Can anyone help me ASAP!

Answer:

-4.2

Step-by-step explanation:

-2 4/5 - 1 .4

-2.8 -1.4

-4.2

Answer:

-21/5

-4.2- decimal form

-4 1/5- mixed number form

Step-by-step explanation:

Step-by-step explanation:

Finding the Slopes of Parallel and Perpendicular Lines

How do we know if two distinct lines are parallel, perpendicular or neither? To make that determination, we need to review some background knowledge about slope.

Concept 1: When two points are given, the slope of a line can be algebraically solved using the following formula:

Slope Formula

The slope,mm, of a line passing through two arbitrary points \left( {{x_1},{y_1}} \right)(x  

1

​

,y  

1

​

) and \left( {{x_2},{y_2}} \right)(x  

2

​

,y  

2

​

) is calculated as follows…

m = (ysub2-ysub1)/(xsub2-xsub1)

Concept 2: When a linear equation is given, we can find the slope by transforming it into the Slope-Intercept Form. The value of slope will stand out, as it is the coefficient of the linear term (xx-term).

Slope-Intercept Form of a Line

The linear equation written in the form y = mx + by=mx+b is in slope-intercept form where:

m is the slope, and b is the y-intercept

Now, suppose we have two distinct and nonvertical lines, {\ell _1}ℓ  

1

​

 and {\ell _2}ℓ  

2

​

 in Slope-Intercept Form.

Line 1:

line 1 → y=msub1x+b

Line 2:

line 2 → y = msub2x+b

Parallel Lines: The lines are parallel if their slopes are equal or the same. That means

Equal Slopes:

msub1 = msub2

Graph:

graph showing line 1 and line 2 parallel on the coordinate plane.

Perpendicular Lines: The lines are perpendicular if their slopes are opposite reciprocals of each other. Or, if we multiply their slopes together, we get a product of - \,1−1. These lines intersect at a ninety-degree angle, 90°.

Opposite Reciprocal Slopes:

msub1 = -(1/msub2)

Product of Slopes:

msub1× msub2 = -1

Graph:

graph showing line 1 and line 2 perpendicular to each other on the coordinate plane.

Examples of How to Find the Slopes of Parallel and Perpendicular Lines

Example 1: Line 1 passes through the points \left( {1,3} \right)(1,3) and \left( {4,9} \right)(4,9), while line 2 passes through \left( {2,5} \right)(2,5) and \left( { - \,2, - \,3} \right)(−2,−3). Tell whether these lines are parallel, perpendicular, or neither.

Answer:

heres the link 19

https://brainly.com/question/25392276?answering=true&answeringSource=feedPublic%2FhomePage%2F2

Answer:

Step-by-step explanation:

Answer:

here's your answer v

Step-by-step explanation:

The first number in the sequence, , is -2.

Each number after that is the previous number multiplied by -2.

etc. We start by stating that .

Now we need to show that for all n greater than or equal to 2, each number in the sequence is the previous number multiplied by -2.

this is the answer.

Answer:

a1+= -2; an = - 2a-1, n > 2

ANSWER:

2

Step-by-step explanation:

keep 25/6 the same and flip 25/12 to 12/25 then multiply and simplify. So 25/6 times 12/25 equals 300/150. Then simplifying equals 2.

Answer:

I think its 262156

Step-by-step explanation:

Answer:

If f(x) = 4ˣ + 12, f(9) = 262156.

Step-by-step explanation:

f(x) = 4ˣ + 12

Substitute input x = 9.

f(9) = 4⁹ + 12

Evaluate 4 to the 9th power.

f(9) = 262144 + 12

Add 262144 and 12.

f(9) = 262156.

Answer:

59 and 73

Step-by-step explanation:

set width is w and length will be w+14

[tex]P = 2(w+w+14)\\=2(2w+14)\\=4w+28\\=264[/tex]

Solve for w

w = 59

length = 59+14=73

Answer:

(B) 7.6, 8.8

Step-by-step explanation:

u are welcome

Answer:

B.(7.6, 8.8)

Step-by-step explanation:

Answer:

y = −3x + 2

Step-by-step explanation:

It slopes down so it must be B or C

It drops 3 in y for every increase of 1 in x

so m = -3

Answer: undefined

This is because the x value is 5, which means that there is no horizontal movement of the line. So therefore, the line is vertical. And vertical lines have an undefined slope.

Hope this helps!

Answer:

the slope is just x= 5

Step-by-step explanation:

because if its just going streight down it would just be a line on x axis on 5

Answer:

C

Step-by-step explanation:

fits the the graph

Answer:

8 gallons

Step-by-step explanation:

Total gas in the car = 14 gallons

Each hour gas usage = 1.5 gallons

Total hours traveled = 4 hours

Left gas after 4 hours

= 14-1.5(4)

=14-6

=8 gallons

Left gas after t hours

=14-1.5t

Hence the answer is after 4 hours, 8 gallons are left after t hour(s) 14-1.5t

The amount of gas in the tank after driving for 4 hours will be 6 gallons. The amount of gas that is left after t hours will be 14 - 1.5t.

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

PEMDAS rule means for the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.

Nayeli is driving on a long road trip. She currently has 14 gallons of gas in her car. Each hour that she drives, her car uses up 1.5 gallons of gas.

