if f(x) = 2x-1 what is f(4)

Answers

Answer 1
F(7) is your answer because you plug in 4 to the x so 2•4-1 you times 2 and 4, get 8 then 8-1 is 7, have a good day/night!!!

Related Questions

the area of a triangle is 162 square meters. the height is 18 meters. what is the base

Answers

1345533 is the answer because I want points

Answer:

Triangle Area = (1/2) * base * height

base = 2 * Area / height

base = (2 * 162) / 18

base = 324 / 18

base = 18 meters

Step-by-step explanation:

given the function f(x)=3x-5, for which value in the domain does f(x)=-38?

Answers

[tex]f(x) = -38\\\\\implies 3x -5 = -38\\\\\implies 3x = -38 +5 \\\\\implies 3x = -33\\\\\implies x = -\dfrac{33}{3}\\\\\implies x = -11[/tex]

Please help me with my math homework what is the answer!!!

Answers

Answer:

Step-by-step explanation:

The letters are easy enough.

y^3 determines that 3 ys are needed. y^2 is taken in by the cubed.

x^4 determines that 4 xs are needed. x^3 is part of x^4 and you don't need any more xs

12 and 42 are the parts that will cause the problem. Factor them both into prime factors

12: 2 * 2 * 3

42: 2 * 3 * 7

You need two 2s.

You need one 3

You need one 7

LCD = 2 *2*3 * 7 = 84

HELP PLEASE!!!!!!!!!!!!

Answers

The answer to this question would be B.35

HELP PLEASEEEEEE ill give u 30 point plays brainly u dont even have to show ur work

Answers

Answer:

1) 32/7

2) 7/5

3) 13/4

4) 32/15

5) 19/2

6) 57/14

Step-by-step explanation:

Use a calculator and/or multiple the coefficients with the value of the denominator then add it to the numerator and multiply.


Which graph represents a function?

Answers

Answer: B

Step-by-step explanation:

f (x) = 3x - 2 - g (x) = 2x + 1

Answers

Answer:

Step-by-step explanation:

The answer is easy it’s 24

what is 8 1/5 as a improper fraction

Answers

Answer:

41/5

Step-by-step explanation:

So the answer is that 8 1/5 as a decimal is 8.2.

We convert it to an improper fraction which, in this case, is 41/5 and then we divide the new numerator (41) by the denominator to get our answer.

Which explanation correctly tells whether these ratios are equivalent and why?

Yes because 3 x 2 = 6 and 14 x 2 = 28.

No because there is no scale factor to get from 3 to 14.

Yes because 3 x 5 = 14 and 6 x 5 = 28.

No because when I use the cross products, 3 x 14 = 42 and 6 x 28 = 168.

Answers

Answer:

Option A (Yes because 3 x 2 = 6 and 14 x 2 = 28.) is correct.

Step-by-step explanation:

This is because if we simplify 3/6 and 14/28, both of them will get 1/2. This means that only A and C are possible.

=> Option A is correct because 3 x 2 does equal 6 and 14 x 2 does equal 28.=> Option C is incorrect because 3 x 5 does not equal 14 and 6 x 5 does not equal 28.

Hoped this helped.

[tex]BrainiacUser1357[/tex]

what are some expressions that are equivalent to

2(5n).

Answers

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

[tex]\large\text{Gu\textbf{id}\textsf{e}}\bf\downarrow[/tex]

[tex]\large\textbf{2 negatives = positive}\\\large\textbf{2 positives = positive}\\\large\textbf{1 negative \& 1 positive = negative}\\\large\textbf{1 positive \& 1 negative = negative}\\\\\large\text{Negatives are BELOW 0}\\\large\text{Positives are ABOVE 0}\\\\\large\textsf{Negatives are on the LEFT side of zero.}\\\large\textsf{Positives are on the RIGHT side of zero.}[/tex]

