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Kitty [74]
2 years ago
6

Surface area,pls help ​

Mathematics
1 answer:
erastovalidia [21]2 years ago
5 0
192
Solution
(2ft)x(12ft)x(8ft)
Answer
192
Sana po makatulong
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Derrick made a goal for 2 points during the basketball game. The path of the balls height in feet can be modeled by y=-x^2 -2x +
Delvig [45]
Given:
<span>y= -x^2 - 2x + 24.

graph of an equation of the form y = ax</span>² + bx + c ; a < 0, the parabola opens downward

a = -1 ; b = - 2 ; c + 24

x = 0 ; y = 0² - 2(0) + 24 ; y = 24   (0,24) y-coordinate

x = [-b <u>+</u> √(b² - 4ac)] / 2a 
x = [-(-2) <u>+</u> √(-2²) - 4(-1)(24)] / 2(-1)
x = [2 <u>+</u> √(4 + 28)] /  -2
x = [2 <u>+</u> √32] / -2
x = [2 <u>+</u> √(4*8)] / -2
x = [2 <u>+</u> 2 √8] / -2
x = 2 (1 <u>+</u> √8) / -2
x = 1 <u>+</u> √8 / -1

x = - 1 + √8  ; x = - 1 - √8
x = -1 + 2.83 ; x = -1 - 2.83
x = 1.83 ; x = -3.83

average:
1.83 + 3.83 = 5.66
5.66 / 2 = 2.83 midpoint

y = -(2.83)² - 2(2.83) + 24
y = - 8 - 5.66 + 24
y = 10.34

The maximum height of the ball is 10.34 feet.  (2.83,10.34)

7 0
4 years ago
The product of 2x3 and 6x5 is
Iteru [2.4K]

Answer:

2x3= 6 and 6x5= 30

Step-by-step explanation:

hope this helps hava gud day :P

8 0
3 years ago
Read 2 more answers
find z-score for the standard normal distribution with mean 0 and standard deviation 1 with the probability 0.9850
musickatia [10]

Answer:

z-score=2.17

Step-by-step explanation:

We are given that

Mean, \mu=0

Standard deviation, \sigma=1

Probability, p-value=0.9850

We have to find z-score for the standard normal distribution  with mean 0 and standard deviation 1 with the probability 0.9850.

To find the z score for the standard normal distribution we will use z-table.

From z- table we get

p-value =0.9850 when z -score=2.17

\impliesz-score corresponding to p-value=2.17

Therefore, the z-score for the standard normal distribution with mean 0 and standard deviation 1 with the probability 0.9850=2.17

6 0
3 years ago
Solve<br> Four times the sum of 6 and some number is 32. What is the number?
snow_tiger [21]

Answer:

Thus, the value of x is 1.

Step-by-step explanation:

4(2x+6)=32

8x+24 =32

8x =32-24

8x =8

x =8÷8

x =1

3 0
3 years ago
The number of dimes is seven more than 3 times the number of quarters
natima [27]

Dimes=d
Quarters=a
d= 3q+7

8 0
3 years ago
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