If f(x) = 2x - 1, then f(-2) =

Answers

Answer 1

Answer:

-5

Step-by-step explanation:

for x=-2

f(x)=2(-2)-1

f(x)=-5


Related Questions

Which of the equations shows an application of the Zero Property of Multiplication? A. 25+0=25 B. 13(3)= C. 0∙2=0 D. (34−2)−(34+3)=−5

Answers

Answer:

0∙2=0

Step-by-step explanation:

Zero Property of multiplication is as follows :

The product of a number and 0 is equal to 0.

In option (c), 0 is multiplied by 2 and as a result, we get 0 as the answer.

It means,

0∙2=0

Hence, option (c) i.e. 0∙2=0 shows the Zero Property of Multiplication.

if x+3y upon 5x+4y= 1/3 find the ratio of x:y ANSWER FASTTT

Answers

Answer:

x : y = 5 : 2

Step-by-step explanation:

Given

[tex]\frac{x+3y}{5x+4y}[/tex] = [tex]\frac{1}{3}[/tex] ( cross- multiply )

5x + 4y = 3(x + 3y)

5x + 4y = 3x + 9y ( subtract 3x from both sides )

2x + 4y = 9y ( subtract 4y from both sides )

2x = 5y ( divide both sides by 2 )

x = [tex]\frac{5}{2}[/tex] y ( divide both sides by y )

[tex]\frac{x}{y}[/tex] = [tex]\frac{5}{2}[/tex] , that is

x : y = 5 : 2

Answer:

x/y = 5/2

Step-by-step explanation:

hello :

(x+3y) /( 5x+4y)= 1/3 means : 5x+4y = 3(x+3y)

5x+4y = 3x+9y

5x-3x = 9y - 4y

2x = 5y

now divid by y : 2x/y = 5y/y

2x/y = 5 so : x/y = 5/2

What is the value of x in the equation 4-3x+5x=12

Answers

X= 4 hope this helps!!!!

Fill in the missing numbers.
__+-3.5=7.25
-3/4-__=1/2
-2 3/8-(-4 2/3) = __

Answers

Answer:

10.75

-5/4

2 7/24

Step-by-step explanation:

1.)

__+-3.5=7.25

Let missing number = x

x - 3.5 = 7.25

x = 7.25 +3.5

x = 10.75

2.)

-3/4-__=1/2

Let missing number = x

-3/4 - x = 1/2

-3/4 - 1/2 = x

(-3 - 2) / 4 = x

-5/4 = x

3.)

-2 3/8-(-4 2/3) = x

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

-19/8 + 14/3 = x

(-57 + 112) / 24 = x

55 / 24 = x

2 7/24

Permutations acellus How many ways can 4 books be arranged on a shelf if there are 8 books to chose from? Note: nPr = n! —— (n-r)!

Answers

Answer:

1680 ways

Step-by-step explanation:

From the question,

nPr = n!/(n-r)!.................. Equation 1

Where, n = Total number of books to chose from, r = number of books to be arranged in the shelf.

Given: n = 8 books,  r = 4 books.

Substitute into equation 1

8P4 = 8!/(8-4)!

8P4 = 8!/4!

8P4 = (8×7×6×5×4!)/4!

8P4 = 1680 ways.

Hence the number of ways 4 books can be arranged in a shelf if there are 8 books to chose from is 1680 ways

PLEASE HELP!!!
Is WXZ〰️YZX?
yes or no, please explain

Answers

Answer:

yes

Step-by-step explanation:

they both have right angles and a side of 21 cm, and they share the side xz. this makes them congruent by side-angle-side congruence, as xz=xz, angle zxw= angle xzy, and zy=xw.

Basim used a trailer to haul dirt. The trailer is in the shape of a rectangular prism. The interior of the trailer has a length of 8 feet, a width of 4 feet, and a height of 2 feet. What is the total number of cubic feet of dirt that the trailer can hold when it is filled so that the dirt is level with the top?

