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3 years ago

Write the following sentences as algebraic expressions:

Mathematics

1 answer:

Kaylis [27]3 years ago

4 0

1) 4 + 6(x - 1)

2) 4(x²) - 3

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there are 239 people in the first six rows of a movie theater if the same number of peopkle are in the next six rows about how m

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If the same number of people are in 6 rows, and we're asked to find how many people are in 12 rows, we can simply multiply that number by 2.

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3 years ago

Debra found that 6 of the 24 students in her class own a cell phone what is th ratio of students that own a cell phone to studen

lesya692 [45]

There are 24 students in total.

6 own a cell, the rest does not, 24 - 6 is 18, so 18 do not.

$\bf 6:18\implies \cfrac{6}{18}\implies \cfrac{1}{3}$

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3 years ago

Maria had $3,500 and invested it into an account with an annual

Nina [5.8K]

Answer:

FV= $3,716.32

Step-by-step explanation:

Giving the following information:

Initial investment (PV)= $3,500

Interest rate (i)= 1.2% compounded monthly

<u>First, we need to determine the monthly nominal interest rate:</u>

Monthly interest rate= 0.012/12= 0.001

<u>Now, to calculate the future value after 't' months, we need to use the following formula:</u>

FV= PV*(1 + i)^t

<u>For example, for 60 months:</u>

FV= 3,500*(1.001^60)

FV= $3,716.32

8 0

3 years ago

Which is most precise 437 cm or 437 mm

LenaWriter [7]

437 mm is more precise

3 0

4 years ago

Read 2 more answers

The flight of a kicked football follows the quadratic function f(x)=−0.02x^2+2.2x+2, where f(x) is the vertical distance in feet

Sergio039 [100]

Answer:

110.9 feet

Step-by-step explanation:

The function that models the flight of the ball is

$f(x) = - 0.02 {x}^{2} + 2.2x + 2$ where f(x) is the vertical distance in feet and x is the horizontal distance the ball travels

If the ball hits the ground, then f(x)=0

$\implies - 0.02 {x}^{2} + 2.2x + 2 = 0$

The solution is given by the quadratic formula:

$x = \frac{ - b \pm \sqrt{ {b}^{2} - 4ac} }{2a}$

We substitute a=-0.02, b=2.2, and c=2 to get:

$x = \frac{ - 2.2 \pm \sqrt{ {2.2}^{2} - 4 \times - 0.02 \times 2} }{2 \times - 0.02}$

This implies that:

$x = 110.90 \: or \: x = - 0.90$

Since we are dealing with time,

$x = 110.90$

To one decimal place, we have 110.9 feet

6 0

3 years ago