For khan academy . Need answer immediately

Answer:

see below

Step-by-step explanation:

Answer choices:

A. the change of the y-coordinates divided by the change in the x-coordinates

B. be always the location of the line in the xy coordinate system-that is, where the line hits the y-axis.

C. always be the location of the line in the xy coordinate system where the line hits the x-axis

D. the initial value of the output variable when the input variable is time. The y-intercept has an x-coordinate of zero, so if the input variable is time, the y-intercept is referred to as the starting value.

Answer:

x = -1

Step-by-step explanation:

y = 6x - 14   y= -8x

6x-14 = -8x

- 6x

-14 = 14x

x = -1

Answer:

The answer is 12.5cm

Step-by-step explanation:

cos 52= 7.7/AC

AC= 7.7/ cos 52

AC= 12.5

Answer:

54

Step-by-step explanation:

Mike saves $36 by buying the shirts at a discounted price.

The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.

The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.

Given the offer,

By 1 at regular price ($45) and get 40% off on two shirt

40 % of 45 ⇒ 0.40 × 45 = $18

So shirt price = 45 - 18 = $27/each

Since 2 shirt buy at this price = 2 × 27 = $54

Money saved = 2×45 - 54 = $36

Hence "Mike saves $36 by buying the shirts at a discounted price".

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Given question is incomplete complete question is ;

Answer:

A

Step-by-step explanation:

MAGMA is below surface

LAVA is whats above surface

Answer:

A. 23/7

Step-by-step explanation:

Step 1:

7x + 15 = 38          Equation

Step 2:

7x = 23         Subtract 15 on both sides

Step 3:

x = 23 ÷ 7          Divide

Answer:

x = 23/7

Hope This Helps :)

Answer:

23/7

Hope this helps..

I am not sure with the answer..

but I think it's correct

Answer:

So he could become a travel burro.

Step-by-step explanation:

The solution to some of the algebraic expressions in the excerpt titled "Why did the donkey get a passport?" is 8x² - 3x + 17 and 2x² + 9x + 3

Why did the donkey get a passport is a title for a series of algebraic expressions that need to be solved.

An algebraic expression is a mathematical expression that comprises integers, variables, and arithmetic operations.

In the title "Why did the donkey get a passport?", we have some of the following questions:

Simplifying the algebraic expressions, we have:

1.

8x² + 2x - 5x + 17

8x² - 3x + 17

2.

4 - 3x² - 9x - 7 + x²

By rearrangement

x² - 3x² - 9x -7 + 4

-2x² - 9x - 3

Multiply through by (-)

2x² + 9x + 3

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9514 1404 393

Answer:

Step-by-step explanation:

The cost of 72 pints is 72 times the cost of 1 pint:

  72 × $4.50 = $324.00 . . . cost of 72 pints

The cost of 36 quarts is 36 times the cost of 1 quart:

  36 × $8.50 = $306.00 . . . cost of 36 quarts

__

The price for quart containers is lower, so the larger size is the better deal.

Answer:

The possible lengths of TR : TR = 17, 40, 42, 52,

Step-by-step explanation:

Given: Triangle WTR with WT = 25 and WR = 40. Identify all possible lengths for TR.

To find the possible lengths of the third side of a triangle:

c - a< b > a + c

a = WT = 25

c = WR= 40

b = TR = ??

40 - 25 < b < 40 + 25

15 < b < 65

The possible lengths of TR has to be greater than 15 and less than 65, Hence: TR = 17, 40, 42, 52,

Answer:

9 weeks

Step-by-step explanation:

Answer:

X=140

Step-by-step explanation:

Firstly, any Quadrilateral has a total sum of its angle equal to 360 degrees

The attachment you are showing us shows that we already know two angles

(70)&(60) degrees. I am assuming the line DC is a tangent, so angle ADC must be 90 degrees since a full angle on a tangent is equal to 180 degrees and there is 90 from the other side (180-90=90). Now we know 3 angles and what you have to do is find X so that when you add them all up they make a sum of 360.

X+70+60+90=360

X=360-70-60-90

X=140

Answer:

the slope is -3

Step-by-step explanation:

Answer:

y= -1/3+2

Step-by-step explanation:

Answer:

y is the vertical, x is the horizontal

I'm probably doing nothing...

I might visit my grandparents tho because they recently moved near by

thanks for the points

Answer:

I might go see my cousins in a different state and most likely play with the snow out there!!

Step-by-step explanation:

Answer:

It is, because it is clear and true. It also gets straight to the point.

Step-by-step explanation:

Answer:

M represents the slope

Answer:

The number being multiplied by x or the slope

Step-by-step explanation:

Given:

In figure, ΔDEF has two equal angles ∠E and ∠F.

[tex]DE=40,EF=6x+10,DF=8x-24[/tex]

To find:

The incorrect statement from the given options.

Solution:

In triangle DEF,

[tex]\angle E=\angle F[/tex]            (Given)

[tex]DF=DE[/tex]            (Base angles are equal, so it is an isosceles triangle)

[tex]8x-24=40[/tex]

[tex]8x=40+24[/tex]

[tex]8x=64[/tex]

Divide both sides by 8.

