evaluate the expression 2x^3 - 14 when x=2

Answers

Answer 1

Answer:

-2

Step-by-step explanation:

2(2)*3-14

4*3-14

12-14

-2


Related Questions

PLS HELP !! ITS DUE tommorow!!

Answers

In the given square, the values of f and g are equal that is 4√3cm.

What is a square?A square is a regular quadrilateral in Euclidean geometry, which means that it has four equal sides and four equal angles. It can alternatively be explained as a rectangle with two neighboring sides that are of equal length.The square's angles are at a straight angle or 90 degrees. The square's diagonals are also equal and split at a 90-degree angle.

So, the values of f and g are:

From the given diagram we know that ABCD is a square.So, all sides are the same.

The area of ABCD is 48cm².

Now, calculate for sides as follows:The formula for the area of the square: A = s²

Then,

A = s²48 = s²s = √48s = √2×2×2×2×3s = 2×2√3s  = 4√3

Since f and g are 2 sides of the square, their values are 4√3cm.

Therefore, in the given square, the values of f and g are equal that is 4√3cm.

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Jared has earned 23% of the $52 he needs to buy a new jacket. Find 23% of $52.

Which expression can you use to find 23% of 52?
0.23 × 52
23% of $52 is $
11.96
.
An easy way to check your answer is to use the friendly
50%
and divide 52 by
2
to get
13
.
Am i right???

Answers

Answer:

yeah i think so

Answer:

$11.96

Step-by-step explanation:

Now we have to,

→ find the 23% of $52.

Let's solve the problem,

→ 23% of $52

→ (52/100) × 23

→ 0.52 × 23

→ $11.96

The similar expression is,

→ 0.23 × 52

→ $11.96

Hence, answer is $11.96.

cheyenne needs to cut a piece of paper so that she has exactly 1/3 of it. if the length of the paper is 11 inches, how long will be the piece that she cuts?

Answers

The lengths of the piece she should cut is = 3  2/3

What is unitary method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units. What can be values and units.Let's say you go to the store to buy six apples. You are informed by the shopkeeper that he is offering 10 apples for Rs 100. In this instance, the value and the units are the price of the apples.Recognizing the units and values is crucial when using the unitary technique to a problem.Always write the items that need to be computed on the right side and the things that are known on the left side to simplify things. We are aware of the quantity of apples and the amount of money in the aforesaid problem.

acc to our question-

1/3 of 11=1/3*11=11/3=3 2/3

hence,The lengths of the piece she should cut is = 3  2/3

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Complete the function table. Function: t = 5d − 2

Answers

The table for the linear equation is summarized below:

d                         t

3                        13

4                        18

5                        23

6                        28

How to complete a table related to a linear function

In this problem we have a two-column table associated to a linear function, the first column of the table represent a set of values of the domain (d) of the function and the second column of the table is for the set of values of the range (t) of the same. We need to fill the second column of the table with the values associated with the range:

d = 3

t = 5 · 3 - 2

t = 15 - 2

t = 13

d = 4

t = 5 · 4 - 2

t = 20 - 2

t = 18

d = 5

t = 5 · 5 - 2

t = 25 - 2

t = 23

d = 6

t = 5 · 6 - 2

t = 30 - 2

t = 28

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Barney just bought stock in Purple Dinosaur Industries. He paid a total of $7,380. The price of the stock is $12 for one share. How many shares did he buy?

Answers

The number of shares he buy is $615.

Given that Barney just bought stock in Purple Dinosaur Industries and he paid a total of $7,380 and the price of the stock is $12 for one share.

We want to find the number of shares Barney buys.

The total amount barney should pay is $7380.

The price of the stock for one share is $12.

The total number of shares barney buy is 7380/12=615.

Hence, the number of shares barney should buy when he paid a total $7380 and the price of stock for one share is $12 is $615.

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its easy but im lazy please helppppp

Answers

y=1/58x

because in 3 hours its 174 miles.

let y=miles

x=time

so 174y=3x

divide by 3 on both sides

58y=x

isolate y by dividing by 58 on both sides

therefore you get the answer

(sec(t)-cos(t))/sin(t)

Answers

The simplification of the trigonometric expression (sec(t) - cos(t))/sin(t) is; tan (t)

How to simplify trigonometric ratios?

