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2 years ago

1. 1.5 ÷ 1.2

Mathematics

1 answer:

kirill115 [55]2 years ago

6 0

Answer:

1. 25

2. 5.7

3. 10.7

4. 204

5. 100.5

Step-by-step explanation:

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How much was deposited in the account if the amount in the

Mrac [35]

Answer:

$98.33 was deposited in the account

Step-by-step explanation:

simple interest formula = (PRT)/100 ...where p is money, r is rate, t is time

using formula $17.70 = (P * 3% * 6)/100

P = 1770/18

P = $98.33

8 0

2 years ago

Martin throws a ball straight up in the air. the equation h(t) = -16t^2 + 40t + 5 gives the height of the ball, in feet, t secon

Lisa [10]

Answer:

2.62 seconds

Step-by-step explanation:

Let

t ----> the time in seconds

h(t) ----> he height of the ball, in feet

we have

$h(t)=-16t^2+40t+5$

we know that

When the ball hits the ground, the height is equal to zero

$-16t^2+40t+5=0$

The formula to solve a quadratic equation of the form

$at^{2} +bt+c=0$

is equal to

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

in this problem we have

$-16t^2+40t+5=0$

$a=-16\\b=40\\c=5$

substitute in the formula

$t=\frac{-40\pm\sqrt{40^{2}-4(-16)(5)}} {2(-16)}$

$t=\frac{-40\pm\sqrt{1,920}} {-32}$

$t=\frac{-40+\sqrt{1,920}} {-32}=-0.12\ sec$

$t=\frac{-40-\sqrt{1,920}} {-32}=2.62\ sec$

therefore

The solution is t=2.62 seconds

4 0

3 years ago

Let f(x)=81+3e−0.7x .

olchik [2.2K]

9.25
this is your answer

5 0

3 years ago

Read 2 more answers

Please help! <br> I really don’t understand this

qwelly [4]

Answer:

Step-by-step explanation:

Rotation doesn't alter the lengths.

6×2 = 12

4 0

3 years ago

Read 2 more answers

The data below shows the minimum wage requirement

andreyandreev [35.5K]

Answer:

We select the option c.

$y=0.114x+0.691$

Step-by-step explanation:

<u>Best Fit Regression Model</u>

Scientists often wonder if there is a relationship between the variables under study. It's a vital matter in modern times where artificial intelligence technology is struggling to find answers where traditional approaches hadn't before.

The most-used tool to find relations between variables is the regression model and its best fit lines to try to find an expression who relates variable x (years from 1960) and variable y (minimum wage requirement) as of our case.

The data was entered into a digital spreadsheet and an automatic function was applied to find the best-fit model.

The automated tool's output was this equation:

$y=0.11363x+0.6906$

That can be rounded to three decimals

$y=0.114x+0.691$

We select the option c.

5 0

3 years ago