The equation h(t)=-16t^2+25t+80 gives the height of a ball in feet T seconds after it is thrown from a platform. What is the initial velocity when the ball is thrown?

Answer: the answer is D

Step-by-step explanation:

20+25= 45 minutes already used up. there are 120 minutes in 2 hours that she has.

120-45= 75

75/120= .625

.625x100 to get you your percentage = 62.5%

Answer:

The answer is B

Answer:

6,24

Step-by-step explanation:

6,24^2-16= 22,9376 -> 23

The correct answer is C. -3/2

Answer: 120 units3

Explanation: When finding the base of a prism, you must always multiply the side with the right angle. So basically, 5 is ignored because it does not have a right angle.

1st step: 3*4=12

2nd step: 12/2=6 (because the tringle which is the base is half a square)

3rd step: 6*20=120

The ending is unit 3 because it is volume. Area is unit 2 and we don't know if the prism is in cm so it is not A, or B, and D is the incorrect answer.

In conclusion:

120 units 3

Hope this helped!

Alin

Answer: x² + y² + 16y - 242 = 0

Step-by-step explanation: The equation of circle is given in the form (x -a)² + (y - b)² = r², where (a,b) is the center of the circle and r is the radius. But r is the distance from (0,-8) to (9,7)

the equation is (x-0)² + (y + 8)² = r²

                           x² + (y + 8)² = r²

hence r² = (x₁ - x₂)² + (y₁ - y₂)²

          r² = (0 - 9)² + (-8 - 7)² = 81 + 225 = 306

hence the equation is

                x² + y²+16y+64 = 306

                x² + y² + 16y - 242 = 0                        

The answer is a. If the graphs of the equations were parallel lines then they would have no solutions.

Hope this helps!

If this helps you please make it brainliest.

The statement is NOT true will the graphs of the equations are parallel lines because the system has no solution. Then the correct option is A.

A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.

This system of equations d = 5t + 2 and 2d = 4 + 10t has infinitely many solutions.

The statement is NOT true will the graphs of the equations are parallel lines because the system has no solution. Then the correct option is A.

More about the linear equation link is given below.

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The answer is 2 1/4 feet.

Multiply:

1 1/2 x 1 1/2

3/2 x 3/2

9/4

2 1/4

Hope this helps!

Answer:

The number of paper clips that Crystal has is 3 and the number of paper clips that Gayle has is 14

Step-by-step explanation:

Let

x----> the number of paper clips that Crystal has

y --->   the number of paper clips that Gayle has

we know that

[tex]y=x+11[/tex] ----> equation A

[tex]x=42/y[/tex] ----> equation B

substitute equation A in equation B

[tex]x=\frac{42}{x+11} \\ \\x^{2} +11x=42\\ \\x^{2} +11x-42=0[/tex]

Solve the quadratic equation by graphing

The solution is [tex]x=3\ paper\ clips[/tex]

see the attached figure

Find the value of y

[tex]y=3+11=14\ paper\ clips[/tex]

therefore

The number of paper clips that Crystal has is 3

The number of paper clips that Gayle has is 14

Answer:

B

Step-by-step explanation:

To rationalise the denominator.

Multiply the numerator/denominator by the radical on the denominator.

The radical on the denominator is [tex]\sqrt{11}[/tex], thus

Multiply the fraction by

[tex]\frac{\sqrt{11} }{\sqrt{11} }[/tex] → B

The expression (√11 /√11 ) needs to be multiplied to rationalize the denominator.

Those numbers which can be written in the form p/q such that q > 0 ae called Rational Numbers.

The expression given is

( 2 √10) /( 3 √11 )

To rationalize the denominator , the radical √11 needs to be rationalize

( 2 √10) /( 3 √11 ) * (√11 /√11 )

(2√110) / 33

Therefore (√11 /√11 ) needs to be multiplied to rationalize the denominator.

Option B is the answer.

To know more about Rational Number.

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Answer:

In 9 years, the account will be worth $1699.48

Step-by-step explanation:

Compound interest is interest calculated on the initial principal and also on the accumulated interest of previous periods of a deposit or loan. Ian invested $1.315 in savings account which earns 2.86% interest compunded quaterly.

The ammount of money the account will be worth is given by the formula:

[tex]A = P(1 + \frac{[\frac{r}{4}}{100} )^4n[/tex]

where r: Rate of annual interest = 2.86%

n: the number of years = 9

P= Principal ammount = $1315

Then A= $1699.48

Answer:

40

Step-by-step explanation:

Let n represent the integer. Then the increase can be written as ...

n + (-12) = 28

We can add 12 to both sides of this equation:

n + (-12) + (+12) = 28 +12

n + 0 = 40 . . . . . . -12 and 12 total to zero; 28 and 12 total to 40.

n = 40

The integer is 40.

Answer:

[tex]k=\frac{153}{124}[/tex]

Step-by-step explanation:

According to the Remainder Theorem; when P(y) is divided by y-a, the remainder is p(a).