There are different trigonometric ratios such as;

sin x

tan x

cos x

sec x

cosec x

cot x

Now, we want to simplify the trigonometric expression;

(sec(t) - cos(t))/sin(t)

We know that;

sec (t) can be written as 1/cos t

Thus;

(sec(t) - cos(t))/sin(t) = [(1/cos t) - cos t]/ sin t

= (1/(sint cos t) - cos t/ sin t

= (1 - cos²t)/(sin t cos t)

= sin²t/(sin t cos t)

= sin t/cos t

= tan t

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Which equation represents this sentence?

Half the difference of a number and 5 is−2.

Responses

12(5−x)=−2
1 half left parenthesis 5 minus x right parenthesis equals negative 2

12x−5=−2
1 half x minus 5 equals negative 2

12(x−5)=−2
1 half left parenthesis x minus 5 right parenthesis equals negative 2

5−12x=−2

Answers

The equation which represents the sentence given; Half the difference of a number and 5 is−2 is; 1/2(x - 5) = -2; 1 half left parenthesis x minus 5 right parenthesis equals negative 2.

Word phrases from Algebraic expressions.

It follows from the task content that the expression which best represents the given algebraic expression is to be determined.

First, the difference of a number, x and t is represented as; (x - 5).

Hence, the word phrase; Half the difference of a number and 5; is best represented algebraically as; 1/2(x - 5).

Ultimately, the whole word phrase; Half the difference of a number and 5 is -2 can best be represented as; 1/2(x - 5) = -2.

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(b) Work out the value of (2.3 × 10³) × (5.9 × 105)
Give your answer in standard form.

Answers

Answer: 1424850

Step-by-step explanation:

2.3 x 10³ = 2300

5.9 x 105 = 619.5

2300 x 619.5 = 1424850

Pls thank and rate <3 (and branliest if ok with u :)))

how many cards must be selected from the standard 52 deck to guarantee that at least 3 cards of the same suit are chosen

Answers

Nine (9) cards must be selected from the standard 52 deck to guarantee that at least three cards are chosen from the same suit.

What is the pigeon-hole approach?
According to the pigeonhole principle, at least one container must hold more than one item if n things are placed into m containers, where n > m. For instance, if one possesses three gloves but none of them are ambidextrous or reversible, then there must be at least two right-handed gloves or at least two left-handed gloves since there are three items but only two categories of handedness. It is possible to establish potentially surprising consequences using this seemingly obvious assertion, a type of counting argument.

The standard 52 deck has 4 suits of 13 cards each, thus as per n pigeons need to be extracted from p = 4 pigeon-holes; as per established literature above.
∴ [(n - 1) / p] + 1 = 3 ⇒ [(n - 1) / 4] + 1 = 3 ⇒ n - 1 = 8 ⇒ n = 8 + 1 ⇒ n = 9
Therefore, nine (9) cards must be selected from the standard 52 deck to guarantee that at least three cards are chosen from the same suit.

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Is it a, b, or c, and if A what goes in the box

Answers

Answer is (a) The solution set is {x | (-∞,-7)∪(5,12)}.

Given equation,

[tex]\frac{(x-5)(x+7)}{x-12} < 0[/tex]

For values (-∞,-7)

equation stands true

For values (-7,5)

equation stands false

For values (5,12)

equation stands true

For values (12,∞)

equation stands false

Hence, x ∈ (-∞,-7)∪(5,12).

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mary invests £12000 in a savings account.

the account pays 1.5% compound intrest per year.

y is inversely proportional to x.

when y=7, x=9

a) work out an equation connecting y and x.

b) work out the value of y when x=21.

pls show step by step working out.

Answers

Using a proportional relationship, it is found that:

a) The equation is: y = 63/x.

b) When x = 21, the numeric value is of y = 3.

What is a proportional relationship?

A proportional relationship is a special case of a linear function, with slope represented by the constant of proportionality of k and intercept of 0.

When the two variables are inversely proportional, we have a inverse proportional relationship, in which the output variable y is obtained by the division of k by the input variable x, as follows:

y = k/x.

For this function, when y = 7, x = 9, hence the constant is obtained as follows:

7 = k/9

k = 9 x 7

k = 63.

Hence the equation is:

y = 63/x.

The numeric value of the function when x = 21 is given as follows:

y = 63/21 = 3.

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Find the perimeter of \triangle PQR△PQR. Round your answer to the nearest tenth if necessary. Figures are not necessarily drawn to scale.

Answers

154.5

Step-by-step explanation:

left triangle and right triangle has the same degree.

M to Q 107/2 = P to R 53.5

O to N 110/2 = R to Q 55

Find X

M to N 92/2 = P to Q 46

Perimeter- 53.5+ 55+ 46= 154.5

8x + 24 I was solutions​

Answers

Step-by-step explanation:

8x + 24 is a simplified expression.

