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3 years ago

At how many points does the graph of the function below intersect the X axis?

Mathematics

1 answer:

masha68 [24]3 years ago

6 0

The answer would be C.2

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I need help and if you can’t see the letters zoom in

Elis [28]

Answer:

3) 45°

4) 135°

5) <WAX and <XAZ

6) <WAX and <WAU

7) <WAX and <YAU

8) <WAX and <XAZ

Step-by-step explanation:

3) 45°

4) 135°

5) <WAX and <XAZ

6) <WAX and <WAU

7) <WAX and <YAU

8) <WAX and <XAZ

7 0

3 years ago

Store A sells 3 candy bars for $3.45.

kenny6666 [7]

Answer:

Store C

Step-by-step explanation:

$7.56÷7=$1.08 a candy bar

6 0

3 years ago

Find the volume of the cone whose base is shown and whose altitude is 8 meters.

Aloiza [94]

$\bf \textit{volume of a cone}\\\\
V=\cfrac{\pi r^2 h}{3}\implies V=\stackrel{base~area}{\pi r^2}\cdot \cfrac{1}{3}\stackrel{height}{h}\\\\
-------------------------------\\\\
\textit{base of this cone}\\\\
B=\stackrel{a~square}{5\cdot 5}+\stackrel{semi-circle}{\frac{\pi r^2}{2}}\implies B=25+\frac{\pi 3^2}{2}\\\\\\ B=\stackrel{square}{25}+\stackrel{semi-circle}{\frac{9\pi }{2}}
\\\\\\
\textit{height of this cone is just 8}\\\\
-------------------------------\\\\$

$\bf \textit{volume of this cone}\\\\
V=B\cdot \cfrac{1}{3}h\implies V=\left( 25+\cfrac{9\pi }{2} \right)\left( \cfrac{8}{3} \right)
\\\\\\
V=\cfrac{200}{3}+\cfrac{3\pi\cdot 4 }{1}\implies V=\cfrac{200}{3}+12\pi$

7 0

4 years ago

Consider estimating a population proportion p. What is the most conservative sample size (erring on the large size) required in

just olya [345]

Answer:

The most conservative sample size is 2401.

Step-by-step explanation:

We are given the following in the question:

We are not given any approximation of s]ample proportion, thus,

$\hat{p} = 0.5$

We have to construct a 95% confidence interval.

Margin of error = 2% = 0.02

Formula for margin of error =

$z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

Putting values, we get,

$0.02 = 1.96\times \sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\0.02 = 1.96\times \sqrt{\dfrac{0.5(1-0.5)}{n}}\\\\\sqrt{n} = 1.96\times \dfrac{\sqrt{0.5(1-0.5)}}{0.02}\\\\\sqrt{n}=49\\n = 2401$

Thus, the most conservative sample size is 2401.

3 0

3 years ago

What 4 letter subject in school requires you to add, subtract, multiply and divide? Hint: 4 letter word (Answer this correctly t

Elodia [21]

The answer is "Math".....but technically the official name for it is Mathematics.

5 0

3 years ago

Read 2 more answers