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Kitty [74]
3 years ago
10

Need help on the middle question

Mathematics
2 answers:
Katarina [22]3 years ago
8 0
The formula for the volume of a cylinder is V= a X h 
Where a is the are of base and h is height. The base is a circle, so a= pi r^2
471=3.14 (r^2)(6) Divide both sides by 6, then 3.14
   25   =r^2   Your next step would be to find the square root of 25
5=r  Now you know the radius of the circle, but it asks for diameter. The radius is half of the diameter, so 5 X 2= 10. Your answer would be 10

lesya692 [45]3 years ago
6 0
V= pi * r^2 * h
471 = 3.14 * r^2 *6
471 = 18.84 * r^2
25 = r^2
Sqrt25 = r
5 = r
D= 2*5
D= 10in
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Can i have some help
SVETLANKA909090 [29]

Answer:

b. m = 2, b = 4

Step-by-step explanation:

y = mx + b

m = slope and b = y-intercept

The slope is 2 cause it's going up 2 squares while only going to the right one square each time, so u could right 2/1 but it's not necessary so just 2. And the intercept is 4 because that's where the line intercepts the y-axis.

8 0
3 years ago
Use the figure below to find the answer.
Serhud [2]

Answer: \frac{7\sqrt{2}}{2}

Step-by-step explanation:

\sin 45^{\circ}=\frac{7}{y}\\\\\frac{1}{\sqrt{2}}=\frac{7}{y}\\\\y=\frac{7}{\sqrt{2}}=\boxed{\frac{7\sqrt{2}}{2}}

4 0
2 years ago
Graph each absolute value function. State the domain, range, and y-intercept.
Paraphin [41]

Answer:

i)D:x\in R

ii)R: y\ge-3

iii) Y-int:(0,-1)

Step-by-step explanation:

i) The given absolute value function is;

f(x)=|x+2|-3.

The absolute value function is defined for all real values of x.

The domain is all real numbers.

ii) The range is all y-values that will make x defined.

The given function,

f(x)=|x+2|-3.

has vertex at, (-2,-3) and opens upwards.

This implies that, the minimum y-value is -3.

The range is y\ge-3

iii) To find the y-intercept substitute x=0 in to the function.

f(0)=|0+2|-3.

f(0)=|2|-3.

f(0)=2-3.

f(0)=-1.

The y-intercept is (0,-1)

See attachment for graph.

6 0
3 years ago
Given the function f(x) = 2x, find the value of f−1(32).
sergeinik [125]

Answer:

find the inverse

exchange x for y and  y for x

y=2x

then

x=2y---------> clear y

y=x/2

f−1(x)=x/2

for x=32

f−1(32)=32/2----------> 16

the answer is 16

3 0
3 years ago
Anica says that she can rewrite ANY subtraction problem as an addition problem. Is she correct? Explain how you know!
Mekhanik [1.2K]
Yeah i think so because
5-2=3
3+2=3
?

70-20=50
50+20=70
idek
3 0
3 years ago
Read 2 more answers
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