{1}{ {5}^{7 - 3} }

\frac{1}{ {5}^{4} }

or

{5}^{ - 4}

Hope it will help :)

4 0
4 years ago
Without measuring angles what is the measure of angle A′ OB ′?
Ede4ka [16]

Answer:

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Step-by-step explanation:

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3 years ago
Which function has a vertex at the orgin
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Explain a little more
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