Jeff assumes that the opposite of what he is trying to prove is true. Jeff has
just completed the first step in which geometric process?

Answer:

x = 8

The missing measures are 85 degrees

Step-by-step explanation:

Since 9x + 13 and 11x - 3 are on opposite sides, they are equal, so

9x + 13 = 11x - 3

Subtract 13 from both sides:

9x = 11x - 16

Subtract 11x from both sides:

-2x = -16

Divide both sides by -2:

x = 8

The angle measures are

9(8) + 13 = 72 + 13 = 85

11(8) - 3 = 88 - 3 = 85

Answer:

9x+13 = 11x-3

x = 8

The angles are 85

Step-by-step explanation:

The angles are vertical angles so they are equal

9x+13 = 11x-3

Subtract 9x from each side

9x+13 -9x = 11x-9x-3

13 = 2x-3

Add 3 to each side

13+3 = 2x-3+3

16 =2x

Divide by 2

16/2 = 2x/2

8 =x

11x-3 = 11(8) -3 = 88-3 = 85

Answer:

[tex](a)\ f(x) =200(1.25)^x[/tex]

(b) 954 birds after 7 years

Step-by-step explanation:

Given

[tex]a = 200[/tex] --- initial

[tex]r =25\%[/tex] --- rate

Solving (a): The function.

This is represented as:

[tex]f(x) =a(1+r)^x[/tex]

So, we have:

[tex]f(x) =200(1+25\%)^x[/tex]

Express percentage as decimal

[tex]f(x) =200(1+0.25)^x[/tex]

[tex]f(x) =200(1.25)^x[/tex]

Solving (b): Birds after 7 years

This implies that we calculate f(7)

[tex]f(7) =200(1.25)^7[/tex]

[tex]f(7) =953.67[/tex]

[tex]f(7) =954[/tex] --- approximated

Answer:

y =24

Step-by-step explanation:

The exterior angle is the sum of the opposite interior angles

y+18  + 3y -41  = y+49

Combine like terms

4y -23 = y+49

Subtract y from each side

4y -y -23 = y+49-y

3y -23 = 49

Add 23 to each side

3y -23+23 = 49 +23

3y = 72

Divide by 3

3y/3 = 72/3

y =24

Answer:

option B

Step-by-step explanation:

ASA congruent triangles shall have one more angle being equal

Answer: A

Step-by-step explanation:

x/32 = 18/13

Answer:

1. the side length of the square is 3 when its perimeter is 12.

2. (20/21, 5/21)

Step-by-step explanation:

2. 20/21 ÷ 4 = 20/21 × 1/4 = 5/21(the side length of the square with the given perimeter of 20/21)

=> (20/21, 5/21)

Answer:

y = -7

Step-by-step explanation:

This is a horizontal line

The y value does not change

It is of the form y=

y = -7

Answer:

y = -7

Step-by-step explanation:

A horizontal line has an equation of the form

y = k

where k is the y-coordinate of every point on the line.

We see that every point on this line has y-coordinate -7, so the equation is

y = -7

Answer:

C 230, 92, 75, -52, -92

Step-by-step explanation:

from greatest to least.

please tell your teacher it would correctly be called "from highest to lowest".

but he/she was only focusing on numbers. understandably. so, from the greatest value to the least value.

positive numbers get smaller in their absolute values, when we go to the smaller side, but negative numbers get "bigger" in their absolute values, when we go to the smaller side.

-2 is smaller or lower than -1

and so on.

that is the reason for the correct answer.

Scale factor = (image)/(preimage)

[tex]AC=8\\\\A'C'=12[/tex]

So, the scale factor is [tex]\frac{12}{8}=\boxed{1.5}[/tex]

Check arithmetic

t4-t3 t3-t2

25-16 16-9

=9 =7

sequence is not arithmetic bcoz t4-t3 is unequal to t4-t3

check geometric

t4÷t3 t3÷t2

25÷16 16÷9

=1.6 1.7

sequence is not geometric bcoz t4÷t3 is unequal to t3÷t2

neither

Answer:

its b The angles need to add up to 90 degrees and this fits the formula

Answer:

B is the right answer

Step-by-step explanation:

Hope this helps you!!

Answer:

YW = 10 units

Step-by-step explanation:

∠Y ≅ ∠X ⇒ WX ≅ WY ⇒ YW = 10 units

Answer:

f(x) - g(x) = 3x² - 3x + 8

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Distributive Property

Algebra I

Step-by-step explanation:

Step 1: Define

Identify

f(x) = 3x² - x + 5

g(x) = 2x - 3

Step 2: Find f(x) - g(x)

d

Step-by-step explanation:

any three point line on a distinct line

i think....

