canz someone help me this is very confusing

Answer:

30³÷(−5) = -6y²

Step-by-step explanation:

We need to find the value of the given expression :

30³÷(−5)

It can be written as :

[tex]\dfrac{30xy^3}{(-5xy)}=\dfrac{30}{-5}\times \dfrac{xy^3}{xy}\\\\=-6\times y^2\\\\=-6y^2[/tex]

So, the value of the given expression is [tex]-6y^2[/tex].

Step-by-step explanation:

total ratio is 5

first find the total amount

bob's ratio is 2/5

so 2/5 ×total amount=8 pounds

0.4 ×total amount=8 pounds

total amount=8/0.4=20 pounds

so chris receives: 20-8=12 pounds

Answer:

Step-by-step explanation:

450

Answer:

[tex]y=3x[/tex]

Step-by-step explanation:

[tex]Ax+By+C[/tex] ⇒ [tex]y=mx+b[/tex]

[tex]3x+y=0[/tex]

Since there are no coefficients on the [tex]y[/tex], you can convert the equation in one step.

Subtract [tex]3x[/tex] from both sides

[tex]y=3x+0[/tex] [tex]or[/tex] [tex]y=3x[/tex]

plz mark me brainliest. :)

Answer:

Radius is 3.5 cm

Diameter is 7 cm

Step-by-step explanation:

Radius is half the diameter

They give you the diameter at 7 cm

Then you have to half that to get 3.5 cm as the radius

Answer:

The answers are the diameter is 7 because whatever the line across is it's the diameter and the radios is half of what the diameter is so whatever is half of 7 is your radios.

Step-by-step explanation:

Diameter: 7

Radios: 3.5 or 3 1/2

Answer:

$2.50+$1.25m

Step-by-step explanation:

hope this helps

Answer:

D) 126 in²

Step-by-step explanation:

A rectangular prism is 3 inches long, 5 inches wide, and has a height of 6 inches. What is its surface area?

The formula for the surface area of a rectangular prism =

A=2(wl+hl+hw)

Where

W= Width = 5in

H = Height = 6 in

l = Length = 3 in

Surface area =

2(5 × 3 + 6 × 3 + 5 × 6) square inches

2(15 + 18 + 30) square inches

2(63) square inches

= 126 square inches (in²)

Option D is correct

Answer:

126 in 2

Step-by-step explanation:

Answer:

u uninstalled ♭ that ↓ t sugar rx

Step-by-step explanation:

utajtt kytisau

Answer36

Step-by-step explanation:gta

Answer:

48x - 32

General Formulas and Concepts:

Pre-Algebra

Algebra I

Step-by-step explanation:

Step 1: Define

8(6x - 4)

Step 2: Expand

Answer:

C

Step-by-step explanation:

Method A:

270 decrease 25% =

270 × (1 - 25%) = 270 × (1 - 0.25) = 202.5

202.5 increase 6% =

202.5 × (1 + 6%) = 202.5 × (1 + 0.06) = 214.65

Method B:

270 increase 6% =

270 × (1 + 6%) = 270 × (1 + 0.06) = 286.2

286.2 decrease 25% =

286.2 × (1 - 25%) = 286.2 × (1 - 0.25) = 214.65

Answer:

Step-by-step explanation:

(x+1)(x-3)(x-4) = (x+1)(x²-7x+12) = x³-6x²+5x+12

:::::

(x+3)(x-0)(x-0)(x-5) = (x+3)(x²)(x-5) = (x²-2x-15)x² = x⁴-2x³-15x²

:::::

(x+2)³ = x³ + 3·x²·2 + 3·x·2² + 2³ = x³ + 6x² + 12x + 8

:::::

(x+3)²(x+1) = (x²+6x+9)(x+1) =  x³ + 7x² + 15x + 9

Answer:

3.2

Step-by-step explanation:

4t =6t-8/5

0 = 2t - 8/5

8/5 = 2t

16/5 = t

3.2 = t

Answer: 36, 36

Step-by-step explanation:

Answer:

The correct answer is option B.  17

Step-by-step explanation:

It is given that, ZX bisects ∠WZY. If the measure of ∠YXZ is (6m – 12)°

To find the value of m

From the figure we can see that, triangle WYZ is an isosceles  triangle.

ZW = ZY

Then <YXZ = <WXZ = 90°

It is given ∠YXZ  = (6m – 12)°

(6m – 12)° =  90°

6m = 90 + 12  = 102

m = 102/6 = 17

Therefore the value of m = 17

The correct answer is option B.  17

Answer:

its 17. so B

Step-by-step explanation:

just did it

Answer: x=20/3=6.67

Step-by-step explanation:

To solve proportions, the most useful way is to use [cross multiplication], where we not multiply horizontally but as diagonally.

