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aivan3 [116]
2 years ago
7

100 POINTS!!! PLEASE HELP ITS EZ :)

Mathematics
1 answer:
n200080 [17]2 years ago
3 0

In 2.44 seconds lindsey be 30 feet in the air.

<h3>What is Quadratic Equation?</h3>

A quadratic equation is a second-order polynomial equation in a single variable x, ax²+bx+c=0. with a ≠ 0 .

Given:

y= -16x²+33x+45

If the height is 30 feet.

30= -16x²+33x+45

-16x²+33x+45-30=0

-16x²+33x+15=0

16x²-33x-15=0

Solving the quadratic equation

x=-b±√b²-4ac/ 2a

x= 33 ± √2049/32

x= (33+ √2049)/32    and x=33-√2049/32

x=2.44 and -0.3833

Learn more quadratic equation here:

brainly.com/question/2263981

#SPJ1

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Complete the description of how to model -4x + 6 = 23
charle [14.2K]
Well I will put an example but the easiest way

Expanding-

When u ex and
7 0
3 years ago
Find the area of the parallelogram shown below.<br> 6<br> 5
rjkz [21]
Area of parallelogram = base x height

Area = 6 x 5
= 30 unit ^2
8 0
3 years ago
Charlotte is solving the following equation for X (x+3)^2-10=2 her first steps are given below (x+3)^2=12 x+3= + square root 12
Katarina [22]

The values of the x in the given equation are x = 6.46 and x = -0.46

<h3>Solving an equation </h3>

From the question, we are to solve the equation for x

The given equation is

(x+3)² -10 = 2

First, add 10 to both sides of the equation

(x+3)² -10 +10 = 2 +10

(x+3)²  = 12

Now, take the square root of both sides to get

x + 3 = ±√12

∴ x = 3 ± √12

x = 3+√12 OR 3-√12

x = 3 + 3.46 OR 3 - 3.46

x = 6.46 OR -0.46

Hence, the values of the x in the given equation are x = 6.46 and x = -0.46

Learn more on Solving an equation here: brainly.com/question/24334139

#SPJ1

7 0
2 years ago
Deijah gave Isaiah $6.25 in nickels and quarters. If 12 coins were quarters, how many coins were nickels? Which equation models
dem82 [27]
Deijah has $6.25. 

Now, this 6.25 is comprised of 0.05s and 0.25s. 
We know that there are 12 0.25s.

We now want to know how many remaining 0.05s there are.

Again, we know that the number of 0.05s he has, which is 12, multiplied by 0.05, plus the number of 0.25s he has, multiplied by 0.25, equals 6.25.

Thus, the answer is A, 0.25 x 12 + 0.05 x n = 6.25.
4 0
3 years ago
I BET YOU WONT ANSWER THIS PLZZZ ANSWER NO ONE HELPING ME
vichka [17]
Hello!

Your answer is the second option.

Hope this helps!
8 0
3 years ago
Read 2 more answers
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