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ivanzaharov [21]
2 years ago
8

Please help this question is really confusing!

Mathematics
1 answer:
antoniya [11.8K]2 years ago
4 0
X< or equal 10 feet : 8 inches  ( x -number of steps)
10 feet=120 inches
x< or equal 120 in. :8 in.
x < or equal 15

if the step of the stairway is increasing the number of steps is decreasing, that is why I put the sign " < or equal"
You might be interested in
how long will it take an investment of $300 to triple, if the interest rate is 3.5% per year, compounded continuously?
Rashid [163]

Answer:

31 years to triple the investment

Step-by-step explanation:

Initial investment = 300

Triple amount that is final amount = 300*3= 900

rate of interest = 3.5 % = 0.035

we need to find out number of years (t)

for compounded continuously we use formula

A= Pe^{rt}

A is the final amount

P is the initial amount

r is the rate of interest

t is the number of years

900 = 300e^{0.035*t}

Divide both sides by 300

3 =e^{0.035*t}

take 'ln' on both sides

ln(3) =ln(e^{0.035*t})

ln(3) = 0.035t ln(e)

ln(e)= 1

\frac{ln(3)}{0.035} = t

t= 31.3889

Round to nearest whole number

t= 31 years


4 0
3 years ago
What is the equation of a line with a slope of 2 and a y intercept of -5?
Elanso [62]

Answer:

y=2x-5

Step-by-step explanation:

The slope is how you move so you could also call it m

The y intercept is where you begin so you could call it b

So every time you need to find the equation or which one is like the slope just remember m=move b= begin

y=mx+b

7 0
3 years ago
In a basketball game Anya makes 14 baskets. Some of these baskets were worth 2-points and others were worth 3-points. In total s
Tems11 [23]

Answer:

She made 12 two point basket.

Step-by-step explanation:

Assuming the number of 2 point basket is x and that of 3 point basket is y.

Based on the question the total numbers of basket is 14, that is x + y = 14 , and the total numbers of points is 30, which helps us with our second equation 2(x) +3(y)=30.

x + y = 14 eqn 1

2(x) +3(y)=30 eqn 2

Using elimination method multiplying eqn 1 by -3 and adding it to equation 2

-3x-3 y = -42 adding to eqn 2 gives

-x= -12

x=12. Which gives the number of the 2 points basket she made .

7 0
3 years ago
What is -|-4| equal to?
goblinko [34]
Simple, it is equal to |4|, you have to draw the lines around the 4 on the worksheet.
4 0
3 years ago
Find the exact circumference of a circle with the given radius.
11Alexandr11 [23.1K]

Answer:

6.5\pi\ in

Step-by-step explanation:

we know that

The circumference of a circle is equal to

C=2\pi r

we have

r=3\frac{1}{4}\ in

Convert to an improper fraction

r=3\frac{1}{4}=\frac{3*4+1}{4}=\frac{13}{4}\ in

substitute

C=2\pi(\frac{13}{4})

C=\frac{13}{2}\pi=6.5\pi\ in

3 0
2 years ago
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