All categories

3 years ago

The expression 2x2 + 12x + 10 represents a bird's height, in feet, x seconds after it leaves its nest,

Mathematics

1 answer:

marusya05 [52]3 years ago

8 0

The answer is A. You add the extra 10 feet to however high the bird flew from there

You might be interested in

What is the measure of 7 shown in the diagram below?

Korolek [52]

Answer:

Step-by-step explanation:

5 0

3 years ago

8÷2(2+2) is 16 right or is it 1

vivado [14]

the answers 16 if you need an explanation then ill comment one.....!

6 0

3 years ago

Read 2 more answers

4^x+2=1/2 solve for x (log equation)

lesantik [10]

$\log_ab=c\iff a^c=b\\\\4^{x+2}=\dfrac{1}{2}\qquad\text{use}\ a^{-1}=\dfrac{1}{a}\\\\(2^2)^{x+2}=2^{-1}\qquad\text{use}\ (a^n)^m=a^{nm}\\\\2^{2(x+2)}=2^{-1}\iff2(x+2)=-1\qquad\text{use distributive property}\\\\(2)(x)+(2)(2)=-1\\\\2x+4=-1\qquad\text{subtract 4 from both sides}\\\\2x=-3\qquad\text{divide both sides by 2}\\\\\boxed{x=-1.5}$

3 0

3 years ago

Write an equation of the line that is perpendicular to the line y = 1 2 x + 8 that passes through the point (4,6)

Katen [24]

Answer:

$\large\boxed{y=-2x+14}$

Step-by-step explanation:

$\text{Let}\ k:y=_1x+b_1\ \text{and}\ l:y=m_2x+b_2.\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\============================\\\\\text{We have}\ y=\dfrac{1}{2}x+8\to m_1=\dfrac{1}{2}.\\\\\text{Therefore}\ m_2=-\dfrac{1}{\frac{1}{2}}=-2.\\\\\text{The equation of the searched line:}\ y=-2x+b.\\\\\text{The line passes through }(4,\ 6).$

$\text{Put thecoordinates of the point to the equation.}\ x=4,\ y=6:$

$6=-2(4)+b\\\\6=-8+b\qquad\text{add 8 to both sides}\\\\b=14$

6 0

3 years ago

Read 2 more answers

X-1 / x-1 = 1<br> What is x?

lions [1.4K]

Answer:

$\large\boxed{x\in\mathbb{R}-\{1\}}\to\text{any real number except 1}$

Step-by-step explanation:

$\dfrac{x-1}{x-1}=1\\\\\text{Domain:}\ x-1\neq0\qquad\text{add 1 to both sides}\\\\x\neq1\\\\\text{We know:}\ \dfrac{a}{a}=1\ \text{for any real number except 0}.\\\\\text{Therefore}\ x\ \text{is any real number except 1}.$

4 0

3 years ago