Can i get help on 7=1/2(x+2)

Answer:

The choose D.

I hope I helped you^_^

Answer:

Step-by-step explanation:

Volume of the cube = s^3

s = 9cm

V = 9 * 9 * 9

V = 729 cm^3

d = mass / volume

d = 3645 / 729

d = 5 grams / cm^3

Answer:

the answer for this questionis 93(68+7)

Answer:

X (2, 1)

Y (2, 3)

W (5, 5)

Step-by-step explanation:

The current points are:

X (-2, -1)

Y (-2, -3)

W (-5, -5)

Now, after rotating 180 degrees around the origin, here is what points Y, Y, and W would look like:

X (2, 1)

Y (2, 3)

W (5, 5)

Plot these new points on the graph, and you'll have a new figure which will be rotated to 180 degrees.

I have also provided you with a graph, showing both, the original and the rotated version, below.

Answer:

This word phrase into a equation is

4x -8 = 20

Answer:

BC ≈ 8.6

Step-by-step explanation:

Using Pythagoras' identity in the right triangle , that is

BC² = AB² + AC² = 7.3² + 4.6² = 53.29 + 21.16 = 74.45 ( square root both sides )

BC = [tex]\sqrt{74.45}[/tex] ≈ 8.6 ( to 1 dec. place )

Answer:

11x-24

Step-by-step explanation:

All you have to do is add (3x-2)+(8x-22)=11x-24.

Answer:

RT = 20

Step-by-step explanation:

Since Y is the midpoint of RT , then

RY = YT , that is

3x - 2 = 8x - 22 ( subtract 8x from both sides )

- 5x - 2 = - 22 ( add 2 to both sides )

- 5x = - 20 ( divide both sides by - 5 )

x = 4

Then

RT = RY + YT = 3x - 2 + 8x - 22 = 11x - 24 , so

RT = 11(4) - 24 = 44 - 24 = 20

I assume a, b, and c are the measures of the angles A, B, and C themselves. (If you meant lengths of the sides opposite these angles, this would be impossible.)

The interior angles to any triangle sum to 180° in measure, so

A + B + C = 180°

Now,

• A is twice the size of B, so A = 2B or B = A/2

• C measures 20° less than A, so C = A - 20°

Substitute these into the first equation and solve for A :

A + A/2 + (A - 20°) = 180°

5/2 A - 20° = 180°

5/2 A = 200°

A = 80°

Solve for B and C :

B = 80°/2

B = 40°

C = 80° - 20°

C = 60°

Answer:

A

Step-by-step explanation:

a = 6

(a)^-2

(6)^-2

1/6²

Option A

Step-by-step explanation:

Solution

Given:- a=6

Now,

[tex] {a}^{ - 2} \\ 6 ^{ - 2} \\ \frac{1}{6 ^{2} } \\ \frac{1}{36} [/tex]

Answer:

C

Step-by-step explanation:

-x+3/7=2x-27/5

Just bring all the x together, ad all the numbers together

-x - 3x = - 3/7 - 27/5

-4x = - 15/ 35 - 189/35

-4x = - 204 /35

4x = 204/35

x = 204 / 140

x = 1.457

Your this question is a little weird, but the best bet would be C, since C = 1.3333

Answer:

60

Step-by-step explanation:

4a + 2b² -2(a-3b)

a = 2 and b = 4

4(2) + 2(4)² - 2(2-3(4))

8 + 32 -2(2-12)

40 - 2(-10)

40 +20

60

Therefore 60 is correct.

Answer:

angle ABD =55 degree

angle BCD= 125 degree

Step-by-step explanation:

angle ABD and angle DBC are supplementary angles.

Hence, angle ABD +angle DBC = 180 --equation 1

angle ABD = (2x+15) ---equation 2

angle BCD = (4x+45) ------equation 3

ABD+DBC=180

(2x+15) + ( 4x+45 ) = 180

2x+4x+15+45=180

6x+60=180

6x=180-60

6x=120

x=120/6=20

angle ABD= 2x+15= 2(20) +15

                              =40+15= 55 degree

angle BCD= 4x+45 = 4(20) +45

                                = 80+45= 125 degree

Hence, angle ABD =55 degree

            angle BCD= 125 degree

Hope this helps.

Answer:

[tex]x > 4[/tex]

Step-by-step explanation:

X is greater than 4

Answer:

Step-by-step explanation:

1/2 + 2/3 = 7/6

1/2 - 2/3 = - 1/6

Answer:

Let the number be x

half the number can be written as

x/2

then 5 less than half of the number can be written as

(x/2) - 5

Answer:

? = 120, ? = 145, respectively

Step-by-step explanation:

? + 60 = 180

? (+ 60 - 60) = 180 - 60

? = 120

35 + ? = 180

(35 - 35) + ? = 180 - 35

? = 145

Answer:

5/1

Step-by-step explanation:

the first set of the numbers you divide by 2 to get the answer. To get the answer for the second set of numbers, you divide by 3 to get your answer

Answer:

kg = 1,000 grams

[2.5 x 10^3] x   1,000 =2.5 x 10^6 grams of air.

