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1 year ago

For the function y = 3x, if the input (x) is -2, what is the output (y) ?

Mathematics

1 answer:

Dmitry [639]1 year ago

5 0

Answer:

-6

Step-by-step explanation:

2*-3=-6

rule of thumb: a double negative equals a positive in multiplication or division

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You deposit $9,800 in a money-market account that pays an annual interest rate of 5.8%. The interest is compounded quarterly. Ho

Alona [7]

<span>$16,620.80

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3 years ago

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Seven customers enter a clothing store and are observed to determine if they will make a purchase. The store owner states that t

blondinia [14]

Answer: Mean = 5.25

Variance = 1.3125

Standard deviation = 1.456

Step-by-step explanation:

The mean and variance of a binomial distribution with parameters n (number of trials) and p ( the probability of getting success in each trial) is given by :-

$\text{Mean}=np\\\\\text{Variance}=np(1-p)$

Given : The total number of enter a clothing store : n=7

The probability of a customer making a purchase= 0.75

Now,

$\text{Mean}=7(0.75)=5.25\\\\\text{Variance}=7(0.75)(0.25)=1.3125\\\\\Rightarrow\ \text{Standard deviation}=\sqrt{1.3125}=1.14564392374\approx1.1456$

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3 years ago

if an exterior angle of a regular polygon measures 15 degrees how many sides does it have ?a.23. b.24. c.25

dimaraw [331]

Answer:

B.24

Step-by-step explanation:

we know,

exterior angle = 360°/n(where 'n' is number of sides)

then,

15° = 360°/n

n = 360°/15°

n = 24

3 0

3 years ago

Please please help me on how to do congruent figures!

AlexFokin [52]

Answer:

x = 5

Step-by-step explanation:

Since both triangles are similar hence;

m<CAB = m<CDE

Given theta

m<CAB = 50degrees

m<CDE = 10x

Substitute the given angles

50 = 10x

Swap

10x = 50

Divide both sides by 10

10x/10 = 50/10

x = 5

Hence the value of x is 5

7 0

2 years ago

aniked [119]

Answer:

$1.98

Step-by-step explanation:

$24.00 multilpy by 8.25%= $1.98. Then you add $24.00 + $1.98 + $25.98

The sales tax is $1.98

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2 years ago

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