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velikii [3]
3 years ago
15

On the first day of your garage sale, you earned 12x+9 dollars. The next day you earned 22x dollars. Is it possible you earned t

he same amount each day? Explain.
Mathematics
1 answer:
Mrac [35]3 years ago
4 0
No, no value for x will result in you getting the same amount of money
I.e. on the first day if x =2 you earn 33. on the second day you would've earned 44. Of course this may be wrong so best to double check
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Pls help me solve this
VARVARA [1.3K]

Answer:

Step-by-step explanation:

5\frac{5}{6} * 4\frac{1}{2}

=5*6+5/6 * 4*2+1/2

=35/6 * 9/2

=35*9/6*2

=315/12

=105/4

=26\frac{1}{4}

5 0
3 years ago
Two hot air balloons are traveling along the same path away from a town
mariarad [96]

Answer:

A

Step-by-step explanation:

the answer is A because I got it right on my test

7 0
3 years ago
Read 2 more answers
Which coordinate point is a solution to the linear equation? (The graph counts by 1s)
Harman [31]

Answer:

the point through which it passes i.e (1,5)

5 0
2 years ago
Read 2 more answers
2. Ariana has created a paper airplane for her physics class at school where all the students will be testing their planes by se
sergiy2304 [10]

Answer:

2. The airplane will crash into the ground after 5 seconds.

3. The domain of the function is [0,30] and range of the function is [-\infty,900].

Step-by-step explanation:

2.

Ariana initial attempt is modeled by the function,

h(x)=x^2-12x+35

where, h is the height in feet and x is the time in seconds of the paper airplanes path.

If airplane crash into the ground, then h(x)=0,

0=x^2-12x+35

0=x^2-7x-5x+35

0=x(x-7)-5(x-7)

0=(x-7)(x-5)

Equate each factor equal to 0.

x=5,7

Therefore the airplane will crash into the ground after 5 seconds.

3.

The height of the rocket in meters is modeled by the function shown below, where t is time in seconds.


h(t)=-4t^2+120t

The value of t must be positive because time can not be negative.

Find the zeros of the function.

0=-4t(t-30)

t=0,30

The leading coefficient is negative, so the it is a downward parabola. Since the zeros of the function are 0 and 30, therefore the function is negative before 0 and after 30.

The height can not be negative, so the domain of the function is

0\leq t\leq 30

The vertex of a downward parabola is the maximum point.

Vertex of a parabola,

(\frac{-b}{2a},h(\frac{-b}{2a}))

(\frac{-120}{2(-4)},h(\frac{-120}{2(-4)}))

(15,h(15))

Put t=15 it in the equation.

h(15)=-4(15)^2+120(15)=900

(15,900)

The range of the function is

[-\infty,900]

Therefore the domain of the function is [0,30] and range of the function is [-\infty,900].

8 0
3 years ago
The product of a number and 4 increased by 8 is -36
LekaFEV [45]
X4 + 8 = -36
x4 = -44
x = -11

(-11)4 + 8 = -36
-44 + 8 = -36
-36 = -36
4 0
3 years ago
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