[tex]x=8[/tex]

Now,

[tex]DE=DF=40[/tex]        (Isosceles triangle)

[tex]EF=6x+10[/tex]

[tex]EF=6(8)+10[/tex]

[tex]EF=48+10[/tex]

[tex]EF=58[/tex]

Therefore, x=8, FE=58, DE =40 and DF = 40.

Hence, the incorrect statement is in option B. So, option B is correct.

An isosceles triangle has two equal opposites sides

The correct statements are

A. FE = 58

A. FE = 58C. x = 8

A. FE = 58C. x = 8D. DF = 40

incorrect statement is

B. DE = 58

Given:

Side DE = 40

Side FE = 6x + 10

Side DF = 8x - 24

Recall,

DF = DE

8x - 24 = 40

8x = 40 + 24

8x = 64

x = 64 / 8

x = 8

Therefore,

Side FE = 6x + 10

= 6(8) + 10

= 48 + 10

= 58

Side DF = 8x - 24

= 8(8) - 24

= 64 - 24

= 40

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Answer:

fifteen, "number sentence"

Step-by-step explanation:

5 + 5 +5 = 15

Multiply calories per nugget by number of nuggets and add to calories per waffle multiplied by number of waffles:

Total calories = 52c + 39w

Now replace the variables with the quantities and find total calories:

Total = 52(5) + 39(10)

Total = 260 + 390

Total = 650 calories

Answer:

f(8)= 113

Step-by-step explanation:

f(8)= 2(8)^2-3(8)+9

f(8)= 2(64)-3(8)+9

f(8)= 128-24+9

f(8)= 113

(USE PEMDAS)

Answer:

y = 16.9x

where y is the ounces of water

and x is the number of bottles

Step-by-step explanation:

Here, we want to find the relationship between ounces of water y and number of bottles x

From the question, we can find the amount of liquid in each bottle

Mathematically, that will be 405.6/24 = 16.9 ounces

There is 16.9 ounces of water per bottle

So the relationship we want to write is that;

y = 16.9x

The Correct Answer is; {C} 1

I took the test.

Answer:

-7

Step-by-step explanation:

-2(4 - 5 ) - 1(2 - 5)^2

-2(-1) - 1(-3)^2

2 - 1(9)

2 - 9

-7

Hope this helps. Pls give brainliest.

Answer:

-7

Step-by-step explanation:

Answer:

21

Step-by-step explanation:

21 + 21 = 42

42 + 12 = 54

so 21 is your answer

Answer:

21.

Step-by-step explanation:

For questions like this, it's easiest to work your way backwards from the answer to get the original number.

In this case, you subtract 12 from 54, which gives you 42 (54-12=41)

Then, you divide by 2, the opposite of "doubling". 42 ÷ 2 = 21.

Since there are no other operations, your original number is 21.

To confirm, just go through the problem again starting with 21 and seeing if you get to 54.

21, doubled (42), add 12 = 54.

Answer:

D

Step-by-step explanation:

We have the equation:

[tex]x^2+y^2+12x-10y-7=0[/tex]

And we would like to convert this to an equation for a circle.

This will require completing the square. Thus, let’s factor group our factors. We will also move the constant to the right. Therefore:

[tex](x^2+12x)+(y^2-10y)=7[/tex]

To complete the square, we divide the b term by 2, square it, and then add the resulting constant to both sides.

Therefore, for the first term, we will have 12/2. 12/2 is 6. 6 squared is 36.

Hence, we would add 36 to both sides.

For the second term, we have -10/2. -10/2 is 5. 5 squared is 25. Hence, we would add 25 to both sides.

This yields:

[tex](x^2+12x+36)+(y^2-10y+25)=7+36+25[/tex]

We can now factor the two terms using the perfect square trinomial pattern. We will also add on the right. Hence, our equation is:  

[tex](x+6)^2+(y-5)^2=68[/tex]

Therefore, our answer is D.

Answer:

Step-by-step explanation:

Properties of a circumcenter;

1). Circumcenter of a triangle is a point which is equidistant from all vertices.

2). Point where perpendicular bisectors of the sides of a triangle meet is called circumcenter of the triangle.

From the picture attached,

9). AG = GB = GC = 21

10). BC = 2(DC)

            = 2×16

            = 32

11). By applying Pythagoras Theorem in ΔGFB,

     GB² = GF² + FB²

     (21)² = GF² + (19)²

     441 = GF² + 361

     GF² = 441 - 361

     GF = [tex]\sqrt{80}[/tex]

     GF = 8.9

12). By applying Pythagoras theorem in ΔGDB,

     GB² = DG² + BD²

     (21)² = (DG)² + (16)² [BD = DC = 16]

     DG² = 441 - 256

     DG = √185

     DG =  13.6

Answer:

16.25 books

Step-by-step explanation:

assuming there are 4 weeks in a month, divide 65 by 4.

Answer:

16  or 16.25

Step-by-step explanation:

You might have to round idek if you meant read or used so