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

Given

x:10=9:6

Cross Multiply

9·x=6·10

9x=60

Divide 9 on both sides

9x/9=60/9

x=20/3=6.67

Hope this helps!! :)

Please let me know if you have any questions

Answer:

1. En las competencias de atletismo se miden los kilómetros que se van a correr.

2.Al comprar tela en un almacén te dicen cuántos metros quieres.

3.En la obra los arquitectos y diseñadores miden las distancias que hay entre paredes para poder saber cuánta pintura se les va en la decoración.

4.Al cambiar una puerta tenemos que medir la altura y el ancho del hueco donde va a irinstalada.

Answer:

y = 4/3x-7/3

Step-by-step explanation:

Slope intercept form is y=Mx+b; m=slope & b= y intercept

y=-4/3x+b

Now substitute x & y with the point given

(-9)=-4/3(5)+b

-9= -20/3+b

+20/3 +20/3

-7/3=b

Now substitute this into the original equation

y = 4/3x-7/3

Answer:

14

Step-by-step explanation:

-4,-5

2,3

-4-2= -6

-5-3= -8

-6+-8= 14

Answer:

the answer to this question is 10

Step-by-step explanation:

May i have brainliest

Answer:

This problem has been solved: ... a department store polled 700 shoppers regarding whether or not they made a purchase and whether or not they were pleased ... Of those who made no purchase, 201 were happy with the service and 215 were not. ... We know that number of event of a purchase and a happy with service is.

Step-by-step explanation:

Answer:

Volume = 2,258.67 cm³

Step-by-step explanation:

Volume of the object = volume of hemisphere + volume of cylinder

= ⅔πr³ +πr²h

Where,

π = 22/7

r = 7 cm

h = 10 cm

Volume = (⅔*22/7*7³) + (22/7*7²*10)

Volume = 2,258.67 cm³

Answer:

-3.6 degrees

Step-by-step explanation:

Since we need to find the temperature that is 3 miles above ground we first need to multiply the distance above ground by the decrease in temperature per mile.

3 * 5.2 = 15.6

Now that we have the total decrease in temperature at that altitude we subtract it from the temperature at ground level. This gives us the final temperature at 3 miles above the ground.

12 - 15.6 = -3.6

Finally, we can see that the temperature is -3.6 degrees

Answer:

answer would be (1,-1)

Step-by-step explanation:

Dialation means to multiply, so u would multiply the point where D is so in the graph it shows D is on 2, -2 so you would multiply 2 by 1/2 and -2 by 1/2 which would give you (1, -1)

Answer:

(x,y): (6 , -3) or (-30/7 , 33/7)

Step-by-step explanation:

6x + 8y = 12

x = y + 9 or   y = x+ 9

if x = y+9

6*(y+9) + 8y = 12

14y = -42

y = -3 and x = 6

if y = x+9

6x + 8*(x+9) = 12

14x = -60

x = -30/7   and y = 33/7

Answer:

18(x + 2)

Step-by-step explanation:

-4/5 ( 30x -  40) + (42x + 4) = -24x + 32 + 42x + 4 = 18x + 36 = 18(x + 2)

Answer:

18x+36

Step-by-step explanation:

1. Simplify  \frac{4}{5}(30x-40)54(30x−40)  to  \frac{4(30x-40)}{5}54(30x−40).

-\frac{4(30x-40)}{5}+42x+4−54(30x−40)+42x+4

2. Factor out the common term 1010.

-\frac{4\times 10(3x-4)}{5}+42x+4−54×10(3x−4)+42x+4

3. Simplify  4\times 10(3x-4)4×10(3x−4)  to  40(3x-4)40(3x−4).

-\frac{40(3x-4)}{5}+42x+4−540(3x−4)+42x+4

4. Simplify  \frac{40(3x-4)}{5}540(3x−4)  to  8(3x-4)8(3x−4).

-8(3x-4)+42x+4−8(3x−4)+42x+4

5. Expand by distributing terms.

-(24x-32)+42x+4−(24x−32)+42x+4

6. Remove parentheses.

-24x+32+42x+4−24x+32+42x+4

7. Collect like terms.

(-24x+42x)+(32+4)(−24x+42x)+(32+4)

8. Simplify.

18x+3618x+36

hope this helps

The image is blurry

Step-by-step explanation:

Answer:

It might be 8 v?

Step-by-step explanation:

Answer:

17

Step-by-step explanation: