what's the slope of a line that passes through (-12,15) and (0,4)​

Answer:

the first one

Step-by-step explanation:

its right because you have to try and solve it out to get the answer so u subtract 4 the divide by 10 to get r= 8

Answer: 10r+4=84

Step-by-step explanation:

Since the problem states 10 reams of paper at an unknown price per ream of paper, we can write it as 10r. r is the price per ream of paper. the tax would be written as +4 because that is the tax stated. The 84 would be the total price. Therefore, the equation would be 10r+4=84.

Answer:

[tex]\frac{13}{3}[/tex] ÷ [tex](-\frac{5}{6})[/tex]

Step-by-step explanation:

[tex]4\frac{1}{3}/(-\frac{5}{6})=\\\\\frac{13}{3}/(-\frac{5}{6})[/tex]

Answer:

13/3  ÷ - 5/6

Step-by-step explanation:

4 1/3 ÷ - 5/6

Change the mixed number to an improper fraction

4 1/3 = (3*4 +1)/3 = 13/3

13/3  ÷ - 5/6

Answer:

a = 6

Step-by-step explanation:

10a - 41 = 19

10a = 19 + 41

10a = 60

a = 60/10

a = 6

Answer:

a=  6

Step-by-step explanation:

10a - 41=19

+41         +41

10a = 60

÷10    ÷10

a=  6

Answer:

-11 is

=> Integer

=> Rational Number

Answer:

Integer

Step-by-step explanation:

-11 is a negative number. It is an integer.

Integers are all the whole numbers and their opposites.

Answer:

you would multiply length times width witch would be 12in by 30in 360

Answer:

H = 0.95 feet

Step-by-step explanation:

The circumference of Earth = 2πR

My belt = 2πR    (Where R is the radius of the Earth)

Peter's belt = 2πR+6

We have to find the Height "h" so the radius of the circle for Peter's belt becomes R+h So the expression becomes 2π(R+h)

But we already know,

Peter's belt = 2πR+6

So,

2πR+6 = 2π(R+H)

2πR + 6 = 2πR + 2πH

Subtracting 2πR to both sides

=> 6 = 2πH

OR

=> H = 6/2π

=> H = 3/π

Where π = 3.14

=> H = 0.95 feet

Answer: 0.00016 miles

Step-by-step explanation:

According to Google, the circumference of the Earth is 24,901.461 miles. Using the formula 2*pi*r = circumference, the radius of your belt is around 3963.19061 miles. Now, 6 feet is 0.001 miles. So his belt is 24,901.461+0.001 = 24,901.462 miles. Use 2*pi*r to get 3963.19077 miles, a full 0.00016 miles above the surface!

Answer:

y = x + 16

Step-by-step explanation:

Step 1: Find slope of perpendicular line

Take the negative reciprocal of the 1st line

m = 1

Step 2: Find b

y = x + b

14 = -2 + b

b = 16

Step 3: Write equation

y = x + 16

Answer:

y = x + 16

Step-by-step explanation:

Given the equation y = -x - 1, we see that the slope (the coefficient of the x term) is -1.  A line perpendicular to this one has a slope which is the negative reciprocal of the given equation:   +1.

Using the point-slope formula for the equation of a straight line, we get:

y - 14 = +1(x + 2), or y - 14 = x + 2, or y = x + 16

Answer:

Option A.

Step-by-step explanation:

Note: The given function should be [tex]f(x)=\dfrac{2}{5}(10)^x[/tex] instead of [tex]f(x)=(10)^x[/tex].

Consider the given function is  

[tex]f(x)=\dfrac{2}{5}(10)^x[/tex]

We need to find the function which represents a reflection of f(x) across the x-axis.

If a function f(x) is reflected across the x-axis, then the new function is

[tex]g(x)=-f(x)[/tex]

Using this rule, we get

[tex]g(x)=-\dfrac{2}{5}(10)^x[/tex]        [tex][\because f(x)=\dfrac{2}{5}(10)^x][/tex]

Therefore, the correct option is A.

[tex]\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the Circles.

thus the, Equation of circle with centres as (h, k) is given as,

(y-k)^2 + (x-h) ^2 = r^2

where, r is the radius if the circle.

so here, we can see that,

[tex] {r}^{2} = 100 \\ r = 10 \\ [/tex]

thus , we can say that, 2r = d

thus diameter = 20 units

Answer:

The answer would be A. because AB/EF=BC/DE

Step-by-step explanation:

AB = 2

EF = 5

BC = 1

DE = 2.5

2/5 = 0.4

1/2.5 = 0.4

The equation AB/EF=BC/DE is correct. All of the others are not.

