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3 years ago

Which is the polynomial function of lowest degree with leading coefficient of 4 and roots 7 and 3?

Mathematics

1 answer:

NISA [10]3 years ago

3 0

Answer:

f(x) = 4x² - 40x + 84

Step-by-step explanation:

4(x - 7)(x - 3) = 0

4(x² - 3x - 7x + 21) = 0

4(x² - 10x + 21) = 0

4x² - 40x + 84 = 0

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A ladder 13 feet long is leaning against a house. The base of the ladder is pulled away from the wall at a rate of 2 feet per s

Kamila [148]

I believe the answer is 10 feet per second?

4 0

3 years ago

Every quadrilateral is a rhombus true or false

Bas_tet [7]

Answer:

false

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Based on a poll, among adults who regret getting tattoos, 12% say that they were too young when they got their tattoos. Assum

Tema [17]

Answer:

a. 0.6588

b. 0.3978

c. 0. 279

Step-by-step explanation:

In the given question the success and failure are given the number of outcomes is fixed so binomial distribution can be applied.

Here success= p = 12 % or 12/100 = 0.12

failure = q= 1-p = 1-0.12 = 0.88

n= 10

Using binomial probability distribution

a. Probability that the number of selected adults saying they were too young is 0 or 1 is calculated as:

P (x=0,1) = 0.12 ⁰(0.88)¹⁰10 C0 + 0.12 (0.88)⁹ 10 C1= 1* 0.279 * 1 + 0.12 ( 0.3165) 10 = 0. 279 + 0.3978= 0.6588

b. Probability that exactly one of the selected adults says that he or she was too young to get tattoos is calculated as

P (x=1) = 0.12 (0.88)⁹ 10 C1= 0.12 ( 0.3165) 10 = 0.3978

c. Probability that none of the selected adults say that they were too young to get tattoos is

P (x=0) = 0.12 ⁰(0.88)¹⁰10 C0 = 1* 0.279 * 1 = 0. 279

4 0

3 years ago

Hay 150 numeros en una rifa ¿ cuantos habria que comprar para tener un 8% de probalidad pra ganarla

krok68 [10]

Answer:

12 numeros

Step-by-step explanation:

para que pueda obtener el 8% de probabilidad, tendrá que comprar el 8% de los números

8% x 150

8 x 150

100

=12 numeros

espero eso ayude

3 0

3 years ago

Amanda uses 1/3 of a cup of milk each time she makes a batch of pancakes. How manybbatches can she make if she only has 11/22 of

kow [346]

Answer:

Amanda can make 1.5 or 3/2 of batches of pancakes with 11/22 of a cup of milk.

Step-by-step explanation:

1. Let's review the information given to us for answering the question correctly:

Amount of milk Amanda use for a batch of pancakes = 1/3 cup

2. How many batches can she make if she only has 11/22 of a cup of milk left?

Let's simplify 11/22, dividing by 11 the numerator and the denominator,

11/22 = 1/2

Now, using the Rule of Three Simple, we can calculate the answer to this question, this way:

Number of batches = (1/2 * 1)/1/3

Number of batches = 1/2 / 1/3

Number of batches = 1/2 * 3/1 (Taking the reciprocal)

Number of batches = 3/2 = 1.5

Amanda can make 1.5 or 3/2 of batches of pancakes with 11/22 of a cup of milk.

4 0

3 years ago