The table shows the height of a ball that was dropped from a 380-foot tower. What was the ball's rate of fall during the first 3 seconds?

0s-380ft

1-s-350ft

2s-290ft

3s-200ft

Answers

Answer 1

Answer:

60ft/s

Step-by-step explanation:

To find the rate

rate = f(3) - f(0)

         -------------

         3-0

rate = 200-380

         ---------------

         3-0

rate = -180/3   = -60 ft/s

The negative tells us it is falling

The fall falls 60ft/s

Answer 2

Answer:

The correct answer is 60 feet / second.

Step-by-step explanation:

We are given the height of a ball which is falling from a height of 280 feet for 3 seconds.

We are to find the ball's rate of fall during the first 3 seconds.

For that, we will take the difference between the heights and divide it by the time.

Ball's rate = [tex] \frac { 3 8 0 - 2 0 0 } { 3 } [/tex] = 60 feet / second


Related Questions

(x ________ )(x ________) = x^2−4x−32

what numbers/variables can fill in the blanks?
SOMEBODY PLZZZ HELPPPPPPP!!!!!

Answers

♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫

You have to find two values that will multiply to give -32 and add to give -4

Through trial and error, you will find that the two values are -8 and +4

Place these in:

(x + 4)(x - 8)

Hope This Helps You!

Good Luck (:

Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ

what two prime numbers total 31​

Answers

Answer:

2, 29

Step-by-step explanation:

The prime numbers are 2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89, and 97.

Complete the table by squaring each positive x-value listed 2, 3,4,5,6,7,8,9,10,11

Answers

2²=4 2×2

3²=9 3×3

4²=16 4×4

5²=25 5×5

6²=36 6×6

7²=49 7×7

8²=64 8×8

9²=81 9×9

10²=100 10×10

11²=121 11×11

Answer:

2²=4 2×2

3²=9 3×3

4²=16 4×4

5²=25 5×5

6²=36 6×6

7²=49 7×7

8²=64 8×8

9²=81 9×9

10²=100 10×10

11²=121 11×11

I need to know what this means ​

Answers

Answer:   (5n - 8)(n² - 3)

Step-by-step explanation:

You can factor this using the Grouping Method (hint: rearrange the terms)

   5n³ - 8n² - 15n + 24

=  5n³ - 15n   -8n² +24

=  5n(n² - 3)   -8(n² - 3)

= (5n - 8)(n² - 3)

The value of y varies directly with x.when y =150,x=1/3.what is the value of y when x is 16/6.

Answers

maybe 1200 because you multiply by 8 or 16/2

Water has a density of about 0.0361 pounds/cubic inch. You might know that wood floats on water. What can you conclude about the densities of objects that float and the densities of objects that do not?

Answers

Answer:

Step-by-step explanation:

Objects that float on water have densities less than the density of water; those that do not float on water have densisties greater than the density of water:

Float on water:  d < 0.0361 lb/in³ (where d denotes denisity)

Do not float on water:  d > 0.0361 lb/in³

The densities of objects that float on water are lower than those of objects that don't float.

What is density?

It is defined as the mass-to-volume ratio. The density indicates the object's density and is represented by the symbol. The density is measured in kilograms per cubic meter.

We have:

Water has a density of about 0.0361 pounds/cubic inch.

Let d be the density:

Float on water:  d < 0.0361 lb/in³

Do not float on water:  d > 0.0361 lb/in³

The densities of objects that float on water are lower than those of objects that don't, which have densities higher than those of water.

Thus, the densities of objects that float on water are lower than those of objects that don't float.

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Two points are 10 units apart on the coordinate plane. If
an ant were to walk between the 2 points moving only
vertically and horizontally, it would have to walk 6 horizontal
units. How many vertical units would the ant have to walk?