[tex]\huge\textsf{-2(5n) \boxed{\rightarrow} \bf -10n}\\\\\\\\\huge\boxed{\rightarrow\text{-2n + (-2n) + (-2n) + (-2n) + (-2n)}}\\\huge\boxed{\rightarrow \text{\bf -2n - 2n - 2n - 2n - 2n}}\\\huge\boxed{\rightarrow{\text{-4n - 2n - 2n - 2n}}}\\\huge\boxed{\rightarrow \text{-6n - 2n - 2n}}\\\huge\boxed{\rightarrow \text{\bf -8n - 2n}}\\\huge\boxed{\rightarrow \boxed{\text{ -10n}}}[/tex]

[tex]\huge\text{\bf -5(2n)}\\\huge\boxed{\rightarrow \text{-10n}}[/tex]

[tex]\huge\boxed{\text{\bf Therefore, your answers \underline{\underline{could}} be: }}\\\huge\boxed{\bullet \textsf{ -2n - 2n - 2n - 2n -2n}}\huge\checkmark\\\huge\boxed{\bullet \textsf{ -8n - 2n}}\huge\checkmark\\\huge\boxed{\bullet \textsf{ -5(2n)}}\huge\checkmark[/tex]

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

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

A train accelerates at an average rate of 0.33 meter per second squared, and the
train starts from a complete stop. Find how long it will take the train to reach its
maximum velocity of 48 meters per second.

Pls someone help ASAP

Answers

Answer:

I don't know

Step-by-step explanation:

please mark me as the brainlist

Plz, Help Me Quickly!!
I will mark Brainliest for the best answer.

Answers

Answer:

help you with what

Step-by-step explanation:

What is the problem?

Simplify, and Write answer without parentheses

Answers

Answer:

w^18

Step-by-step explanation:

exponents are multiplied when there is a parenthesis between them

Answer:

[tex]w^{18}[/tex]

Step-by-step explanation:

the "power to a power" rule allows you to multiply those two exponents. [tex](x^{a} )^{b} =x^{ab}[/tex] is the formula for this rule. in this question, x is w, a is 3, and b is 6. we can multiply the 3 and 6 and get 18 and keep the base the same.

Write as an equation/inequality: "The product of four and a number is the sum of the number and twelve."​

Answers

Answer: 4x = x+12

Step-by-step explanation:

Find the new amount given the original amount and the percent of change.
$7; 10% increase
The new amount is

Answers

Answer: €7.7

Step-by-step explanation: 7 x 110% = 7 x 1.1 = 7.7

Write the following numbers in order from least to greatest: -5.6, 7.95, 2.06, 0, -6.89

Please help :)

I think I know it but can someone help me double check​

Answers

Answer:

-6.89, -5.6, 0, 2.06, 7.95

Step-by-step explanation:

Hope this helps!

-6.89.-5.6,0,2.06,7.95

Negatives are always lesser values than positives.

Find the volume of the sphere. Use 3.14 for pi please help..

Answers

Answer and Explanation: The volume of the sphere is 1.44×10^6 cubic inches(to be specific, 1,436,755 cubic inches). The explanation, which is the formula for the volume of a sphere, is in the image.

Answer:

V≈1.44×106

Step-by-step explanation:

hope this helps

please help me asap

ty..

Answers

Answer:

Y = 10x + 20

Step-by-step explanation:

sorry if im wrong

Answer:

y = 2x - 4

Step-by-step explanation:

10x - 5y = 20

Subtract 10x both sides

-5y = 20 + (-10x)

Divide by -5

y = -4 + 2x

y = 2x + (-4)

solve the equations 3/4x = 21

Answers

What you need to do is divide 21 by 3/4 and when you do divide it you should get 28 as a whole.
Answer:x = 28Step-by-step explanation:3/4x = 21=> 1/4x = 7=> 4 x 1/4x = 7 x 4=> x = 28Conclusion:

Therefore, the answer is 28.

Hoped this helped.

[tex]BrainiacUser1357[/tex]

I'm not sure if this s corrct. Can you guys check it for me?

Answers

I think it’s right but someone else might need to check

Answer:

YUP!

