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hjlf
3 years ago
7

A student has gotten the following grades on his tests. What is the minimum grade he must get on the last test in order to have

an average of 85?
77, 95, 89, 86
Mathematics
1 answer:
Schach [20]3 years ago
6 0
Where are the following grades ? how am i supposed to answer without all parts of the question .
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How do the graphs of y=1/x and y=5/x+6<br><br> compare?
oee [108]

Answer:  The graph is attached.

Step-by-step explanation:  The given functions whose graphs are to be compared are as follows:

y=\dfrac{1}{x},~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(A)\\\\\\y=\dfrac{5}{x}+6.~~~~~~~~~~~~~~~~~~~~~~~~~(B)

In the attached figure, the graphs of both (A) and (B) are shown. We can easily see see from there, the shapes of both the graphs are same.

But, at x = 0, y = ∞ and at x = ∞, y = 0 in graph (A).

At  x = 0, y = ∞ and at x = ∞, y = 6 in graph (B).

Thus, the comparison can be seen in the figure very clearly.

8 0
3 years ago
four spheres of radius 6cm just fit inside a cylinder calculate the volume inside the cylinder that is empty leave your answers
Alekssandra [29.7K]

Answer:

The volume inside the cylinder is  1152\pi\ cm^3.

Step-by-step explanation:

Given : Four spheres of radius 6 cm just fit inside a cylinder.

To find : Calculate the volume inside the cylinder that is empty ?

Solution :

The volume of the cylinder is volume of 4 spheres.

The volume of sphere is V=\frac{4}{3}\pi r^3

The radius is 6 cm.

The volume of four spheres is

V=4\times \frac{4}{3}\times \pi\times (6)^3

V=1152\pi\ cm^3

Therefore, the volume inside the cylinder is  1152\pi\ cm^3.

8 0
3 years ago
Read 2 more answers
What is the value of the lower quartile? <br> a.0<br> b.8<br> c.6<br> d.2<br> thank you!
mr Goodwill [35]

Answer:

D

Step-by-step explanation:

From the box- plot the left hand side of the box represents the lower quartile

that is Q_{1} = 2 → D


8 0
3 years ago
I WILL GIVE BRAINLIEST AND 11 POINTS. PLZ HELP ASAP!!!
Sauron [17]

Answer:

C

Step-by-step explanation:

The rule of an 180⁰ degree rotation is:

(x,y) -> (-x,-y)

Of all the rules of rotation, this is the only one that fits.

3 0
3 years ago
For the data set 4, 5, 10, 11, 15, the mean, x, is 9. What is the standard
stich3 [128]

Answer:

4.53

Step-by-step explanation:

Given the data :

4, 5, 10, 11, 15

The mean = 9

The standard deviation of a sample :

s = √[Σ(x - mean)²/(n-1)]

s = √[((4-9)² + (5-9)²+(10-9)² + (11-9)² + (15-9)²) / (5-1)]

s = √(25+16+1+4+36)/4

s = √20.5

s = 4.527

s = 4.53

5 0
3 years ago
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