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2 years ago

10

PLEASE HELP, GIVING BRAINLIST TO ANYONE WHO ANSWERS

1 answer:

pogonyaev2 years ago

8 0

Here's the answer .. feel free to ask any more qns.

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HELP PLEASE!!!!!!!!!!!!

Serggg [28]

C = total cents
C = 30 + n
I think that's it. Hope it helps you.

8 0

2 years ago

How many solutions does the system of linear equations have? Use the drop-down menus to explain your answer.

baherus [9]

1 solution
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2 years ago

Quadratic formula?<br><br> 2x^2-4x+2=0<br> A. 1 <br> B. -4<br> C. 6<br> D. -2<br> E. 2

Pavel [41]

The answer is A.) One

3 0

2 years ago

B/3+5=-2<br> Two Step Equation

Norma-Jean [14]

$\textsf{Hey there!}$

$\mathsf{\dfrac{b}{3}+5=-2}$

$\mathsf{STEP\ ONE:}$ $\textsf{Simplify BOTH sides of your equation}$

$\mathsf{LIKE: \ \dfrac{1}{3}b + 5 = -2}$

$\textsf{STEP TWO: SUBTRACT by 5 on your sides}$

$\mathsf{\dfrac{1}{3}b+5-5=-2-5}$

$\textsf{Cancel out: 5 - 5 because it gives you 0}$

$\textsf{Keep: -2 - 5 because it helps us solve for our b value}$

$\mathsf{-2 - 5 =-7}$

$\mathsf{New\ equation: \underline{\dfrac{1}{3}b = -7}}$

$\textsf{STEP THREE: MULTIPLY both sides by 3}$

$\mathsf{3 \times\dfrac{1}{3}b = 3\times-7}$

$\mathsf{Cancel\ out: 3\times\dfrac{1}{3}\ because\ it\ gives\ you\ 1}$

$\mathsf{Keep: 3\times-7\ because\ it\ helps\ solve\ for\ b}$

$\mathsf{3\times-7=-21}$

$\boxed{\textsf{Thus, your answer is most likely: \boxed{\mathsf{b = -21}}}}\checkmark$

$\text{Good luck on your assignment and enjoy your day!}$

~ $\frak{LoveYourselfFirst:)}$

6 0

2 years ago

An opinion poll asks a simple random sample of 100 college seniors how they view their job prospects. In all, 53 say "good." Doe

ValentinkaMS [17]

Answer:

We are tryng to proof if more than half of all seniors think their job prospects are good so that would be the alternative hypothesis and the complement rule would be the null hypothesis.:

Null hypothesis: $p\leq 0.5$

Alternative hypothesis: $p > 0.5$

Step-by-step explanation:

Information provided

n=100 represent the random sample ofcollege senior selected

X=53 represent the college seniors who say good

$\hat p=\frac{53}{100}=0.53$ estimated proportion of seniors who think their job prospects are good

$p_o=0.5$ is the value that we want to test

z would represent the statistic

$p_v$ represent the p value

System of hypothesis

We are tryng to proof if more than half of all seniors think their job prospects are good so that would be the alternative hypothesis and the complement rule would be the null hypothesis.:

Null hypothesis: $p\leq 0.5$

Alternative hypothesis: $p > 0.5$

The statistic is given by:

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

Replacing the info given we have:

$z=\frac{0.53 -0.5}{\sqrt{\frac{0.5(1-0.5)}{100}}}=0.6$

The p value for this case would be given by

$p_v =P(z>0.6)=0.274$

7 0

3 years ago