Please help will give brainiest!!! 4. The pathway of a quarter being thrown off a bridge can be modeled by the equation h = -16t2 + 72t + 120. At what time does the quarter reach a height of 50 feet?​

Answer:

1. 2.3×10⁴

2. 2.5×10⁴

3. 0.000354

The perimeter of the semicircular region is the circumference of the semicircle plus the diameter

                 d: diameter length

                  r: radius length

6. [tex]Perimeter=\frac{1}{2}\pi d + d= \frac{1}{2} \pi *18+18=9\pi +18 = 46.26cm[/tex]

7. [tex]Perimeter =\frac{1}{2}\pi d+d= \frac{1}{2} \pi *20+20 = 31.4+20=51.4 in[/tex]

8. [tex]Perimeter=\pi r+2r = \pi *4 + 8=20.56mm[/tex]

Hope that helps!

Answer:

A.4

Step-by-step explanation:

The average length of a paperback book is 4.25 inches in height and 6.87 in length. So the options you have here are 4,8,14, and 18 inches the closest number to 6.87 in 4 inches. I hope my answer helps you a lot.  

Answer:

A and infinite solutions

Step-by-step explanation:

4/5x - 8 = 4(1/5x - 2)

4(1/5x - 2)

4/1 x 1/5x = 4/5x

4 x (-2) = -8

Put them together and you get:

4/5x - 8 AND

4/5x - 8 = 4/5x - 8

IF 2 SIDES OF AN EQUATION ARE THE SAME THEN THE ANSWERS ARE INFINITE

YOU CAN TURN THE EQUATION INTO JUST (x = x)

Answer

B and One Solution

Step-by-step explanation:

4/5x - 8 = -(4/5x + 2)

-(4/5x + 2) = -4/5x - 2

ADD 4/5x TO THE BOTH SIDES

8/5x - 8 = -2

ADD 8 TO BOTH SIDES

8/5x = 6

DIVIDE BOTH SIDES BY 8/5 OR 1.6

x = 3.75

You can get through the last one. Reply if you need me to

Answer:

x= −2 and y=2

Step-by-step explanation:

First graph it onto the coordinate plane. Wherever they intersect, those coordinates are the answer.

To graph the equation,

1) Plot the y-intercept

2) Depending on whether the slope is positive or negative, go up or down and left or right from the y-intercept.

Answer:  the answer is 3ft because one bit is 2ft + the cirly bit is 3ft

Answer: The answer is A. 25.5

Step-by-step explanation: I have a calculator for this and it said that was the answer

The answer is A.

hope this helps!

Answer:

[tex]Hi!~I~am~beinggreat78,~and~I~will~help~you![/tex]

Let's start by breaking down the problem.

This is how it should look. ↓

[tex]60[/tex] ÷ [tex]20[/tex] ⇒ [tex]+ 3[/tex] ⇒ [tex]x * 5^2[/tex]

What does that x mean? x is just a substituted value for the first 2 equations.

Now, we can solve.

[tex]60[/tex] ÷ [tex]20[/tex] [tex]= 3[/tex]

Add 3

[tex]3 + 3 = 6[/tex]

Now, multiply 6 times 5 squared. What does 5 squared mean? 5 squared is just 5 times itself once. You most likely want to solve 5 squared before multiplying.

[tex]5^2~or~5 * 5 = 25[/tex]

And now for the last step, multiply 25 times 6

[tex]25 * 6 = 150[/tex]

With that information, the problem is solved! Your answer is 150

Answer:

miles to travel directly south = 54 miles (to the nearest mile)

extra miles = 68 miles (nearest mile)

Step-by-step explanation:

We need to find the height of the right triangle in the diagram.

To do this, use the sine trig ratio.

[tex]\sin(x)=\sf\dfrac{O}{H}[/tex]

where:

Given:

[tex]x[/tex] = 27°

O = height (h)

H = 120 miles

Substituting the given values into the formula:

[tex]\implies \sin(27^{\circ})=\sf\dfrac{h}{120}[/tex]

[tex]\implies \sf h=120 \sin(27^{\circ})[/tex]

[tex]\implies \sf h=54.47885997...[/tex]

Therefore, the shipmate will have to travel 54 miles (to the nearest mile) directly south.

To find the number of extra miles have been traveled, we first need to find the base length of the right triangle.

To do this, use the cos trig ratio.

[tex]\cos(x)=\sf\dfrac{A}{H}[/tex]

where:

Given:

Substituting the given values into the formula:

[tex]\implies \cos(27^{\circ})=\sf\dfrac{b}{120}[/tex]

[tex]\implies \sf b=120 \cos(27^{\circ})[/tex]

[tex]\sf \implies b=106.9207829...[/tex]

Therefore, the base of the right triangle is 106.9207829... miles

To find the extra miles, sum the hypotenuse and the height of the triangle, then subtract the base.

Extra miles = (120 + 54.47885997... ) - 106.9207829...

                  = 67.55807707...

                  = 68 miles (nearest mile)

#1

Apply sines

#2

Total distance travelled =120+54.5=174.5ft

Base:-

Extra distance:-

Answer:

41

Step-by-step explanation:

41, 41, 41, 44, 90

other answers would have been:

41, 41, 44, 50, 90

41, 41, 44, 58, 90

41, 41, 44, 66, 90

Answer: y = x + 1

You can see that in the chart that each income has an outcome of +1

Answer:

The relationship is Sequence two is always one step ahead of sequence one.

