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3 years ago

Can you helo me with number 8?

Mathematics

2 answers:

kow [346]3 years ago

8 0

Answer:

all work is shown and pictured

NikAS [45]3 years ago

6 0

Answer:

$p = \frac{2}{5}$

Step-by-step explanation:

3(5p - 3) = 5(p - 1)

Try getting the x's all on one side

15p - 9 = 5p - 5 Start by adding 9 to both sides

+ 9 + 9

15p = 5p + 4 Then subtract 5p from both sides

-5p -5p

10p = 4 Divide both sides by 10 to get p

$\frac{10p}{10} = \frac{4}{10}$

$p = \frac{4}{10} or \frac{2}{5}$

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Convert the mixed number 1 1/2 to an improper fraction

Alona [7]

Answer:

1 1/2 = 3/2

Step-by-step explanation:

7 0

2 years ago

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A city council member wanted to know how her constituents felt about a planned resining she randomly selected 75 names from the

Arturiano [62]

Answer:

Step-by-step explanation:

Hello!

A city council member wanted to know how her constituents felt about a planned rezoning. She randomly selected 75 names from the city phone directory and conducted a phone survey.

Identify the population and sample in this setting.

The population of interest is confirmed by all the individuals or experimental units that the researcher wants to study. The sample is normally a portion of the population randomly selected and representative of it. Since in most cases it is impossible to study the whole population the sample is taken. Then after the experiment is conducted, the conclusions reached are extrapolated to the whole population.

Normally is easier to identify the sample first and then the population, in this example, the sample is "75 names from the city phone directory" then the population will be "people registered in the city phone directory"

The correct option is the first one.

> The population is everyone listed in the city phone directory; the sample is the 75 people selected. CORRECT

> The population is residents of the city; the sample is the registered voters in the city. INCORRECT

> The population is registered voters in the city; the sample is everyone listed in the city phone directory. INCORRECT

I hope this helps!

4 0

3 years ago

A truck is 300 miles east of a car and is traveling west at the constant speed of 30 miles/hr meanwhile the car is going north a

Lerok [7]

Answer:

$d(t)=\sqrt{(300+30t)^2+(60t)^2}$

Step-by-step explanation:

Let t represents the time in hours,

We know that,

$Speed =\frac{Distance}{Time}$

$\implies Distance = Speed\times time$

Since, the speed of truck = 30 miles per hour,

So, the distance covered by the truck in t hours = 30t miles,

Similarly,

Speed of car = 60 miles per hour,

So, the distance covered by car in t hours = 60t miles,

∵ Truck is 300 miles east of the car initially,

Thus, the distance of the truck from the starting point = 30t + 300,

While the distance of the car from the starting point = 60 t,

Now, these two vehicles are going in the directions which are at right angled ( car is going north and truck is going west )

Using the Pythagoras theorem,

Distance between them after t hours,

$d(t)=\sqrt{(300+30t)^2+(60t)^2}$

Which is the required function.

3 0

3 years ago

A colored chip is yellow on one side and red on the other. The chip was flipped 50 times and landed on red side up 22 times. Wha

Elodia [21]

Answer:

44 %

Step-by-step explanation:

22 divided by 50 is 0.44 which is 44 percent

6 0

3 years ago

Complete the congruence statement for the figure shown. If the triangles cannot be shown congruent, type na in each blank.

Serjik [45]

Answer:

ΔABC≅ΔDEF by AAS (Angle-Angle-Side) Theorem

Step-by-step explanation:

We observe that $\angle A\cong\angle D$ , $\angle C\cong \angle F$ for the included angle, and $BC\cong EF$ for our side. Thus, the AAS Theorem proves that the triangles are congruent to each other

7 0

2 years ago

Can you helo me with number 8?​

Can you helo me with number 8?