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3 years ago

12

Write your answer with no spaces and any fraction with “/“

1 answer:

Alona [7]3 years ago

6 0

Answer:

y= $\frac{1}{2}x-2$

Step-by-step explanation:

Because of the slope, we would assume that it is 1/2 because when you use rise over run, the graph rises 1 unit up and shifts 2 units to the right. The -2 is where the y-intercept is (0, -2) based on the picture seen above. The slope is also positive where it is going up instead of going down.

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We roll a pair dice 10,000 times. Estimate the probability that the number of times we get snake eyes (two ones) is between 280

Natali5045456 [20]

Answer:

0.3573 = 35.7%

Step-by-step explanation:

We roll a pair of dice 10,000 times so the mean and standard deviation is,

μ = 10000/36 =277.7 σ = $\sqrt{10000*\frac{35}{36^{2} } } =16.4$

$z_{1}$ = (280 - 277.7)/16.4 = .14

$z_{2}$ = (300 - 277.7)/16.4 = 1.35

Probablity (range)

0.3573

Z(low)=0.14 0.555766357

Z(upper)=1.36 0.91304644

6 0

3 years ago

Judy uses 12 tiles to make a mosaic. 8 of the tiles are blue. what fraction ,in simplest form, represents the tiles that are blu

gulaghasi [49]

2/3
You do 8/12 since it’s blue to mosaic tiles and both number divide by 4 so 8 divided by 4 is 2 and 12 divided by 4 is 3 so 2/3

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3 years ago

How many sixteenths are in 15 sixteenths

11Alexandr11 [23.1K]

There are 15 sixteenths in 15/16ths (think about it like decimals.)

4 0

3 years ago

Marco drew 24 pictures. He drew 1/6 of them in art class. How many pictures did Marco draw in art class?

kozerog [31]

24/6 is the amount of pictures drawn in art class. Your answer is 4

6 0

3 years ago

Read 2 more answers

an archaeologist in turkey discovers a spear head that contains 80% of its original amount of C-14. Find the age of the spear he

Genrish500 [490]

Answer:

The age of the spear head to the nearest year is 1845 years

Step-by-step explanation:

We know that

half life time of C-14 is 5730 years

so, h=5730

we can use formula

$P(t)=P_0(\frac{1}{2})^{\frac{t}{h} }$

now, we can plug value

$P(t)=P_0(\frac{1}{2})^{\frac{t}{5730} }$

an archaeologist in turkey discovers a spear head that contains 80% of its original amount of C-14

so,

$P(t)=0.80P_0$

we can plug it

$0.80P_0=P_0(\frac{1}{2})^{\frac{t}{5730} }$

now, we can solve for t

$0.80=(\frac{1}{2})^{\frac{t}{5730} }$

$\ln \left(0.8\right)=\ln \left(\left(\frac{1}{2}\right)^{\frac{t}{5730}}\right)$

$t=-\frac{5730\ln \left(0.8\right)}{\ln \left(2\right)}$

$t=1844.647$

So,

The age of the spear head to the nearest year is 1845 years

7 0

3 years ago