Step-by-step explanation:

is this right??? by the way, have you smiled today? its very important:)

Answer:

220.5 sq feet

Step-by-step explanation:

Given : Bev has to cut her grandma's grass this weekend

Six-sided polygon that includes two isosceles right triangles, one with height and base of 15 feet, the other height and base of 4 feet, and one rectangle measuring 25 feet by 4 feet.

To Find : Area of Polygon

Solution:

Area of triangle = (1/2) bh

= (1/2) * 15 * 15

= 112.5   sq feet

= (1/2) * 4 * 4

=  8   sq feet

Area of rectangle = 25 x 4 = 100   sq feet

Total area =112.5 +  8  + 100

= 220.5 sq feet

Area of Polygon = 220.5 sq feet

Answer:

398 ft²

Step-by-step explanation:

Assuming you have correctly described the total area in terms of non-overlapping triangles and a rectangle, you can put the dimensions into the appropriate area formula and add up the pieces.

Triangle area = 1/2·bh

Rectangle area = bh

___

So, the first triangle has an area of ...

1/2·(20 ft)(20 ft) = 200 ft²

The second triangle has an area of ...

1/2·(6 ft)(6 ft) = 18 ft²

The rectangle has an area of ...

(30 ft)(6 ft) = 180 ft²

And the area total is ...

200 ft² +18 ft² +180 ft² = 398 ft²

Answer:

260,194.67

tthat is the answer

Answer:

a

Step-by-step explanation:

The answer does not change.

Answer:

the question for this answer should be c. How much money did Oliver give to Roy? because a statistical question  can be answer by collecting data that can vary a lot.

Step-by-step explanation: hope it helps and give me brainliest please if you want.

Answer: 10,500

Step-by-step explanation:

How to calculate tax and earning

Given the following paramiters

Total amount earned by the student = $15000

Assume we have the following parameters

Earning paid off in taxes = $1500

Amount spent on living expenses = $3000

Amount she will have left = 15000 - (1500 + 3000)

Amount she will have left = 15,000 - 4500

Amount she will have left = 10,500

Hence the amount she will have left is $10,500

Answer:

$7,500

Step-by-step explanation:

First, find the amount he pays in taxes:

$15,000 x 0.1 = $1,500

Next, find the amount he pays in living expenses:

$15,000 x 0.4 = $6,000

Add the two amounts together:

$1,500 + $6,000 = $7,500

Subtract the combined amount from the original amount to find how much the student saved:

$15,000 - $7,500 = $7,500

Therefore, the college student saves $7,500.

Answer:

-7.4

Step-by-step explanation:

It's only one less than -7.5

Answer:

C.

Step-by-step explanation:

When we add up all the numbers we get 111 then we divide it by 10 which gives us 11.1. since we have no value to round to the tenths place, the answer stays the same.

Answer:

28.26

Step-by-step explanation:

How i got this answer is it says that you have 9 and 3.14 correct? Well all you have to do is multiply both of them then you get 28.26. YO WELCOME MORTAL!!

Answer:

-29

Step-by-step explanation:

(-4 + -3) x 2^2 - 1

follow order of operations PEMDAS

Parentheses:

(-4 + -3) x 2^2 - 1

(-7) x 2^2 -1

exponents:

(-7) x 4 - 1

multiplication

-28 - 1

subtraction

-29

Answer:

[tex]beinggreat78~here~again![/tex]

I posted the answer and steps on one of your duplicate questions.

Just incase it was not seen, the answer is -29

Answer:

The cost of one box of paper clips is $1.85 and the cost of one package of index cards is $3.95

Step-by-step explanation:

Answer:

B and D

Step-by-step explanation:

.......

...

..

.....

Answer:

Part 1: 20
Part 2: 75%
Part 3: Skewed to the right

Step-by-step explanation:

Hope this helps. Please give Brainliest.

Answer:

The answer to this question would be c

Answer:

Given the equation y = -16t^2 + 96t + 3, we know a = -16, b = 96, c = 3.

Let's solve for h in this problem.  

h = -b/2a

h = -(96) / 2(-16)

h = -96 / -32

h = 3 seconds

Now let's add t=3 to our equation:

y = -16t^2 + 96t + 3

y = -16*(3)^2 + 96*(3)+ 3

y = -144 + 288 + 3

We now know that the vertex is (3,147), which means that the ball's maximum height is 147 feet.

Answer:

Step-by-step explanation:

Find the height at   h(0)   and   h(1)

h(0) = 3 ft

h(1) = -16 + 32 + 3 = 19 ft

It takes 1 second to go from 3 feet to 19 feet

  (19-3) ft / 1 sec = 16 ft/sec

Answer:

10

Step-by-step explanation:

Solve f(x)=2, if f(x)=1/2x-3

Both equations are set to equal f(x) so the solution would be the two equations set to equal each other

2 = 1/2x - 3

==> add 3 to both sides

5 = 1/2x

==> multiply both sides by 2

10 = x

Answer:

x = 10

given:

f(x) = 2

======

[tex]\sf \rightarrow \dfrac{1}{2} x- 3= 2[/tex]

change side

[tex]\sf \rightarrow \dfrac{1}{2} x= 2+3[/tex]

simplify the following

[tex]\sf \rightarrow \dfrac{1}{2} x= 5[/tex]

change side

[tex]\sf \rightarrow x= 5*2[/tex]

final outcome

[tex]\sf \rightarrow x= 10[/tex]