Answers

Answer:

64 cubic feet

Step-by-step explanation:

The Volume of a rectangular prism = Length × Width × Height

Hence,

length = 8 feet

width = 4 feet

height = 2 feet.

Volume of the rectangular prism =

8 feet × 4 feet × 2 feet

= 64 cubic feet

The total number of cubic feet of dirt that the trailer can hold when it is filled so that the dirt is level with the top is 64 cubic feet of dirt

What is an equation of the line that passes through the point (-1,-3) and is parallel to the line 4x-y=2

Its not y=4x+11 that was incorrect

Answers

Answer:

y=4x+1

Step-by-step explanation:

1. 4x-y=2

  -y=-4x+2   divide both sides by -1

  y=4x-2

2. y-y1=m(x-x1)

   y-(-3)=4(x-(-1))

    y+3=4x+4

    y=4x+4-3

    y=4x+1

Parallel lines have the same, so the equation we are making should have the slope of 4.

 

Which of these sets of ordered pairs satisfies an exponential equation? (1) {(1, -1), (2, -8), (3, -27), (4, -64)} (2) {(1, -1), (2, -4), (3, -9), (4, -16)} (3) {(1, -2), (3, -8), (5, -32), (7, -128)} (4) {(1, -2), (3, 2), (5, 6), (7, 10)}

Answers

Answer:

(4, -16)(3, -8)

Step-by-step explanation:

Joseph went to the store to buy something. After they changed him 6% tax, he ended up paying $4.24 for his item. Find the original price of what Joseph bought.

Answers

The original price was 4 dollars

Write an inequality to model the solutions shown on the number line below.

Answers

Answer:

X > 6

Step-by-step explanation:


On Monday the temperature at 10 p.m at sams house was -6 Fahrenheit the temperature at 2 p.p at sams house was 2 Fahrenheit. Which statement about the change in temperature from 10 a.m to 2 p.m at sams house is true?

Answers

Answer:

The answer to this one is B!

Solve the equation. 25% of 80 =​

Answers

Answer: 20

Step-by-step explanation:

.25(80)=20

Answer:

the answer is gonna be 20

What is true about a histogram?
A histogram is a visual display of data.
A histogram uses intervals to group the data.
A histogram can show the distribution shape of data.
All of the above.

Answers

a histogram is a visual display of data.

A histogram is a graphical display of data using bars of different heights. In a histogram, each bar groups numbers into ranges. Taller bars show that more data falls in that range. A histogram displays the shape and spread of continuous sample data.

Where is the coefficient in 5/7+c

Answers

Answer:

coefficient is 1 because 5/7 is the constant, which c is the varible, but there is no coefficient, which is automatically 1

If a line contains the points in the tablet below, which is the equation of the line

Answers

what tablet?? there isn't one
I need the tablets so ya

Which of the following pieces of information could you use to conclude that
trapezoid ABCD is similar to trapezoid WXYZ?
pls help !

Answers

Side WX = 3
The fourth one will be the answer

It’s like a ratio method

What is the mean absolute deviation for this set 65 95 85 70 70 95 55

Answers

Answer:

Mean: 76.42

Population: 7

Mean absolute deviation: 13.06

Step-by-step explanation:

76.42 is the answer you are looking for,i’m not sure though so do some more looking into this question so you don’t get it wrong

What is 2, 3, 4?????????