Answers

Answer:

The vertical distance the ant have to walk is 8 units

Step-by-step explanation:

∵ The ant must be walk vertically and horizontally

∴ The distance from start point to end point will be as

   a hypotenuse of a right angle triangle

∵ The ant would have to walk 6 units horizontally that

   means one side of the right angle is 6 units

∵ The two points are apart by 10 units that means

   the length of the hypotenuse is 10 units

∴ The vertical distance the ant would have to walk is

   the length of the second side of the right angle

* By using Pythagoras Theorem:

∵ (hypotenuse)² = (horizontal leg)² + (vertical leg)²

∴ 10² = 6² + (vertical leg)²

∵ (vertical leg)² = 100 - 36 = 64

∴ Vertical leg  = √64 = 8 units

∴ The vertical distance the ant have to walk is 8 units

Kyra was building a bed for her dollhouse. She used her bed, which is 4 feet × 5 feet, as a guide. She scaled down the dimensions of her bed by a factor 1 over 5. What are the dimensions of the model bed she built?

0.08 foot × 0.10 foot
0.40 foot × 0.50 foot
0.80 foot × 1.00 foot
0.04 foot × 0.05 foot

Answers

Answer: third option

Step-by-step explanation:

You have the following information given in the problem:

- The dimensions of Kyra's bed is:

[tex]4feet*5feet[/tex]

- The scale factor she used was: [tex]\frac{1}{5}[/tex]

Therefore, keeping the above on mind, you can find the the dimensions of the model bed she built by multipliying the dimensions of her bed by the scale factor:

[tex]\frac{1}{5}*4ft=0.80ft\\\\\frac{1}{5}*5ft=1.00ft[/tex]

Then, the answer is:

[tex]0.80ft*1.00ft[/tex]

Your dog eats 7/8 lb of food in 4 meals , how many meals will it take your dog to eat 1 lb of food

Answers

Answer:

x = 32/7, or 4 4/7 meals

Step-by-step explanation:

Write and solve an equation of ratios, as follows:

 7/8 lb           4 meals

------------        -------------

    1 lb                   x

x will be the number of meals necessary for the dog to eat 1 lb of food.

Cross-multiplying, (7/8)x = 4.

Multiplying both sides by 8/7 is an easy way to isolate x:

(8/7)(7/8)x = (8/7)(4)

or

              x = 32/7, or 4 4/7 meals

I need a step by step explanation how to solve for the solutions of this (Not by graphing)
y=({x}^2)-8x+15 and y=3x+15 (Once again plz solve using a method other than graphing and add an explanation)

Answers

Answer:

(0, 15) and (11, 48)

Step-by-step explanation:

Given the 2 equations

y = x² - 8x + 15 → (1)

y = 3x + 15 → (2)

Substitute y = x² - 8x + 15 into (2)

x² - 8x + 15 = 3x + 15 ( subtract 3x + 15 from both sides )

x² - 11x = 0 ← in standard form

x(x - 11) = 0 ← in factored form

Equate each factor to zero and solve for x

x = 0

x - 11 = 0 ⇒ x = 11

Substitute these values into (2) for corresponding values of y

x = 0 : y = 0 + 15 = 15 ⇒ (0, 15)

x = 11 : y = 33 + 15 = 48 ⇒ (11, 48)

Solutions are (0, 15), (11, 48)

Please help I need help with this ASAP please

please i really need help

Answers

Answer:

D

Step-by-step explanation:

Two events are independent if the intersection of the two events is the same as multiplying each events probability.

P (Texas) = 125/ 275 = 0.45

P (Brand A) = 176/275 = 0.64

0.45 * 0.64 = 0.29

P (Texas ∩ Brand A) = 0.29

So to find P (Texas | Brand A) = 0.29 / 0.64 = 0.45

Answer choice D makes the best choice.

if you subtract 8 from 7 times a certain number, you end up with 34. what is the number?​

Answers

If we call the unknown number x, we have:

7 times a certain number is [tex]7x[/tex]If we subtract 8, we have [tex]7x-8[/tex]

If this equals 34, we have

[tex]7x-8=34[/tex]

Add 8 to both sides:

[tex]7x=42[/tex]

Divide both sides by 7:

[tex]x=6[/tex]

What is the ratio of x to y=?
2/3=(x)/(3x+y)

Answers

Answer:

x : y = 2 : - 3

Step-by-step explanation:

given

[tex]\frac{2}{3}[/tex]  = [tex]\frac{x}{3x+y}[/tex] ( cross- multiply )

3x = 2(3x + y) ← distribute

3x = 6x + 2y ( subtract 6x from both sides )

- 3x = 2y ( divide both sides by y )

- 3[tex]\frac{x}{y}[/tex] = 2 ( divide both sides by - 3 )

[tex]\frac{x}{y}[/tex] = [tex]\frac{2}{-3}[/tex]

how i solve that please

Answers

Answer:

i cant see the picture

Step-by-step explanation:

524.95 to the nearest ten

Answers

525

Because the nearest tenth is the number after the decimal point but then nine rounds up. If you don’t want the nine rounded up leave it as 524.9

In given number 524.95, place value of 9 is tenth. So, the nearest ten is 525.0

What is place value?

