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3 years ago

Can someone please explain to me step by step how to solve this problem. 4y-(3+y);y=2

Mathematics

2 answers:

k0ka [10]3 years ago

7 0

Answer:

Step-by-step explanation:

Step 1: Since it tells you that y=2, plug it into the equation (meaning replace the y's in the equation with 2)

4y-(3+y)

4(2)-(3+2)

Step 2: Solve.

8 - 5 =

avanturin [10]3 years ago

5 0

Answer:

The answer is 3

Step-by-step explanation:

Plug in 2 for all the y variables and solve:

4(2)-(3+2)=

8-5=3

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Last questions, plz help

Goryan [66]

Answer:

9. $a_n=7+6n$

10. $a_n=a_{n-1}+7$

Step-by-step explanation:

9. Given the sequence

$13, 19, 25, ...$

In this sequence,

$a_1=13\\ \\a_2=19\\ \\a_3=25\\ \\...$

Note that

$a_2-a_1=19-13=6\\ \\a_3-a_2=25-19=6,$

then the common difference in this sequence is $d=6$

You have

$a_1=13\\ \\d=6,$

then the explicit formula is

$a_n=a_1+(n-1)d\\ \\a_n=13+(n-1)\cdot 6\\ \\a_n=13+6n-6\\ \\a_n=7+6n$

10. Given the sequence

$-10,-3, 4, 11, ...$

In this sequence,

$a_1=-10\\ \\a_2=-3\\ \\a_3=4\\ \\a_4=11\\ \\...$

Note that

$a_2-a_1=-10-(-3)=-10+3=-7\\ \\a_3-a_2=-3-4=-7\\ \\a_4-a_3=11-4=7,$

then the common difference in this sequence is $d=7$

You have

$a_1=-10\\ \\d=7,$

then the recursive formula is

$a_n=a_{n-1}+d\\ \\a_n=a_{n-1}+7$

5 0

3 years ago

In a theatre seats are arranged in rows. A teacher took her team of 50 students to the theatre for a field trip.there are 6 rows

lord [1]

48*465=8462*585655*446=745

7 0

3 years ago

HELP ME PLEASE! In triangle FGH, GH=1, FG=12, and GH=sq. root of 145

topjm [15]

Answer:

B&C: tan F=0.0833 & tan H=12.0000

Step-by-step explanation:

The tangent relationship is always opposite/adjacent.

When F is the reference angle, side GH (1) is the opposite side and side FG (12) is the adjacent.

1/12 is 0.0833

When H is the reference angle, FG (12) is the opposite and GH (1) is the adjacent.

12/1 is 12.

3 0

3 years ago

Can anybody help me i don't know how to do

forsale [732]

I think it would be 5/7 because it says that square B is 5/7 of square A.

5 0

3 years ago

Find the volume of a right circular cone that has a height of 9.6 m and a base with a diameter of 2.9 m. Round your answer to th

BigorU [14]

Answer:

21.1m^3

Step-by-step explanation:

8 0

3 years ago