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2 years ago

Look at the table of values below.

Mathematics

2 answers:

Karo-lina-s [1.5K]2 years ago

6 0

Y = 4x - 1

4(1) - 1 = 3
4(2) - 1 = 7
4(3) - 1 = 11

PtichkaEL [24]2 years ago

3 0

Answer:

$y=4x-1$

Step-by-step explanation:

x y

1 3

2 7

3 11

The given table is a linear because the difference in y values is a constant

$7-3=4$

$11-7=4$

constant value is the slope that is m=4

Linear equation is in the form of $y=mx+b$

we know slope m is 4

Now we find out b using the value of x and y given in the table

Plug in x=1, y=3 and m= 4

$y=mx+b$

$3=4(1)+b$

$3=4+b$ , subtract 4 from both sides

$b=-1$

So the equation that represents the table is

$y=4x-1$

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Let's consider the time as a discrete variable with an increment of 1 minute. You arrive at a bus stop at 10 AM, knowing that th

Dafna11 [192]

Answer:

a) 2/3

b) 1/3

Step-by-step explanation:

Let X be the random event that measures the time you will have to wait.

Since time is uniformly distributed between 10 and 10:30 in intervals of 1 minute

P(n < X ≤ n+1) = 1/30 for every minute n=0,1,...29.

P( X > 10) = 1 - P(X ≤ 10) = 1 - 10/30 = 2/3

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2 years ago

QUESTION 10

alexandr402 [8]

Answer:

let the grade points be a,b,c

a+b+c=258

b=c+10( since she noticed that on tests two and three,she scored 10 points fewer).

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2 years ago

Read 2 more answers

When you calculate the number of permutations of n distinct objects taken r at a time, what are you counting?.

expeople1 [14]

Answer:

The number of ordered arrangements of n objects taken r at a time.

Step-by-step explanation:

8 0

1 year ago

Which option lists am expression that is not equivalent to 4^2/3

Vesnalui [34]

remember that

$x^{\frac{a}{b}}=\sqrt[b]{x^a}$

also $x^{-a}=\frac{1}{x^a}$

and $(a^b)^c=a^{bc}$

$4^{\frac{2}{3}}$

first one, that one is clearly not equal since 0.25≠4

2nd one, 0.25=1/4, so $0.25^{\frac{-2}{3}}=(\frac{1}{4})^{\frac{-2}{3}=$ $\frac{1}{(\frac{1}{4})^{\frac{2}{3}}}=4^{\frac{2}{3}}$ , which matches

3rd one, $\sqrt[3]{16}=\sqrt[3]{4^2}=4^{\frac{3}{2}}$ , which matches

4th one $(\sqrt[3]{4})^2=(4^{\frac{1}{3}})^2=4^{\frac{2}{3}}$ which matches

answer is $0.25^{\frac{2}{3}}$

4 0

3 years ago

Sylvia invested 500 in an account compounded annually with an interest rate of 8%. Manuel invested 600 in an account with a comp

il63 [147K]

Answer:

Sylvia's investment would double first

Step-by-step explanation:

The number of years it takes for amount invested to double itself using the 72 rule is 72 divided by rate of interest as computed below:

Sylvia investment:

Sylvia's investment would double in 9 years' time (72/8)

Manuel's investment"

Manuel investment of $600 would double itself in 9.9 years' time (72/7.25)

From the above analysis,Sylvia's investment of $500 at the 8% rate of interest would double first

8 0

2 years ago