All categories

3 years ago

PLZ HELP ME BY TONIGHT AT 12:30 ITS DUEEE ps/ plz answer ALLL the questions

Mathematics

1 answer:

kap26 [50]3 years ago

7 0

Since it decreases by 36 each year, the change would be 36+36+36+36=36*4=144

For a, we can plug in values for t, so 2000-(200*1)=1800 for the first year,
2000-(200*2)=1600 - do you see the pattern here? It subtracts by 200 every year, so 1600-200=1400 for the third year and 1400-200=1200 for the fourth year.

You might be interested in

A ball has been thrown into the air its distance from the ground is given by the function s(t)=-16t^2+96t+100

slega [8]

Answer:

For t=3 sec the velocity change from positive to negative

Step-by-step explanation:

we have

$s(t)=-16t^2+96t+100$

This is the equation of a vertical parabola open downward (the leading coefficient is negative)

where

s(t) is the distance in feet

t is the time in seconds

We know that

To find out when the velocity change from positive to negative, we need to determine the turning point of the quadratic equation

The turning point of the quadratic equation is the vertex

Convert the quadratic equation into vertex form

$s(t)=-16t^2+96t+100$

Factor -16

$s(t)=-16(t^2-6t)+100$

Complete the square

$s(t)=-16(t^2-6t+9)+100+144$

$s(t)=-16(t^2-6t+9)+244$

Rewrite as perfect squares

$s(t)=-16(t-3)^2+244$

The vertex is the point (3,244)

therefore

For t=3 sec the velocity change from positive to negative

8 0

3 years ago

I need an answer asap thank you

AysviL [449]

Answer:

the second one is youre answer

Step-by-step explanation:

6 0

3 years ago

Please help

Firdavs [7]

Answer:

(–10, –2), (6, 6)

Step-by-step explanation:

we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

Verify each case

case 1) (5, –4), (–2, 1)

substitute in the formula

$m=\frac{1-(-4)}{-2-5}$

$m=\frac{1+4}{-2-5}$

$m=\frac{5}{-7}$

$m=-\frac{5}{7}$ ----> the slope is negative

case 2) (6, –10), (2, 10)

substitute in the formula

$m=\frac{10-(-10)}{2-6}$

$m=\frac{10+10}{2-6}$

$m=\frac{20}{-4}$

$m=-5$ ----> the slope is negative

case 3) (–10, –2), (6, 6)

substitute in the formula

$m=\frac{6-(-2)}{6-(-10)}$

$m=\frac{6+2}{6+10}$

$m=\frac{8}{16}$

$m=0.5$ ----> the slope is positive

case 4) (5, –1), (–6, 6)

substitute in the formula

$m=\frac{6-(-1)}{-6-5}$

$m=\frac{6+1}{-6-5}$

$m=\frac{7}{-11}$

$m=-\frac{7}{11}$ ----> the slope is negative

3 0

3 years ago

Jim works mowing lawns and babysitting. He earns $8.80 an hour for mowing and $8.10 an hour for babysitting. How much will he ea

kicyunya [14]

Answer: $8.80 for one hour of mowing and $40.50 for 5 hours of babysitting

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

△DEF is shown below. Triangle DEF What is m∠DEF?

S_A_V [24]

Answer:

m∠DEF = 50

Step-by-step explanation:

∠DEG = ∠GEF

3y + 4 = 5y - 10

subtract 4 from both sides

3y = 5y - 14

subtract 5y from both sides

-2y = -14

divide by -2

y = 7

Add 7 into the equations:

3y + 4 + 5y - 10

3(7) + 4 + 5(7) - 10

21 + 4 + 35 - 10

25 + 25

4 0

3 years ago