The first polynomial is :

[tex]p(y)=ky^3+3y^2-3[/tex]

When p(y) is divided by y-5, the remainder is

[tex]p(5)=k(5)^3+3(5)^2-3[/tex]

[tex]p(5)=125k+75-3[/tex]

[tex]p(5)=125k+72[/tex]

When the second polynomial:

[tex]m(y)= 2y^3-5y+k[/tex] is divided by y-5.

The remainder is;

[tex]m(5)= 2(5)^3-5(5)+k[/tex]

[tex]m(5)= 225+k[/tex]

The two remainders are equal;

[tex]\implies 125k+72=225+k[/tex]

[tex]\implies 125k-k=225-72[/tex]

[tex]\implies 124k=153[/tex]

[tex]k=\frac{153}{124}[/tex]

Answer:

132

Step-by-step explanation:

858/13=66

66*2=132

Point C is the answer

Answer:

Point C

Step-by-step explanation:

Answer:

number of students with blue eyes and blond hair= 42

Number of students with grey eyes and brown hair= 5

Difference of number of kids with grey eyes and brown hair and the number of students with green eyes and black hair =6

Difference of the number of students with green eyes and blond hair and the number of students with grey eyes= 14

Answer:

an = -773 + 48n

Step-by-step explanation:

an = a + (n -1)d

a15 = a + (15 - 1)d = -53

         a + 14d = -53 .........1

a16 = a + (16 - 1)d = -5

         a + 15d = -5 ............2

subtract equation 2 from 1

a - a + 14d - 15d = -53 + 5

-d = -48

d =48

substitute d =48 in equation 1

a + 14(48) = -53

a +672 = -53

a = -53 -672

a = -725

an = -725 + (n -1)48

an = -725 + 48n - 48

an = -773 +48n

Answer:

h = 15 feet

Step-by-step explanation:

A right triangle is formed by the slant height, the radius of the base and h, with the slant height being the hypotenuse.

Using Pythagoras' theorem in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

Since base diameter = 16 then radius = 8

h² + 8² = 17²

h² + 64 = 289 ( subtract 64 from both sides )

h² = 225 ( take the square root of both sides )

h = [tex]\sqrt{225}[/tex] = 15

The height of the given cone will be 15 feet.

In a right-angled triangle, the square of the hypotenuse side is equal to the sum of the squares of the other two sides, according to Pythagoras's Theorem. The theorem can be used to determine how steep mountains or slopes are. To calculate the distance between an observer and a location on the ground when the observer is looking down from a tower or structure. It is mostly utilized in the construction industry.

Given, A right cone has a slant height of 17 feet, and the diameter of the base is 16 feet.

Since slant height and radius of the base makes a right-angle triangle with the base of radius and hypotenuse of the slant.

Thus, from the Pythagorean theorem:

hypotenuse² = height² + base²

In our case,

Hypotenuse = slant height = 17 feet

Base = radius of base of the cone = 16/2 = 8

Thus,

17² = height² + 8²

height² = 17² - 8²

height² = 225

height = 15 feet

Therefore, the height of the given cone will be 15 feet.

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Answer:

A.) 12 3/4 cups

B.) 117 1/3

Step-by-step explanation:

Part A

If one serving of ice tea contains 3/4 cup of water, how much does 7 serving have?

To answer this, you must multiply 3/4 and 17

17 is the same as 17/1, so multiply the numerators and denominators

17 x 3 = 51

1 x 4 = 4

51/4 = 12 3/4

So, Leon used 51/4 or 12 3/4 cups of water

Part B

If the cooler has 88 servings of tea, how many cups of water does it have?

To solve this, divide 88 by 3/4

Dividing 88 by 3/4 is the same as multiplying 88 by 4/3.

Again, 88 is the same as 88/1 so multiply the numerators and the denominators.

88 x 4 = 352

1 x 3 = 3

352/3 = 117 1/3

So, there are 352/3 or 117 1/3 cups of water in the cooler

I hope this helps!

To make 17 servings of iced tea, Leon uses 12.75 cups of water. If the water cooler holds 88 servings of iced tea, it contains 66 cups of water.

The student is asking how to calculate the total amount of water needed for 17 servings of iced tea, with each serving using 3/4 cup of water. To find the total, we multiply the number of servings by the amount of water per serving:

17 servings times  3/4 cup/serving = 12.75 cups

For part B, to find out how many cups are in 88 servings:

88 servings times  3/4 cup/serving = 66 cups

Answer:

Step-by-step explanation:

find the volume of each figure

Answer:

3,-5

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

it is 64 units so 8 units long each

Answer:

B) (21, -14) and (21, -22)

Step-by-step explanation:

Given,

The area of the square = 64 square unit,

Let x be the side of the square,

[tex]\implies x^2 = 64[/tex]

[tex]\implies x = 8[/tex]

Hence, the side of the square = 8 unit,

⇒ The distance between the adjacent vertices in the square = 8 units,

By the distance formula,

The distance between (3, -35) and (3, -28) is,

[tex]\sqrt{(3-3)^2+(-28-(-35))^2[/tex]

[tex]=\sqrt{0+(-28+35)^2}[/tex]

[tex]=\sqrt{7^2}[/tex]

[tex]=7\neq 8[/tex]

Thus, (3, -35) and (3, -28) can not be the vertices of the square.

