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timofeeve [1]
3 years ago
7

I'm stuck on this question and I dont want to second guess myself. ​

Mathematics
2 answers:
lubasha [3.4K]3 years ago
8 0

Answer:

x-intercept is 6,0 y-intercept is 0,-10

Step-by-step explanation:

GuDViN [60]3 years ago
7 0

Answer:

B

Step-by-step explanation:

Let's plug in 0s.

5x - 3(0) = 30.

5x = 30.

x = 6.

The x intercept will be (6,0)

5(0) - 3y = 30.

-3y = 30.

y = -10 .

The y intercept will be (0,-10)

It seems like the computer is wrong but the answer is B

(I fact checked myself down there)

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17. A bottlenose dolphin jumps out of the water. The path the dolphin Travels can be
Anton [14]

Answer:

a. 5 units

b. 5 units

Step-by-step explanation:

Given:

The path the dolphin Travels can be  modelled by h = -0.2d^2 + 2d where  h represents the height of the dolphin and d  represents horizontal distance.

To find: maximum height that the dolphin reaches and the distance covered by dolphin

Solution:

h = -0.2d^2 + 2d

Differentiate with respect to d

\frac{\mathrm{d} h}{\mathrm{d} d}=-0.4d+2

To find the critical point, put \frac{\mathrm{d} h}{\mathrm{d} d}=0

d=\frac{2}{0.4}\\=\frac{20}{4}\\=5 \,\,units

Differentiate \frac{\mathrm{d} h}{\mathrm{d} d} again with respect to d

\frac{\mathrm{d^2} h}{\mathrm{d} d^2}=-0.4

So, d=5 is a point of maxima

h(5) = -0.2(5)^2 + 2(5)\\=-0.2(25)+10\\=-5+10\\=5\,\,units

a. 5 units

b. 5 units

4 0
3 years ago
Samantha is building a miniature maze for a science experiment. she determines that she needs 6 yards of wood for the exterior w
Eduardwww [97]

Answer:

18 ft

Step-by-step explanation:

Convert yards to feet:

 6 yds        3 ft

------------ * ------------ = 18 ft

      1            1 yd

8 0
3 years ago
The time that it takes a randomly selected job applicant to perform a certain task has a distribution that can be approximated b
Gala2k [10]

Answer:

214.5 seconds or less time will qualify individuals for such training

Step-by-step explanation:

given that the time that it takes a randomly selected job applicant to perform a certain task has a distribution that can be approximated by a normal distribution with a mean value of 150 sec and a standard deviation of 25 sec.

i.e. X the time that it takes a randomly selected job applicant to perform a certain task is N(150,25)

The fastest 10% are the ones who are above the 90th percentile

We know 90th percentile for Z std normal score is 1.28

Corresponding X score would be

x=\mu+1.28 \sigma\\X= 150+1.28(25)\\= 214.50

Round off to one decimal

214.5 seconds or less time will qualify individuals for such training

3 0
3 years ago
Pleaseeeeeee helpppppp
expeople1 [14]
I’m not sure that question.... sorry
5 0
3 years ago
Read 2 more answers
A park is shaped like a trapezoid. It has an area of 7.2 square miles. One base is 1.2 miles, and the other base is 2.4 miles lo
WINSTONCH [101]
7.2÷(1.2+2.4)=2
2÷.5=4
So the height equals 4
6 0
3 years ago
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