3 years ago

Solve for x when x^2 + 5/x = 8

Mathematics

1 answer:

Nonamiya [84]3 years ago

7 0

My answer is this but I’m not sure

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Fofino [41]

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3 years ago

Find the scale factor that was used

zimovet [89]

Scale factor is 2
30/15 = 2
20/10 = 2

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3 years ago

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If a medium pizza costs $5 and a large pizza is $8, write an equation in standard form that models the possible combinations of

stealth61 [152]

<span>NEVER use a lower case L as a variable
.
$5M+$8L=$45
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Medium only:
$5M+$8(0)=$45
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3 years ago

How many solutions does this linear system have?

Tanya [424]

Answer:

B (2.5, 0)

Step-by-step explanation:

2x - y = 5 (multiply all by 4)

8x- 4y = 20

-8x - 4y = - 20

eliminate the 4y

8x- 4y = 20

-8x - 4y = - 20

-------------------- –

16x = 40

x = 40/16 = 2.5

now we substitute x with 2.5

2x - y = 5

2(2.5) - y = 5

y = 0

8 0

3 years ago

What is the formula for the nth term of the given sequence 100, 20, 4, …

Naily [24]

Answer:

$a_n=100 \left(\dfrac15\right)^{n-1}$

Step-by-step explanation:

General equation of geometric sequence: $a_n=ar^{n-1}$

Given:

a₁ = 100
a₂ = 20
a₃ = 4

$\implies a_1=a=100$

$\implies a_2=100 \cdot r=20$

$\implies a_3=100 \cdot r^2=4$

Common ratio:

$r=\dfrac{a_3}{a_2}=\dfrac{4}{20}=\dfrac15$

Therefore:

$a_n=100 \left(\dfrac15\right)^{n-1}$

6 0

2 years ago