Step-by-step explanation:

Let's take the 60 degrees angle first. 180-60=120

3x+x=4x

120/4=30

So you were right!

:))

Pablo has $5,483 in a savings account. The interest rate is 5%, compounded annually.

To the nearest cent, how much will he have in 3 years?

(compound interest formu)

Answers

Answer:

$6347.26

Step-by-step explanation:

Given:

Initial amount P = 5483Interest rate r = 5% or 0.05Compound number n = 1Time t = 3 years

Find the total amount in 3 years:

[tex]A = P(1+r/n)^{nt}[/tex][tex]A = 5483*(1+0.05/1)^{1*3}=5483*(1.05)^3 = 6347.26[/tex]

[tex]\tt\red{\overbrace{\underbrace{\tt\color{orange}{ANSWER}}}}[/tex]

Here we've been given,

Principal amount (p) = $5843

Compound number (n) = 1

Rate of Interest (r) = 5% = 5 × 1/100 = 0.05

Time (t) = 3 years

A = ?

The standard formula for Compound interest (C.P) is given by,

[tex]:\implies\tt{A = p( { \frac{1 + r}{n} )}^{n \times t} } \\ \\ \\ :\implies\tt{A = 5483( { \frac{1 + 0.05}{1}) }^{1 \times 3} } \\ \\ \\ :\implies\tt{A = 5483 \times {1.05}^{3} } \\ \\ \\ :\implies\tt{A = 6347.26}[/tex]

I'm bad at math helpppppp

Answers

Answer:

2x + y = 18

y = 4x - 12

x = 5,  y = 8

Step-by-step explanation:

x = 1st number

y = 2nd number

We can use the substitution method as we know what 'y' equals; that value will get plugged in for 'y' in the first equation as follows:

2x + 4x - 12 = 18

6x - 12 = 18

6x = 30

x = 5

y = 4(5) - 12 which is 20-12 or 8

y = 8

The sum and difference of two positive numbers are 15 and 5 respectively. Find the numbers.​

Answers

[tex]x+ y =15~~...(i)\\\\x-y = 5~~...(ii)\\\\\text{(i) +(ii):}\\\\x+y+x-y = 15+5\\\\\implies 2x = 20\\\\\implies x = \dfrac{20} 2 = 10\\\\\text{(i)-(ii):}\\\\x+y -x +y = 15 -5\\\\\implies 2y = 10\\\\\implies y=\dfrac{10}2 = 5\\\\\text{Hence the numbers are 10 and 5}[/tex]

2. List the like terms in each of the following:
i) 6a , 13b2 , -2a , 2a2 , -b2 , bc

Answers

13b2 &-b26a & -2a

i m not sure about the answer ...


-
Drag the steps for drawing a graph of the function f(x) = 2(x+4)2 - 3 to
arrange them in the correct order. It might help you to draw the graph as
you arrange the steps.
Plot the vertex (-4,-3).
Draw the axis of symmetry x=-4.
Reflect the points over the axis of symmetry and plot (-5, -1), (-6,5), and (-7,15).
Apply the 2x? pattern, from the vertex go right 1 up 2 and plot (-3,-1).
Apply the 2x² pattern again, from the vertex go right 2 up 8 and plot (-2,5).
Apply the 2x² pattern a 3rd time, from the vertex go right 3 up 18 and plot (-1,15)
Draw a U shaped parabola

Answers

The shape of the graph of quadratic functions is the shape of a parabola.

The steps for drawing a graph of the function f(x) = 2·(x + 4)² - 3 arranged in the correct order are;

(a) Plot the vertex (-4, -3)(b) Apply the 2·x² pattern, from the vertex go right 1 up 2 and plot (-3, -1)(c) Apply the 2·x² pattern again, from the vertex go right 2 up 8 and plot (-2, 5)(d) Apply the 2·x² pattern a 3rd time, from the vertex go right 3 up 18 and plot (-1, 15)(e) Draw the axis of symmetry x = -4(f) Reflect the points over the axis of symmetry and plot (-5, -1), (-6, 5), and (-7, 15)(g) Draw a U shaped parabola.

