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Ghella [55]
4 years ago
12

The high school, middle school, and elementary school are all on the same road. The distance from the high school to the middle

school can be represented by the expression 8.7x2+11.9x+3.5 . The distance from the middle school to the elementary school can be represented by the expression 3.23x2+2.7x+0.75 . What is the total distance from the high school to the elementary school?
Mathematics
2 answers:
lara31 [8.8K]4 years ago
8 0
I know how to work it out. The only problem is that your expressions don't make sense because you put the multiplication sign next to the addition sign and that can't work.
Margarita [4]4 years ago
6 0

Answer:

what do you mean in this question plus what are you asking I don't get it at all.

Step-by-step explanation:

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What is the height of the tree show all work
poizon [28]

Answer:

x=32.91

Step-by-step explanation:

Given: Triangle

Find: x

_______

Tan(35°)=x/47

x=tan(35)×47

x=0.7×47

x=32.91

Hope it helps!

3 0
3 years ago
Read 2 more answers
32^{3x+5}=8^{x−1} I need help plz
Elena L [17]

Answer:

The value of x for the given expression is \dfrac{- 7}{3}

Step-by-step explanation:

Given as :

The expression is

(32)^{3 x + 5} = (8)^{ x - 1}

Now,

∵ (2)^{5} = 32

And  (2)^{3} = 8

So, (2^{5})^{3 x + 5} = (2^{3})^{x - 1}

Or, 2^{15 x + 25} =  2^{3 x - 3}

<u>Here , on both side base is 2 , so we remove common base 2</u>

∴ Equation can be written as

15 x + 25 = 3 x - 3

Or, 15 x - 3 x = - 25 - 3

Or, 12 x = - 28

∴  x = \dfrac{- 7}{3}

So, The value of x = \dfrac{- 7}{3}

Hence, The value of x for the given expression is \dfrac{- 7}{3} Answer

8 0
3 years ago
X/3-15=-2 solve for x
Otrada [13]

Answer:

x = 45

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

x/3-(15)=0

Step  1  : <u>Simplify</u>

\frac{x}{3}      

Equation at the end of step  1  :

\frac{x}{3} -  15  = 0    

Step  2  :

<u>Rewriting the whole as an Equivalent Fraction :</u>

Subtracting a whole from a fraction

Rewrite the whole as a fraction using  3  as the denominator :            

15=\frac{15}{1} =\frac{15*3}{3}

<u>Equivalent fraction :</u> The fraction thus generated looks different but has the same value as the whole

<u>Common denominator : </u>The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

\frac{x-(15*3)}{3} =\frac{x-45}{3}

Equation at the end of step  2  :

\frac{x-45}{3} =0

Step  3  :

When a fraction equals zero :

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.

Here's how:

\frac{x-45}{3}*3=0*3

Now, on the left hand side, the  3  cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

  x-45  = 0

Solving a Single Variable Equation :

<u>Solve  :</u>    x-45 = 0

Add  45  to both sides of the equation :

x = 45

One solution was found :

x = 45

3 0
3 years ago
Umm yea help me please:)
yarga [219]
Just round the decimal up

8 0
3 years ago
What is the first step in solving the following equation
Naily [24]

Answer:

The first step in solving the equation is "set each binomial factor equal to zero" ⇒ 3

Step-by-step explanation:

To solve a quadratic equation y = ax² + bx + c

  • Put y = 0
  • Factorize it into two binomial factors (x ± m)(x ± n)
  • Equate each binomial factor by 0 to find the values of x
  • The values of x are the solution of the equation

∵ The equation is (x + 2)(x - 3) = 0

∵ The equation equated by 0

∵ It is factored into 2 binomial factors (x + 2) and (x - 3)

- The next step is equated each factor by 0 to find the values of x

∴ The 1st step in solving (x + 2)(x - 3) = 0 is set x + 2 = 0 and

   x - 3 = 0

The first step in solving the equation is "set each binomial factor equal to zero"

8 0
3 years ago
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