Ask question

Ask question

All categories

ArbitrLikvidat [17]

3 years ago

13

A floor plan is drawn using a scale of 3cm/15ft what length is represented by 1 centimeter ?

1 answer:

vladimir1956 [14]3 years ago

5 0

5cm sounds about right

You might be interested in

What temperature is 10° higher than -16°

sergij07 [2.7K]

Answer:

10 degrees is greater than -16 degrees negative is below 0

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Given the function f(x) = 4(x+3) − 5, solve for the inverse function when x = 3.

natulia [17]

$f(x)=4(x+3)-5 \\ f(x)=4x+12-5 \\ f(x)=4x+7 \\ \\
\hbox{solve for x:} \\
y=4x+7 \\
y-7=4x \\
x=\frac{y-7}{4} \\ \\
\hbox{swap x and y:} \\
y=\frac{x-7}{4} \\ \\
f^{-1}(x)=\frac{x-7}{4} \\
f^{-1}(3)=\frac{3-7}{4}=\frac{-4}{4}=-1 \\
\boxed{f^{-1}(3)=-1}$

8 0

3 years ago

Identify the data set that could be quadratic. HELP ASAP!!

My name is Ann [436]

Answer:

the 3rd one (:

Step-by-step explanation:

4 0

3 years ago

A jar contains 100 coins. If it is very unlikely that you will randomly choose a quarter out of the jar, how many quarters could

lidiya [134]

Answer:

10

Step-by-step explanation:

5 0

2 years ago

What are the solutions of the equation (2x + 3)2 + 8(2x + 3) + 11 = 0

Tom [10]

Answer:

$x=\frac{-7-\sqrt{5}}{2}$ or $x=\frac{-7+ \sqrt{5}}{2}$

Step-by-step explanation:

The given equation is

$(2x+3)^2+8(2x+3)+11=0$

Let us treat this as a quadratic equation in $(2x+3)$ .

where $a=1,b=8,c=11$

The solution is given by the quadratic formula;

$(2x+3)=\frac{-b\pm \sqrt{b^2-4ac} }{2a}$

We substitute these values into the formula to obtain;

$(2x+3)=\frac{-8\pm \sqrt{8^2-4(1)(11)} }{2(1)}$

$(2x+3)=\frac{-8\pm \sqrt{64-44} }{2}$

$(2x+3)=\frac{-8\pm \sqrt{20} }{2}$

$(2x+3)=\frac{-8\pm2\sqrt{5} }{2}$

$(2x+3)=-4\pm \sqrt{5}$

$(2x+3)=-4-\sqrt{5}$ or $(2x+3)=-4+ \sqrt{5}$

$2x=-3-4-\sqrt{5}$ or $2x=-3-4+ \sqrt{5}$

$2x=-7-\sqrt{5}$ or $2x=-7+ \sqrt{5}$

$x=\frac{-7-\sqrt{5}}{2}$ or $x=\frac{-7+ \sqrt{5}}{2}$

5 0

3 years ago