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3 years ago

Which of the following is a feature of a credit card?

Mathematics

2 answers:

vovikov84 [41]3 years ago

6 0

Where’s the following answers to pick from

miss Akunina [59]3 years ago

6 0

Answer:

More flexibility

Step-by-step explanation:

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6. What is the slope of a line perpendicular to the line whose equation is y = 2x -5?*

bonufazy [111]

Answer: -1/2

You get y = 2x - 5, so the slope is 2. Perpendicular lines have opposite-reciprocal slopes, so the slope of the line we want to find is -1/2.

6 0

3 years ago

Which number is both a factor and a multiple of 14? A, 1 7 B. 14 C.28

zloy xaker [14]

Answer:

Step-by-step explanation:

The multiples of 14

Answer : 14,28,42,56,70,84,98,112,126,140,154,168,182,196,210,224,238,252,266,280,294,308,322,336,350,364,378,392,406,420,434,448,462,476,490,504,518,532,546,560,574,588,602,616,630,644,658,672,686,

7 0

3 years ago

Lim x-0 (sin2xcsc3xsec2x)/x²cot²4x

sergij07 [2.7K]

By the definitions of cosecant, secant, and cotangent, we have

$\dfrac{\sin2x\csc3x\sec2x}{x^2\cot^24x}=\dfrac{\sin2x\sin^24x}{x^2\sin3x\cos2x\cos^24x}$

Then we rewrite the fraction as

$\dfrac{\sin2x}{2x}\left(\dfrac{\sin4x}{4x}\right)^2\dfrac{3x}{\sin3x}\dfrac{32}{3\cos2x\cos^24x}$

The reason for this is that we want to apply the well-known limit,

$\displaystyle\lim_{x\to0}\frac{\sin ax}{ax}=\lim_{x\to0}\frac{ax}{\sin ax}=1$

for $a\neq0$ . So when we take the limit, we have

$\displaystyle\lim_{x\to0}\cdots=\lim_{x\to0}\frac{\sin2x}{2x}\left(\lim_{x\to0}\frac{\sin4x}{4x}\right)^2\lim_{x\to0}\frac{3x}{\sin3x}\lim_{x\to0}\frac{32}3\cos2x\cos^24x}$

$=1\cdot1^2\cdot1\cdot\dfrac{32}3=\dfrac{32}3$

8 0

3 years ago

The graph of this quadratic function is a parabola. What is the x-coordinate of the vertex? y = x^2 - 3

Studentka2010 [4]

$\bf y = x^2 - 3\implies y=1x^2+0x-3\qquad now
\\\\\\
\textit{vertex of a parabola}\\ \\
\begin{array}{llccll}
y=&1x^2&+0x&-3\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)$

so, the x-coordinate is $\bf -\cfrac{{{ b}}}{2{{ a}}}$

5 0

3 years ago

Name a pair of vertical angles

Airida [17]

DAE
and
BAF
They are vertical angles

8 0

3 years ago

Read 2 more answers