The distance between (21, -14) and (21, -22) is,

[tex]\sqrt{(21-21)^2+(-22-(-14))^2[/tex]

[tex]=\sqrt{0+(-22+14)^2}[/tex]

[tex]=\sqrt{8^2}[/tex]

[tex]=8[/tex]

Thus, (21, -14) and (21, -22) are the vertices of the square.

The distance between (32, -42) and (32, -7)  is,

[tex]\sqrt{(32-32)^2+(-7-(-42))^2[/tex]

[tex]=\sqrt{0+(-7+42)^2}[/tex]

[tex]=\sqrt{35^2}[/tex]

[tex]=35\neq 8[/tex]

Thus, (32, -42) and (32, -7)  can not be the vertices of the square.

The distance between  (74, 19) and (82, 27) is,

[tex]\sqrt{(82-74)^2+(27-19)^2[/tex]

[tex]=\sqrt{8^2+8^2}[/tex]

[tex]=\sqrt{64+64}[/tex]

[tex]=\sqrt{128}[/tex]

[tex]=8\sqrt{2}\neq 8[/tex]

Thus, (74, 19) and (82, 27) can not be the vertices of the square.

Answer:

9

Step-by-step explanation:

shorter leg = x

longer leg = x + 3

Hypotenuse = x + 6

x² + (x + 3)² = (x + 6)²

x² + x² + 6x + 9 = x² + 12x + 36

2x² + 6x + 9 = x² + 12x + 36

x²  - 6x  - 27 = 0

(x - 9) ( x + 3) = 0

x = 9 or x = -3 (rejected)

The length of the shorter leg of the right angles triangle is 9.

What is a right-angle triangle?

A triangle is said to be right-angled if one of its inner angles is 90 degrees, or if any one of its angles is a right angle. The right triangle or 90-degree triangle is another name for this triangle.

A triangle is said to be right-angled if one of its angles is exactly 90 degrees. The total of the other two angles is 90 degrees. Perpendicular and the triangle's base are the sides that make up the right angle. The longest of the three sides, the third side is known as the hypotenuse

The right triangle's three sides are interconnected. The Pythagorean Theorem explains this connection. This theorem states that in a right triangle,  [tex]h^{2} = x^{2} + y^{2}[/tex];

where, h = hypotenuse; x = perpendicular side; y = base side;

Given that:

shorter leg = x

longer leg = x + 3

Hypotenuse = x + 6

⇒x² + (x + 3)² = (x + 6)²

⇒x² + x² + 6x + 9 = x² + 12x + 36

⇒2x² + 6x + 9 = x² + 12x + 36

⇒x²  - 6x  - 27 = 0

⇒(x - 9) ( x + 3) = 0

⇒x = 9 or x = -3.

x=-3 is not possible;

Hence, The length of the shorter leg = 9.

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If you are looking for a line measurement then I suggest using the distance formula.  Which is [tex]\sqrt({x2-x1)^{2} +(y2-y1)^{2}  }[/tex]

Answer:

The answer would be A.

Step-by-step explanation:

This is because when you divde 120 by 10, you will be given an answer of 12. This shows that 10% of 120 is 12.

Answer:

A. What is 10% of 120?

Step-by-step explanation:

did it on edge and the other person is correct :] Hope this helps

Answer:

408 in²

Step-by-step explanation:

Given in the question that,

length of a show box = 15 in

width of a show box = 7 in

height of a show box = 4.5 in

Formula to calculate the surface area of shoe box is as following

Plug values in the formula

2*(15*7 + 15*4.5 + 7*4.5)

2(105 + 67.5 + 31.5)

408 in²

The surface area of the box = 408 in²

Answer: 80 feet

Step-by-step explanation:

10 yard= 30 feet

2[l + b]

2{30+10}

Answer:

(5,151) and (16,316) are days with equal attendance for both plays.

Step-by-step explanation:

https://brainly.com/question/8102047

The correct answer is 5,101

Answer:

The cost of each kilometer driven is $0.6

Step-by-step explanation:

Let

x ------> the total distance driven on the trip (in kilometers)

y -----> the price of the rental (in dollars)

we have

(110,186) and (170,222) ----> see the table

step 1

Find the slope of the linear function

m=(222-186)/(170-110)

m=36/60

m=0.6 $/km

The slope of the linear equation is equal to the unit rate

so

The cost of each kilometer driven is $0.6

Answer:$120

Step-by-step explanation:

Answer: The Electronic Funds Transfer Act is a federal law that protects consumers engaged in the transfer of funds through electronic methods. This includes the use of debit cards, automated teller machines and automatic withdrawals from a bank account.

Step-by-step explanation:

Answer: It limits liability if their debit card is stolen and used