evaluate the function when x = 4 b(x) = -2x - 4

Answer:

2A / r^2 = pi

Step-by-step explanation:

A = 1/2 pi r^2

Multiply by 2

2A = pi r^2

Divide by r^2

2A / r^2 =  pi r^2/r^2

2A / r^2 = pi

Given :

Distance covered by object , D = 63 cm .

Time taken to cover distance D , t = 2 days .

To Find :

The speed of object in m/s .

Solution :

First we will convert all units into m and hours .

D = 63 cm = 0.63 m .

[tex]t=2\ days =2\times 24\ hours =48\ hours[/tex] .

Now , speed is :

[tex]s=\dfrac{D}{t}\\\\s=\dfrac{0.63}{48}\ m/hours\\\\s=0.013\ m/hours[/tex]

Hence , this is the required solution .

Answer:63

Step-by-step explanation:

Answer:

I think the answer is O

Answer:

x=9

Step-by-step explanation:

I'm Pretty Sure The Answer Is x=2

Hope This Help's

Answer:

2

Step-by-step explanation:

When subtract the 2 from the right side and subtract it from the right side, then divide three from the left side and then divided it from the right side, then you should end up with x=2

A scientist is going to measure the amount of rain we get today. Look at the table and pick the best answer that describes it. X (hours) 2 6 00 y (rain) 02 6 9 12 a Nonlinear b Ос Nonproportional Proportional Rational Od INTL 2​

Answer:

Shalini = 12

Poonam = 60

Step-by-step explanation:

Let p = poonams age

Let s = shalini's age

p = 5s

p+s = 72

Substitute the first equation into the second equation

5s+s = 72

Combine like terms

6s= 72

Divide by 6

6s/6 = 72/6

s = 12

p = 5s =5*12 = 60

Shalini = 12

Poonam = 60

We can use the given points to solve for the slope.

Slope formula: y2-y1/x2-x1

-3-5/5-(-7)

-8/12

-4/6

-2/3

Best of Luck!

Answer:

A,B,C,F

Step-by-step explanation:

The correct answer would be options (A), (B), (C), and (F)

(A) positive: (–2, 2)

(B) range: (–3, 4]

(C) domain: (–3, 3]

(F) increasing: (–3, –1)

The domain of the function includes all possible x values of a function, and the range includes all possible y values of the function.

The vertical span of the range is from y > -3 to y = 3. The interval for this is [(-3, 3].

The horizontal range, from x > -3 to x = +4, represents the domain. This is represented by the interval [(-3, 4].

The graph decreases to the right, it gets smaller. There is no mention of the endpoints. The x values are in the range (-1, 4).

The graph is increasing where it goes up to the right. The endpoints are generally not included. The x-values are in the interval (-3, -1).

The region of the graph that is above the x-axis is positive. The interval contains x. (-2, 2).

Learn more about the domain and the range here:

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the answer is 60,000

For Connexus students:

1.  6,0000

2. 2,300

3. 9.68 x 10 to the 5th power

4. 8.6 x 10 to the 3rd power

5. the number of places to move the decimal point to the right

Answer:

Step-by-step explanation:

x^2 + 1 -2x + 5

x^2 - 2x + 6

Answer:

You just have to add them, -10 is the answer

Step-by-step explanation:

-3+ -4 = -7

-7+ -3 = -10

Hope this is right :)

Answer:

Distribute

Step-by-step explanation:

The first step in solving this equation is distribute (get rid of parentheses):

2x + 2 = 8x -5

Hope this helps ^^

Answer:

Step-by-step explanation:

(5x + 4)(x^2 - 7x + 12)

5x^3 - 35x^2 + 60x + 4x^2 - 28x + 48

5x^3 - 31x^2 + 32x + 48

Answer:

To the nearest thousands; 36,000 customers were surveyed.

Step-by-step explanation:

Conversion of figures to the nearest thousand often requires rounding up digits that are not up to 5 in the place of hundreds to zero and rounding up the digits that are up to 5 in the place of hundreds to one, therefore, adding it to the value of the previous thousands.

From the given  question, to round up the number of customers surveyed in the company, we have the following:

since we are given the value to be 36,219

9 is in unit position

1 is in tens

2 is in hundreds

6 is in thousands

3 is in ten thousand

since the value of 2 in hundred is not up to 5, we round it up to zero, Then our value becomes 36,000 to the nearest thousand.

