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DiKsa [7]
3 years ago
8

Hayley begins solving this problem by combining like terms. 3x + 5x = 10 Which problem begins the same way? A) 5x = 20 B) 3(x +

5) = 20 C) x/4 = 30 D) 3x - 2x = 10
Mathematics
1 answer:
joja [24]3 years ago
6 0

Solution: The given equation is →3 x+ 5 x=10

As you can see in the above equation on left side of equation the two terms are variables and on right side of equation the term is a constant term.Also you can see there is an operation called addition between the two variables on left side of equation.

In option (A), there is only a single term on right as well as left,so this can't be true.

In option (B), there is a constant and variable on left side of equation.So this is also untrue.

In option (C), variable being divided by numerator, so this is also untrue.

Option (D)3 x - 2 x = 10,  is surely correct , because there are two variables on left side of equation and one constant on right side of equation, and there is an operation called subtraction between them .

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Which expression is equivalent to √2x^5/18? Assume x > 0.
lord [1]
\sqrt{\dfrac{2x^5}{18}}=\sqrt{\dfrac{2}{18}\cdot x^2\cdot x^2\cdot x}=\sqrt{\dfrac{1}{9}\cdot x^2\cdot x^2\cdot x}=\sqrt{\dfrac{1}{9}}\cdot\sqrt{x^2}\cdot\sqrt{x^2}\cdot\sqrt{x}=\\\\\\=\dfrac{1}{3}\cdot x\cdot x\cdot\sqrt{x}=\boxed{\dfrac{x^2\sqrt{x}}{3}}

Answer A.
5 0
3 years ago
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If anyone could do this you be a literal life saver
mylen [45]

Answer:

Step-by-step explanation:

I really hope that solving a few trig questions can forestall death. That would be a really easy way to get rid of the C 19 restrictions and a myriad other diseases. BETTER LIFE THROUGH MATH will be our motto.

11) tan45 = x/13     x = 13

   cos45 = 13/y     y = 13√2

12) sin30 = 4/x      x = 8

     tan30 = 4/y     y = 4√3

13) sin60 = 21/x    x = 21(2/√3) = 42/√3

    y = xcos60 = (42/√3)(1/2) = 21/√3

14) cos45 = x/22   x = 22/√2

     sin45 = y/22   y = 22/√2

15) Height = 24sin30 = 12

cos 45 = 12/x   x = 12/√2

tan45 = y/12      y = 12

cos30 = z/24    z = 24(√(3)/2) = 12/√3

8 0
3 years ago
PLEASE PLEASE HELP WITH THIS
Phoenix [80]
Since triangles ABC and BCD are similar, we can establish a proportion between the lengths of corresponding sides:
\frac{AC}{BC} = \frac{BC}{CD}

We can infer from our picture that BC=m. Also we can find the length of AC by adding AD and CD:
AC=AD+CD
AC=11+7
AC=18

Lets replace the values in our proportion:
\frac{AC}{BC} = \frac{BC}{CD}
\frac{18}{m} = \frac{m}{7}
Solving for m:
m^2=(18)(7)
m^2=126
m= \sqrt{126}

We can conclude that the correct answer is: D \sqrt{126}
4 0
3 years ago
IF YOU ANSWER THIS RIGHT NOW ILL GIVE YOU 64 POINTS
blsea [12.9K]
180=5x-14+25
180=5x+11
169=5x
x=33.8, probably wrong tho:/
7 0
3 years ago
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In lixue's garden, the green pepper grew 5 inches in 3/4 month. At this rate, how many feet can grow in one month? (Let 5 inches
wlad13 [49]

Answer:

\frac{5}{9}ft

Step-by-step explanation:

Given parameters:

    number of inches of growth  = 5inches

     time duration  = \frac{3}{4}month

Unknown:

Number of feet that can grow in one month = ?

Solution:

To find the rate;

   Rate of growth  = \frac{number of inches of growth}{time duration}  

Insert parameters and solve;

  Rate of growth  = \frac{5}{\frac{3}{4} }  

 Rate of growth  = 5inches x \frac{4}{3}

                            = \frac{20}{3}inches/month

Now,

         Number of feet in one month:

           = rate of growth x 1 month

           =  \frac{20}{3}inches/month x 1 month

           =  \frac{20}{3}inches

Since;                   5inches  = \frac{5}{12}feet

                            \frac{20}{3}inches will give  \frac{\frac{5}{12} x \frac{20}{3} }{5} ft

                           = \frac{5}{9}ft

     

7 0
3 years ago
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