what is the value of x?

Answer:

a.5115.5g

b. 5115.5/1000= 5.1kg

Step-by-step explanation:

Given data

volume= 650 cm^3

density= 7.87 g/cm^3

We know that

density= mass/volume

mass= density*volume

mass= 7.87*650

mass= 5115.5 g

a.5115.5g

b. 5115.5/1000= 5.1kg

Answer:

612 I think well how this helps

Answer:

x^2 - 6x + 9

Step-by-step explanation:

(x-3)^2

(x-3)(x-3)

x^2 -3x -3x + 9

x^2 - 6x + 9

^2 means (x - 3) times itself twice.

(x - 3)(x - 3)             multiplying polynomials- Firsts, Outs, Inners, Lasts (FOIL)

                                 Firsts (x* x)   Outs (x*-3)   Inners (-3 * x)   Lasts (-3*-3)

xx -3x -3x +9            Combine like terms.

      -3x -3x             Adding/subtracting integers- same signs means you add          

                                     and keep the sign.

x^2 -6x + 9              

Answer:

A. The maximum represents the most amount of pencil price in dollars sold for the most amount of profit and the x-intercepts represent the profit when it is. The intervals at where the function increases represents a bigger profit for a price, whereas a decreasing interval represents a lower profit for a price.

Step-by-step explanation:

my answer for my test

The average rate of a function is 20 and for every $1 increase in the price of its pencils, the company's profit climbs by $20 on average.

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

Average rate of a function:

= (160-100)/5-2

= 20

For every $1 increase in the price of its pencils, the company's profit climbs by $20 on average.

Because prices are rarely negative, the domain is most likely confined to 0≤x. The price may be set so high that it yields a loss, but that is not a viable option. As a result, x ≤10 is the upper limit of the sensible domain.

Thus, the average rate of a function is 20 and for every $1 increase in the price of its pencils, the company's profit climbs by $20 on average.

Learn more about the function here:

brainly.com/question/5245372

#SPJ2

Answer:

7.5

Step-by-step explanation:

Answer:

45

Step-by-step explanation:

12 x 2.5= 30

5 x 6=30

30/2=15

30+15=45

Answer:

x=2

Step-by-step explanation:

Answer:

x=2

Step-by-step explanation:

happy to help ya :)

Answer:

7. about 41.8 degrees or 0.72972 radians (used [tex]sin^{-1} (\frac{4}{6} )[/tex], because the given leg is opposite from the angle)

8. about 50.4 degrees or 0.87946 radians (used [tex]tan^{-1} (\frac{29}{24} )[/tex])

9. about 12.8 degrees or 0.224 radians (used [tex]sin^{-1} (\frac{12}{54} )[/tex])

10. about 51.3 degrees or 0.8957 radians (used [tex]cos^{-1} (\frac{25}{40} )[/tex], given leg is opposite from angle)

Step-by-step explanation:

S.O.H.--C.A.H.--T.O.A

sine = opposite (to angle)/hypotenuse

cosine = adjacent (to angle)/hypotenuse

tangent = opposite (to angle)/adjacent (to angle)

I didn't know if it was degrees or radians, so I did both! I saw you on the film question asking for help, so I just wanted to do so! Have a great day!

Answer:

Quadrant 4 (IV)

Step-by-step explanation:

Quadrant 1: x>0, y>0

Quadrant 2: x<0, y>0

Quadrant 3: x<0, y<0

Quadrant 4: x>0, y<0

Answer:

[tex]9\ \text{inches}[/tex]

Step-by-step explanation:

[tex]2\ \text{inches}[/tex] of the blueprint is [tex]3\ \text{feet}[/tex] of the actual concrete patio.

So [tex]1\ \text{inch}[/tex] of the blueprint = [tex]\dfrac{3}{2}\ \text{feet}[/tex] of the actual concrete patio

Width of the patio in the blueprint is [tex]12\ \text{inches}[/tex].

So [tex]12\ \text{inches}[/tex] of the blueprint = [tex]12\times \dfrac{3}{2}=18\ \text{feet}[/tex] of the actual concrete patio.

Now for the new blueprint [tex]1\ \text{inch}=2\ \text{feet}[/tex] of the actual concrete patio.

[tex]1\ \text{feet}[/tex] of the actual concrete patio = [tex]\dfrac{1}{2}\ \text{inch}[/tex] of the new bluprint.

So, [tex]18\ \text{feet}[/tex] of the actual concrete patio = [tex]\dfrac{18}{2}=9\ \text{inches}[/tex] of the new blueprint.

Answer:

5h ≤ 20 or h ≤ 4

Step-by-step explanation:

Lia walks at a rate of 5 miles per hour.

