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4 years ago

Solving Equations Discussion

1 answer:

3 0

1. Equations are:

3x + 2 = 5x + 8 and 7x + 2 = 7x - 4

2. The equation is:

2(32x - 2) = 2x + 36

64x - 4 = 2x + 36

3. You have to choose a classmate's question and answer.

4. You have to look at responses and comments.

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X^2-5x=14 solve for x

elixir [45]

Answer:

x=7, -2.

Step-by-step explanation:

x^2-5x=14

x^2-5x-14=0

factor out the trinomial,

(x-7)(x+2)=0

zero property,

x-7=0, x+2=0,

x=0+7=7,

x=0-2=-2

8 0

3 years ago

Read 2 more answers

If (x+30) and (3x+10)are co interior angle.Find the value of x<br><br><br>

Amiraneli [1.4K]

Answer:19

Step-by-step explanation:

3x3=9 then add by 10 giving u the sum of 19

3 0

3 years ago

Read 2 more answers

What is the scale factor, perimeter ratio, surface ratio, and the volume ratio?????????????????????????????

tamaranim1 [39]

Answer:

Scale factor = $\frac{4}{9}$

Perimeter ratio = 4 : 9

Surface area ratio = 16 : 81

Volume ratio = 64 : 729

Step-by-step explanation:

Volume ratio = $\frac{\text{volume of small prism}}{\text{Volume of large prism}}$

= $\frac{128}{1458}$

= $\frac{64}{729}$

= 64 : 729

Scale factor = $\sqrt[3]{\frac{\text{volume of small prism}}{\text{Volume of large prism}}}$

= $\sqrt[3]{\frac{64}{729}}$

= $\frac{4}{9}$

Perimeter ratio = Scale factor

= $\frac{4}{9}$

= 4 : 9

Surface area ratio = (Scale factor)²

= $(\frac{4}{9})^{2}$

= $\frac{16}{81}$

= 16 : 81

3 0

3 years ago

PPPLLLSSSS HHHUURRRYYY

Lostsunrise [7]

Answer:

c=20 or SU = 20

Step-by-step explanation:

I'M HURRRRYYYINNNNNG DON'TT WORRY!!! :D

Use the Pythagorean theorem:

a²+b²=c²

Plug it in:

12²+16²=c²

144+256=400

c²=400

c=√400

c=20

There did i finish on time!!? XD

6 0

3 years ago

Read 2 more answers

The ratio of horses to elephants in the circus is 8 to 7 if there are 16 horses in the circus then how many horses and elephants

dybincka [34]

30 because the original ratio would be 16 to 14 but that reduces to 8 to 7 and then you just double the 7 to get 14 and then you add 16 and 14 together to get the total number of horses and elephants.

7 0

3 years ago