Question 13 of 23
If f(x) = 3x - 15, what is f(4)?
A. 3
O B. -8
O C. 12
O D. -3

Answers

Answer 1

Answer:

f(4) = 3×4 - 15

f(4) = 12-15 = -3

Answer : D. -3

...........

Answer 2

Answer:

D.-3

Step-by-step explanation:

f(4)=3•4-15

=12-15

=-3


Related Questions

what is the answer to this equation. x-8/3=3

Answers

Answer:

x  −  1  ⋅  8 /3  =  3

Solve

Step-by-step explanation:

Multiply the numbers

x−1⋅3/8​=3

x - 3/8 = 3

Add  8 /3  to both sides of the equation

− 8 /3 = 3

x−3/8​=3+ 8/ 3 = 3

Simplify

Solution

= 1 7/ 3

there you go hope this helped

Given g(x) = -5x + 5, solve for 2 when g(x) = 0.

Answers

Answer:

Step-by-step explanation:

g(x) = 0

0=-5x+5

5x=5

x=1

Answer:

x = 5

Step-by-step explanation:

given:

[tex]g(x) = -5x + 5[/tex]

solve for x, when:

[tex]g(x) = 0[/tex]

replace x with 0

~~~~~~~~~~~~

➡️ [tex] x = -5(0) + 5 [/tex]

➡️ [tex] x = 0 + 5[/tex]

➡️ [tex]x = 5 [/tex]

(b) True or False?
Statement
True False
Х
Some rational numbers are not whole numbers.
o
Some irrational numbers are integers.
All integers are rational numbers.
o
No irrational numbers are whole numbers.
o

Answers

Answer:

I put the answers in order.

True

False

True

False

(Hope this helped☺️! )

Solve for x: 4 - (x + 2) < -3 ( x + 4)
(9th grade algebra 1)

Answers

Answer:

[tex]x < -7[/tex]

Step-by-step explanation:

[tex]4 - (x+2) <-3(x+4)\\\\4 - x -2 < -3x -12\\2 -x < -3x-12\\-x < -3x-14\\2x < -14\\x < -7[/tex]

Please someone help I’m stuck with this question please help and show work please

Answers

Answer:

I would think A.

Step-by-step explanation:

Let me explain real quick. A basically states the possible weights, or the y of the function, which include serving size and full bag. B is full numbers which cannot be used in a bag. C and D look like they would he in a perfect form however they are not showing the possible weights for both serving and bag.

1. a number raised to the second power
2. (of some number N) is the number which, when squared, gives you N
3. the superscript number in an exponential expression; tells how many times a factor is repeated
4. (of some number N) is the number which, when cubed, gives you N
5. a number raised to the third power
6. the value of a base and exponent
Squared
Exponent
Cubed
Power
Cube root
Square root

Answers

Answer:

1 - squared

2- square root

3-exponent

4-cubed root

5-cubed

6-power

How is proportional reasoning used to interpret distances on maps?

Answers

Answer:

It shows how a dimension in a scale drawing is related to the actual object. A map is a scale drawing. The measurements on a map are in proportion to the actual distances. If 1 inch on a map equals an actual distance of 2 miles, the scale is 1 inch = 2 miles

hope it helped!

URGENTTTT PLS PLS PLS PIFHCHIDFCHI. How do you write 5x^2-14-3x2 in standard form?

Answers

5x^2-3x^2= 2x^2

2x^2-14

2(x^2-7)

You are going to have a swimming pool put your back yard this summer. The dimensions of the pool are going to be 15 ft by 30 ft. There is going to be a concrete walkway around the outside of the pool, but they are not sure how wide it will be. The design of the pool, including the walkway, is shown below.

Answers

The perimeter of a shape is the sum of the all visible side lengths of the shape. The perimeter of the pool including the walkway is 90 + 8x

Given that:

[tex]Length = 15[/tex]

[tex]Width = 30[/tex]

Let the width of the walkway be x.

The dimension of the pool including the walkway is calculated by adding the dimension of the pool to the width of the walkway (on both sides):

So, we have:

[tex]Length = 15 + x + x[/tex]