The place value is the position of each digit in a number.

The nearest tenth is the number after the decimal point but then nine rounds up. If you don’t want the nine rounded up leave it as 524.9

524.9 = 525.0

Therefore, the answer is 525.0

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In a sample of 32 city residence, 24 reported that they take vitamin C supplement daily. There are 46,480 residence in the city. Which estimate represents the number of city residents who take vitamin C supplement daily?

Answers

Answer:

34,860

Step-by-step explanation:

In a sample of 32 residence, 24 take Vitamin C. From here we can get the proportion of residents who take Vitamin C, which is 24/32 = 3/4 = 0.75

0.75 in  percentage is 75%. This means 75% of the residents in sample take Vitamin C.

We can expect the same percentage of people in entire population to take Vitamin C.

Total population of city = 46480

Expected number of residents who take vitamin C in the city = 75% of 46480

= 0.75 x 46480

= 34860

This means, 34860 is an estimate of number of city residents who take Vitamin C supplement daily.

Final answer:

Based on the sample study and assuming its representativeness of the general population, it is estimated that approximately 34,860 residents of the city take a vitamin C supplement daily.

Explanation:

In the sample study, the proportion of residents who take vitamin C supplements daily is calculated by dividing the number of individuals who reported taking the supplement (24) by the total number of individuals in the sample (32). This yields a proportion of 0.75, or 75%. Then, we can apply this proportion to the total population of the city to estimate the number of residents who take vitamin C daily. Therefore, the estimated number is 0.75 * 46,480 = 34,860.

In conclusion, assuming that the small sample is representative of the larger population, we would estimate that "approximately 34,860" city residents take a vitamin C supplement daily.

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farriah found out that 54 students in the 7th grade have older siblings. there are 81 students in the 7th grade. what is the ratio of students with older siblings in the 7th grade? ( answer choices A. 2:1 B. 2:3 C. 1:27 D. 7:27 )

Answers

Answer: 2:1

Step-by-step explanation:

Plz help accidentally checked it in

Answers

Answer:

100

Step-by-step explanation:

sqrt[y] = 10

Apply both side a ^2

then

y = 100

Best regards

Answer:   b. 100

Step-by-step explanation:

[tex]\sqrt y-7=3\\\\\sqrt y=10\qquad added\ 7\ to\ both\ sides\\\\(\sqrt y)^2=(10)^2\\\\y=100\\\\\\Check:\\\sqrt{100}-7=3\\\\10-7=3\ \checkmark[/tex]

4/3x -3 ≤ -11

Please show how you got your answer!!

Answers

Answer:

-11+3=-8

-8=4/3x

-8/(4/3)=x

x=6

What is the slope shown below?

Answers

Answer:

A

Step-by-step explanation:

To calculate the slope m use the slope formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (- 3, - 7) and (x₂, y₂ ) = (9, 1) ← 2 points on the line

m = [tex]\frac{1+7}{9+3}[/tex] = [tex]\frac{8}{12}[/tex] = [tex]\frac{2}{3}[/tex]


If CDEF ≅ MNPQ, then ∠N ≅ _____


∠E.


∠D.


∠F.


∠C.

Answers

Answer: ∠D.

Step-by-step explanation:

because they are in the same position (2nd letter placement)

If quadrilaterals CDEF ≅ MNPQ, then it follows that ∠N ≅ ∠D.

Hence ∠D is correct.

If CDEF and MNPQ are congruent,

Then it means they have the same shape and size.

In other words, all of their corresponding angles and sides are equal.