The slope of line segment AC the same as the slope of line segment DF in the figure below because AB/EF = BC/DE.

Two triangles are said to be congruent if the length of the sides is equal, a measure of the angles are equal and they can be superimposed.

We need to find the proportionality statement for the ratio of the sides of the triangles.

If two triangles are similar, then the corresponding sides are proportional.

ABC ≈ DEF,

Here AB, BC, and AC are corresponding sides of DE, EF, and DF respectively.

Using the definition of similarity we ge

AB = 2

EF = 5

BC = 1

DE = 2.5

2/5 = 0.4

1/2.5 = 0.4

The equation AB/EF = BC/DE is correct. All of the others are not.

Learn more about a triangle;

https://brainly.com/question/7116550

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Answer:

6 sq units, 4 sq units, 6 sq units

Step-by-step explanation:

Method:

count dots inside ...(a)

the ones on the border of the polygon and divide by two ...(b)

(a)+(b)-1 = area

use this method for the red, green, and yellow polygons.

Red:

(a): 2

(b): 10/2 = 5

2+5-1 = 6 sq units

Green:

(a): 0

(b): 10/2 = 5

0+5-1 = 4 sq units

Yellow:

(a): 3

(b): 8/2 = 4

3+4-1 = 6 sq units

I hope this helps, and plz mark me brainliest!!!!

Answer & Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

5 to13

Step-by-step explanation:

hope it help

Answer:5

5 and 13

Step-by-step explanation:

Answer:

(0, -2)

Step-by-step explanation:

The y-int is where the graph crosses the y-axis when x = 0. The easiest and fastest way to do this problem is to graph the equation using a graphing calc and tracing the graph to find your value.

Answer:

Step-by-step explanation:

for y intercept x=0

thus y= -2

the point is (0,-2)

Answer: Rita has $25 saved.

Step-by-step explanation:

You could think about it this way: $69 is $6 less than 3 times the amount of money that she has. So, let's solve this:

1) First you would add $6 to the $69 that the skateboard costs because you     need to know what her savings would be if she multiplied it by 3.

      $69+$6=$75  

2) Now that we know that if we tripled her savings, we would have $75. We can now find out how much she actually has saved up by dividing the total of $75 by 3.

      $75÷3=$25

I hope this helped you with your question!

Answer:

she saved $25

Step-by-step explanation:

Answer:

The height of the tree is about 30 feet.

Step-by-step explanation:

tan(55) = h/21

*21          *21

21*tan(55)=h

29.99=h

h=29.99=30 feet

The height of the tree will be 30 feet.

It's a form of a triangle with one 90-degree angle that follows Pythagoras' theorem and can be solved using the trigonometry function.

Given; A tree casts a shadow 21 m long.

The angle of elevation of the sun is 55°.

Let h be the height of tree.

Then the height of the tree will be;

tan(55) = h/21

21*tan(55)=h

29.99=h

h = 29.99 = 30 feet

Therefore, The height of the tree will be 30 feet.

More about the right-angle triangle link is given below;

brainly.com/question/3770177

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Answer:

B. an=100 + (n-1)5

Step-by-step explanation:

Using the explicit formula

an = a1+ d(n-1)

we know a1 is 100, which is the staring amount

We know d is the amount added each time or the common difference which is 5

an = 100 + 5(n-1)

If we want to find a specific day, we can substitute in for n

Answer:

The number is 5250

Step-by-step explanation:

5/6 * x = 4375

Multiply each side by 6/5 to isolate x

6/5 * 5/6 x = 4375 * 6/5

x =5250

Answer:

5250

Step-by-step explanation:

5/6x= 4375

x= 4375*6/5

x= 5250

Answer:

The found values are:

A = 1/3

B = -8/3

Step-by-step explanation:

We know that general equation is given by:

y = mx + c

where m is the slope and c is a constant.

x + 3y = -5

y = -(1/3)x - 1/3(5)

Slop of the equation is -(1/3). As parallel line have same slope substitute it in the first equation:

Ax + By = 3

By = -Ax - 3

By = (1/3)x - 3

Hence, A = 1/3

Substitute point (-7,2) into the equation:

B(2) = (1/3)(-7) -3

B(2) = -7/3 - 3

B(2) = -16/3

B = -16/6

B = -8/3

Answer:

1. The train is will cross the tunnel in 2 minutes.

The train is traveling at 30 km every hour or 60 minutes, so it will move 1 km every 60/30 minutes, or every 2 minutes.

