Mathematics High School

given the function f(x)=2-3x , what is f(-4)

Answers

Answer 1

Answer:

2

Step-by-step explanation:

Answer 2

Answer:

f(-4) = 14

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = 2 - 3x

f(-4) is x = -4

Step 2: Evaluate

Substitute in x:                    f(-4) = 2 - 3(-4)Multiply:                               f(-4) = 2 + 12Add:                                     f(-4) = 14

Related Questions




Angie is thinking of a number that is divisible by both 8 and 12. What is the smallest number that Angie could be thinking of?

Answers

Answer:

24

Step-by-step explanation:

Answer:

Angie is thinking of the number 24.

Explanation:

24 can be divided into 8 three times & can be divided by 12 only two times.

) Tina planted 75 plants. N plants did not grow leaving her with 48 plants. Which equation expresses how many plants Tina lost?​

Answers

Answer:

Step-by-step explanation: I think this is the answer

Tina planted 75 plants and only 48 grow

To know how much is lost we subtract 75 from 48 which gives us 27

75-48=27

Malcolm has 225 yards of yarn to make 100 bracelets. Suppose the total length of the yarn stayed the same, but instead of Malcolm making 100 bracelets, he only made 1,000 bracelets. How long will the yarn be for each bracelet

Answers

Given :

Length of yarn, l = 225 yards.

Number of bracelets he made, n = 1000 .

To Find :

How long will the yarn be for each bracelet.

Solution :

Let, length of yarn used in each bracelet is x.

So,

[tex]x = \dfrac{Total\ length \ of yarn}{Number \ of \ bracelets\ made}\\\\x = \dfrac{225}{1000}\\\\x = 0.225 \ yards[/tex]

Therefore, length of yarn used in each bracelet is 0.225 yard.

Is the point (10,-2) a solution to the equation y = -2x + 16? Explain,
??? pls answer

Answers

Answer:

no

Step-by-step explanation:

y = -2x + 16

-2 = -2(10) + 16

-2 = -20 + 16

-2 = -4

which is wrong

Plug the point (10,-2) into y = -2x + 16 and solve. If the equation is a true, then yes, it is a point on the equation.

y = -2x + 16 > -2 = -2(10) + 16

Now, solve.

-2 = -2(10) + 16 > -2 = -20 + 16  - Start by multiplying out parenthesis.

-2 = -20 + 16 > -2 = -4 - Add.

-2 = -4

The equation cannot be simplified any further. Since -2 is not equal to -4, we can conclude that no, (10,-2) is not a solution to the equation y = -2x + 16.

6 The manufacturer of an oven states that the
temperatures displayed while cooking are within a
5% error. Rachel is using the oven to cook a chocolate
cake that must be cooked at a temperature below
325°C. The oven display shows a temperature of 310°C.
Can Rachel be certain that the temperature is suitable
for cooking her cake? Explain your answer.

Answers

Result, Rachel can be certain that the temperature is suitable for her cake.

Rachel cannot be certain that the temperature displayed on the oven is suitable for cooking her cake.

The manufacturer's claim of a 5% error on the displayed temperature means that the actual oven temperature can be off by 5% in either direction. To calculate the range of possible actual temperatures, we need to find 5% of 310°C. 5% of 310 = (5/100) * 310 = 15.5°C This means that the oven temperature could be 15.5°C higher or 15.5°C lower than the displayed temperature.

To find the maximum possible temperature, we add the error to the displayed temperature: 310°C + 15.5°C = 325.5°C Since the maximum possible temperature is slightly above 325°C, Rachel cannot be certain that the temperature is suitable for cooking her cake, as it needs to be cooked at a temperature below 325°C. It's important for Rachel to consider using an alternative thermometer or verifying the actual temperature with the oven manufacturer to ensure the cake is cooked at the desired temperature.

To know more about thermometer  visit:

https://brainly.com/question/16840415

#SPJ2

When you have no clue what you’re doing

Answers

Answer:

25y^2 -20iy + 4i^2

Step-by-step explanation:

Theres an acronymn called Foil (first, ouside, inside, last) for expanding an expression like that

For this expression:

= (5y - 2i) (5y - 2i)

= 25y^2 - 10iy - 10iy + 4i^2

= 25y^2 -20iy + 4i^2

This is assuming that "i" is not the imaginary number "i"

what is 4/12 as a percent

Answers

Answer:

33.333333333333%

Step-by-step explanation:

it is 33.33% i think. i looked it up to make sure and it said that.

HELLLP PLSSS ASAPP!!!!!!!!!1

Answers

The answer is A, square root of 29

h e l p m e p l e a s e

Answers

Answer:

(x-4) is the common factor

Step-by-step explanation:

Answer:

x-4

Step-by-step explanation:

WILL GET BRAINLIST
5x+106=7x-10

Answers

Answer:

The answer is 0. hope it helps

Step-by-step explanation:

Answer:

x=58

Step-by-step explanation:

5x+106=7x-10

-2x = -116

x = 58

the question is on the sheet.​

Answers

I’m not sure but I think the answer is C

11 + 16 + 4 = ????????????