Therefore, if ∠C is congruent to ∠M,

∠D is congruent to ∠N,

∠E is congruent to ∠P, and

∠F is congruent to ∠Q.

This is because congruence is a relation of equality between two geometric figures.

So, if two triangles (or any other polygons) are congruent,

Then all of their corresponding angles and sides are equal.

Therefore, if CDEF ≅ MNPQ, then it follows that ∠N ≅ ∠D.

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Cw 10. _______thanks

Answers

Answer:

Refer to Step-by-step

Step-by-step explanation:

1. Circle P

Because the name of the circle is named by the central point of the circle.

2. Radius AP or PB

The radius is the measurement of the center of the circle to the circumference of the circle.

3. Chord DE

A chord is a line segment where both endpoints lie on the circle.

4. Diameter AB

The diameter is a line segment that goes straight across the center of a circle and the endpoints reach the circumference of the circle.

5. 12.73ft

[tex]d = \dfrac{C}{\pi }[/tex]

[tex]d = \dfrac{40}{\pi }[/tex]

[tex]d=12.73ft[/tex]

6. 4.97m

[tex]d = \dfrac{C}{\pi }[/tex]

[tex]d = \dfrac{15.62}{\pi }[/tex]

[tex]d = 4.97m

[/tex]

7. 132.7cm

[tex]a^{2}+b^{2} =c^{2}[/tex]

a = 5 cm

b = 12 cm

c = ?

[tex]5^{2}+12^{2} =c^{2}[/tex]

[tex]25+144=c^{2}[/tex]

[tex]c^{2}=169[/tex]

[tex]\sqrt{c^{2}}=\sqrt{169}[/tex]

[tex]c=13cm[/tex]

r = diameter/2

r = 13cm

r = 6.5cm

[tex]C=\pi r^{2}[/tex]

[tex]C=\pi 6.5^{2}[/tex]

[tex]C=132.7cm[/tex]

8. 128.7in

[tex]a^{2}+b^{2} =c^{2}[/tex]

a = 9in

b = 9in

c = ?

[tex]9^{2}+9^{2} =c^{2}[/tex]

[tex]81+81=c^{2}[/tex]

[tex]c^{2}=162[/tex]

[tex]\sqrt{c^{2}}=\sqrt{162}[/tex]

[tex]c=12.7in[/tex]

r = diameter/2

r = 12.7in/2

r = 6.4in

[tex]C=\pi r^{2}[/tex]

[tex]C=\pi 6.4^{2}[/tex]

[tex]C=128.7in[/tex]

Before we proceed, let's solve for the missing arcs UT, PQ, and RQ

Arc UT = 180° - (40° + 40° + 50°)

Arc UT = 50°

Now since Arc PQ is half of the diameter, then:

Arc PQ = 90°

The same applies for Arc QR

Arc QR = 90°

9. 275°

Arc UPQ = 40°+50°+180°

Arc UPQ = 275°

10. 90°

Arc UTS = 50°+40°

Arc UTS= 90°

11. 140°

Arc RSU = 50°+40°+50°

Arc RSU = 140°

12. 270°

Arc PQS = 40°+50°+180°

Arc PQS = 270°

13. 180°

Arc PQR = 90° + 90°

Arc PQR = 180°

14. 50°

15. 130°

Arc STP = 40°+50°+40°

Arc STP = 130°

16. 320°

Arc PRU = 180° + 50° + 40° + 50°

Arc PRU = 320°

Jose is planning to spread fertilizer on his rectangular yard. His yard has the lenth of 40 ft and width of 25 ft. How much fertilizer does he need

Answers

Answer:

1000 square feet

Step-by-step explanation:

We are given that Jose is planning to spread fertilizer on his rectangular yard which has a length of 40 ft and width of 25 ft.

We need to find out the amount of fertilizer he needs.

We know that the formula of area of rectangle is given by: [tex]l \times w[/tex]

So substituting in the given values to get:

[tex]40 \times 25 = 1000[/tex] square feet

Answer:

1000 sqare feet

Step-by-step explanation:

LxW=A

40x25=1000

If ec bisects are congruent to bed find m bed ..??

Answers

Answer:

m<BED = 136 deg

Step-by-step explanation:

Since ray EC bisects <BED, angles BEC and CED are congruent. That means their measures are equal. Set the measures equal to each other, and solve for x.

