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charle [14.2K]
3 years ago
6

Expanded form 3x(4-9)

Mathematics
1 answer:
ivanzaharov [21]3 years ago
6 0

Answer:

-15x

Step-by-step explanation:

1) distribute "3x" with each term inside the parantheses

3x*4

3x*-9

12x-27x=-15x

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Find the value of x and y that satisfy both equalities x/5=y/3 and 12/y=4/5 HURRY!!!!
Vika [28.1K]

x=25,y=15 Not to sure abt this answer but I think I got it

7 0
3 years ago
A right triangle has a leg of 11 and a hypotenuse of 16. Find the missing leg (in simplest radical form)
igomit [66]

Answer:

11^2 + b^2 = 16^2

121 + b^2  = 256

b^2 = 135

b = 3 X q(15)

Step-by-step explanation:

8 0
3 years ago
your family is driving from cincinnati to st louis. the graph relates your distance from st.louis d in miles and travel time h (
rewona [7]

The solution is about a distance-time graph. The interpretation of the graph is that it took the family 6 hours to travel a distance of 360 miles. Note that the distance is plotted on y-axis and time on the x-axis.

<h3>What is a distance-time graph?</h3>

A distance time graph is a simple graph that shows the relationship between the time travelled the distance covered while doing do.

The slope-intercept form is

y= mx+b−⋯(1)

The y-intercept is 360

⇒b = 360; and m = −60

Substituting the value of m = −60

and b = 360

in (1) above,

⇒y = −60x  +360

The x-intercept is

y = 0,

⇒0= −60x+360

hence, x=6

The y-intercept is

x=0

⇒y=−60(0)+360

⇒y=360

In conclusion, the x - intercept is the time in hours between Cincinnati and St. Loui: and

The  y - intercept is the distance between Cincinnati and St. Louis.

Learn more about distance-time graphs at:
brainly.com/question/13877898
#SPJ1

6 0
2 years ago
A deposit of 5500 at 6% for 3 years equals
Triss [41]
What are we supposed to solve...?
6 0
3 years ago
Read 2 more answers
Type the correct answer in the box. Use numerals Instead of words. If necessary, use / for the fraction bar.
Zielflug [23.3K]

Using an exponential function, it is found that the value of David's Investment will be at least $415 after a period of 20 years.

<h3>What is an exponential function?</h3>

An increasing exponential function is modeled by:

A(t) = A(0)(1 + r)^t

In which:

  • A(0) is the initial value.
  • r is the growth rate, as a decimal.

In this problem, the initial value and the growth rate for his investment are given by:

A(0) = 230, r = 0.03.

Hence, the value after t years is given by:

A(t) = 230(1.03)^t

Then, the value will be of at least $415 when:

A(t) \geq 415

230(1.03)^t \geq 415

(1.03)^t \geq \frac{415}{230}

\log{(1.03)^t} \geq \log{\frac{415}{230}}

t\log{1.03} \geq \log{\frac{415}{230}}

t \geq \frac{\log{\frac{415}{230}}}{\log{1.03}}

t \geq 20

More can be learned about exponential functions at brainly.com/question/25537936

#SPJ1

4 0
2 years ago
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