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Gnesinka [82]
3 years ago
12

PLEASE HELP!!! It would be amazing if you could show the steps!!

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
5 0

Answer:

A:

|7-x|

B:

With absolute value equations, you can make two equations.

|7-x|-4\\xx>11

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Y=x^2+8x+6 16x-2y=-44
Naddik [55]
What? Is that two problems? I'll change my answer, give me my answer.
3 0
3 years ago
Choose the correct graph to fit the inequality x^2 - y^2 < 9
Makovka662 [10]
There is no pictures to choose the right one among tem.

However the equation could be rewritten as follows:

y=√(x²-9)

It is a HORIZONTAL parabola with the following constraint: 3=<x=<-3
5 0
3 years ago
The radius r(t)r(t)r, (, t, )of a sphere is increasing at a rate of 7.57.57, point, 5 meters per minute. At a certain instant t_
AnnZ [28]

Answer:

ds/dt=69743.35m^2/min

Step-by-step explanation:

The radius r(t)r(t)r, (, t, )of a sphere is increasing at a rate of 7.57.57, point, 5 meters per minute. At a certain instant t_0t 0 ​ t, start subscript, 0, end subscript, the radius is 555 meters. What is the rate of change of the surface area S(t)S(t)S, (, t, )of the sphere at that instant?

If i could understand the question correctly, the typos notwithstanding

r=radius, 555m

dr/dt=rate of change in radius 5m/min

ds/dt=rate of change in surface area   ?

S=area of a sphere 4\pi r^{2}

ds/dt=ds/dr*dr/dt.................................1

ds/dr=differentiation of the area of a sphere=8\pi r

ds/dt=8\pi 555*5

ds/dt=69743.35m^2/min

The surface area of the sphere will change by 69733.35 square meters for every minute.

7 0
3 years ago
2. The following data set shows the number of points scored by rugby team in season of matches: (5
shutvik [7]

Answer:

<u><em>Hope it helped :)</em></u>

Step-by-step explanation:

a)Mean  = \frac{sum \ of\ the\ data} {number\ of\ data} = \frac{598}{21} = 28.48\\\\b) Median = middle\ number = 28\\\\c)Mode = most \ frequently \ occured \ number = 25\\\\d) Range = 48 - 5 = 43\\\\e)Inter Quartile Range = Q_3 - Q_1 = 16

3 0
2 years ago
What is the circumference of the circle shown below? Use
Natali5045456 [20]

Answer:

Its B

Step-by-step explanation:

7 0
2 years ago
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