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Inessa [10]
3 years ago
6

Which equation have the same value of × as 3/5(30×-15)=72 check all that apply

Mathematics
1 answer:
DanielleElmas [232]3 years ago
4 0

Answer:

Step-by-step explanation:

x=4.5

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Can someone Help me please
Inessa05 [86]

Answer:

the perimeter is 82 in.

Step-by-step explanation:

add all sides

4 0
3 years ago
Use the Distributive Property to solve the equation
melomori [17]

Answer:

x = -9

Step-by-step explanation:

- 2(x + 7) = 4

Distribute

-2x -14 = 4

Add 14 to each side

-2x-14+14 = 4+14

-2x = 18

Divide each side by -2

-2x/-2 = 18/-2

x = -9

3 0
3 years ago
Please answer numbers 32 and 33! Please show work and explain your answer!
mrs_skeptik [129]
12.
Add like terms from both trinomials:

4x^{2} + -2x^{2} = 2x^{2}
2x + -5x = -3x
-1 + 3 = 2

Combine these terms to get a new trinomial as your answer:

2x^{2} - 3x + 2


13. 
Subtract like terms from both trinomials (note that subtracting a negative is the same as adding it as a positive):

3x^{2} - 5x^{2} = -2x^{2}
-8x - -11x = -8x + 11x = 3x
-1 - -1 = -1 + 1 = 0

0 can be left out of the answer.

Combine these terms to get a binomial as your answer:

-2x^{2} + 3x
3 0
3 years ago
graph 1 graph 2 graph 3 graph 4 Which graph represents the function f(x) = x2 + 3x + 2? A. graph 1 B. graph 2 C. graph 3 D. grap
stiv31 [10]

Answer:

See attachment

Step-by-step explanation:

To see clearly the graph that represents

f(x) =  {x}^{2}  + 3x + 2

we rewrite in vertex form to get;

f(x) = (x +  \frac{3}{2})^{2}  -  \frac{1}{4}

This is a vertical parabola with vertex at (-1.5,-0.25) and opens upwards.

The required graph is shown in the attachment.

3 0
3 years ago
The radius of a sphere is multiplied by . What effect does this have on the volume of the sphere? A. The volume of the sphere is
Greeley [361]

Answer:

Option A. The volume of the sphere is multiplied by 1/343.

Step-by-step explanation:

The volume of a sphere can be obtained by the following formula:

V = 4/3πr^3

Let the initial volume (V1) of the sphere be:

V1 = 4/3πr^3 = (4πr^3)/3

Now, if we multiply the radius by 1/7, then the new volume (V2) of the sphere will be:

V2 = 4/3 x π x (1/7r)^3

V2 = 4/3 x π x 1/343r^3

V2 = (4πr^3)/1029

Now we determine the ratio of V2 : V1 as shown below:

V2/V1 = (4πr^3)/1029 ÷ (4πr^3)/3

V2/V1 = (4πr^3)/1029 × 3/(4πr^3)

V2/V1 = 3/1029

V2/V1 = 1/343

V2 = 1/343 x V1

Therefore, the volume of the sphere is multiplied by 1/343.

3 0
3 years ago
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