2. Explanation here first: 22 free throws means 22 points and 22 field goals.

184-22=162 points they still needed to get, and

85-22=63 goals they still needed to score

We can now use a system of equations, (where x is 3-point goals, and y is 2-point goals) to solve the problem:

3x+2y=162

x+y=63 (-2)

-------------------------------------------------------------

3x+2y=162

-2x-2y= -126

-------------------------------------------------------------

x=36, and y=27 so the NBA players got 36 3-point goals, and 27 2-point goals

We can check this:

(36*3) + (27*2) + 22 = 108+54+22 = 184 total points

Step-by-step explanation:

Hope this helps!

Answer:

C. 1000

Step-by-step explanation:

10 is not a perfect cube.

100 is not a perfect cube, it is a perfect square.

1000 is a perfect cube.

10 × 10 × 10 = 1000

10000 is not a perfect cube.

Answer:

it says 10

Step-by-step explanation:

A decade is 10 years.

apparently

Answer:

(a) y = -3/5 x + 13/5

(b) y = 5/3 x + 1/3

Step-by-step explanation:

(a) The slope of the tangent line is dy/dx.  Use implicit differentiation:

x² + y² + 4x + 6y − 21 = 0

2x + 2y dy/dx + 4 + 6 dy/x = 0

2x + 4 + (2y + 6) dy/dx = 0

x + 2 + (y + 3) dy/dx = 0

(y + 3) dy/dx = -(x + 2)

dy/dx = -(x + 2) / (y + 3)

At the point (1, 2), the slope is:

dy/dx = -(1 + 2) / (2 + 3)

dy/dx = -3/5

Using point-slope form of a line:

y − 2 = -3/5 (x − 1)

Simplifying to slope-intercept form:

y − 2 = -3/5 x + 3/5

y = -3/5 x + 13/5

(b) The normal line is perpendicular to the tangent line, so its slope is 5/3.  It also passes through the point (1, 2), so point-slope form of the line is:

y − 2 = 5/3 (x − 1)

Simplifying to slope-intercept form:

y − 2 = 5/3 x − 5/3

y = 5/3 x + 1/3

Answer:

×=19

Step-by-step explanation:

90-22=68

3x+11=68

68-11=57

3x=57

57÷3=19

x=19

Answer:

A: There is only one solution since the two lines meet up. If it was parallel or the two lines where on top of each other there would be either an infinite amount of solutions or zero.

B:(3,5)

Step-by-step explanation:

Answer:

x ≈ 34.88 square cm

Step-by-step explanation:

Solve by proportional formula:

Area of a sector/area of circle* = sector central arc measure/360

*area of a circle = πr²

x/(53.29π) = 75/360

x/53.29π = 0.2083

x = 11.1020833π

x = 34.8782233

x ≈ 34.88 square cm

Answer:

Other guy is right also i had it on my test x ≈ 34.88 square cm

Step-by-step explanation:

Answer:

12 rational

Step-by-step explanation:

2√3×√12 =

= 2√3×√2²·3

= 2√3×2√3

= 2×2×√3×√3

= 4×3

= 12

Answer: B

Step-by-step explanation:

Makes the most sense out of all the options because it’s the most random or unpredictable

Hey there! :)

Answer:

y = 3x -10

Step-by-step explanation:

An equation being parallel to the line y = 3x - 2 must contain the same slope, or 3.

Therefore:

Plug in the coordinate points into the formula y = mx + b along with the slope:

-4 = 3(2) + b

-4 = 6 + b

Subtract 6 from both sides:

b = -10.

Rewrite the equation in slope-intercept form:

y = 3x -10. This is the line that is parallel and passes through (2, -4).

Answer:

You shoulda showed us the diagram but corresponding angles are the 2 angles on the diagram which are the same, look closely and you could tell which 2 are the same, they also have to be on THE SAME SIDE, right or left

Hope that helps!

Step-by-step explanation:

Answer:

C, Angle 3 and Angle 7

Step-by-step explanation:

heres the full question

In the diagram, which pair of angles are corresponding angles?

Angle 1 and Angle 8

Angle 4 and Angle 6

Angle 3 and Angle 7

Angle 2 and Angle 4