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4 years ago

30 points !!!

Mathematics

1 answer:

Assoli18 [71]4 years ago

8 0

We look at the point that has not moved and another point (if neccecary)

the point that has not moved is on the axis of reflection
that pont is D
we see in my diagram that the only axis that that is on is x=0

the answer is B. x=0

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Find the 5th term in the sequence that is defined as follows: Please help!!

dmitriy555 [2]

Answer:

155

Step-by-step explanation:

Using the recursive formula and a₁ = 1, then

a₂ = 3a₁ + 2 = 3(1) + 2 = 3 + 2 = 5

a₃ = 3a₂ + 2 = 3(5) + 2 = 15 + 2 = 17

a₄ = 3a₃ + 2 = 3(17) + 2 = 51 + 2 = 53

a₅ = 3a₄ + 2 = 3(51) + 2 = 153 + 2 = 155

Thus the 5 th term is 155

8 0

3 years ago

The parents of three children, ages 1, 3, and 6, wish to set up a trust fund that will pay X to each child upon attainment of ag

ehidna [41]

Answer:

The equation of Z is: $Z=X(v^{17}+v^{15}+v^{12})+Y(v^{20}+v^{18}+v^{15})$

Step-by-step explanation:

The first child is of age 1 year.

Then the amount invested for the 1-year old is: $Xv^{17}+Yv^{20}$

The second child is of age 3 years.

Then the amount invested for the 3-year old is: $Xv^{15}+Yv^{18}$

The third child is of age 6 years.

Then the amount invested for the 6-year old is: $Xv^{12}+Yv^{15}$

The one-time investment will be:

$Z=Xv^{17}+Yv^{20}+Xv^{15}+Yv^{18}+Xv^{12}+Yv^{15}\\=X(v^{17}+v^{15}+v^{12})+Y(v^{20}+v^{18}+v^{15})$

6 0

3 years ago

Math Exit Slip: Value-Mart is having a back -to - school sale on pencils. A pack of of 20 sells for $7.97, whereas a 12-pack cos

Whitepunk [10]

Answer: The pack of 20.

Step-by-step explanation:

It is because a pack of 20 sells for 2.50 for each pencil, and the pack of 12 sells for 2.51 per pencil, so that means the pack of 20 is cheaper.

4 0

3 years ago

Can someone solve this problem for me? Show me your steps to solve this problem as well.

AveGali [126]

$\bf 3^x=81\qquad 
\begin{cases}
81=3\cdot 3\cdot 3\cdot 3\\
\qquad 3^4
\end{cases}\implies 3^x=3^4\implies x=4$

if their base is the same, the exponents must also be the same for the equation to be true.

5 0

4 years ago

√4 rational or irrational ? 2√5 rational or irrational? -7/8 rational or irrational ?

guapka [62]

√4 rational or irrational ? Rational

2√5 rational or irrational? Irrational

-7/8 rational or irrational ? Rational

5 0

3 years ago

Read 2 more answers