Answers

Answer:

31! :D

Step-by-step explanation:

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If you want to join you can,

Good luck!!

God Bless!!

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Asap solve problem please. Will give BRAINLIEST.​

Answers

Answer:

5 ft, 6.5 ft, 7 ft

Step-by-step explanation:

area of trapezoid = (base1 + base2)h/2

Let the unknown base = x

area of trapezoid = (8.5 + x)(6)/2

area = 3x + 25.5

We want the area to be between 40 ft^2 and 48 ft^2.

40 < 3x + 25.5 < 48

14.5 < 3x < 22.5

4.8333 < x < 7.5

Answer: 5 ft, 6.5 ft, 7 ft

What is the answer i need help?

Answers

I believe the last one is the right answer

Give the slope of any line that is perpendicular to the line y = -1/8 x + 5

Answers

Answer:

8

Step-by-step explanation:

To find a slope for a line that is perpendicular to another line, you simply need to take the negative reciprocal of the the original line's slope.  In this case we are already given the slope as the coefficient to x: -1/8.  The negative reciprocal of that is 8/1, or just 8.

can someone please help me answer this? i will mark you brainliest!!! i really need help plss

Answers

Answer:

3.5

Step-by-step explanation:

If you get more like this just divide the big triangle to the small one. on the same lengths. Example: on this one do 14/4 = 3.5, 10.5/3 = 3.5, 21/6 = 3.5

Hope this helps! :)

2 3/5 * 3 1/3
Just answer please

Answers

Answer: 8.66666666667

Step-by-step explanation:

Answer:

26/3 in the simplest fraction.

Which expressions have a value of 7? Select all that apply.

Answers

Answer:

G 42/6

H 2+5

K 7+0

L 7^1

Step-by-step explanation:

is someone willing to help me with my math homework? i really don’t understand :/

Answers

What is the homework?

Drugs+Kids=..................

Very tough question guys

Answers

Answer:

= desaster

Step-by-step explanation:

Can someone pls help me with this?? I’ll give brainliest!

Answers

Answer:

It's ( - 4, 5 )

Hope it's help you.... ^_^

Find the missing part.

I = 8, w = 4, h = 2

Find the diagonal (d) of the base.

Click and look at the picture fully fill in the purple box​

Answers

Answer:

The Diagonal is 4√5

How do u do this I am so confused please help!!

Answers

Answer:

x = √145

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Trigonometry

[Right Triangles Only] Pythagorean Theorem: a² + b² = c²

Step-by-step explanation:

Step 1: Identify Variables

Leg a = 12

Leg b = x

Hypotenuse c = 17

Step 2: Solve for x

Substitute [PT]:                     12² + x² = 17²Isolate x term:                       x² = 17² - 12²Exponents:                            x² = 289 - 144Subtract:                                x² = 145Isolate x:                                x = √145

Can someone please help with this.

Answers

Answer:

92

Step-by-step explanation:

Sum of 2 interior angles= exterior angle so

148=56+h

h= 148-56

The perimeter of a triangle is 108ft. The sides lengths are in a ratio of 2:3:7. How long is the shortest side?

Answers

Answer:

18ft

Step-by-step explanation:

2+3+7 = 12 (this means that 108ft is [tex]\frac{12}{12}[/tex])

The shortest side would be [tex]\frac{2}{12}, or \frac{1}{6}[/tex] of 108ft

To find this, we divide 108 by the denominator (6) to get 18ft

We would usually multiply this by the numerator when finding a fraction of an amount, but as the numerator is 1, the answer would stay as 18ft.

36 - (-4) + 5+ (-10) =

Answers

Answer:

=35

Step-by-step explanation:

Answer:

35

Step-by-step explanation:

remove parentheses, then solve

36 - (-4) + 5+ (-10) =

36 + 4 + 5 -10 // -(- turns into a plus. +(- stays the same, 10 remains negative.

35

hope this helps

Need help ASAP pls will give brainliest pls need answer fast

Answers

Answer: C

Step-by-step explanation: all other statements are true because of CPCTC theorem. Therefore, we can conclude that C is the correct answer

Answer:

C

Step-by-step explanation:

Braden bought 3 books off of Amazon.

Each book was $16.95

Shipping was $5.20

What was the total amount Braden paid for the books?

Answers

Answer:

Braden payed $66.45

Step-by-step explanation:

(16.95+5.20)x3

22.15x36

66.45

I’ll mark you brainlist I’ll mark you brainlist

Answers

Answer:

39°

Step-by-step explanation:

The equation is

3h+72+8h+95=90

11h+167=90

11h=-77

h=-7

So RGK=

8.-7+95

-56+95

39

Linear equation:- (6x+ 10) = 13
Step 1: -3–5= 13
Step 2:-3r= 18
Step 3: x=-6
Which sequence describes the inverse operations used
for steps 2 and 3 to solve the linear equation?
O the addition property of equality and then the
O the addition property of equality and then the
O the sutbtraction property of equality and then the
O the subtraction propety of equality and then the
division property of equality
multiplication property of equality
division property of equality
multiplication property of equality

Answers

Answer:

A: the addition property of equality and then the division property of equality

Step-by-step explanation:

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