3 years ago

Find the value of x. Show your work.

Mathematics

1 answer:

vitfil [10]3 years ago

4 0

Answer:

Step-by-step explanation:

2+2 =4

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Use your calculator to work out this equation

alisha [4.7K]

Answer:

2.123842852 is the first answer

for part b it'll be 2.12

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Step-by-step explanation:

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3 years ago

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Divide the following problem: 4/5 ÷ 37 Please give me a answer that helps.

Triss [41]

Answer:

4/185 or 0.0216...

Step-by-step explanation:

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3 years ago

Suppose an=3an-1 -5an-2 -4an-3. and a4= -7, a5=-36, a6=-85 , find a1 , a2, a3

maria [59]

Answer:

$a_1=4\\\\a_2=0\\\\a_3=3$

Explanation:

The equation is:

$a_n=3a_{n-1}-5a_{n-2}-4a_{n-3}$

and

$a_4=-7, a_5=-36, a_6=-85$

1. Subsittute n = 6 into the equation:

$a_6=3a_{5}-5a_{4}-4a_{3}$

Now subsititute the known values:

$-85=3(-36)-5(-7)-4a_{3}$

You can solve for $a_3$

$-85=-108+35-4a_{3}\\\\4a_3=12\\\\a_3=12/4\\\\a_3=3$

2. Substitute n = 5 into the equation:

$a_5=3a_{4}-5a_{3}-4a_{2}$

Substitute the known values and solve for $a_2$

$-36=3(-7)-5(3)-4a_{2}\\\\4a_2=-21-15+36=0\\\\a_2=0$

3. Substitute n = 4 into the equation, subsitute the known values and solve for $a_1$

$a_4=3a_{3}-5a_{2}-4a_{1}$

$-7=3(3)-5(0)-4a_{1}\\\\4a_1=9+7=16\\\\a_1=4$

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3 years ago

Write y=-3x^2-18x-31 in vertex form

Ahat [919]

-3(x+(3))^2-4 is the answer

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Dylan is six years older than his sister. If his sister's age is represented by the variable s, which of the following expressio

ANTONII [103]

S + 6

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3 years ago

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Find the value of x. Show your work.​

Find the value of x. Show your work.