It is not an equation, so it can't be solved.

There are two terms in 8x + 24, 8x and 24.

The two terms are unlike terms, so they cannot be combined together.

What is wrong I need help
I don’t understand it

Answers

Answer:

Step 2 is incorrect

Step-by-step explanation:

Step 2 is where you are distributing out -5. Step 2 should be distribution rather than division property of equality.

Find the initial population size

Answers

The numeric values for the population function are given as follows:

Initial population: 49 individuals.Population after eight years: 292 individuals.

How to find the numeric value of a function or of an expression?

To obtain the numeric value of a function or of an expression, each instance of the input variable in the function or in the expression is replaced by the value at which we want to find the numeric value.

The function giving the population after t years is defined as follows:

[tex]P(t) = \frac{340}{1 + 6e^{-0.45t}}[/tex]

The initial population is the numeric value at t = 0, that is, the lone instance of t is replaced by zero, hence:

[tex]P(0) = \frac{340}{1 + 6e^{-0.45(0)}} = \frac{340}{7} = 49[/tex]

After eight years, the population is given by the numeric value at t = 8, hence:

[tex]P(8) = \frac{340}{1 + 6e^{-0.45(8)}} = 292[/tex]

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In the triangle below, with right angle G, suppose that m/F= (3x-14)° and mZH=(5x-16)°.
Find the degree measure of each angle in the triangle.

Answers

The degree measure of each angle in the triangle is

∠H = 59°

∠F = 39°

Angle sum property of triangle says that sum of all the triangle is always equal to 180°

∠G is given to us as 90°

So by applying the property we an say that

90 + (3x - 14) + (5x - 16) = 180

8x = 180 - 90 + 14 + 16

8x = 120

x = 15

∠H =  5x - 16

∠H = 5*15 - 16

∠H = 75 - 16

∠H = 59°

∠F = 3x - 14

∠F = 3*15 - 14

∠F = 45 - 14

∠F = 39°

Therefore ∠H = 59° and ∠F = 39°

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Ray buys a computer game for $38. He uses a coupon to receive 15% off the price of the game. After the coupon is deducted, he must pay 6% sales tax. What is the tota cost of the game, to the nearest cent? A $28.00 C. $34.58 D. $36.56​

Answers

You might be missing the B answer put it would come out to be 34.24

Direct and Inverse Variations

Answers

The value of y is 24 when x is 7.

What is Ratio?

A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0.

Given,

There are direct variations

y= 24 when x=2

We need to find value of y when x =7

This can be found by forming an equation.

Let the value of unknown y be a

2/24=7/a

Apply cross multiplication

2a=24(7)

2a=168

We need to divide by 2 on both sides

a=24

Hence the value of y is 24 when x is 7.

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Colin buys a car for £45500. It depreciates at a rate of 6% per year. How much will it be worth in 3 years? Give your answer to the nearest penny where appropriate.

Answers

Answer:

The answer is 33,710 euros.

Step-by-step explanation:

Start by multiplying 45,550 by 6%. This will give 2,730. over the next three years the price decreases, so multiply 2,730 by 3, which is 8,190. Finally, subtract 45,550 by 8,190 to get 33,710.

Suppose that A and B are points on the number line.
If AB=5 and B lies at 12, where could A be located?
If there is more than one location, separate them with commas.
:0
Location(s) of A :
0.0....
X

Answers

Answer:

locations of A are 7, 17

Step-by-step explanation:

since B is positioned at 12 and AB = 5 , then

A = 12 - 5 or 12 + 5 = 7 , 17

Graph the points of the given function with the x-values x=−4 , x = 0, and x = 5. f(x)=−2x+4−−−−√

Answers

The graph is attached and the table of value of the graph is as follows

x     y

-4   12

0    4

5    -6

How to get the table of values

The function y = −2x + 4 is a linear function and will have a straight line graph

The table of values is gotten form the equation y = −2x + 4

solving for x = -4,

y = −2 * -4 + 4 = 12

solving for x = 0

y = −2 * 0 + 4 = 4

solving for x = 5,

y = −2 * 5 + 4 = -6

x     y

-4   12

0    4

5    -6

The graph is plotted by finding the points in the table in the Cartesian plane and joining the points together

Other values are solved for in similar step

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Answer:Here is your answer

Step-by-step explanation:

The radius of a circle is 15 inches. What is
the circumference of the circle? Write
your answer using T.

