Simplify the expression: 4(9c − 7)

Answer:

C. 10 year old

Step-by-step explanation:

Not needed

Answer:

10 years

Step-by-step explanation:

10000-1000t=0

10000=1000t

t=10yeard

Answer: x= -3

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

5(x−4)+3x−9x=6−(2x+5)+8x

(5)(x)+(5)(−4)+3x+−9x=6+−2x+−5+8x(Distribute)

5x+−20+3x+−9x=6+−2x+−5+8x

(5x+3x+−9x)+(−20)=(−2x+8x)+(6+−5)(Combine Like Terms)

−x+−20=6x+1

−x−20=6x+1

Step 2: Subtract 6x from both sides.

−x−20−6x=6x+1−6x

−7x−20=1

Step 3: Add 20 to both sides.

−7x−20+20=1+20

−7x=21

Step 4: Divide both sides by -7.

−7x

−7

=

21

−7

x=−3

Answer:

could you say the whole question?

Step-by-step explanation:

thanks alot

Answer:

see explanation

Step-by-step explanation:

Given

f(x) = 3x² - x + 2

To evaluate given values of x, substitute the values of x into f(x)

(a)

f(3) = 3(3)² - 3 + 2 = 3(9) - 1 = 27 - 1 = 26

(b)

f(- 5) = 3(- 5)² - (- 5) + 2 = 3(25) + 5 + 2 = 75 + 5 + 2 = 82

(c)

f(2) = 3(2)² - 2 + 2 = 3(4) = 12

(d)

f(m) = 3m² - m + 2

(d)

f(x + 2) = 3(x + 2)² - (x + 2) + 2 ← expand (x + 2)² using FOIL

            = 3(x² + 4x + 4) - x - 2 + 2

             = 3x² + 12x + 12 - x ← collect like terms

             = 3x² + 11x + 12

The given equation is not defined in the interval [tex]\left[\dfrac{\pi}{3},\pi\right][/tex]. Therefore, FTC2 is not applied and this can be determined by using the property of the trigonometric function.

Given :

Equation  --  [tex]\rm \int^{\pi}_{\pi/3}7\;sec\theta\; tan\theta \;d\theta[/tex]

The following steps can be used in order to determine what is wrong with the given equation:

Step 1 - Write the given equation.

[tex]\rm \int^{\pi}_{\pi/3}7\;sec\theta\; tan\theta \;d\theta[/tex]

Step 2 - In the given equation [tex]\rm sec\theta[/tex] is not defined at [tex]\theta = \pi/2[/tex].

Step 3 - In the given equation [tex]\rm tan\theta[/tex] is not defined at [tex]\theta = \pi/2[/tex].

Step 4 - From the above steps, it can be concluded that the given equation is not defined in the interval [tex]\left[\dfrac{\pi}{3},\pi\right][/tex]. Therefore, FTC2 is not applied.

For more information, refer to the link given below:

https://brainly.com/question/13710437

Answer:

5

Step-by-step explanation:

if both of them have 5 without a picture they most likely are intercepted at the number 5

Complete question:

A student throws a heavy ball downward off the top of a building with a speed of 18m/s. The ball reaches a speed of 41m/s just before striking the ground. Neglect drag, find the height of the building.

Answer:

The height of the building is 69.235 m

Step-by-step explanation:

Given;

initial velocity of the ball, u = 18 m/s

final velocity of the ball, v = 41 m/s

The height of the building is equal to distance traveled by the ball downward.

Apply the following kinematic equation;

v² = u² + 2gh

where;

g is acceleration due to gravity

h is height of the building

41² = 18² + 2(9.8)h

1681 = 324 + 19.6h

19.6h = 1681 - 324

19.6h = 1357

h = 1357 / 19.6

h = 69.235 m

Therefore, the height of the building is 69.235 m

Answer: You should get 15 water bottles

Step-by-step explanation: You need at least 8 water bottles and at least 5 water bottles so you should get 15 because 9+6.

The number of water bottles you would need to buy is at least 13 water bottles

let

b = water bottles

Statement 1:

at least 5 water bottles

b ≥ 5

statement 2:

at least 8 water bottles

b ≥ 8

b ≥ 13

Therefore, the number of water bottles you would need to buy is at least 13 water bottles

Read more:

https://brainly.com/question/11067755

Answer:

The value is  [tex]\r p  =  2.9\%[/tex]

Step-by-step explanation:

From the question we are told that

   The  number of singers is  [tex]N  =  1542[/tex]

   The  sample  size is  [tex]n  =  650[/tex]

    The  number the number of singers who are professional is k =  19

The  proportion of professional singers is mathematically represented as

       [tex]p  =  \frac{k}{n}[/tex]

=>      [tex]p  =  \frac{19}{650}[/tex]

=>    [tex]p  =  0.029 [/tex]

The  percentage estimate of singers who are professional is

      [tex]\r p  =  100 * 0.029[/tex]

       [tex]\r p  =  2.9\%[/tex]

1. -1

2. 7

3.-8

i hope these are the answers

Answer:

-1,7, - 8

Step-by-step explanation:

-9 +8 =-1

8 +(-1)=7

-6 +(-2)=-8

Answer:

The missing term is 3x

Step-by-step explanation:

Hope that helped!!

