4 years ago

Help !??!! am stuck

Mathematics

2 answers:

Vika [28.1K]4 years ago

7 0

Answer: 72 is the answer.

Step-by-step explanation:

Nikolay [14]4 years ago

5 0

Answer:

Step-by-step explanation:

you have to simplify both sides of the equation then isolate the variable

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1. What is the constant of proportionality? 2. What is the equation?

expeople1 [14]

Answer:

y = 1/3a

Step-by-step explanation:

y = ka

1 = 3k

k = 1/3

Confirm constant: (4-1)/(12-3) = 3/9 = 1/3

1 = 3(1/3) + b

1 = 1 + b

b = 0

y = 1/3x or 1/3a

7 0

3 years ago

How many ft is in 96 inch

morpeh [17]

Good evening,

96 inch=96*1/12 feet=96/12 feet=8 feet

6 0

3 years ago

The following table shows the probability of rolling the numbers 1 through 7

Marysya12 [62]

Answer:

2.0

Step-by-step explanation:

Couldn't really understnd what you wrote but I'll assume it's the standard deviation of a fair, 7-sided die

The standard deviation is just the square root of the variance (which is just the second moment minus the first moment squared)

The first moment (AKA the average is..)

$\frac{1+2+3+4+5+6+7}{7}=4$

The second moment is..

$\frac{1^2+2^2+3^2+4^2+5^2+6^2+7^2}{7}=20$

$\sqrt{20-4^2}=2$

4 0

3 years ago

A store has a 40\%40%40, percent off sale on headphones. With this discount, the price of one pair of headphones is \$36$36dolla

zloy xaker [14]

Let
X=the original price of the pair of headphones
then
if the % off sale is 40--------------- > (1-0.40)*X=$36
x=36/0.60=60

the answer is
the original price of the pair of headphones was $60

8 0

3 years ago

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Pls I need help someone pls help me

marta [7]

I think it’s 7.14 or atleast that’s what I got

7 0

3 years ago

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