11x + 2 = 8x + 20

Subtract 8x from both sides.

3x + 2 = 20

Subtract 2 from both sides.

3x = 18

Divide both sides by 3.

x = 6

Now we use the value of x to find the measure of angle BED.

The measure of angle BED is twice the measure of angle BEC. We know that x = 6.

m<BED = 2m<BEC = 2(11x + 2) = 2(11 * 6 + 2) = 2(66 + 2) = 2(68) = 136

Solve: 25x^2 - 36 = 0
A.) x = 6, 5
B.) x = -6, -5
C.) x = 36/25, x = -36/25
D.) x = 6/5, x = -6/5

Answers

Answer: 6/5 and -6/5

Step-by-step explanation: In order to solve this problem, we want to get the variable on one side. In order to do that, we must do the following:

Add 36 on Both Sides:

[tex]25x^2 - 36+36 = 0+36[/tex]

Divide 25 on Both Sides:

[tex]\frac{25x^2}{25}= \frac{36}{25}[/tex]

Take the square root of Both Sides:

[tex]\sqrt{x^2} = \sqrt{\frac{36}{25} }[/tex]

That means your answer is:

[tex]x = \frac {6}{5}[/tex], or [tex] -\frac {6}{5} [/tex]

7814/12 in a mixed number

Answers

Here is your answer 651 2/12

hope this helps.

Please mark me as brainliest.

Answer:

651  2/12

Step-by-step explanation:


[tex]xy + x + y = 11 \\ x {}^{2}y + xy {}^{2} = 30[/tex]
find x & y​

Answers

I think the answer is 2 and 3.

Answer:

x=1,2,3,5

y=5,3,2,1

Step-by-step explanation:

see the image

six angles of a heptagon measure 107, 139, 131, 110, 145. and 128. what is the measure of the seventh angle​

Answers

the measure is 140, I basically summed all of the angles of a polygon of “n”, which is 7, then I did 7-2 times 180 (900) so I can finally add up all of your measurements

The seventh angle of the given Heptagon is 140 degrees.

What is Heptagon?

A heptagon is a polygon that has seven sides. It is a closed figure having 7 vertices. A heptagon is also sometimes called Septagon.

Given, six angles of a heptagon measure 107, 139, 131, 110, 145. and 128.

Since, Sum of all angles of Heptagon is 900°

Let "x" be the seventh angle of Heptagon

thus,

107 + 139 + 131  + 110 + 145 + 128 + x = 900

760 + x = 900

x = 140

Therefore, The seventh angle of the given Heptagon is 140 degrees.

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Toms Toy car went 2 meters without stopping Roberts went 145 centimeters whose car went farther

Answers

Answer:

Tom's car went further

Step-by-step explanation:

Since there are 100 centimeters in 1 meter - Roberts car went nearly 1 and a half meters or Tom's car went 200 centimeters.

toms car went farther

Is it preferable to pay for these items with tax dollars or be charged ad each is used? What do you think?

Answers

Answer:

In my opinion I would say Tax Dollars

Hope This Helps!     Have A Nice Day!!      

Final answer:

Whether public goods should be paid for through taxes or individual fees depends on various factors, including the nature of the good and one's income level. For many public goods and services, a combination of tax funding and user fees is used. The decision between the two is a matter of public policy and individual preference.

Explanation:

The decision on whether to pay for public goods through taxes or individual fees depends on various factors. In essence, this relates to the discussion on public provision versus personal pay-per-use. Some public goods, like parks, are free to use, but the government charges for certain services, such as parking or reserving picnic areas. This is a mixture of public provision at no charge along with fees for some purposes.

On the other hand, taxes are paid by most working people and by consumers when they buy goods and services. These taxes fund public services like roads, bridges, schools, and public safety functions. Thus, some may prefer public goods to be funded through taxes so everyone contributes to these community-supporting services.

Nonetheless, there are also 'toll goods', like cable TV and private schools, that are open to everyone but require users to pay a fee. The choice between taxes versus individual fees can also depend on one's income level, as those with more discretionary income might prefer pay-per-use to avoid potential higher taxes.

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