What is the y-intercept of a line that has a slope of 3 and passes through point (-1, 7)?
0-10
O 4
3
07

Answer:

7/12

Step-by-step explanation:

2 1/3 + 1 3/4

7/3 + 7/4

28-21/12

7/12

:)ur wel

Answer:

1. 8x+9

2. 3x + 11

3. 9x + 8

4. 11x+9

5. 6x

6. 10x+ 8

7. 7x+7

Step-by-step explanation:

Answer:

question 1: 8x + 7

question 2: 3x + 11

question 3: 9x + 8

question 4: 11x + 9

question 5: 6x

question 7: 10x + 8

question 8: 7x + 7

Answer:

3/30

Step-by-step explanation:

Answer:

1/10

Step-by-step explanation:

you divide by 3/5 by 6

Answer:

87

Step-by-step explanation:

Answer:

No parallel lines

Lines 1 and 3 are perpendicular

Step-by-step explanation:

Given:

[tex]Line\ 1:y = -\frac{3}{4}x + 3[/tex]

[tex]Line\ 2: \frac{2}{8}x -6y = 2[/tex]

[tex]Line\ 3: 3y = 4x + 7[/tex]

Required

Determine if they are parallel, perpendicular or not

The slope intercept of a line has the form:

[tex]y = mx + b[/tex]

Where

[tex]m = slope[/tex]

First, we calculate the slope of each lines

[tex]Line\ 1:y = -\frac{3}{4}x + 3[/tex]

Compare the above to [tex]y = mx + b[/tex]

[tex]m_1 = -\frac{3}{4}[/tex]

[tex]Line\ 2: \frac{2}{8}x -6y = 2[/tex]

[tex]\frac{2}{8}x -6y = 2[/tex]

Make -6y the subject

[tex]-6y = 2 - \frac{2}{8}x[/tex]

Divide through by -6

[tex]y = -\frac{2}{6} + \frac{2}{8*6}x[/tex]

[tex]y = -\frac{1}{3} + \frac{1}{8*3}x[/tex]

[tex]y = -\frac{1}{3} + \frac{1}{24}x[/tex]

[tex]y = \frac{1}{24}x-\frac{1}{3}[/tex]

Compare the above to [tex]y = mx + b[/tex]

[tex]m_2 = \frac{1}{24}[/tex]

[tex]Line\ 3: 3y = 4x + 7[/tex]

[tex]3y = 4x + 7[/tex]

Divide through by 3

[tex]y = \frac{4}{3}x + \frac{7}{3}[/tex]

Compare the above to [tex]y = mx + b[/tex]

[tex]m_3 = \frac{4}{3}[/tex]

So, we have:

[tex]m_1 = -\frac{3}{4}[/tex]

[tex]m_2 = \frac{1}{24}[/tex]

[tex]m_3 = \frac{4}{3}[/tex]

None of the slopes are the same, so none of the lines are parallel.

However, lines 1 and 3 are perpendicular.

This is shown below

When the slope of two lines satisfy the following condition, then they are  perpendicular.

[tex]m_1 = -\frac{1}{m_3}[/tex]

This gives:

[tex]-\frac{3}{4} = -\frac{1}{4/3}[/tex]

[tex]-\frac{3}{4} = -1/\frac{4}{3}[/tex]

Convert / to *

[tex]-\frac{3}{4} = -1*\frac{3}{4}[/tex]

[tex]-\frac{3}{4} = -\frac{3}{4}[/tex]

Answer:

First blank= -1

Second blank= 14

Step-by-step explanation:

Plug in x to the equation. 1/7 x (-7)= -7/7=-1

2=1/7(x) to divide fractions you multiply by the reciprocal

2 x 7/1= 1/7× 7/1

14/1=14

Responder:

3,46

Explicación paso a paso:

Número de lápices comprados = 36

Costo total de los 36 lápices = 97,5

El precio unitario de cada lápiz será:

Costo total / número de lápices

97,5 / 36

= 2.708

El precio de venta por lápiz será:

Precio por lápiz + 75 céntimos

2,708 + 0,75

= 3.458

= 3,46

Por tanto, el precio de venta por lápiz será 3,46.

Answer:

v=5

Step-by-step explanation:

Answer:

V=5

Step-by-step explanation:

Answer:

Both ends go down

Step-by-step explanation:

If the degree is EVEN, both ends pint the same way. If it is ODD, they point in opposite directions. The negative sign means the equation is flipped over the x axis and both ends go down.

Answer:

Ivan gets £90 more than Tanya

Step-by-step explanation:

Given that

Total amount = £150

Ratio: 4:1

First of all we have to find the sum of ratio: 4+1 = 5

Now,

Ivan's Share:

[tex]= \frac{4}{5} * 150\\= 120[/tex]

Tanya's Share:

[tex]=\frac{1}{5} * 150\\= 30[/tex]

Ivan gets £120 and Tanya gets £30

The difference between their shares is the answer.