[2,5 x 10^6] / 1.8 =~ 1,388,889 Liters of air in 2.5 x 10^3 kg.

Step-by-step explanation:

There are 1.39 x 10⁶  liters of air contained in 2.5 x 10³ kg of air.

Given that  1 liter of air is 1.80 grams.

2.5 x 10³ kg = 2.5 x 10³ × 1000 grams (since 1 kg = 1000 grams)

Calculating the mass in grams:

2.5 x 10³ × 1000 grams = 2.5 x 10⁶ grams

Now, to find the number of liters of air, we divide the mass (in grams) by the mass of 1 liter of air:

Number of liters = Mass / Mass per liter

Number of liters = 2.5 x 10⁶ grams / 1.80 grams per liter

= 1.39 x 10⁶ liters

Therefore, there are approximately 1.39 x 10⁶  liters of air contained in 2.5 x 10³ kg of air.

To learn more on Conversion factor click:

https://brainly.com/question/30567263

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Answer:

r =√[3V/(π h)]

Step-by-step explanation:

V = ⅓ × π r²h

=> multiplied by 3

3V = π r² h

=> find r²

r² = 3V/(π h)

=> find r

r =√[3V/(π h)]

Answer:

[tex]r=\sqrt{\dfrac{3V}{\pi h}}[/tex]

Step-by-step explanation:

Given equation:

[tex]V=\dfrac{1}{3} \times \pi r^2 h[/tex]

To isolate [tex]r[/tex], multiply both sides by 3:

[tex]\implies V \times 3=\dfrac{1}{3} \times \pi r^2 h \times 3[/tex]

[tex]\implies 3V= \pi r^2 h[/tex]

Divide both sides by [tex]\pi h[/tex]:

[tex]\implies \dfrac{3V}{\pi h}= \dfrac{\pi r^2 h}{\pi h}[/tex]

[tex]\implies \dfrac{3V}{\pi h}=r^2[/tex]

Square root both sides:

[tex]\implies \sqrt{r^2}=\sqrt{\dfrac{3V}{\pi h}}[/tex]

As the radius is positive only:

[tex]\textsf{Apply radical rule} \quad \sqrt{a^2}=a, \quad a \geq 0[/tex]

[tex]\implies r=\sqrt{\dfrac{3V}{\pi h}}[/tex]

Answer:

Page 3 - the y-intercept would remain at 5 and the slope would be 3 times the upward slope.

Page 5 - the y-intercept would remain at -2 and the slope would be 1/4 instead of 5

Step-by-step explanation:

In point slope form the slope and y-intercept can be read directly from the equation.

y = mx + b where m is the slope and b is the y-intercept.

Answer:

-3a^2= -3*(-6)^2

Step-by-step explanation:

-3a^2 = -3*a^2 = -3*(-6)^2

Answer:

$850

Step-by-step explanation:

washer + dryer = $950

if washer cost=>$100

Therefore; the value of the dryer should be x

$100+x=$950

x=$850

The dryer cost is =>$850

Answer:

The dryer is $425.

Step-by-step explanation:

Washer = 100 + Dryer

Set up an equation:

Variable x = dryer

x + x + 100 = 950

x + x = 850

2x = 850

x = 425

Dryer = 425

Bonus answer:

Washer = 100 + x

Washer = 100 + 425

Washer = 525

Check your work:

Washer + Dryer = 950

525 + 425 = 950

950 = 950

Correct!

Answer:

b.

Step-by-step explanation:

a+b = c

so a is c-b then you have the answer

A litter of pupples had 2 white pupples and 3 brown pupples. What percent of white pupples are in the litter? Round to the nearest whole number.?

답변:(C) 40%

Answer:

He is ten.

Step-by-step explanation:

10 yrs old. Go ahead 10 yrs to make 20. Which is four times as much as five years old. (Which is 5 years before 10)

Hope this helps! :)

Answer:

Present age = 10

Step-by-step explanation:

Let us assume that,

→ Present age = x

Forming the equation,

→ x + 10 = 4(x - 5)

Now the value of x will be,

→ x + 10 = 4(x - 5)

→ x + 10 = 4x - 20

→ x - 4x = -20 - 10

→ -3x = -30

→ x = -30/-3

→ x = 30/3

→ [ x = 10 ]

Hence, the boy's age is 10.