ABCD is a quadrilateral.
AB = CD.
Angle DAB = angle CDA.
Prove that AC = BD.

Answer:

this is prolly the easiest 20 points you’ll get

Answer:

3rd option

Step-by-step explanation:

When the object hits the ground the height h(t) = 0 , then

- 16t² + 96t + 256 = 0 ( divide through by - 16 )

t² - 6t - 16 = 0 ← in standard form

(t - 8)(t + 2) = 0 ← in factored form

Equate each factor to zero and solve for t

t - 8 = 0 ⇒ t = 8

t + 2 = 0 ⇒ t = - 2

but t > o , then object takes 8 seconds to hit the ground

Answer:

y=3/4x-8

Step-by-step explanation:

Answer:

7.89 seconds

Step-by-step explanation:

using the quadratic formula (-b+-√(b^2-4ac))/2a

a=-16 b=119 c=57

x=-0.451

and

x=7.889

time cant be negative so use the positive x

Time required for the rocket to hit the ground would be 7.9 s.

A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is  ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.

We are given the quadratic equation as;

-16x² + 119x + 57 = 0

By using the quadratic formula,

x = [-b ± √b² - 4ac]/2a

Here, a = -16, b = 119 and c = 57

b² - 4ac = (119 )² - 4(-16)(57)

= 14161 + 3648

= 17809

So, x = [-(119) ± √17809]/ 16(2)

= (-119 ± 133.4)/32

Therefore, the time is 7.9 s.

Learn more about quadratic equations;

brainly.com/question/17177510

#SPJ2

Answer:

y + 7 = [tex]\frac{1}{2}[/tex] (x + 6)

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b ) a point on the line

Here m = [tex]\frac{1}{2}[/tex] and (a, b ) = (- 6, - 7 ) , then

y - (- 7) = [tex]\frac{1}{2}[/tex] (x - (- 6) ) , that is

y + 7 = [tex]\frac{1}{2}[/tex] (x + 6)

Answer:

In the class there can be 18/36/12/9/6/4 etc... Students

Answer:

they are 12 in the class 3 for each one of them in twelve places

Answer:

B. Every 16 minutes, 22 more pizzas were set out on the buffet.

Step-by-step explanation:

At 11:00 am, x would be equal to 0, and there would be 15 pizzas on the buffet line. Then, every 8 minutes, 11 more pizzas are added to the buffet line. So in 16 minutes, 22 pizzas will be added to the buffet.

[tex]\frac{16}{8} =2\\(11)(2) = 22[/tex]

Total pages read after 4h

[tex]\\ \sf\longmapsto 4(55)=220pages[/tex]

Pages left=350

Now

[tex]\\ \sf\longmapsto y=350+220[/tex]

[tex]\\ \sf\longmapsto y=570[/tex]

Answer:

12:3

Step-by-step explanation:

Answer:

Answer d

Step-by-step explanation:

Answer:

12 Loaves of bread :D

Step-by-step explanation:

hope that helped , have a great day !!

Answer:

24 I hope help you yieeeeeee

Answer:

ummmmmmmmmmm itsssssssss

Step-by-step explanation:

Solve numerator

Solve denominator

Final answer

Answer:

If it's a mixed fraction, it is 11/2 but if it's multiplication, it's 2.5. I don't really know what you mean.

Answer:

D

Reasoning:

Anything that is divided by zero is undefined.

Answer:

The answer 19\24 is not reasonable because ​5\6​ is closer to 1 than to ​1\2​, and ​3\8​ is close to ​1\2​, making the difference close to 1\2. ​

Step-by-step explanation:

Answer:

1/2 1 0

Step-by-step explanation:

Answer:

8. Scalene

9. Isosceles

10. Scalene

plz plzz plz mark as brainliest

Answer:

Step-by-step explanation:

Our even numbers from 1-9 are:

The largest possible number using the even numbers once is 8642.

Hoped this helped

Answer:

18, 19, 20

Step-by-step explanation:

(n) + (n + 1) + (n + 2) = 57

3n + 3 = 57

3n = 57 - 3 = 54

n = 54/3 = 18

three numbers are 18, 18+1, 18+2

18, 19, 20

Answer:

18,19,20

Step-by-step explanation:

x + (x+1) + (x+2) = 57

x + x + 1 + x + 2 = 57

Combine like terms

3x + 3 = 57

subtract 3 from both sides

3x = 54

divide both sides by 3

x = 18

The answer is 18, 19, 20

Since we know the value of x, we can look at it like this:

x + (x+1) + (x+2) --- > 18 + (18+ 1) + (18+2) --> 18 + 19 + 20

Answer:

Rotation of point through 90° about the origin in clockwise direction when point M (h, k) is rotated about the origin O through 90° in clockwise direction. The new position of point M (h, k) will become M’ (k, -h).

Answer:

The measure of the hypotenuse squared is equal to the sum of the side measures squared.

Step-by-step explanation:

I used process of elimination to find the odd one out. All of the other facts are true hence the last one is wrong.

Answer:

Step-by-step explanation:

Answer:

multiple 1800 by 10%

Ans: 1,620

multiple 1800 by 8%

Ans: 144

subtract the discount of 10% from 8%

1620 -144

Ans:1,476

so therefore the price for the calculator is 1476.

Answer:

l = 21

w = 9

P = 60

Step-by-step explanation:

l = 12 + w

A = l*w = 45

substitute l = 12 +w

45 = (12 + w) * w

45 = 12w + w^2

w^2 + 12w - 45 = 0

w^2 + 2*6*w +36 = 45 + 36 (added 36 on both sides 6^2)

(w + 6) ^2 = 45+36 = 81

w + 6 = +-9

As width cannot be negative w = 9

so l = 12 + 9

= 21

Perimeter = P = 2 (l + b)

= 2 ( 21 + 9)

= 2 (30)

= 60

Answer:

B

Step-by-step explanation:

Answer:

quotient

example:

in a statement like 35 / 7 = 5 ,

35 is the dividend, 7 is the divisor, and 5 is the quotient

Answer:

Step-by-step explanation:

            4321

             1234

            5555

5555 in base 7 is equal to 2000 in base 10

Answer:

3890

Step-by-step explanation:

1. Break down 4321 and add.

1=1

2=14

3=210

4=2800

3025

2. Break down 1234 and add.

4=4

3=21

2=140

1=700

865

3. Add them together to get 3890

I'm probably wrong but whatever.

Answer:

30

Step-by-step explanation:

Attached picture...

Answer:

Step-by-step explanation:

In the image below.

I hope I've helped you.

Answer:

www.symbolab.com , its a easy algebra calculator. wish u luck

Step-by-step explanation: