Hi, Can you help me with the area and perimeter?

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Answer:

  4.09 seconds

Step-by-step explanation:

The ball is in the air until h(t) = 0. Solving that equation for t, we have ...

  0 = -16t^2 +64t +6

  t^2 -4t = 3/8 . . . . . . rearrange, divide by 16

  t^2 -4t +4 = 4 3/8 . . . add 4 to complete the square

  (t -2)^2 = 4.375 . . . . write as a square

  t = 2 +√4.375 . . . . . positive square root, add 2

  t ≈ 4.09165

The ball was in the air about 4.09 seconds.

Answer:

12,670,000,000-I think if its moving right one

Step-by-step explanation:

Answer:

All of the following except a trapezoid

Step-by-step explanation:

I checked it

A square, rectangle, parallelogram, rhombus and kite have at least one pair of congruent sides.

A quadrilateral is a polygon that has four sides and four angles. A square, rhombus is a quadrilateral in which all sides are congruent.  A rectangle, parallelogram is a quadrilateral with opposite congruent sides.

A kite is a quadrilateral that has adjacent congruent sides.

A square, rectangle, parallelogram, rhombus and kite have at least one pair of congruent sides.

Find out more on Quadrilateral at: https://brainly.com/question/23935806

Answer:

60.9

Step-by-step explanation:

Answer:

33/28

Step-by-step explanation:

(3/4) + (3/7) = 33/28

~1,18

Answer: $75

Step-by-step explanation:

Answer:

358.2

Step-by-step explanation:

thats the answer because .21=.2

Answer:

I think it's 70%.

Answer:

Step-by-step explanation:

Step one:

given data

the initial amount of chemical = 1.25 ounces

Extra amount of chemical =2.5 ounces

Total amount of chemical =1.25+2.5=3.75 ounces

Step two:

we are told that the scientist used 0.75 ounces of chemical

Hence the remaining chemical is

remaining= 3.75-0.75

remaining= 3 ounces

The remainder is 3 ounces

Answer:

Wellll

Step-by-step explanation:

Answer:

2(x-3x) + 3

value of X and M is x and -3x respectively

Step-by-step explanation:

you can factor out the 2 from the 2x -6x and gets the 2(x-3x) while n is the constant that remains the value of 3

I hope this helps

Answer:

m = - 3, n = - 6

Step-by-step explanation:

Expand and compare coefficients of like terms, that is

(x + m)² + n

= x² + 2mx + m² + n

Compare to x² - 6x + 3

comparing coefficients of x- term

2m = - 6 ( divide both sides by 2 )

m = - 3

Comparing constant terms

m² + n = 3 , that is

(- 3)² + n = 3

9 + n = 3 ( subtract 9 from both sides )

n = - 6

Answer:

$250

Step-by-step explanation:

Answer:

No, there is no enough flour for each of his friends to get a cupcake

Step-by-step explanation:

Let us use the ratio method to solve the question

∵ This recipe makes 2[tex]\frac{1}{2}[/tex] dozen cupcakes

∵ Each dozen contain 12 cupcakes

∴ The number of cupcakes can the recipe make = 2[tex]\frac{1}{2}[/tex]  × 12

∴ The number of cupcakes can the recipe make = 30 cupcakes

∵ The recipe calls for 3[tex]\frac{1}{3}[/tex] cups of flour

→ That means 3[tex]\frac{1}{3}[/tex] cups of flour can make 30 cupcakes

∴ 3[tex]\frac{1}{3}[/tex] cups of flour makes 30 cupcakes

∵ Anthony’s mother has only 1 cup of flour

→ By using the ratio method

→  flour  :  cupcake

→  3[tex]\frac{1}{3}[/tex]      :  30

→   1       :   x

→ By using cross multiplication

∵ 3[tex]\frac{1}{3}[/tex] × x = 1 × 30

∴ 3[tex]\frac{1}{3}[/tex] x = 30

→ Divide both sides by 3[tex]\frac{1}{3}[/tex]

∴ x = 9

∵ x represents the number of cupcakes  

∴ Anthony’s mother can make 9 cupcakes with 1 cup of flour

∵ Anthony has 12 friends at his daycare

∵ The number of the cupcakes = 9

∴ The number of cupcakes is not enough for each of his friends to

   get a cupcake

Answer:

81

Step-by-step explanation:

i did le math, and its right on ed2020

Answer:

Please help me

Step-by-step explanation:

Answer:

Its D

Step-by-step explanation:

Answer: its 7.5

Step-by-step explanation:you have a blessed thanksgiveing!

Answer:

7.5

Step-by-step explanation:

thank you!!!!

Answer:

3 mph

Step-by-step explanation:

To make 1/9 hour to 1 hour, you need to x9.

You can use this way:

Let the speed be x

(1/3)/(1/9)=x/1

1/9x=1/3

x=3

3mph

Hope is this useful :D

Answer:

So her height would be 84

Step-by-step explanation:

Answer:

the slope is 3/2

Step-by-step explanation:

(x1,y1)= (2,7)

(x2,y2)= (4,10)

slope=

[tex] \frac{y2 - y1}{x2 - x1} = \frac{10 - 7}{4 - 2} = \frac{3}{2} [/tex]

Explanation:

2008 - 2002 = 6 years have passed

In that time frame, we lost 26 cubic miles of ground water.

This means we lost about 26/6 = 4.333 cubic miles of ground water per year.

Answer:

A

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Answer:

Since, we are asked to present an exact solution, we are not able to give approximations.

The term exact means that you need to give the answer like this:

If we were asked to give an approximate result it would be like this x = 5,738.

f=4x%5E%7B3%7D%20%3D%20756%5C%5Cx%5E%7B3%7D%20%3D%20%5Cfrac%7B756%7D%7B4%7D%20%5C%5Cx%5E%7B3%7D%20%3D%20189%5C%5Cx%20%3D%20%5Csqrt%5B3%5D%7B189%7DHence, our answer is

Step-by-step explanation:

Answer:

Step-by-step explanation:

1. Make a proportion.

Set the numbers equal to each other.

I chose the numbers 9, 12, 15, and of course x.

Make the fractions in a way that the x is in the numerator if you want to make your life easier.

15/9 = x/12

2. Simplify

Cross multiply the numbers.

This will give you the equation of

9*x and 15*12

3. Make an equation

Simplify the numbers by mulitplying them

9x = 180

4. Divide both sides by 9

9x = 180

/9      /9

Hope this helped,

Kavitha Banarjee

Answer:

-11

Step-by-step explanation:

-20-(-9)= -11

Answer:

g=(q+x)/(h)

Step-by-step explanation:

you would 1st add x to the q

g/h=q+x

then you would divide the h from both sides

g=(q+x)/(h)