c^2-2cd+d^2 = (c-d)^2
We can verify this with the following steps
(c-d)^2 = (c-d)(c-d)
(c-d)^2 = c(c-d) - d(c-d)
(c-d)^2 = c^2-cd-cd+d^2
(c-d)^2 = c^2-2cd+d^2
A surface area of a cube is related to its volume V by A = 6. V(2/3). If the volume of a
cube is 35 cubic centimeters, what is its surface area to the nearest square centimeter?
The surface area of the cube is 64 cm².
What is volume?Volume is the amount of space that is enclosed within a container.
To calculate the surface area of the cube, we use the relation below.
Formula:
A = 6V[tex]{2/3}[/tex]............ Equation 1Where:
A = Surface area of the cubeV = Volume of the cube.From the question,
Given:
V = 35 cm³Substitute this value into equation 1
A = 6(35)[tex]{2/3}[/tex]A = 6(10.6999)A = 64.2 A = 64 cm²Hence, The surface area of the cube is 64 cm².
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Select "equivalent" or "not equivalent" for each pair of expressions.
Expressions
equivalent or not equivalent?
5x - 7+ 3x and 3x - 7+ 5x equivalent not equivalent
4y+9+ 3y and 3y+9+ 4y equivalent not equivalent
6z - 2z + 4 and 4 + 22 - 6z equivalent not equivalent
Answer:
1 and 2 are equivalent and 3 is not equivalent because rhe numbers are are just swapped you have to pay attention to the signs.
Answer:
1 and 2 are equivalent and 3 is not equivalent
Step-by-step explanation:
How much can a computer technician earn in two
years? Assume there are no raises in that time.
Answer:
$72,920
Step-by-step explanation:
hope this helps
Khadija answered 174 questions correctly on her multiple choice science final and earned a grade of 87%. How many total questions were on the final exam
The total number of questions is an illustration of proportions
The total number of questions is 200
How to determine the total questions?From the question, we have:
Grade = 87%
Questions answered = 174
Represent the total questions with x.
So, the total question is calculated as:
174 = 87% * x
Make x the subject
x = 174/87%
Evaluate the quotient
x = 200
Hence, the total number of questions is 200
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please can anyone help with this ? I have no clue here
There are ten pieces of pizza. Anthony ate 1/8 of the pizza for dinner. He ate 3/10 for a bedtime snack
How much of the pizza has he eaten in all?
Give your answer as a fraction, reduced to lowest terms.
Answer:
I think 4/10 pizza he had ate .
The amount of the pizza he ate will be 9 / 40.
What is Algebra?Algebra is the study of graphic formulas, while logic is the interpretation among those signs.
A fraction number is a number that represents the part of the whole, where the whole can be any number. It is in the form of numerator and denominator.
There are ten pieces of pizza.
Anthony ate 1/8 of the pizza for dinner.
Then the amount of pizza left will be
⇒ 1 – 1/8
⇒ (8 – 1) / 8
⇒ 7/8
He ate 3/10 for a bedtime snack.
Then the amount of the pizza will be
⇒ 7/8 – 1/10
⇒ 31/40
The pizza has he eaten in all.
Then the amount of the pizza he ate will be
⇒ 1 – 31/40
⇒ 9 / 40
Then the amount of the pizza he ate will be 9 / 40.
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- Williar's age is w and Jamie's age j are related by the equation w=2j-12. When William is 36.5
years old, how old is Jamie? *
a. 24.25 year
b. 20 year
c. 36.5 year
c. 28 year
Answer: A) 24.25
Step-by-step explanation: Plug in 36.5 for W and solve. Isolate the J by adding 12 to both sides then divide both sides by 2 :)
A friend ate 2/3 of a small muffin and his friend ate 2/3 of a large muffin, did they eat the same amount?
Answer:
no, because both muffins are different sizes, meaning that if a friend ate 2/3 of a small muffin than that would be different
A fish is 15 meters below the surface of the ocean. What is its elevation:
Answer:
-15 meters
Step-by-step explanation:
Elevation means the height to which something is elevated. If the object is above sea level then it is positive. If the object is below sea level it is negative.
The elevation of the surface of the ocean is, - 15 meters.
What is mean by Subtraction?Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.
Given that;
A fish is 15 meters below the surface of the ocean.
Here, The fish is 15 meters below the surface of the ocean.
Hence, Its elevation shows in negative sign.
Thus, We get;
The elevation of the surface of the ocean = - 15 meters.
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PLEASE HELP! I WILL MAKE YOU BRAINLIST!
The answer would be A.
15.40.
Step-by-step explanation:
1in : 25mi = x inches : 385mi
25x = 385 (divide both sides by 25)
x = 15.40 inches
Maxine used 2 potatoes to make ½ gallon of stew. How many potatoes should she use if she is going to make a gallon of stew?
What is the following quotient? startfraction 9 startroot 2 endroot over 4 minus startroot 7 endroot endfraction startfraction 9 startroot 7 endroot startroot 14 endroot over negative 3 endfraction startfraction 36 minus 9 startroot 7 endroot 4 startroot 2 endroot minus startroot 14 endroot endfraction startfraction 36 9 startroot 7 endroot 4 startroot 2 endroot startroot 14 endroot over 9 endfraction startfraction 79 over 9 endfraction
The quotient of the following expressions is given as 7.69, -9.18, 14.10, 7.69, and 8.78.
What is the quotient?The quotient means the separation of something into different parts, sharing of something among different people, places, etc.
1. Start fraction 9 + start root 2 and root over 4 minus start root 7 end root end fraction.
[tex]\dfrac{9 + \sqrt2}{4-\sqrt7} = 7.69[/tex]
2. Start fraction 9 start root 7 end root + start root 14 end root over negative 3 end fraction.
[tex]\dfrac{9\sqrt7 + \sqrt{14}}{-3} = -9.18[/tex]
3. Start fraction 36 minus 9 start root 7 end root + 4 start root 2 end root minus start root 14 end root end fraction.
[tex]36 - 9\sqrt7 + 4 \sqrt2 - \sqrt{14} = 14.10[/tex]
4. Start fraction 36 + 9 start root 7 end root + 4 start root 2 end root + start root 14 end root over 9 end fraction.
[tex]\dfrac{36 + 9\sqrt7 + 4 \sqrt2 + \sqrt{14} }{9} = 7.69[/tex]
5. Start fraction 79 over 9 end fraction.
[tex]\dfrac{79}{9} = 8.78[/tex]
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Solve for 100 points
Answer:
3:59:253:53:527:1253:5Step-by-step explanation:
Here it is given that the scale factor of two cylinders is 3:5 . And we need to find out the ratios of circumference , surface area , height , diameter , volume and radii of the cylinders .
So let us assume that ,
Radius of first cylinder be 3x and that of second be 5x .Height of first cylinder be 3y and that of second be 5y .Formulas to be used :-
Circumference :- The base of cylinder is circle . So ,
[tex]\longrightarrow C = 2\pi r [/tex]
Surface Area :- The curved surface area is ,
[tex]\longrightarrow S.A. = 2\pi rh [/tex]
Diameter :-
[tex]\longrightarrow d = 2r [/tex]
Volume :-
[tex]\longrightarrow Volume = \pi r^2h [/tex]
Now refer to the attachment for answer .
Answer:
1. 3:5
2. 9:25
3. 3:5
4. 3:5
5. 27:125
6. 3:5
Step-by-step explanation:
just look above me ;)
solve the equation for the indicated variable (for q)
[tex]p = \frac{q}{4} - r[/tex]
Answer:
q=4(p-r)
Step-by-step explanation:
p-r=q/4
4(p-r)=q
answer: [tex]4p + r = q[/tex]
work:
[tex]p = \frac{q}{4} -r[/tex]
[tex]p + r = \frac{q}{4}[/tex]
[tex]4 *p+r=\frac{q}{4} *4[/tex]
[tex]4p + r = q[/tex]
what is the inequality for (-3,5)
Answer:
8
Step-by-step explanation:
-3 + 8 = 5
The price of a flight was increased by 3% to £720. What was the price before the increase?
