Ask question

Ask question

All categories

3 years ago

13

The math club members were throwing a pizza party and each person had the choice of two slices one topping. 1/2 of the students

wanted pepporonni , 1/4 wanted extra cheese, 1/8 wanted sausage and 4 want mushrooms. How many students were asked

2 answers:

Andrew [12]3 years ago

8 0

1/8 = 4 so then just multiply by 8 to get 32

My name is Ann [436]3 years ago

3 0

Well 1/8 is really actually 4 so then i guess you multiply that by 8 and get 32

You might be interested in

The claim is that the proportion of adults who smoked a cigarette in the past week is less than 0.30, and the sample statistics

IrinaK [193]

Answer: 0.84

Step-by-step explanation:

let p be the population proportion of adults who smoked a cigarette in the past week.

As per given , we have

$H_a: p$

Sample size : n= 1491

The sample proportion of adults smoked a cigarette= $\hat{p}=\dfrac{x}{n}=\dfrac{462}{1491}=0.30985915493\approx0.31$

The test statistic for proportion is given by :-

$z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

Substitute all the values , we get

$z=\dfrac{0.31-0.30}{\sqrt{\dfrac{0.30(1-0.30)}{1491}}}\\\\=\dfrac{0.01}{\sqrt{0.000141}}\\\\=\dfrac{0.01}{0.011874342087}=0.84261497731\approx0.84$

Hence, the value of the test statistic = 0.84

6 0

4 years ago

a submarine dives as shown in the diagram. to the nearest degree, determine the dive angle whose measure is X.

ollegr [7]

Answer:

75.96

Step-by-step explanation:

$Tan= \frac{opposite}{adjacent}$

$Tan X= \frac{500}{125}$

$Tan X ^{-1} (Tan X)= Tan X ^{-1}(\frac{500}{125} )$

Answer 75.96

3 0

3 years ago

HELP ON THIS PROBLEM!!<br><br> Solve the following 0deg< x< 360deg: cos x= cos 2x

blsea [12.9K]

Answer:

$x=0^\circ,120^\circ,240^\circ,360^\circ$

Step-by-step explanation:

<u>Use identities to set the equation up as a quadratic</u>

$\cos x=\cos 2x;\:0^\circ \leq x \leq 360^\circ\\\\\cos x=2\cos^2 x-1\\\\0=2\cos^2 x-\cos x-1$

<u>Make the substitution u=cos(x) and solve the quadratic</u>

<u /> $0=2u^2-u-1\\\\0=(2u+1)(u-1)$

$\displaystyle 0=2u+1\\\\0=2\cos x+1\\\\-1=2\cos x\\\\-\frac{1}{2}=\cos x\\\\120^\circ,240^\circ=x$

$0=u-1\\\\0=\cos x-1\\\\1=\cos x\\\\0^\circ,360^\circ=x$

Hence, $x=0^\circ,120^\circ,240^\circ,360^\circ$

7 0

2 years ago

What is the value of √144

Marysya12 [62]

Answer:

12!

Step-by-step explanation:

7 0

4 years ago

Read 2 more answers

What is bigger 0.75 or 1 3/4

Simora [160]

1 3/4 is greater than 0.75 because 1 3/4 is 1.75 and it is greater than 0.75

5 0

3 years ago