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spayn [35]
3 years ago
9

Find the Common Denominator of 3/12 and 7/12 show your work

Mathematics
2 answers:
marusya05 [52]3 years ago
6 0

Step-by-step explanation:

3/12 7/10

Make the Denominators same

3*5/12*5 = 15/60

7*6/10*6 = 42/60

Common Denominator is 60

ruslelena [56]3 years ago
4 0
The common denominator is already there 12 is the common denominator!! :)
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Let a= x^2 +4. Rewrite the following equation in terms of a and set it equal to zero.
swat32

Answer:

C and G

Step-by-step explanation:

(x^2+4)^2+32=12x^2+48 is written as (x^2+4)^2+32=12x^2+48.

We can simplify the expression using the term a by replacing x^2 + 4 with a.

(x^2+4)^2+32=12x^2+48\\(x^2+4)^2+32=12(x^2+4)\\a^2 + 32 = 12a\\a^2 - 12a + 32 = 0

This factors into (a-4)(a-8). Solve by setting each factor equal to 0 and solve for a.

a-4 = 0                 a=4

a-8=0                   a=8

4 0
3 years ago
Of the 50 students in the cafeteria, 7 have red hair. Suppose there are 750 students in the school. Write a proportion that coul
gulaghasi [49]

Given:

Of the 50 students in the cafeteria, 7 have red hair.

Total number of students = 750

To find:

The proportion that could be used to predict the number of students who have red hair.

Solution:

Let x represent the number of students who have red hair.

The ratio of student having red hair to the total number of students are

Ratio_1=\dfrac{7}{50}

Ratio_2=\dfrac{x}{750}

The number of students having red hair is proportional to the total number of students. So, the above ratios are equal.

\dfrac{x}{750}=\dfrac{7}{50}

Multiply both sides by 750.

\dfrac{x}{750}\times 750=\dfrac{7}{50}\times 750

x=7\times 15

x=105

Therefore, the required equation is \dfrac{x}{750}=\dfrac{7}{50} and the number of students who have red hair is 105.

7 0
3 years ago
Find the missing side lengths
MAXImum [283]

Answer:

<u>u</u><u> </u><u>is</u><u> </u><u>1</u><u>7</u><u>√</u><u>2</u><u> </u><u>and</u><u> </u><u>v</u><u> </u><u>is</u><u> </u><u>1</u><u>7</u>

Step-by-step explanation:

To find u:

{ \bf{ \sin( \theta) =  \frac{opposite}{hypotenuse}  }}

feed in the terms:

\sin(45 \degree)  =  \frac{17}{u}  \\  \\ u =  \frac{17}{ \sin(45 \degree) }   \\ \\ u = 17 \sqrt{2}

To find v:

\cos( \theta)  =  \frac{adjacent}{hypotenuse}

feed in the terms:

\cos(45)  =  \frac{v}{u}  \\  \\ v = u. \cos(45)  \\ v = (17 \sqrt{2} )÷( \sqrt{2} ) \\ v = 17

8 0
3 years ago
Write an expression that represents the volume of a rectangular-shaped box with a length 3 inches less than its height and a wid
slava [35]

Answer: h(h-3)(h+4)  

Step-by-step explanation:

To find the volume of rectangular-shaped box  we will have to multiply the length by the width by the height.

Given the statements  we can determine the  length with the equation

L = h -3  where l is the length and h is the height.

the width can also be represent by the equation

w = h + 4        

The height is is h and the length is h- 3  and the width is also h+4  so the expression will be    h(h-3)(h+4)

8 0
3 years ago
Ok ok I know I’m gonna ask this again so please ( you do have to get me all the names btw ) I’ll give you brain list
Tomtit [17]

Answer:

                 1. quadrilateral

     2.   kite                  3.   trapezoid    

          4.     parallelogram      5.  isosceles trapezoid    

6.  rhombus   7.  rectangle

       8.  square            

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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