Lia has a goal of walking at least 20 miles

Let h be the number of hours she should walk in order to meet or exceed her goal.

At least in inequality means ≤. ATQ,

5h ≤ 20

Dividing both sides by 5.

h ≤ 4

So, she should walk atleast 4 hours. Hence, the correct option is (b).

Answer:

it would made one triangle

Step-by-step explanation:

it adds up to 180

Answer: 120 minutes.

Step-by-step explanation:

60 minutes in an hour. 60 * 2 = 120

Answer:

Linear equations are an important tool in science and many everyday applications. They allow scientist to describe relationships between two variables in the physical world, make predictions, calculate rates, and make conversions, among other things. Graphing linear equations helps make trends visible.

Answer: Linear equations are an important tool in science and many everyday applications. They allow scientist to describe relationships between two variables in the physical world, make predictions, calculate rates, and make conversions, among other things. Graphing linear equations helps make trends visible.

Step-by-step explanation:

Answer:

use pemdas

Step-by-step explanation:

Answer:

7

32

17

36

97

11

43

31

12

32

42

9

78

98

10

8

76

59

8

75

Step-by-step explanation:

going straight down from the top

Answer:

0.16

Step-by-step explanation:

if the number in the thousandths is 5 or over you round it up.

Answer:

0.6

Step-by-step explanation:

there is no way of doing this you just look at the number 5 .

Answer:

Step-by-step explanation:

Simplifying

7x + -2y = 1

Solving

7x + -2y = 1

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '2y' to each side of the equation.

7x + -2y + 2y = 1 + 2y

Combine like terms: -2y + 2y = 0

7x + 0 = 1 + 2y

7x = 1 + 2y

Divide each side by '7'.

x = 0.1428571429 + 0.2857142857y

Simplifying

x = 0.1428571429 + 0.2857142857y

///////////////////////

Simplifying

2y = x + -1

Reorder the terms:

2y = -1 + x

Solving

2y = -1 + x

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Divide each side by '2'.

y = -0.5 + 0.5x

Simplifying

y = -0.5 + 0.5x

Answer:

1) y = − 1 2 + 7 x 2

2)  x = 2 y + 1

Step-by-step explanation:

Subtract 7 x from both sides of the equation. − 2 y = 1 − 7 x Divide each term by − 2 and simplify.

y = − 1 2 + 7 x 2

Solve for x by simplifying both sides of the equation, then isolating the variable. x = 2 y + 1

Answer:

The sum of interior angles of a regular shape is found by doing no. of sides - 2 and times this by 180

8-2 =6

6x 180= 1080

then divide by 8 to find each angle

1080/8 = 135

Answer: F(x)=24

Step-by-step explanation:

f(x)=5(-3)^2+7(-3)

f(x)= 5(9)+7(-3)

f(x)=45-21

f(x)=24

Answer: See explanation

Step-by-step explanation:

               Won     |      Drawn     |      Lost     |      Total

Home |      14                3                     2                19

Away  |       7                  4                    8                19

Total   |     21                    7                   10                38

Answer:

The slope is -1/2

Step-by-step explanation:

Hope this helps (:

Answer:

i love math anyways

The ans is in the picture with the steps how i got the ans

(hope that helps can i plz have brainlist :D hehe)

Step-by-step explanation:

Answer:

Yes.

Step-by-step explanation:

when both l and m are parallel then

(4x+7) = (6x-63)

-2x = -70

-x = -70/2

-x = -35

x = 35

hope it helps and ur day will full of happiness

Answer:

Step-by-step explanation:

Add them together

-6x = -4

X = 4/6 y = -1

Answer:(x,y)=(23/6,-5/14)

Step-by-step explanation:

I used an app so dont get mad if its wrong

1. Supplementary

2. Complementary

3. Adjacent angles

4. Vertically opposite angles

Hope it helps. Please mark brainliest.

Answer:

£3,692

Step-by-step explanation:

First four years

A = p(1 + r/n)^nt

P = £2350

r = 4.2% = 0.042

n = 1

t = 4

A = p(1 + r/n)^nt

= 2350(1 + 0.042/1)^1*4

= 2350(1 + 0.042)^4

= 2350(1.042)^4

= 2350(1.5789)

= 2770.42

A = £2770.42

Next 6 years

P = £2770.42

r = 4.9% = 0.049

n = 1

t = 6

A = p(1 + r/n)^nt

= 2770.42(1 + 0.049/1)^1*6

= 2770.42(1 + 0.049)^6

= 2770.42(1.049)^6

= 2770.42(1.3325)

= 3691.59

A = £3691.59

Approximately £3692