2 years ago

Helpppppppp me righhhttttt now pleaseeee I’m giving brainlest and points pleaseeeeee hurrryyyyyy

Mathematics

1 answer:

olga55 [171]2 years ago

7 0

What is this? Algebra?

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Brandon says 4 × 800 is greater than 8 × 4,000. Renee says 4 × 800 is less than 8 × 4,000.

deff fn [24]

Answer:

Renee would be correct

Step-by-step explanation:

4 x 800 < 8 x 4000

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2 years ago

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The quadratic model f(x)=-5x^2 +200 represents the approximate height, in meters, of a ball x seconds after being dropped. The b

mel-nik [20]

Answer:

Third option: 5.48

Step-by-step explanation:

Given the quadratic model that represents the approximate height in meters of the ball $f(x)=-5x^2 +200$ . the time in seconds x, when the ball is 50 meters from the ground can be calculated by substituting $f(x)=50$ and solving for x.

Then:

$50=-5x^2 +200$

Subtract 200 from both sides:

$-200+50=-5x^2 +200-200\\-150=-5x^2$

Divide both sides by -5:

$\frac{-150}{-5}=\frac{-5x^2}{-5}\\30=x^2$

Apply square root to both sides:

$\sqrt{30}=\sqrt{x^2}\\\sqrt{30}=x\\5.48=x$

The ball is 50 meters from the ground after about 5.48 seconds.

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3 years ago

Cuanto es 8por8por5por3

icang [17]

Answer:

yes

Step-by-step explanation:

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3 years ago

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Match each variable with what it represents in a sequence formula. 1. r the value of the first term 2. d the value of the nth te

irakobra [83]

Answer:

r is the common ratio (in geometric sequence)

d is the common difference (in arithmetic sequence)

n is the term number

a1 is the value of the first term

an is the value of the nth term

Step-by-step explanation:

arithmetic sequence formula:

an=a1+d(n-1)

geometric sequence formula:

an=a1•(r)^(n-1)

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3 years ago

5. Ms. Brown's flight left at 9:20 A.M. Her plane landed 1 hour and 23 minutes later. What time did her plane land?

Eva8 [605]

Answer:

the plane landed at 10:43 A.M

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