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2 years ago

Please help. For those that help, thank you and have a good day!

Mathematics

1 answer:

Lana71 [14]2 years ago

3 0

Answer:

1) A

2)C

3)B

4)D

Step-by-step explanation:

PLEASE MARK ME AS BRAINLIEST

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Make x the subject PLEASE HELP ILL GIVE BRAINLIEST ASAP

Phoenix [80]

Answer:

$x = \frac{(a+1)f^3}{2e}$

Step-by-step explanation:

$\frac{a + 1}{2x} = \frac{e}{f^3}\\~\\\\a+1 = \frac{2ex}{f^3}\\~\\\frac{a + 1}{2e} = \frac{x}{f^3}\\~\\x = \frac{(a+1)f^3}{2e}$

3 0

2 years ago

The 12th term of the arithmetic sequence is 10.5. The 18th term of this sequence is 13.5. Find the common difference and the fir

xxMikexx [17]

Answer:

common difference is 0.5

first term is 5

Step-by-step explanation:

use the formula for the nth term of an ap Tn=a+(n-1)d

T12=10.5

T18=13.5

therefore come up with two equations

T12=a+(12-1)d

10.5=a+11d(1st equation)

T18=a+(18-1)d

13.5=a+17d(2nd equation)

then solve both as a simultaneous equation

a+11d=10.5

a+17d=13.5

-6d/-6=-3/-6

d=0.5

use one of the equations to find the first term

a+11(0.5)=10.5

a+5.5=10.5

a=10.5-5.5

a=5

I hope this helps

please mark as brainliest

7 0

3 years ago

Help with this!!plz. Asap

gizmo_the_mogwai [7]

Hey there! :D

So, we know that there are 3 z's and 3 6's.

3*z= 3z

6*3= 18

3(z+6) <== equivalent expression

3z+18 <== equivalent expression

z is by itself. It shouldn't combine. It should stay the same. 6 as a unit is separate from z.

Choices "B" and "E" are correct.

I hope this helps!
~kaikers

5 0

3 years ago

Help me with the first one please

natulia [17]

D- 2x-1
plug in a number for x and you'll see

6 0

3 years ago

The difference between the solutions to the equation x squared = a is 30. What is a? Show that your answer is correct.

Trava [24]

You said that 'A is 30' right there in the equation
so it would be
Xsquared=30

5 0

3 years ago