So,

[tex]= 120-30 = 90[/tex]

Hence,

Ivan gets £90 more than Tanya

Answer:

x = 1/5 or x=0.2

Step-by-step explanation:

isolate the variable by dividing each side by factors that dont contain the variable.

Step-by-step explanation:

If the points are (-1/2, 1/2) and (-2/1, 2/1) then you can enter these into the Slope equation

(y1 - y2) / (x1 - x2)

1/2 - 2/1 = 1/2 - 4/2 = - 3/2 or - 1.5

-1/2 - (-2/1) = - 1/2 + 4/2 = 3/2 or 1.5

So your Slope is -1.5/1.5 = - 1

Answer:

D. [tex]\displaystyle (x - 5)^2 = 36[/tex]

Step-by-step explanation:

All you are doing is converting this Quadratic Equation to a Vertex Equation in Vertex Form by completing the square:

[tex]\displaystyle [\frac{b}{2}]^2 \\ \\ x^2 - 10x - 11 = 0 → x^2 - 10x + 25 - 36 = 0→ (x - 5)^2 - 36 = 0 \\ \\ (x - 5)^2 = 36[/tex]

It is that simple, is it not?

I am joyous to assist you at any time.

Answer:

(2x + 3) (2(2)x2 – 2+4)

Step-by-step explanation:

thats what i got hope it helps :)

Answer:

12x+18

Step-by-step explanation:

(2x+3)(2 x 2-2+4)

(2x+3)(4-2+4)

(2x+3)(2+4)

(2x+3)(6)

(2x+3) x 6

12x+18

I'm assuming the 2x2 is 2 times 2

Answer:

FOR QUESTION #1 : 90-68= 22 degrees

FOR QUESTION #2: 180-58=122 degrees

FOR QUESTION #3: angle 1 is supplementary to angle 6

Step-by-step explanation:

FOR QUESTION #1 : 90-68= 22 degrees

FOR QUESTION #2: 180-58=122 degrees

FOR QUESTION #3: angle 1 is supplementary to angle 6

Answer:

1) -1

2) -1/4, 4

Step-by-step explanation:

1)

The first equation is

y = -x + 5

Comparing with

y = mx + b, we see thqat the slope, m, is -1

1) Answer: slope = -1

2)

The equations are

y = -1/4 x + 2 and

y = 4x + 8

Comparing the two equations with y = mx + b, we see that the slopes are

-1/4 and 4

2) Answer: slope = -1/4; slope = 4

Answer:

For the first one, we see that from one point to another it rises one and goes to the left one. This means the slope is 1/-1, which is -1.

For the second one, the slope of the first equation is -1/4, and the slope of the second equation is 4/1, or 4. Since the lines are perpendicular in 2, the two lines will be opposite reciprocals of each other.

Pr ( A & B ) , ie Probability (Senior Student with Statistics) = 0.15

Given : Event A = Student is senior, Event B = Student takes statistics

Pr (A & B) = Favourable Students / Total Students = 15 / 100

P = 0.15

To learn more, refer https://brainly.com/question/13604758

Answer:

x+ 90° + 30° = 360°

x + 120° = 360°

x = 360° - 120°

x = 240°

Answer:

70 + 4D

Step-by-step explanation:

- (2 x 100) + (7 x 10) + (4 x D) + (2 x 100)

   - (200) + (70) + 4D + 200

       -200 + 70 +4D + 200

             -130 + 4D + 200

                   70 + 4D

Answer:

-4

Step-by-step explanation:

Let the number be x

If she multiplies the number by 2, it will become 2x

If divided by 4, it will be 2x/4, if she multiplies the result by itself, we will have:

2x/4(2x/4) = 4x/16

If she subtract the original number from 6 and divide by 10, we will have;

x-6/10

Equating both expressions

4x/16 = x-6/10

Cross multiply

4x(10)= 16(x-6)

40x =16x-96

40x-16x = -96

24x = -96

x = -96/24

x = -4

Hence the number is -4

Answer:

Choice #4

Step-by-step explanation:

Answer:

Step-by-step explanation:

It is rotation as "S" has central symmetry

Other options don't work

Answer:

Rhombus I guess

Step-by-step explanation:

Because rhombus have equal interior angles which is 90° so we can bisect or divide equally

Answer:

[tex]x > 17[/tex]

Step-by-step explanation:

[tex]120 -8x < -16\\- 120\\\frac{-8x}{-8} < \frac{-136}{-8}\\x > 17[/tex]

Answer: 100 paintings

Step-by-step explanation:

To calculate the breakeven point, use the following formula:

= Fixed cost / Contribution margin

The Fixed cost is the one that does not change which is the $100 spent on brushes.

Contribution margin = Sales price - variable cost(cost that he incurs per painting)

= 10 - 9

= $1

Breakeven point = 100/1

= 100 paintings

Answer:

170

Step-by-step explanation:

91+79

Answer:

The range would be 170

Step-by-step explanation:

79- -91= 170

Answer:

7x-12

Step-by-step explanation:

use PEMDAS

1. parenthesis

2. exponents

3. multiplication

4. division

5. addition

6. subtraction

Answer: 0.74

Step-by-step explanation: