Answer:
The amount of steel used = 94.38 [tex]m^{2}[/tex]
Step-by-step explanation:
Height of the tank = 4.5 m.
Diameter of the tank = 4.2 m.
But,
radius = [tex]\frac{diameter}{2}[/tex]
= [tex]\frac{4.2}{2}[/tex]
radius = 2.1 m
Total surface area of a cylinder = 2[tex]\pi[/tex]rh + 2[tex]\pi[/tex][tex]r^{2}[/tex]
= 2[tex]\pi[/tex]r(r + h)
= 2 x [tex]\frac{22}{7}[/tex] x 2.1 (2.1 + 4.5)
= 44 x 0.3 (6.6)
= 87.12
Total surface area of a cylinder = 87.12 [tex]m^{2}[/tex]
Since [tex]\frac{1}{12}[/tex] of the steel was wasted, then;
[tex]\frac{1}{12}[/tex] x 87.12 = 7.26 [tex]m^{2}[/tex]
Actual area of steel sheet used = 87.12 + 7.26
= 94.38 [tex]m^{2}[/tex]
Thus, 94.38 [tex]m^{2}[/tex] of steel was used in making the tank.
Plz help me with this
Y'all what's the answer?
The number of eggs in the refrigerator e decreased by 9 equals 19. Enter an equation to represent the situation.
Answer:
e - 9 = 19
Step-by-step explanation:
Hope that helps!
Answer:
x-9= 19
x= 19+9
x= 28
to check if answer is correct say
28 - 9 = 19
so there are 28 eggs in the refrigerator
Find the length of the missing side
Answer:
C
Step-by-step explanation:
Using Pythagoras' identity in the right triangle
c² = 4² + 5² = 16 + 25 = 41 ( take the square root of both sides )
c = [tex]\sqrt{41}[/tex] ← exact solution → C
PLS HELP ILL GIVE BRAINLIEST
Explain how symmetry can help you find a figure's perimeter on the coordinate plane.
Answer: Think of it this way, symmetry is basically a mirror and you can better find the perimeter because you'll know that the sides are the same length
Step-by-step explanation:
Well if you have two sides that are symmetrical or an entire shape is symmetrical you can find the perimeter easier. So let's say two lines are symmetrical and one has the length of 2 the other one can also be two. If we have a symmetrical shape, then is would be a complete reflection.
A geometric object or form is symmetric when it can be broken up into two or more identical pieces and then placed in a systematic way.
what is symmetry ?The definition of symmetry is a proportionate and balanced similarity between two sides of an object, where one half is the mirror image of the other. For instance, certain geometric forms like, rectangle, and circle are symmetric along their respective axes of symmetry.
since the shape's two halves would perfectly match if you folded it along the line. The shape will also remain unchanged if a mirror were positioned along the line , a square has four lines of symmetry.
A geometric object or form is symmetric when it can be broken up into two or more identical pieces and then placed in a systematic way.
To know more about symmetry visit :-
brainly.com/question/15970176
#SPJ2
A tabletop in the shape of a trapezoid has an area of 5,550 square centimeters. Its longer base measures 115 centimeters, and the shorter base is 85 centimeters . What is the height?
Answer:
55.5 cm
Step-by-step explanation:
[tex]h=2*\frac{A}{a+b} \\\\h=2*\frac{5550}{115+85} \\\\h=2*\frac{5550}{200} \\\\h=2*\frac{111}{4} \\\\h=55.5[/tex]
anyone knows the answer
I really need help Please thank you
Answer:
D
Step-by-step explanation:
the median is 85, the mean is 85, the mode is 80.
it can't be A, B, or C. so it must be D.
Which one is smaller
Answer:
Jasmine
Step-by-step explanation:
Michelle: .75
Mike: .66
Rasheed: .83
Jasmine: .57
3. F (7,-2). If F is rotated 90 degrees about the origin. What are the
coordinates of F?
Well you said the Coordinates of F (7,-2) rotated 90 degrees
Plz help me
It algebra
Which could NOT be the length of the unknown side of the triangle?
A. 12
B. 14
C. 15
D. 18
Answer:
The answer is c 15 for the triangle
Step-by-step explanation:
answer for a brainlist!!!!
Answer:
Market A
Step-by-step explanation:
MA) 28/12= 2.33333
MB) 23.75/10= 2.375
MC) 15.75/6=2.625
Market A has the best price per shrimp
5 red marbles
6 blue marbles
3 green marbles
4 black marbles
2 yellow marbles
A marble will be drawn from the bag and replaced 100 times. What is a reasonable prediction for the number of times a green or black marble will be drawn?
Answer:
green= 3/20. black =4/20 or 1/5
Step-by-step explanation:
green = 3
black = 4
total = 20
green = 3/4
black = 4/20 = 1/5
What is the range of the ordered pairs (1,1), (2,6), (3,5), and (4,1)?
Answer:
45
Step-by-step explanation:
just cuz
Answer:
45
Step-by-step explanation:
Translate the description as an algebraic expression:
the difference of 4 and the absolute value of m
Answer:
4 - | m |
(Absolute value of something is denoted by writing the value between two perpendicular lines.)
How do you find the y-intercept of a line if you have the slope and a point? Describe the steps in order.
Using the "slope-intercept" form of the line's equation (y = mx + b), you solve for b (which is the y-intercept you're looking for). Substitute the known slope for m, and substitute the known point's coordinates for x and y, respectively, in the slope-intercept equation. That will let you find b.