Answer:

ok 2 pound per 1 doller and 1 pund per0.50 cent

Step-by-step explanation:

Answer:

64%

Step-by-step explanation:

Answer:

(x, y) = (-1, 4)

Step-by-step explanation:

3x + 3y = -3 (1)

-2x + y = 2 (2)

From (2)

y = 2 + 2x

Substitute y = 2 + 2x into (1)

3x + 3y = -3 (1)

3x + 3(2 + 2x) = -3

3x + 6 + 6x = -3

9x + 6 = -3

9x = -3 - 6

9x = -9

x = -9/9

x = -1

Substitute x = -1 into (2)

-2x + y = 2 (2)

-2(-1) + y = 2

-2 + y = 2

y = 2 + 2

y = 4

(x, y) = (-1, 4)

Answer:

(-1,0)

Step-by-step explanation:

Answer:

25

Step-by-step explanation:

20, 30, 40, 10, 15, 25, 35

Put the data in order from smallest to largest

10,15,20, 25,30,35, 40

The median is the middle

There are 7 pieces of data so the 4th piece is in the middle

10,15,20,     25,   30,35, 40

25 is in the middle so it is the median

[tex]\huge\text{Hey there!}[/tex]

[tex]\bullet \large\textsf{ When you are finding your median you have to place the values from}\\\large\textsf{from descending (least) to ascending (greatest) and find the number}\\\large\textsf{in the center (middle) of that.}\\\\\\\\\bullet\large\textsf{ So, when you see or hear the word median in mathematics thing of it is}\\\large\textsf{asking \bf what is your middle number set}[/tex]

[tex]\large\textsf{Original set: 20, 30, 40, 10, 15, 25, 35}\\\\\\\\\large\textsf{Converting set: 10, 15, 20, 25, 30, 35, 40}\\\\\\\large\textsf{Make sure it is even on each of your sides to justify your result to this}\\\large\textsf{data set/question}\\\\\\\large\textsf{So, far it is even on both sides when you land on \bf number 25}\large\checkmark[/tex]

[tex]\boxed{\boxed{\large\textsf{Answer: \huge \bf 25}}}\huge\checkmark[/tex]

[tex]\large\text{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

Answer:

$115/hr    The 10 hr mechanic

$50/hr    The 5hr mechanic

Step-by-step explanation:

let the 10 hr mechanic charge x

then the 5 hr mechanic charges 165 - x

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

10x + 5(165 - x) = 1400

10x + 825 - 5x = 1400

5x = 575

x = 115    The 10 hr mechanic

165 - x = 50    The 5hr mechanic

Answer:

that is behavior that coefficient

Answer:

11.9 km

Step-by-step explanation:

Distance travelled in 1 day = 7.14 / 3 = 2.38

distance he travels in 5 days = Distance travelled in 1 day x 5 = 11.9 km

Answer:

1.5 pounds of oranges cost $0.81 more than 1.5 pounds of apples

Step-by-step explanation:

1.5 pounds of apples = 1.5 × $1.30 = $1.95

1.5 pounds oforanges = 1.5 × $1.84 = $2.76

$2.76 - $1.95 = $0.81

Answer:

y+1=3(x-4)

Step-by-step explanation:

Hi there!

We are given a slope of 3 and a point (4,-1).

We need to find the equation of the line in point-slope form

Point-slope form is given as y-y1=m(x-x1), where m is the slope, and (x1,y1) is a point

We have all of the needed information to substitute into the formula

First, let's label the values of everything to avoid any confusion

m=3

x1=4

y1=-1

now substitute into the formula *remember, the formula has SUBTRACTION, and we have a NEGATIVE number, so we'll end up subtracting a negative*

y--1=3(x-4)

simplify

y+1=3(x-4)

That's it!

Hope this helps :)

Answer:14 dollars, 2 pounds

Step-by-step explanation:

for they first one your just rounding wich is kinda easy you just round it up to the nearest dollar wich is 1 plus 13= 14 dollars.

for the second one it would be better to specify, but since we already did rounding on the first one this might be about the same topic, meaning it might be 2 pounds. But if not 2 and 1/4 of a pound.

Answer: the answer is in simple rounding-terms, 13.55 dollars rounded to dollars is just rounding off the cents, specifically the dimes or quarters. 55 cent can also be a half-dollar, but that is not important, 0.5 can be rounded to 1 in this case, so for question 14 you would add one to 13 dollars since 0.50 cents got rounded to 1 dollar and you get 14 dollars as your answer for the first question. for the next question American cheese i would assume is the same as the cheese referenced by Mr. Marsh, so the answer  would be 2.25 pounds of cheese for number 15

Step-by-step explanation: my answer.

the answer is 14, 2.25

Answer:

x = 10

Step-by-step explanation:

(5x + 20) = 70

5(10) + 20 = 70

Answer:

(3, -5).

Step-by-step explanation:

By the definition of inverses:

[tex]\text{If $f(a) = b$, then $f^{-1}(b)=a$}[/tex]

In other words, the inverse of a function returns the input when given the output of the original function.

We know that the point (-5, 3) lies on the graph of f(x). In other words:

[tex]f(-5)=3[/tex]

Then by definition:

[tex]f^{-1}(3)=-5[/tex]

So, the point (3, -5) must lie on the graph of f⁻¹(x).