All categories

2 years ago

Which of the following is a correct equation for the line passing through the

Mathematics

2 answers:

11Alexandr11 [23.1K]2 years ago

6 0

Answer:

Step-by-step explanation:

m = -3

y = mx +b

y = -3x + b

Plugin x = -1 and y = 4

4 = -3*(-1) +b

4 = 3 + b

4-3 = b

b = 1

y = -3x + 1

denis23 [38]2 years ago

6 0

Answer:

B, C, D

Step-by-step explanation:

The equation of a line in point slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Here m = - 3 and (a, b ) = (- 1, 4 ) , then

y - 4 = - 3(x - (- 1) ) , that is

y - 4 = - 3(x + 1) → D

Distribute parenthesis

y - 4 = - 3x - 3 ( add 4 to both sides )

y = - 3x + 1 → C

Add 3x to both sides

3x + y = 1 → B

You might be interested in

A telephone company in germany charges 0.12 euro per minute to call the US after a connection fee of 1.50 euro what is the total

Nana76 [90]

Answer:

Total minutes = 47 Minutes

Step-by-step explanation:

A telephone company in germany charges 0.12 euro per minute to call the US after a connection fee of 1.50 euro

Expressing the statement in mathematical terms;

Cost = 0.12x + 1.5 where x represens minutes

if the cost of the call was 7.14 euro, total minutes = ?

7.14 = 0.12x + 1.5

7.14 - 1.5 = 0.12x

5.64 = 0.12x

x = 5.64 / 0.12 = 47

Total minutes = 47 Minutes

8 0

3 years ago

Please help!<br> i will reward brainliest

drek231 [11]

Answer:

37.9 degrees

Step-by-step explanation:

Using the law of sines, $\frac{\sin(m\angle C)}{21}=\frac{\sin(47^\text{o})}{25}$ . It follows that $\sin (m\angle C) = \frac{21\sin(47^\text{o})}{25} \approx 0.6143371$ . Therefore, $m\angle C = \sin^{-1}(0.6143371)=37.9^\text{o}$ .

6 0

3 years ago

Read 2 more answers

If f(6) if f(x)=x^2 / 3 + x

MakcuM [25]

Answer:

1) If the function is $f(x)=\frac{x^{2}}{(3+x)}$ , $f(6)=4$

2) If the function is $f(x)=x^{(2/3)}+x$ , $f(6)=9.30$

3) If the function is $f(x)=\frac{x^{2}}{3}+x$ , $f(6)=18$

Step-by-step explanation:

To solve this problem you must apply the proccedure shown below:

f(6) means that you must substitute x=6 into the function above.

1. If the given the function $f(x)=\frac{x^{2}}{(3+x)}$ , you obtain:

$f(6)=\frac{6^{2}}{(3+6)}=4$

2. If the function is $f(x)=x^{(2/3)}+x$

Then:

$f(6)=6^{(2/3)}+6=9.30$

3. If the function is $f(x)=\frac{x^{2}}{3}+x$

Then:

$f(6)=\frac{6^{2}}{3}+6=18$

6 0

3 years ago

Read 2 more answers

Please help! This is a big part of my grade. I will give brainliest.

Lynna [10]

Answer:

8658 ft.

Step-by-step explanation:

Volume= length*width*height

rectangle= 21*18*13= 4914

triangle= 16*18*13= 3744

4914+3744=8658

8 0

3 years ago

Find the mean and median of these data: 2, 5, 13, 15, 19, 21.

Maru [420]

The Arithmetic Mean and Median of the given set of data ( 2, 5, 13, 15, 19, 21 ) are 12.5 and 14 respectively.

<h3>What is Arithmetic mean?</h3>

Arithmetic mean is simply the average of a given set numbers. It is determined by dividing the sum of a given set number by their number of appearance.

Mean = Sum total of the number ÷ n

Where n is number of numbers

Median is the middle number in the data set.

Given the sets;

2, 5, 13, 15, 19, 21

n = 6

Mean = Sum total of the number ÷ n

Mean = (2 + 5 + 13 + 15 + 19 + 21) ÷ 6

Mean = 75 ÷ 6

Mean = 12.5

Median is the middle number in the data set.

Median = ( 13 + 15 ) ÷ 2

Median = 14

Therefore, the Arithmetic Mean and Median of the given set of data ( 2, 5, 13, 15, 19, 21 ) are 12.5 and 14 respectively.

Learn more about arithmetic mean here: brainly.com/question/13000783

#SPJ1

3 0

1 year ago