All categories

2 years ago

WILL MARK BRAINLIEST!

Mathematics

2 answers:

hodyreva [135]2 years ago

4 0

Answer:

d(20+30)

20d + 30d

Step-by-step explanation: hope this helps

Marina CMI [18]2 years ago

4 0

Answer:

20d + 30d = 50d

Step-by-step explanation:

You might be interested in

A ball is thrown into the air. The path it takes is modeled by the equation: -3t+24t = h, where t is the time in seconds and h i

astra-53 [7]

Given:

The given equation is:

$-3t^2+24t=h$

Where, t is the time in seconds and h is the height of the ball above the ground, measured in feet.

To find:

The inequality to model when the height of the ball is at least 36 feet above the ground. Then find time taken by ball to reach at or above 36 feet.

Solution:

We have,

$-3t^2+24t=h$

The height of the ball is at least 36 feet above the ground. It means $h\geq 36$ .

$-3t^2+24t\geq 36$

$-3t^2+24t-36\geq 0$

$-3(t^2-8t+12)\geq 0$

Splitting the middle term, we get

$-3(t^2-6t-2t+12)\geq 0$

$-3(t(t-6)-2(t-6))\geq 0$

$-3(t-2)(t-6)\geq 0$

The critical points are:

$-3(t-2)(t-6)=0$

$t=2,6$

These two points divide the number line in 3 intervals $(-\infty,2),(2,6),(6,\infty)$ .

Intervals Check point $-3(t-2)(t-6)\geq 0$ Result

$(-\infty,2)$ 0 $(-)(-)(-)=(-)$ False

$(2,6)$ 4 $(-)(+)(-)=+>0$ True

$(6,\infty)$ 8 $(-)(+)(+)=(-)$ False

The inequality is true for (2,6) and the sign of inequality is $\geq$ . So, the ball is above 36 feet between 2 to 6 seconds.

$6-2=4$

Therefore, the required inequality is $-3t^2+24t\geq 36$ and the ball is 36 feet above for 4 seconds.

3 0

2 years ago

PLEASE HELP ME PLEASE HELP ASAP THANKS (brainlest)

zloy xaker [14]

Answer:

0.999 units

Step-by-step explanation:

$\frac{3.14}{\pi}$

D=0.9994930426

4 0

2 years ago

Read 2 more answers

ANSWER TRUTHFULLY WILL NAME YOU BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!

kodGreya [7K]

For each answer, we can plug in the given points:

A) is technically the same as B), but B) expresses correct function notation.

B) 5 = 5(1) ⇒ 5 = 5
25 = 5(2) ⇒ 25 ≠ 10
B) is incorrect.

C) I'm not sure what you mean y=5^5=x, but I'm going to use $y=5^{x}$ because it's close to what you wrote:
$5=5^{1} =\ \textgreater \ 5=5 \\ 25=5^{2} =\ \textgreater \ 25=25 \\ 125=5^{3} =\ \textgreater \ 125 = 125 \\ 625=5^{4}=\ \textgreater \ 625=625 \\ 3125=5^{5}=\ \textgreater \ 3125=3125$
The function $y=5^{x}$ works for the points given.

D) 5 = 1 + 5 ⇒ 5 ≠ 6
D) is not correct.

Please check your functions; I'm not sure that C) is a function. In any case, the answer is C) because all the other answers are wrong.

6 0

2 years ago

What is the quotient when 72 is divided by 8

DanielleElmas [232]

72 divided by 8 is 9 :)

6 0

2 years ago

Read 2 more answers

A coffee shop uses two different-sized bins to store coffee beans. The volume of the smaller bin is

DedPeter [7]

Answer:

hey i was wondering if I can be made a the answer is the L 0ne