The amount of gas in the tank after driving for 4 hours will be

⇒ 1.5 x 4

⇒ 6 gallons

The amount of gas that is left after t hours will be

⇒ 14 - 1.5t

The amount of gas in the tank after driving for 4 hours will be 6 gallons. The amount of gas that is left after t hours will be 14 - 1.5t.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ2

Answer:

-23

Step-by-step explanation:

h+11.5=-11.5

h=-11.5-11.5

h=-23

you will subtract -11.5 on both sides which leaves h alone on one side

Step-by-step explanation:

subtract 11.5 from both side of equation

h + 11.5 = -11.5

h + 11.5 - 11.5 = -11.5 - 11.5

h + 0 = -23

h = -23

Answer:

i think it is 8 feet long

Step-by-step explanation:

8/12

divide each side by 4

2:3

Please mark brainliest

Answer:

a)

28000 + 3000·x = 36000 + 2000·x --> x = 8 years

b)

28000 + 3000·8 = $52000

Step-by-step explanation:

Answ160

Step-by-step explanation:

Answer:

£67.87

Step-by-step explanation:

(Total increase) = (Original Amount) × (Multiplier)²

Rearrange the equation to find the original amount

(Total increase) ÷ ( Multiplier)² = (Original amount)

To find the Multiplier, add 1 to 3% = 1.03

Substitute what you can

(72) ÷ (1.03)² = Original amount

£67.8669054576 = Original Amount

Round up the number to 2 decimal places since it is British Pounds currency

£67.87 = Original Amount

Answer:

-11

Step-by-step explanation:

-8x+5-3x-4+5x x=2

-8*2+5-3*2-4+5*2

-16+5-6-4+10

-11-6-4+10

-17-4+10

-21+10

-11

Answer:

-10.74

Step-by-step explanation:

Answer:

[tex]-\frac{43}{4}[/tex] or -10.75 or -10[tex]\frac{3}{4}[/tex]

Step-by-step explanation:

I assume you just wanted to add -10 and [tex]-\frac{3}{4}[/tex]  together here.

The answers are as listed. If you need steps let me know.

Hope this helps and have a nice day!

Answer:

sure, will do ;)

Step-by-step explanation:

#Nova

56*54/7= 432

Answer : 432

Step - by - step explanation :

First, multiply . . . 56 x 54 = 3024

Second, divide . . . 3024 / 7 = 432

Answer:

[tex]m = 4[/tex]

Step-by-step explanation:

[tex]6m + 7 = 31 \\ 6m + 7 - 7 = 31 - 7 \\ 6m = 24 \\ \frac{6m}{6} = \frac{24}{6} \\ m = 4[/tex]

check

[tex]6m + 7 = 31 \: \: \: \: \: m = 4 \\ 6(4) + 7 = 31 \\ 24 + 7 = 31 \\ 31 = 31[/tex]

Answer:

4

Step-by-step explanation:

31-7=24

24/6=4

So, 4 is the answer

Answer:

y = 1/2x - 3

Step-by-step explanation:

y2 - y1 / x2 - x1

-7 - (-1) / -8 - 4

-6/ -12

m = 1/2

y = mx + b

y = 1/2x + b

-1 = 1/2(4) + b

-1 = 2 + b

-3 = b

Solving for v in the given equation is performed by making v the equation's

subject.

The statement that describes where the error was made is option;

v can be solved for from the  given expression as follows;

[tex]\displaystyle k = \mathbf{\frac{1}{2} \cdot m \cdot v^2}[/tex]

[tex]\displaystyle k \div m = \mathbf{\left(\frac{1}{2} \cdot m \cdot v^2 \right) \div m}[/tex]

[tex]\displaystyle \frac{k}{m} \times 2 = \left( \frac{1}{2} \cdot v^2 \right) \times 2[/tex]

[tex]\displaystyle \frac{2 \cdot k}{m}= \mathbf{v^2}[/tex]

Taking the square root of both sides of the equation gives;

[tex]\pm \sqrt{\displaystyle \frac{2 \cdot k}{m}} = \mathbf{\sqrt{v^2}}[/tex]

Therefore;

[tex]\displaystyle \pm \sqrt{\frac{2 \cdot k}{m} } = v[/tex]

Therefore, the error was made in the step, [tex]\displaystyle \pm \frac{2 \cdot \sqrt{k} }{m} = \sqrt{v^2}[/tex] , which is by

applying the square root property was applied to only some of the

variables on the left hand side of the equation, rather than the combined

expression on the left hand side of the equation.

Learn more about making a variable the subject of the formula here:

https://brainly.com/question/8481791

Answer:

The square root property should have been applied to both complete sides of the equation instead of to select variables.

or D

Step-by-step explanation:

I found the answer and just gave it to u straight up and I got it correct

Answer:

The competing company is better

7 for 25.90 vs. 7 for 25.83

Step-by-step explanation:

Since it's 3 for 11.07

we need to see how much higher the price will get at 7, so divde 11.07 by 3 then double the price.

3.69 per box for competing company

11.07*2 = 22.14

22.14 + 3.69= 25.83

Answer:

∆JWB≅∆SYH

Step-by-step explanation:

SSS congruency theorem

Answer:

12

Step-by-step explanation: