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2 years ago

Please help me out with this math problem

Mathematics

2 answers:

mestny [16]2 years ago

8 0

Answer:

To know if the equation is true, you need to write it down on a piece of paper and see if you get the results.

Step-by-step explanation:

horrorfan [7]2 years ago

3 0

Because 1+1 = 2 and 3+5 = 8

That would be 2/8

Then you divide 2/8 in half

Half of 2 = 1

Half of 8 = 4

That’s how you get the answer, 1/4

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timofeeve [1]

A=9,805×(1+0.085×7÷12)
A=10,291.16

7 0

3 years ago

Find the axis of symmetry for this parabola: y=-5x^2-10x-13

Dmitry [639]

Answer:

x=1

Step-by-step explanation:

1. Complete the square on the right side of the equation.

5 ( x − 1 )2 − 18

2. Use the vertex form, y = a ( x − h ) 2 + k , to determine the values of a , h , and k . a= 5 h = 1 k = − 18

3. Since the value of a is positive, the parabola opens up.

Opens Up

4. Find the vertex ( h , k ) . ( 1 , − 18 )

5. Find p , the distance from the vertex to the focus.

1 /20

6. Find the focus.

7. ( 1 , − 359/ 20 )

8. Find the axis of symmetry by finding the line that passes through the vertex and the focus.

ANSWER: x = 1

6 0

3 years ago

Use an induction proof to prove this statement: For n≥1, 4^n+5 is divisible by 3.

Tpy6a [65]

Answer:

See below

Step-by-step explanation:

We shall prove that for all $n\in\mathbb{N},3|(4^n+5)$ . This tells us that 3 divides 4^n+5 with a remainder of zero.

If we let $n=1$ , then we have $4^{1}+5=9$ , and evidently, $9|3$ .

Assume that $4^n+5$ is divisible by $3$ for $n=k, k\in\mathbb{N}$ . Then, by this assumption, $3|(4^n+5)\Rightarrow4^k+5=3m,\: m\in\mathbb{Z}$ .

Now, let $n=k+1$ . Then:

$4^{k+1}+5=4^k\cdot4+5\\=4^k(3+1)+5\\=3\cdot4^k+4^k+5\\=3\cdot4^k+3m\\=3(4^k+m)$

Since $3|(4^k+m)$ , we may conclude, by the axiom of induction, that the property holds for all $n\in\mathbb{N}$ .

3 0

2 years ago

Describe a real world situation that can be represented by the product 8(-20)

Semmy [17]

Write a situation that could be modeled with the expression below.

45 divided by 3 minus 2 times 4

8 0

3 years ago

Matthew went to a amusement park during his summer vacation. He went

Bond [772]

Answer:

4 rides

Step-by-step explanation:

36.75-10.5= 26.25 cost of admission

26.25 divded by 5.5= 4.7777777

so 4 rides with left over change

4 0

2 years ago

Read 2 more answers