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aksik [14]
3 years ago
14

Simplify the expression: 3(4d + 1) ​

Mathematics
2 answers:
Alexeev081 [22]3 years ago
3 0

Answer:

12d+3

Step-by-step explanation: multiply 3x4d and 3x1 and you get 12d+3

Alex Ar [27]3 years ago
3 0

Answer:

12d + 3

you have to multiply 3 times both of the numbers

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Verifyexperimentally sum of angle of quadrilateral is 360 degree​
salantis [7]

No.of sides=4

sum of angle of quadrilateral

=(n-2)*180°

=(4-2)*180°

=2*180°

=360°

6 0
2 years ago
Can someone please answer. There is one problem. There's a picture. Thank you!
lidiya [134]
The second choice is the correct one.
3 0
3 years ago
Read 2 more answers
Find the distance between these two points (5,9) and (-7,-7)
Viefleur [7K]

Answer:

20

Step-by-step explanation:

Use the distance formula:

d = \sqrt{(x_2 - x_1)^2 + (y_2-y_1)^2}\\d = \sqrt{(-7 - 5)^2 + (-7 - 9)^2}\\d = \sqrt{(-12)^2 + (-16)^2}\\d = \sqrt{144 + 256}\\d = \sqrt{400} = 20

8 0
2 years ago
On a string of red and blue lights, the red lights blink everyb3 seconds, and the blue lights blink every 5 seconds. How many ti
yuradex [85]
When will they blink together?
what is the smallest number they both mutiply to
3*5=15
so every 15 seconds
so at 15, 30, 45, 60 seconds
so 4 times if you count the time exactly at 1 minute
5 0
3 years ago
Can you solve 5a please greatly appreciated.
timurjin [86]
Part I)
 
The module of vector AB is given by:
 lABl = root ((- 3) ^ 2 + (4) ^ 2)
 lABl = root (9 + 16)
 lABl = root (25)
 lABl = 5

 Part (ii)
 The module of the EF vector is given by:
 lEFl = root ((5) ^ 2 + (e) ^ 2)
 We have to:
 lEFl = 3lABl
 Thus:
 root ((5) ^ 2 + (e) ^ 2) = 3 * (5)
 root ((5) ^ 2 + (e) ^ 2) = 15
 Clearing e have:
 (5) ^ 2 + (e) ^ 2 = 15 ^ 2
 (e) ^ 2 = 15 ^ 2 - 5 ^ 2
 e = root (200)
 e = root (2 * 100)
 e = 10 * root (2)
3 0
3 years ago
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