[tex]Length = 15 + 2x[/tex]

[tex]Width = 30 + x + x[/tex]

[tex]Width = 30 + 2x[/tex]

The perimeter (P) of the walkway is then calculated using:

[tex]P = 2 \times (Length + Width)[/tex]

This gives:

[tex]P = 2 \times (15 + 2x + 30 + 2x)[/tex]

Collect like terms

[tex]P = 2 \times (15 + 30+ 2x + 2x)[/tex]

[tex]P = 2 \times (45+ 4x)[/tex]

Open brackets

[tex]P = 2 \times 45+ 2 \times 4x[/tex]

[tex]P = 90+ 8x[/tex]

Hence, the perimeter of the pool including the walkway is 90 + 8x (see attachment)

Read more about perimeters at:

https://brainly.com/question/6465134

COULD A KIND SOUL PLEASE PLEASE PLEASE HELP ME???!!!!!!!!!!!

triangle RST is reflected across the line y = x to form triangle R’S’T’. Find the coordinates of the points R’, S’ and T’.

show how you go the answer so I can see if it makes sense!!!

Answers

Answer:

R=(-1,2), T=(-7,4) S=(-2,8)

Step-by-step explanation:

The line y=x is a diagonal line veering to the left, since I can't draw it I'll give you a link on an actual digram of a triangle getting reflect across y=x. But, I just like to do this, if for example Q=(10,-3), I just exhange the negative sign to the left, so it would equal Q"=(-10,3) (Q" means the new modified Q).

The link thingy=https://www.quora.com/What-does-it-mean-to-reflect-over-the-y-x-line

Hopes this helps (:

The period of a compound pendulum is given by T=2π√(h²+k²/gh) express k in terms of T,h and g​

Answers

Answer:

qss-qvcj-kwr join guys iam bored

If g( 2x + 1) = 4x-3 then find f(x) and f(-2).​

Answers

Answer:

Dont know if this is correct but:

f(x) = 4x-3

f(-2) = 4(-2)-3

f(-2) = -11

Step-by-step explanation:

The difference of F and 5 times G is the same as 25 minus f

Answers

Step-by-step explanation:

(5×G)-F=25-F

I hope it helped U

stay safe stay happy

HELP PLEASE ITS DUE TONIGHT “Find the measure of angle B”

Answers

Answer:

43°

im sure the answer is correct

Answer:

m∠b = 43°

Step-by-step explanation:

The image shown shows vertical angles. By the definition of vertical angles, quote:

"Angles opposite of each other when two lines cross are always equal", therefore, if one of the vertical angles is 43°, that implies that m∠b = 43°, by definition of vertical angles.

~

what expression is equivalent to (1/16)^-4

Answers

16^4  Hope this helps.

Answer:

16 ⁴

Step-by-step explanation:

use a -n= (1/a)n

(1/16 - ⁴= ( 16/ 1 )

=16 ⁴

The length of a rectangle is 2x + 4 and the width is x + 8. If the perimeter of the rectangle is 96, use the value of x to find the length and width of the rectangle.​

Answers

Hey there! I'm happy to help!

The formula for the perimeter of a rectangle is 2L+2W=P where W is the width and L is the length. This is because we have our two sides that are lengths and our two sides that are widths (different values) and we add them together to see what the distance around the whole rectangle is.

So, let's insert these values into the equation.

2(2x+4)+2(x+8)=96

We use the distributive property to remove the parentheses (which is us multiplying our equations for length and width by two).

4x+8+2x+16=96

We combine the like terms.

6x+24=96

We subtract 24 from both sides.

6x=72

Divide both sides by 6.

x=12

Now that we have our value of x, we can plug it into our length and width equations to find those values.

LENGTH:

2x+4

2(12)+4

24+4

28

WIDTH:

x+8

12+8

20

So, our length is 28 and our width is 20.

Have a wonderful rest of your day and keep on learning! :D

a solid sphere is cut into 3 equal wedges. the volume of each wedge is V=4/9π^3. solve the formula for r

Answers