Answer:

top = 17ft

bottom = -12ft

Step-by-step explanation:

As seen in the badly drawn picture attached in this question we are trying to find the point at the top of the ladder and the point at the bottom of the ladder. As seen in the picture ground level has an altitude of 0 ft meaning that lower than this would be in the negatives. Since the basement floor is 12 feet below ground level then this point would be -12 ft. Now since we know that the ladder is 29ft tall we simply add this height to the basement floor value to get the value of the 2nd floor ceiling (top of the ladder).

29ft + ( -12ft) = 17ft

Therefore we can see that the point at the top of the ladder is 17ft.

Answer:

[tex]h<-15[/tex]

Step-by-step explanation:

[tex]-18+7h>12+9h[/tex]

Add 18 to both sides:

[tex]-18+7h+18>12+9h+18[/tex]

[tex]7h>9h+30[/tex]

Subtract 9h from both sides:

[tex]7h>9h+30[/tex]

[tex]-2h>30[/tex]

Multiply both sides by -1 and flip the symbol:

[tex]\left(-2h\right)\left(-1\right)<30\left(-1\right)[/tex]

[tex]2h<-30[/tex]

Divide both sides by 2:

[tex]\frac{2h}{2}<\frac{-30}{2}[/tex]

[tex]h<-15[/tex]

Answer:

T= -5

Step-by-step explanation:

2(2t+4)= 3/4(24-8t)

4×2(2t+4)= 4×3/4(24-8t)

16t+32=72-32

16t-24t=72-32

-8t=40

therefore t equals negative five.

i hope you understand.

Answer:

Step-by-step explanation:

Answer:

2. 21

3. no is 14

4. 0

5. 22

[tex] \huge {\sf {{x}^{3} - 125 = 0}} [/tex]

The root of the equation.

By adding 125 to both the sides, we get

[tex] \huge {\sf { {x}^{3} = 125}} [/tex]

Take cube to the RHS (Right Hand Side), we get

[tex] \huge {\sf { x = 5}}[/tex]

The solution to the expression is x = 5.

We have,

Expression:

x³ - 125 = 0

This can be written as,

x³ = 125

Now,

Cube of 5:

5³ = 5 x 5 x 5 = 125

Now,

x³ = 5³

Cube cancels out on both sides.

x = 5

Thus,

The solution to the expression is x = 5.

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Answer:

[tex]3\frac{5}{6}[/tex]

Step-by-step explanation:

I hope this helps!

Answer:

13°F

Step-by-step explanation:

Given that,

Initial temperature = 56°F

Final temperature, = 56°F

We need to find the change in temperature. It is equal to the difference between final temperature and the initial temperature. So,

[tex]\Delta T=T_f-T_i\\\\\Delta T=43^{\circ}F-56^{\circ} F\\\\\Delta T = 13^{\circ} F[/tex]

So, the change in temperature is 13°F.

Answer:

13°F

Step-by-step explanation:

Answer:

See Explanation

Step-by-step explanation:

Since, Points P, Q, and R are collinear and Point Q is between P and R.

[tex] \therefore \: PR = PQ + QR \\ 13n - 10 = 4n + 3 + 6n + 8 \\ 13n - 10 = 10n + 11 \\ 13n - 10n = 11 + 10 \\ 3n = 21 \\ n = \frac{21}{3} \\ n = 7 \\ \\ PQ =4n + 3 = 4 \times 7 + 3 = 31 \\ QR = 6n + 8 = 6 \times 7 + 8 = 50 \\ PR = 13n - 10 = 13 \times 7 - 10 = 81[/tex]

Answer:

100-(5x+3y)

Step-by-step explanation:

100-(5x+3y) 5 cds cost x dollars plus 3 costs that cost y dollars equals the total amount of money he spends then subtract by 100 to find how much he has left

Answer: 765

Step-by-step explanation:

y + 6 = 4/3(x - 2)

First, distribute the 4/3

y + 6 = 4/3x - 8/3

Subtract 6 from both sides.

y = 4/3x - 26/3

-26/3 is the y-intercept so start the graph at coordinate (0, -26/3)

After you plot the y-intercept, add 4 to they y-coordinate and 3 to the x-coordinate of the y-intercept to get the next point.

0 + 3 = 3

-26/3 + 4 = -14/3

The next point should be at (3, -14/3)

Add as many points as your professor requires.

Answer:

(0, -26/3)     (3, -14/3)

Step-by-step explanation:

y+6 = 4/3x - 8/3

y = 4/3x - 26/3

(0, -26/3)

-26/3 + 4 = -14/3

 (3, -14/3)