Answer:

b

Step-by-step explanation:

i did the problem

Answer: (2,-3)

Step-by-step explanation:

To solve by elimination method, we need to choose which variable to eliminate. Let's eliminate y. We need to make sure that the y coefficients in both equations are equal. To do that, you multiply the first equation by 5 and the second by 9.

(11x + 9y = -5)5        [multiply entire equation by 5]

(7x + 5y = -1)9          [multiply entire equation by 9]

--------------------------------------------------------------------------------------------------------

55x+45y=-25

63x+45y=-9

Now that the y are both the same, we can eliminate y by subtracting both equations and solve.

-8x=-16                     [divide both sides by -8]    

x=2

Now that we have x=2, we can plug that in to any equation to find y.

7(2)+5y=-1                [multiply]

14+5y=-1                   [subtract both sides by 14]

5y=-15                      [divide both sides by 5]

y=-3      

With the y-value, we know that the answer is (2,-3).

Answer:

x = 0

Step-by-step explanation:

Answer:

12:1/2(3)

Step-by-step explanation: no problem homie

Answer:

The correct answer is :

1. Line PQ (One line PQ).

Step-by-step explanation:

The first step to solve this question is to draw the plane A with the points P and Q lying on it.

We know that given two different points there is only one line that contains this two different points.

Let's analyze each option.

''2. Lines PQ and QP''

This option is wrong because there aren't two different lines. In fact it is only one line that can be named line PQ or line QP.

''3. The 2 lines PQ and QP plus another line that does not lie in plane A.''

This option is assuming that exist three lines that contain P and Q. This option is also wrong.

''1. Line PQ''

This option is correct. It will be clarify with the drawing I will attach.

''We can't name them all!''

This option is assuming that exist infinite lines that contain P and Q. This option is wrong.

In the drawing I call the line that contains P and Q as line L.

Given that P and Q lie in plane A necessarily the line L must lie on the plane A.

Only one line contains points P and Q

The given parameters are:

There are at least two points in a line

This means that, a line can contain points P and Q, and any other points

Hence, only one line contains points P and Q

Read more about plane and points at:

https://brainly.com/question/17268701

Answer:

Step-by-step explanation:

In this problem, we are expected to estimate the number of bricks he can set in 8 hours.

let us convert hours to minutes we have

60 min make 1 hour

x min make 8 hours

cross multiply

x= 60*8

x= 480 min

We are assuming the same rate with which he sets 2.5 brick is the same as the rate with which he will set bricks for the 8 hours windows

so if the bricklayer sets

2.5 bricks in 1min

y bricks in 480 min

Cross multiply we have

y=2.5*480

y= 1200  bricks

hence in 8 hours, he will set 1200 bricks

Answer:

.101265823

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

Hope that's right

Answer:

24

Step-by-step explanation:

First Pemdas first everything inside the parenthesis then times it by negative then add everything up

Answer:

-8,-2= 6

6,-1=7

Step-by-step explanation:

get a number line and use that to it and look up how to use a number line with negative numbers it’s not hard once you see how it’s done

Hey there! I'm happy to help!

Here is how to find the distance between two points.

Find the difference between the x values.

-8-6=-14

We square this.

14²=196

We find the difference between the y values.

-2-(-1)=-2+1=-1

We square it.

-1²=1

We add up the two numbers we got.

196+1=197

And we square root it.

√197≈14

Have a wonderful day! :D

Answer:

0.5

Step-by-step explanation:

8 is bigger than 5 so 4 rounds up

Steps to solve:

-5(-6 + 2c)

~Distribute

30 - 10c

Best of Luck!

Answer: D- 30

Step-by-step explanation:

Answer:

12y+24

Step-by-step explanation:

You can add 2y and 10y due to the same variable, y.

Answer:

35 dollars

Step-by-step explanation:

23 + 12 = 35

hopefully this helps you :)

pls give me brainlest ;)

Answer:

[tex]x = \frac{8d-10e-3a-2b}{c}[/tex]

Step-by-step explanation:

In order to find x, our goal is to isolate it on one side of the equation.

To do this, let's first apply the distributive property on the right side of the equation.

[tex]3a+2b+cx = 8d - 10e[/tex]

Now we can subtract [tex]3a[/tex] and [tex]2b[/tex] from both sides:

[tex]cx = 8d - 10e - 3a - 2b[/tex]

And now we can divide both sides by [tex]c[/tex] so that x is alone on the left side.

[tex]x = \frac{8d-10e-3a-2b}{c}[/tex]

Hope this helped!

Answer:

=2.3576x

Step-by-step explanation:

0.421x(5.6)

=2.3576x