1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aev [14]
3 years ago
5

Help please! I’ll give brainliest too!

Mathematics
1 answer:
DIA [1.3K]3 years ago
7 0

Answer:

y-intercept: -5

Slope: 4

Equation: y = 4x - 5

Step-by-step explanation:

✔️The y-intercept is the value of y when x = 0. From the table of values, it shows that when x = 0, y = -5. Therefore:

y-intercept (b) = -5

✔️using two pairs from the table, (1, -1) and (2, 3):

Slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{3 -(-1)}{2 - 1} = \frac{4}{1} = 4

Slope = 4

✔️To write an equation for the function, substitute m = 4, and b = -5 into y = mx + b.

Thus:

y = 4x +(-5)

y = 4x - 5

You might be interested in
The graph of a function is (always sometimes never) a line
vfiekz [6]
The answer is sometimes.


If the graph is linear, it would be a line, for example:
y = 2x - 5

If the graph is quadratic, it would be a curve, for example:
y = x^2 - 5x + 6
3 0
3 years ago
Read 2 more answers
Write 3.01 (the one repeating) as a mixed number in simplest form.
Harrizon [31]

3 1/100

anything before the dot is considered your whole number and anything after the dot is your fraction

6 0
3 years ago
In a beach town, 13% of the residents own boats. A random sample of 100 residents was selected. What is the probability that les
mariarad [96]

Answer:

Approximately 0.038 (or equivalently 3.8\%,) assuming that whether each resident owns boats is independent from one another.

Step-by-step explanation:

Assume that whether each resident of this town owns boats is independent from one another. It would be possible to model whether each of the n = 100 selected residents owns boats as a Bernoulli random variable: for k = \lbrace 1,\, \dots,\, 100\rbrace, X_k \sim \text{Bernoulli}(\underbrace{0.13}_{p}).

X_k = 0 means that the kth resident in this sample does not own boats. On the other hand, X_k = 1 means that this resident owns boats. Therefore, the sum (X_1 + \cdots + X_{100}) would represent the number of residents in this sample that own boats.

Each of these 100 random variables are all independent from one another. The mean of each X_k would be \mu = 0.13, whereas the variance of each X_k\! would be \sigma = p\, (1 - p) = 0.13 \times (1 - 0.13) = 0.1131.

The sample size of 100 is a rather large number. Besides, all these samples share the same probability distribution. Apply the Central Limit Theorem. By this theorem, the sum (X_1 + \cdots + X_{100}) would approximately follow a normal distribution with:

  • mean n\, \mu = 100 \times 0.13 = 13, and
  • variance \sigma\, \sqrt{n} = p\, (1 - p)\, \sqrt{n} = 0.1131 \times 10 = 1.131.

11\% of that sample of 100 residents would correspond to 11\% \times 100 = 11 residents. Calculate the z-score corresponding to a sum of 11:

\begin{aligned}z &= \frac{11 - 13}{1.131} \approx -1.77 \end{aligned}.

The question is (equivalently) asking for P( (X_1 + \cdots + X_{100}) < 11). That is equal to P(Z < -1.77). However, some z-tables list only probabilities like P(Z > z). Hence, convert P(Z < -1.77)\! to that form:

\begin{aligned} & P( (X_1 + \cdots + X_{100}) < 11) \\ &= P(Z < -1.77) \\ &= 1 - P(Z >1.77) \end{aligned}.

Look up the value of P(Z > 1.77) on a z-table:

P(Z > 1.77) \approx 0.962.

Therefore:

\begin{aligned} & P( (X_1 + \cdots + X_{100}) < 11) \\ &= 1 - P(Z >1.77) \\ &\approx 1 - 0.962 = 0.038 \end{aligned}.

4 0
3 years ago
Read 2 more answers
Plz help me!!!! 7th grade math!!!
Kazeer [188]
13) A.
14) D.
15) D.
16) B.
17) A.
4 0
3 years ago
Help! Multiply the following polynomials.<br><br> (3x-5)(x-5)
valentina_108 [34]

Answer:

25+3x simplified

Step-by-step explanation:

HOPE THIS HELPS YOU OUT! BE THE FIRST TO COMMENT /FREE ON THESE COMMENTS TO GET A FREE BRAINLIY AWARD! PLZ ALSO CONDISER MARKING ME BRAINLIEST AND THANKS! MY JOURNEY HAS JUST BEGAN ON BRAINLY SO ASK ME IF U HAVE ANY QUESTIONS! -BEACHVIBES23

3 0
3 years ago
Other questions:
  • Carisa predicted she answered 9 questions correctly out of 10 on a test. She actually got 8 answers correct. By what percent was
    14·1 answer
  • Which statement is true about the value of |6|?​
    13·1 answer
  • Which pair shows equivalent expressions?
    15·2 answers
  • Solve the system of equations using the substitution method. y=2+1/4x,
    13·1 answer
  • Jess is comparing fractions, which fraction is greater than 5/6?<br> A) 7/8B) 4/5C) 3/4D) 2/3
    12·2 answers
  • If you have a 2% pay rise on £7 an hour, how much will you get paid an hour?
    14·1 answer
  • M(-2,-6) Across the y-axis: Across the x-axis
    10·1 answer
  • The following is an example of
    12·1 answer
  • For each equation choose a value for x and then solve
    7·1 answer
  • Find the height of a triangle with base 4 cm and area 20 cm2.<br> cm
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!