Reasons:

The given function is; f(x) = 2·(x + 4)² - 3

The function is given in the vertex form; f(x) = a·(x - h)² + k

Therefore, the vertex, (h, k) = (-4, -3)

Step (a);

The vertex can be plotted on the graph

Plot the vertex (-4, -3)

Step (b);

Given that the quadratic term is 2·x², the pattern that can be used for the points from the vertex is therefore, 2·x²

From the vertex (-4, -3) apply the 2·x² pattern by going to the right 1 unit and  up 2 × 1² = 2 units to get the point (-4 + 1, -3 + 2) = (-3. -1)

Apply the 2·x² pattern, from the vertex go right 1 up 2 and plot (-3, -1)

Step (c);

To get the next point, the 2·x² pattern is applied with x = 2, to the vertex to get; (-4 + 2, -3 + (2×2²)) = (-2, 5)

Apply the 2·x² pattern again, from the vertex go right 2 up 8 and plot (-2, 5)

Step (d);

A third point on the graph relative to the vertex is obtained again by applying the 2·x² pattern again to the vertex with x = 3, to get;

(-4 + 3, -3 + (2 × 3²)) = (-1, 15)

Apply the 2·x² pattern a 3rd time, from the vertex go right 3 up 18 and plot (-1, 15)

Step (e);

The axis of symmetry can be drawn with a vertical line passing through the vertex, which is the line, x = -4

The line x = -4 can be drawn on the graph next

Draw the axis of symmetry x = -4

Step (f);

The points obtained relative to the vertex (-3, -1), (-2, 5), (-1, 15) can reflected about the axis of symmetry x = -4, to get;

(-3, -1) [tex]\underrightarrow {R_{(x = -4)}}[/tex] (-5, -1)

(-2, 5) [tex]\underrightarrow {R_{(x = -4)}}[/tex] (-7, 5)

(-1, 15) [tex]\underrightarrow {R_{(x = -4)}}[/tex] (-7, 15)

Reflect the points over the axis of symmetry and plot (-5, -1), (-6, 5), and (-7, 15)

Step (g);

The parabola that is U shaped can be drawn from the points plotted in the steps above.

Draw a U shaped parabola

Learn more about drawing the graph of a quadratic function here:

https://brainly.com/question/6353430

Richard wants to paint the top and sides of the block column. What is the surface area he needs to cover?



592 sq. ft
512 sq. ft
960 sq. ft
800 sq. ft

Answers

592 sq. ft
Hope this helps!

A car travels at an average rate of speed of 60 miles per hour for 72 hours. How many miles does
this car travel?

Answers

Answer:

4320 miles

Step-by-step explanation:

distance= speed× time

60 ×72= 4320

If (6^2]^p = 6^10, what is the value of p?
A.) 2
B.) 3
C.) 4
D.) 5

Answers

If u raise a power to another power, then u multiply the powers. In this case, u can simplify to 6^2p =6^10

Now you have like bases, so you can set the powers equal to each other. So now, 2p=10. Now p=5

Please answer with an explanation (polynomials)

Answers

Answer:

[tex]-8p^2+10p-3[/tex]

Step-by-step explanation:

[tex](-1+2p)(3-4p)[/tex]

Distribute

[tex]-1(3-4p)+2p(3-4p)[/tex]

[tex]-3+4p+6p-8p^2[/tex]

Then you will organize it into standard form and combine the like terms

[tex]-8p^2+6p+4p-3[/tex]

[tex]-8p^2+10p-3[/tex]

Hope this helps!

please help with this

Answers

Answer:

v = 32

Step-by step explanation:

Step-1: Subtract 15 both sides

⇒ v/4 + 15 = 23

⇒ v/4 + 15 - 15 = 23 - 15

⇒ v/4 = 8

Step-2: Use cross multiplication

⇒ v/4 = 8

⇒ v = 8 × 4 = 32

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