Answers

Answer:

2 = 51 degrees

3 = 51 degrees

4 = 51 degrees

not that sure

Step-by-step explanation:

https://brainly.com/

What is m∠1? HELP PLEASE

Answers

Answer:

180 degrees

Step-by-step explanation:

Since the angles of a triangle will always be 180 you just have to find the other angles. You already know that one is 34 degrees, but the angle that is 140 degrees is a supplementary angle becuase if you see the bottom line it is straight and that means that you can make 140+x=180 and if you subtract 140 from both sides you know that the inside angle equals 40 degrees. If you add 34 and 40 together you get 74 and when you subtract that from 180 you get 106 so that means the measure of angle 1 is 180 degrees

Multiply polynomials

Answers

Step-by-step explanation:

[tex] {x}^{2} \times (3 {x}^{3} + 15) \\3 {x}^{2} + 15 {x}^{2} [/tex]

hope it helps

[tex] \huge \frak \green{question}[/tex]

Multiply the polynomials :-

x² ( 5x³ - 2x³ + 15)

[tex] \huge \frak \green{solution}[/tex]

→ x² ( 5x³ - 2x³ + 15)

→ x² × (3x³ + 15)

→ 3x² + 15x²

This can be further solved as :-

3x² + 15x²

→ 18x²

[tex] \huge \frak \red{answer}[/tex]

18x²

Jar contains 8 green, 4 blue, 10 red, and 2 yellow skittles. A skittle is randomly drawn replaced then another is drawn. Find each probability

Answers

Answer:

green= 33.33%

blue= 16.7%

red=41.6%

yellow=8.33%

Step-by-step explanation:

Total 24 skittles

Divide them

green

8/24

blue

4/24

red

10/24

yellow

2/24

Answer:

a) 5/144

b) 1/18

c) 1/36

d) 25/144

Step-by-step explanation:

a) 10/24 times 2/24

b) 4/24 times 8/24

c) 4/24 times 4/24

d) 10/24 times 10/24

d) What fraction is equal to 50% of 1/4

Answers

Answer:

1/8

Step-by-step explanation:

50% of 1/4 = 1/8

hope this helps!

Answer:

1/8

Step-by-step explanation:

M {-5,2} and N {5,2} are the endpoints of the segment MN on the coordinate plane what is the length of MN?

Answers

Answer:

Length MN = 10 unit

Step-by-step explanation:

Given: M {-5,2} and N {5,2} are the endpoints of the segment MN.

Length of line segment having co-ordinates as

[tex](x_1, y_1) and (x_2, y_2)[/tex]

is calculated as

[tex]D =\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

So plugging the values in above equation we get

[tex]D =\sqrt{(5+5)^2+(2-2)^2}[/tex]

D = 10 unit

Therefore, Length MN = 10 unit

GIVING 50 POINTS

PLZ HURRY

Answers

Answer: B

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

i took k12 test

Jensen recorded the daily average temperature (in degrees Fahrenheit) at his home over two weeks' time. ​His results are shown below. 48, 56, 63, 67, 58, 60, 63, 72, 69, 59, 63, 68, 73, 64. What was the range of the temperatures? __________ degrees Fahrenheit

Answers

Answer:25

Step-by-step explanation:

73-48=25

To get your answer take the highest number and subtract it from the lowest number

Plzzz tell ans but not for points​ okkkkay if u ans for points i will report


plz telllllll

Answers

Answer:

Given

ΔABC with ∠A = 90°ΔADC with ∠D = 90°The two triangles share same angle ∠C

With two same angles the triangles are similar according to AA similarity postulate:

ΔABC ~ ΔDAC

As we know if triangles are similar then their corresponding sides have same ratio:

AC/CD = BC/AC ⇒ AC*AC = BC*CD ⇒ AC² = BC*CD

51 is approximately equal to
A
7
B
5.1
с
6
D
60

Answers

Answer:

5.1 for my answer

Step-by-step explanation:

because is not equal

Can someone please please help me
I’ll give Brainiest

Answers

Answer:

2500 alone, 150 tax, 2650 total

Step-by-step explanation:

Please mark brainliest!

Please answer correctly! I will mark you as Brainliest

Answers

Answer:

33,333 ft^3

Step-by-step explanation:

A pyramids volume can be defined by V=lwh/3. We know the base is 1000 ft^2, so we multiply that by an additional 100 for the height. We then have 100,000 ft^3. After that, we simply divide it by three, which is 33,333.3 repeating, and round it to 33,333 ft^3

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