Hope that helps!!!!
Answer:
it's the y value of the point where the line intersects the y- axis. For this line, the y-intercept is "negative 1." You can find the y-intercept by looking at the graph and seeing which point crosses the y axis.
Step-by-step explanation:
I hope this picture help you
Point-Slope
Instructions: Write the equation of the line in Point-Slope Form given the information below.
Slope =
Point = (1,4)
Point-Slope Form:
Check
7
Answer:
Look below.
Step-by-step explanation:
Point slope formula: y-y1=m(x-x1)
Point: (1,4)
First you have to plug in our point and the slope (m) if we had one.
1 will be plugged into x1 while 4 will be plugged into y1.
Answer: y-4=m(x-1)
This is as much as we can do with the information provided.
Jerome wants to walk to school. He lives 2 and 1/4 miles away. So far, he has walked 7/8 of a mile. How far does he have left to go?
Answer:
2 miles
Step-by-step explanation:
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
C
Step-by-step explanation:
Hello There!
so
y = -5x^2 + 8x +4
where y = height of ball and x = seconds after ball was thrown
The plus 4 is the y intercept and because y equals height of ball the 4 would represent the height that the ball was thrown at
~TheMathWiz
Answer:
It is C
Step-by-step explanation:
Tracy bought a new silk shirt. The shirt is on sale for 20% off the original price. If the original price was $56, what is the sales price of the shirt.
Group of answer choices
$11.20
$48.80
$44.80
$38.80
Answer:
$44.80
Step-by-step explanation:
$56 * 0.2 (%20) = $11.20
$56 - $11.20 = $44.80
1. Calculate the scale factor.
a. ⅓ b. ½ c. 2 d. 3
2. Find the value of x.
a. 3•0m b. 3•5 c. 4•5 d. 6•0
Answer:
eeeeeeeeeeeeeeeeeeeeeeeeeeeee
Step-by-step explanation:
PLEASE HELP I’LL GIVE YOU BRILLIANCE
Andrew has $350. She spends the same amount each week. After 5
weeks, she has $150 remaining. The relationship between the amount of
money Andrew has and the number of week s is represented by a line.
CREATE A TABLE OF VALUES for this scenario up to week 5 and then state
the rate of change of this scenario. *
-$50/week
$40/week
$50/week
-$40/week
Answer:
-40
Step-by-step explanation:
the equation will be 5x + 350 = 150
5x = -200
x = $-40/week
Answer:
I would say D
Step-by-step explanation:
Good Luck!
$10,000 compounded every 2 years with a 10% interest rate. How much will this be worth in 10 years
$110,000
I got this answer from multiplying 10,000 by 10 then adding 10% of 10,000 (which is one thousand) 10 times, which got me an additional 10,000, and that's how I got my answer. Please comment on this answer and tell me if it is wrong, I really hope it isn't wrong. I also hope this helps you on your way, have a great day!
WILL GIVE BRAINLIEST IF ANSWERED CORRECTLY!!!!!!
LMNP is rotated 90' clockwise around the origin.
8
7
6
5
4
M(3, 4) N(5, 4)
3
2
1
LO1)
2
P19,0)
3
4
5
6
7
8
9
What are the coordinates of N'?
O A. N'(4,-5)
O B. N'(-5, -4)
C. N'(-4,5)
D. N'(5,-4)
Answer:
B
Step-by-step explanation:
Answer:
im not sure but it may be B as if i cant see the photo
Step-by-step explanation:
tell me if i got it right or wrong :)
pls help with mathhh !
thx !
Answer:
z = 65
Step-by-step explanation:
z + 81 + 34 = 180 (Sum of angles in a triangle is 180)
z + 115 = 180
z = 180 - 115
z = 65
SU and VT are chords that intersect at point R. A circle is shown. Chords S U and V T intersect at point R. The length of S R is x + 6, the length of R U is x, the length of V R is x + 1, and the length of R T is x + 4. What is the length of line segment VT? 4 units 8 units 13 units 14 units
Answer:
13unitsStep-by-step explanation:
If SU and VT are chords that intersect at point R, then;
SR/RT = VR/RU and VT = VR + RT
Given the following
SR= x+6
RU = x
VR = x+1
RT = x+4
Substitute into the expression above;
x+6/x+4 = x+1/x
Cross multiply
x(x+6) = (x+1)(x+4)
Expand
x^2+6x = x^2+4x+x+4
x^2+6x = x^2+5x+4
x^2 will cancel out from both sides
6x = 5x+4
6x-5x = 4
x = 4
Get VT
VT = VR + RT
VT = x+1 + x+4
VT = x+x+1+4
VT = 2x+5
Since x = 4
VT = 2(4) + 5
VT = 8+5
VT= 13 units
Hence the length of the line VT is 13units
Answer: just so you have proof my homie above is correct
Step-by-step explanation:
got it right on edge
if the GCF is factored out of both terms in the expression 24x + 36y, what is the equivalent expression?
I’m just confused about factoring out the GCF
what is 3/4x2/3
a.5/12
b. 6/12
c.5/7
d. 6/7
Answer:
b is the correct answer
Step-by-step explanation:
hope this helps
Law of sines problem, please help. solving for x
Answer:
x = 62.9° (3 sig. fig.)
Step-by-step explanation:
Simply by using the cos law,
cosx = (1.3² + 2.1² - 1.9²)/2(1.3)(2.1)
x = 62.9° (3 sig. fig.)