[tex]\\ \qquad\quad\sf{:}\dashrightarrow V=\dfrac{4}{9}πr^3[/tex]

It is one third of the solid. sphere

[tex]\\ \qquad\quad\sf{:}\dashrightarrow V_{(Sphere)}[/tex]

[tex]\\ \qquad\quad\sf{:}\dashrightarrow 3\left(\dfrac{4}{9}πr^3\right)[/tex]

[tex]\\ \qquad\quad\sf{:}\dashrightarrow \dfrac{4}{3}\pi r^3[/tex]

Now

[tex]\\ \qquad\quad\sf{:}\dashrightarrow \pi r^3=\dfrac{3V}{4}[/tex]

[tex]\\ \qquad\quad\sf{:}\dashrightarrow r^3=\dfrac{3V}{4\pi}[/tex]

[tex]\\ \qquad\quad\sf{:}\dashrightarrow r=\sqrt[3]{\dfrac{3V}{4\pi}}[/tex]

Step-by-step explanation:

hmmm.

the other answer says the volume of a wedge is

4/9 × pi×r³

but I read here only

4/9 × pi³

so, what is correct ?

if I assume my reading is correct, then the solution is actually

4/9 × pi×r³ = 4/9 × pi³

pi×r³ = pi³

r³ = pi²

[tex]r = \sqrt[3]{ {\pi}^{2} } [/tex]

and that would mean

r ≈ 2.145

What are the coordinates of A' after a 180 degree rotation about (-5, 3)?

Answers

Answer: (5,3)

Step-by-step explanation:

A 180 degree rotation will take you to sector b which is (+,+), so I knew it was going to be positive.

Hello good student.


-5,3)
(+5,-3)

In the similarity
transformation of AACB
to AEFD, AACB was dilated by
a scale factor of [?], reflected
across the [ ], and moved
through the translation [ ].
HELP HELP HELO NOW NOW PLEASE ILL GIVE BRAINLEISTETWBEBEJHEUEJ

Answers

Therefore, In the similarity transformation of ΔACB to ΔEFD, ΔACB was dilated by a scale factor of 2, reflected across the y-axis, and moved through the translation 2 units

What is graph transformation?

The technique of altering an existing graph or graphed equation to create a different version of the following graph is known as graph transformation. In particular, the change of algebraic equations, it is a typical kind of algebraic problem.

Graphs can be extended, rotated, inverted, or any combination of these transformations; they can also be translated or moved along the xyxy plane. The formulas "move the function f(x)f(x) by cc units in some direction," "stretch the function f(x)f(x) by cc units," and "rotate the function f(x)f(x) by xx units about the xx-, yy-, or zz-axis" are frequently used in mathematical issues. In every instance, the transformation has specific, calculable effects on the underlying function.

Since the triangle ABC and DEF is similar

So we can write,

DE/BC=EF/AB=FD/CA

scale factor =Length of CA/length of DF

                     =6/3

                      =2:1

Reflected at y axis i.e x=0

and raised by 2 units.

Therefore, In the similarity transformation of ΔACB to ΔEFD, ΔACB was dilated by a scale factor of 2, reflected across the y-axis, and moved through the translation 2 units

Learn more about graph transformation,

https://brainly.com/question/4025726

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Find the unknown sizes of the angled.​

Answers

Step-by-step explanation:

c = 65(being vertically opposite angle)

a + 65 = 180 (being linear pair)

so, a = 115

b = a(being vertically opposite angle)

so, b = 115

Answer:

[tex]thank \: you[/tex]

If the linear function is f(x) = 3x + 10, then the value of 3 could represent:

O The initial investment.
O The starting point.
O None of these choices are correct.
O The average change.
O The line of reflection.

Answers

Answer:

3 is the gradient ryt?

Step-by-step explanation:

so Ummm C?

How many 10- digit number are restricted in the Atlanta area

Answers

Answer:

320,400

Step-by-step explanation:

80,100 restricted numbers x 4 area codes

Interpret the following exponential function:
y = 6 (1.07) Superscript x
