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3 years ago

9

john has $305, and he is spending $3 each day. which algebraic expression describes this situation, where d represents the numbe

r of days?

1 answer:

Artist 52 [7]3 years ago

8 0

The answer whould be like this

305 - 3d

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(4.7) and (6,10) find slope

hichkok12 [17]

Answer: $3/2$

<u>Use the slope formula</u>

$y_{2}-y_{1}/x_{2}-x_{1}$

$10-7/6-4$

$=3/2$

<u>Note</u>

$(x_{1},y_{1} )=(4,7)\\(x_{2},y_{2} )=(6,10)$

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3 years ago

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Which of the following is not a characterstic of the sampling distribution of a sample statistic

natita [175]

Answer:

The samples are all drawn from the sample population. Is the not the characteristics of the sampling distribution of a sample statistic. The correct option is b.

Step-by-step explanation:

Samples are drawn from the population not from the sample population.

Therefore drawing samples from a sample population is not a characteristics of the sampling distribution of a sample statistic.

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3 years ago

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre

wel

Answer:

$z=\frac{15\sqrt{3}}{2}$

Step-by-step explanation:

In leftmost triangle:

opposite side =y

adjacent=a

now, we can use trig formula

$tan(60)=\frac{y}{a}$

now, we can solve for y

$y=atan(60)$

In rightmost triangle:

adjacent=b

opposite=y

a+b=15

b=15-a

now, we can use trig formula

$tan(30)=\frac{y}{15-a}$

now, we can solve for y

$y=(15-a)tan(30)$

now, we can set them equal

and then we can solve for a

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$\sqrt{3}a\cdot \:3=\frac{\sqrt{3}\left(15-a\right)}{3}\cdot \:3$

$4\sqrt{3}a=15\sqrt{3}$

$a=\frac{15}{4}$

now, we can find b

$b=15-\frac{15}{4}$

$b=\frac{45}{4}$

now, we can use trig formula

$cos(30)=\frac{b}{z}$

now, we can find z

$z=\frac{\frac{45}{4}}{cos(30)}$

we can simplify it

and we get

$z=\frac{15\sqrt{3}}{2}$

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3 years ago

There are 1200 students at Sophie’s school. One student’s name will be drawn at random to win a new bike. Hannah and Ethan are S

givi [52]

Answer:

1/400

Step-by-step explanation:

3/1200 = 1/400

1) Sample space would consist of the 1200 names of the students

2) out of those 1200 outcomes, this event composes of three outcomes which are:

1) Sophie

2) Hannah

3) Ethan

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3 years ago

James can finish a job in 1.5 hours. Jane can finish the same job in one hour. How long will it take them to finish this job if

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An hour and 15 minutes i believe. not 100% though

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