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3 years ago

Please help me with this

Mathematics

2 answers:

Bingel [31]3 years ago

6 0

Answer:

Step-by-step explanation:

qwelly [4]3 years ago

4 0

Answer:

Step-by-step explanation:

102.20 is the answer.

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What is the probability that a respondent chosen at random is a male or a female?

miv72 [106K]

Answer:

%50

Step-by-step explanation:

%50 male - %50 female

4 0

3 years ago

Which equation is represented by the graph below?

Natasha2012 [34]

Answer:

C. y=e^{x}-3

Step-by-step explanation:

keywords : positive or exponential graph.

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2 years ago

consider a polynomial f(x)=ax^3 + bx^2 + x + 2/3.if x + 3 is a factor of f(x) and f(x) is divided by x + 2, then we get remainde

Elanso [62]

Answer:

a = 2/27

b = 13/27

Step-by-step explanation:

The given polynomial is presented as follows;

f(x) = a·x³ + b·x² + x + 2/3

Given that x + 3 is a factor, we have;

f(-3) = 0 = a·(-3)³ + b·(-3)² - 3 +2/3 = 0

-27·a + 9·b - 3 + 2/3 = 0

-27·a + 9·b = 7/3........(1)

Also we have

(a·x³ + b·x² + x + 2/3) ÷ (x + 2) the remainder = 5

Therefore;

a·(-2)³ + b·(-2)² + (-2) + 2/3 = 5

-8·a + 4·b - 2 + 2/3 = 5

-8·a + 4·b = 2 - 2/3 = 4/3........(2)

Multiplying equation (1) by 4/9 and subtracting it from equation (2), we have;

-8·a + 4·b - 4/9×(-27·a + 9·b) = 4/3 - 4/9 × 7/3

-8·a + 12·a = 8/27

4·a = 8/27

a = 2/27 ≈ 0.0741

imputing the a value in equation (1) gives;

-27×2/27 + 9·b = 7/3

-2 + 9·b = 7/3

9·b = 7/3 + 2 = 13/3

b = 13/27 ≈ 0.481.

6 0

3 years ago

Your cell phone plan cost $39.99 per month plus $.13 for each text message you send or receive. You have at most $45 to spend on

Dafna11 [192]

Answer:

At most 38 text messages.

Step-by-step explanation:

Let x represent number of text message you send or receive.

We have been given that the cell phone plan charges $.13 for each text message you send or receive. So amount charged for sending or receiving x text messages would be $0.13x$ .

We are also told that your cell phone plan cost $39.99 per month, so total cost of monthly bill would be $0.13x+39.99$ .

Since you can spend at most $45, so total cost of x messages should be less than or equal to 45 as:

$0.13x+39.99\leq 45$

$0.13x+39.99-39.99\leq 45-39.99$

$0.13x\leq 5.01$

$\frac{0.13x}{0.13}\leq \frac{5.01}{0.13}$

$x\leq 38.5384615$

Therefore, you can send or receive at most 38 text messages.

8 0

3 years ago

Which of the following statement is true?

Tatiana [17]

3/12 is the same as 3/12

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3 years ago