What is the growth/decay factor? What is the y-intercept?
a.
Decay factor is 6; y-intercept is 1.07
b.
Decay factor is 1.07; y-intercept is 6
c.
Growth factor is 6; y-intercept is 1.07
d.
Growth factor is 1.07; y-intercept is 6

Answers

Answer:

d. Growth factor is [tex]1.07^{x}[/tex] ; y-intercept is 6

Step-by-step explanation:

I. When y = 6([tex]1.07^{x}[/tex])

If growth factor means

          y.value will increase if x.value is increase

Prove Given x = 1, 2

 y = 6(1.07)^1

      = 6.42

  y = 6(1.07)^2

        = 6.866

That makes 1.07 is growth factor

Ari lives 4/5 of a mile from the park she has already walked 3/4 of the way to the park. How far has ari walked

Answers

3/4 of 4/5 = 3/4 x 4/5 = 12/20 = 3/5 of a mile (= 1056 yards)

Which choice is equivalent to the product below when x > 0?
Square root of 2/x time square root of x^2/8

Answers

Answer:

A.

[tex] \sqrt{x } \div 2[/tex]

is the answer

The choice which is equivalent to [tex]\sqrt{\frac{2}{x}}\cdot\sqrt{\frac{x^2}{8}}[/tex] is given by (A) [tex]\frac{\sqrt{x}}{2}[/tex].

What is expression?

Expression is a mathematical term that involves variables, numbers and other mathematical quantities and operations or combinations of them.

The given expression is [tex]\sqrt{\frac{2}{x}}\cdot\sqrt{\frac{x^2}{8}}[/tex]

Calculating the expression we get,

[tex]\sqrt{\frac{2}{x}}\cdot\sqrt{\frac{x^2}{8}}=\sqrt{\frac{2}{x}\cdot\frac{x^2}{8}}=\sqrt{\frac{x}{4}}=\frac{\sqrt{x}}{2}[/tex]

So the expression equals to [tex]\frac{\sqrt{x}}{2}[/tex].

Hence the correct option is (A).

Learn more about Expression here -

https://brainly.com/question/723406

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Where would 7 be located on the number line below

Answers

Answer:

we can check the position of √7 is btw p and q

because square of 2 is 4 while square of 6 is 36

and 7 lies btw 4 and 36 therefore √7 lies btw p and Q

Answer:

OPTION C BETWEEN P AND Q

As 7 is equals to 2.78approx.

Step-by-step explanation:

..

Hunter is going to graph the ordered pairs that are represented by this table on a coordinate plane.

x
–7
–3
0
1
5
9
y
4
0
2
6
0
–2

In Hunter’s graph, how many points should lie on the y-axis?
0
1
2
3

Answers

Answer:

one

Step-by-step explanation:

Any point where x = 0 will fall on the y axis. The y values do not matter for this question.

Answer:

1

Step-by-step explanation:

2 Jessica re the same number of books each month. Write an expression to represent
the number of books Jessica reads in 2 years.

Answers

Answer:

The answer is Jessica reads 24b books in 2 years where b is the number of books she reads each month.

Step-by-step explanation:

First, decide on your variable. You don't know how many books Jessica reads each month, but you know every month it is the same.

Let b equal the number of books Jessica reads each month.

Next, write a variable expression using b. In one month Jessica reads b books. In 2 months Jessica reads 2b books. The question asks for an expression that represents the total number of books Jessica reads in 2 years. There are 12 months in a year so there are 24 months in 2 years. So your expression is

24b

Consider the equation:
f(x) = -3x - 6
What is the ordered pair for x = 3?
(-3, 3)
(3, -3)
(-15, 3)
(3, -15)

Answers

Answer:

the last one

Step-by-step explanation:

find the product of
[tex]63 \times 0 \times ( - 7)[/tex]

Answers

Answer:

0

Step-by-step explanation:

63 * 0 is 0. 0 * (-7) is also 0.

Anything multiplied by 0 is 0, no matter how big the number is, or how many numbers there are.

Hope this helps :)

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