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2 years ago

Evaluate x2+9/x2 for each of the given values.

Mathematics

2 answers:

Liono4ka [1.6K]2 years ago

7 0

Answer:

A, 2

B, 10

C, undefined

Step-by-step explanation:

Just did the assignment E2021

Tom [10]2 years ago

4 0

Answer:

ok so we just substate the number in so

6+9/6

6+1 1/3 = 7 1/3

so for part a the answer is 7.33

for part b

2+9/2

3+4 1/2 =7 1/2

so the answer is 7.5

A:7.33

B:7.5

Hope This Helps!!!

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Karo-lina-s [1.5K]

Answer:

a is 60 b is 48

Step-by-step explanation:and i will get the rest to you when i am done

5 0

3 years ago

A ladder is leaning against a wall. The top of the ladder is 9 feet (ft) above the ground. If the bottom of the ladder is moved

Komok [63]

Step 1

First situation

when a ladder is leaning against a wall

Let

x-------> the distance of the bottom of the ladder from the wall

L-------> the length of the ladder

Find the length of the ladder

Applying the Pythagorean Theorem

$L^{2} =x^{2}+ 9^{2}$ ------> equation $1$

Step 2

Second situation

when the ladder will be lying flat on the ground

Find the length of the ladder

In this situation the length of the ladder is equal to

$L=x+3$

square both sides

$L^{2}=(x+3)^{2}$ ------> equation $2$

Step 3

equate equation $1$ and equation $2$

$x^{2}+ 9^{2}=(x+3)^{2}\\x^{2}+81=x^{2} +6x+9\\ 6x=81-9\\6x=72\\x=12\ ft$

therefore

the answer is

the length of the ladder is $12\ ft$

see the attached figure to better understand the problem

5 0

3 years ago

Which could be the side length of a 30°-60°-90° triangle?

pshichka [43]

I believe the answer is C

5 0

3 years ago

Write a formula that will yield the nth term of the sequence: 3,-2,-7,-12

RUDIKE [14]

Answer:

-5n + 8

Step-by-step explanation:

1. What is the difference?

The sequence goes down by 5. This means that the formula will have -5n in it.

2. Work out the term before the first term.

The first term is 3, and we know that the sequence goes up by 5. So, to get the term before 3 we would add 5.

3 + 5 = 8 Remember, this is positive 8. (+8)

3. Put that term at the end of the equation.

We have -5n already and we just worked out the term before the first one which is positive 8 - so put that at the end of the equation.

-5n + 8 This is our answer!

Just to prove it works:

Substitute: n = term

Lets see if we can get the 3rd term which is -7. (n = 3)

-5(3) + 8

-15 + 8 = -7

See, it works!

8 0

3 years ago

What Is 9/10 divided by 2/5 equal

strojnjashka [21]

9/10 divided by 2/5
Convert the divided sign into multiplication while flipping the fraction 2/5 to 5/2
9/10*5/2
Multiply the numerator by the other numerator while multiplying the denominator by the other denominator.
45/20
Simplify
Final Answer: 2 1/4 or 45/20 *They 2 1/4 and 45/20 are the same value. Just written in different ways.

3 0

3 years ago