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mario62 [17]
3 years ago
11

Write the product as a trinomial. (3 r - 4)( r + 8)

Mathematics
2 answers:
LenKa [72]3 years ago
5 0

Answer:

3r(to the secondpower) + 20r - 32

Step-by-step explanation:

yaroslaw [1]3 years ago
3 0
3r^2+20r-32
Is your answer
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Carlita planted 4 flowers in 6 minutes. About how many flowers can Carlita plant in 36 minutes?
sattari [20]

Answer:

24

Step-by-step explanation:

\frac{4}{6} =\frac{x}{36}

\frac{4}{6} *\frac{6}{6} =\frac{24}{36}

x = 24

Hope this helps and pls do mark me brainliest if you can:)

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2 years ago
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Completely factor the polynomial. 12x2 + 2x - 4
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A Ferris wheel has a diameter of 140 ft. There are 40 cars for riders, and they are placed at even intervals around the Ferris w
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3 years ago
Usama needs to read 6 novels each month.
Delicious77 [7]

Answer:

78 novels

Step-by-step explanation:

N= novels

M= month

6N = 1M

? = 13M

6N × 13M= 78NM

78NM ÷ 1M

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the number of novels Usama needs to read in 13 months is 78.

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2 years ago
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Trucks in a delivery fleet travel a mean of 120 miles per day with a standard deviation of 18 miles per day. The mileage per day
kvv77 [185]

The probability that a truck drives between 150 and 156 miles in a day is 0.0247. Using the standard normal distribution table, the required probability is calculated.

<h3>How to calculate the probability distribution?</h3>

The formula for calculating the probability distribution for a random variable X, Z-score is calculated. I.e.,

Z = (X - μ)/σ

Where X - random variable; μ - mean; σ - standard deviation;

Then the probability is calculated by P(Z < x), using the values from the distribution table.

<h3>Calculation:</h3>

The given data has the mean μ = 120 and the standard deviation σ = 18

Z- score for X =150:

Z = (150 - 120)/18

   = 1.67

Z - score for X = 156:

Z = (156 - 120)/18

  = 2

So, the probability distribution over these scores is

P(150 < X < 156) = P(1.67 < Z < 2)

⇒ P(Z < 2) - P(Z < 1.67)

From the standard distribution table,

P(Z < 2) = 0.97725 and P(Z < 1.67) = 0.95254

On substituting,

P(150 < X < 156) = 0.97725 - 0.95254 = 0.02471

Rounding off to four decimal places,

P(150 < X < 156) = 0.0247

Thus, the required probability is 0.0247.

Learn more about standard normal distribution here:

brainly.com/question/26822684

#SPJ1

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1 year ago
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