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Ganezh [65]
3 years ago
9

Please provide steps

Mathematics
1 answer:
pentagon [3]3 years ago
5 0

1. 15 - 45 age range was the highest in attendance.

2. There are 20 people were between the ages of 5 and 15.

Solution:

The given image is a bar graph of ages of people attending a party.

(1) Highest attendance in age range:

In the bar graph, see the ages of highest pillars.

15 - 25, 25 - 35 and 35 - 45

Starting highest age 15.

Ending highest age 45.

So that 15 - 45 age range was the highest in attendance.

(2) In the 5 - 15 age pillar, see the corresponding frequency.

Frequency is 20.

So, there are 20 people were between the ages of 5 and 15.

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Solve 3x² + 4x = 2. (2 points)
uysha [10]

Answer:

Step-by-step explanation:

As it is a second order equation, it means that it has two possible answers and they are x_1 and x_2.

The famous quadratic formula for solving any second order equation is the following:

x_{1} = \frac{-b + \sqrt{b^2 - 4 ac}}{2a}\\x_{2}=\frac{-b - \sqrt{b^2 - 4 ac}}{2a}

Where a is the coefficient of x^2, b is the coefficient of x, and c is the free term. In other words,

a = 3\\b=4\\c=-2

as the equation should be in the following form:

a x^2 + bx+c = 0

Therefore the possible answer should be the following,

\frac{-4 + \sqrt{4^2 - 4*3*(-2)}}{2*3}=\frac{-4 +\sqrt{16 + 24}}{6} =\frac{-4 + \sqrt{40}}{6}=\\ \frac{-4 + \sqrt{4*10}}{6} = \frac{-4 + 2\sqrt{10}}{6}\frac{2*(-2 + \sqrt{10})}{2*3} = \frac{-2 + \sqrt{10}}{3}

by dividing the numerator and denominator by 2, we can deduce the following,

6 0
2 years ago
Help!! 30 points!!
erica [24]

Answer:

a. 47.6mph (distance divided by time = speed. divide each rowers distance by their speed, then add them all)

b. 1.26 minutes per mile (i used a calculator so i dunno how to explain)

let me know if this is right or not :)

6 0
3 years ago
Scott and Tom rent a boat at Stow Lake. They start at 10:15 and end at 11:45. The boat rental costs $1.50 for every 15 minutes.
dem82 [27]

Answer:they would pay a total amount of $9

Step-by-step explanation:

Scott and Tom rent a boat at Stow Lake. They start at 10:15 and end at 11:45. The number of hours for which they rented the boat would be

11:45 - 10:15 = 1 hour 30 minutes = 1.5 hours.

Converting to minutes, It becomes

60 + 30 = 90 minutes.

The boat rental costs $1.50 for every 15 minutes. Therefore, the total amount of money that they would pay is

90/15 × 1.5 = $9

8 0
3 years ago
If $190 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in
Eduardwww [97]

Answer:

answer is c) 295.01

hope this helps

5 0
3 years ago
Write the following ratio in simplest form 8 to 12
Nonamiya [84]

Answer:

2/3 or 2 to 3

Step-by-step explanation:

Good luck!

5 0
3 years ago
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