Answers

Answer:

C = 30pi inches

Step-by-step explanation:

The radius is 15 inches (said so in the question)

The diameter is 30 inches (The diameter is twice the radius)

The circumference is

C = pi•d

C = pi•30

C = 30pi

The circumference is 30pi inches.

Write an equation in slope-intercept form
to represent the relationship between x
and y shown in the table.
X
Y
-10 -5 0 5
55
20
-15
-50
10
-85

Answers

Answer:

665-09

Step-by-step explanation:

⦁ The function p (w) = 230(1.1)w represents the number of specialty items produced at the old factory w weeks after a change in management. The graph represents the number of specialty items produced at the new factory during the same time period. 10 points

⦁ During Week 0, how many more specialty items were produced at the old factory than at the new factory? Explain.
⦁ Find and compare the growth rates in the weekly number of specialty items produced at each factory. Show your work.
⦁ When does the weekly number of specialty items produced at the new factory exceed the weekly number of specialty items produced at the old factory? Explain.

you will get 10 points

Answers

During week 0, 40 more items were produced at the old factory than at the new factory.The growth rate for the old factory is of 10%, while for the new factory is of 15.78%.The number of the new factory overtakes the old factory in 3.73 weeks.

What are the exponential functions?

The increasing exponential functions are described as follows:

f(t) = a(1 + r)^t.

In which the parameters are listed as follows:

a is the initial value.r is the growth rate.

For the old factory, the function is of:

p (w) = 230(1.1)^w.

Hence:

During week 0, 230 items are produced.The growth rate is of 10%.

For the new factory, from the graph given at the end of the answer, the parameters are given as follows:

a = 190, which is the intercept.b = 1.1578, as 220/190 = 1.1578.

Hence the function is:

pn(w) = 190(1.1578)^w.

The new factory overtakes the old factory when:

pn(w) > p(w)

190(1.1578)^w > 230(1.1)^w

(1.1578/1.1)^w > 230/190

wlog(1.1578/1.1) > log(230/190)

w > log(230/190)/log(1.1578/1.1)

w > 3.73 weeks.

Missing Information

The graph for the second factory is given by the image presented at the end of the answer.

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PLEASE HELP!
629 students at a school each pay £6 to go on a school trip. How much money do they pay in total?
Show all your working.

Answers

Answer:

£3,774

Step-by-step explanation:

629 students at a school each pay £6 to go on a school trip. How much money do they pay in total?

629 * £6 = £3,774

Answer:

no of students= 629

amount paid each =£6

amount paid by all the students =no of students × amount paid each

:: 629

× 6

£3774

What is the
y-intercept of the function f(x)=-2/9x+1/3?

Answers

Answer:

1/3

Step-by-step explanation

We can immediately tell the y-intercept is 1/3.

Slope intercept form:

y = mx + b

m = slope

b = y-intercept.

Answer: the y - intercept is 1/3

Step-by-step explanation: trust

Describe the transformation of
f(x) = -2|x + 1 + 5

Shift Up__units.

Shift Down__units.

Shift Right__units.

Shift Left__units.

Compress by a factor of__
Stretch by a factor of__
Reflect over__axis.

Answers

The transformation of the equation f(x) = -2|x + 1| + 5 is

Shift Left 1 units

Shift Up 5 units

Compress by a factor of 2

Reflect over x axis

Interpretation of the transformations

Transformation involves movements of image or object usually described in a cartesian plane

starting from |x| at the origin

|x + 1| is a shift to the left 1 unit

|x + 1| + 5 is a shift on the y axis, it represents a shift up 5 units

2|x + 1| + 5 is a vertical compression by a factor of 2  

-2|x + 1| + 5 the negative sign shows reflection over x axis turning the graph over

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Hey, guys! How is your day? (°ω°)
Wilson paints 40% of a bookcase in 20 minutes.

Write an equation using equal fractions to represent this situation. Use a box to represent the time it takes to paint the whole bookcase.

Answers

The time it takes to paint the whole bookcase is 50 minutes.

How to calculate the value?

From the information, Wilson paints 40% of a bookcase in 20 minutes.

Let the time taken to paint the whole bookcase be x. This will be illustrated as:

20/x = 40/100

Cross multiply

40x = 100 × 20

40x = 2000.

Divide

x = 2000 / 40

x = 50

The time taken is 50 minutes.

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Find the least common denominator. Then express each fraction using the least common denominator. 3/4 and 5/6
I need a answer

Answers

Answer:

The least coomon denominator is 12, so

9/12 and 10/12

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