Answer:
698.4
Step-by-step explanation:
bec we will do 720-3% which is going to give us the number exactly simple right ?
What is the slope-intercept form of m= -4
Answer:
y = - 4x
Step-by-step explanation:
The slope-intercept form of a line is y = mx + b. In this case, m is - 4 and no b value is given.
Higher Order Thinking Three classes
have the same number of students. The
teachers compared attendance on one
Friday. Mr. Lopez had 92.5% of his
students in class. Mrs. Foster had 20 of
her students in class. In Ms. Kelly's class,
0.9 of the students were present. Which
teacher had the most students in class
that Friday?
Answer:
Mrs.Foster ,Mr.Lopez, Ms.Kelly
Step-by-step explanation:
Mr.Lopez 92.5/100x
Mrs.Foster 95/100x
Ms.Kelly 90/100x
Aubrey went to the movies with two friends. They bought 2 boxes of candy to share. Each box costs $2.75. How much did th
candy costs
If LMN = XYZ, which congruences are true by CPCTC? check all that apply.
Answer:
ML congruent YX
Step-by-step explanation:
You have chosen the correct answers
but , also [ ML congruent YX ]
Answer: Z= N
ML= YX
X=L
Step-by-step explanation:
Given the measurement 3.60 what is the precision
Answer:
0.01 because depend on uncertainty
The measure of the angles of a triangle are shown in the figure below . Solve for x
Answer:
56
Step-by-step explanation:
because the triangle is 180 degrees
Answer:
x = 56°
Step-by-step explanation:
Hello!
All angles in a triangle add up to 180°
84 + 40 = 124
180 - 124 = 56°
If you need further explanation, let me know!
- profparis
What is the length of DE?
Answer:
The length of DE is 5 because they are similar triangle .
Explanation:
The triangles are similar. We can use the SAS similarity theorem to prove that claim.
Because the triangles are similar, the corresponding sides form a proportion like shown below
12/8 = 9/x
12x = 8*9 ... cross multiply
12x = 72
x = 72/12
x = 6 which is why the answer is choice B
What is the value ol x?
A) x=32
B) x=36
C) x=37
D) x=40
C
because if you divide 15 by 20 on a graf and find what number is closes to it
please help :/
i attached the picture of the question, to this :)
9514 1404 393
Answer:
D, F, G
Step-by-step explanation:
Exponents of variables in a polynomial must be non-negative integers. The non-negative integers on the list are ...
D. 0
F. 1
G. 2
TwT can someone help me
Convert 0.4 to a fraction
Convert 0.35 to a fraction
Answer:
0.4=2/5
0.35=7/20
Step-by-step explanation:
-5n - 6n < 8 - 8n -
Simplify.
Show work please.
Answer:
-n← 2 2/3
Step-by-step explanation:
first combine like terms, and then simplify
Answer:
n> [tex]-\frac{8}{3}[/tex]
Add similar elements -5n-6n=-11
Add 8n to both sides
Simplify -3n<8
Multiply both sides by -1
Simplify 3n>-8
Divide both sides by 3
Simplify
:)Hope you enjoy this:)Answer,plss?
7(x+8)=49
Answer:
the answer is -1
Step-by-step explanation:
A small boat leaves the dock at Camp DuNuthin and heads across the Nessie River at 17 miles per hour, relative to the water, at a bearing of S60° W. The river is flowing due east at 6 miles per hour. What is the boat's true speed and heading? Round the speed to the nearest mile per hour and express the heading as as a bearing with the angle rounded to the nearest tenth of a degree
The speed of the boat will be 12.18 mph, and the angle of its direction measured from the positive x-axis will be 224.3°
What we can say about the boat speed?
First, let's define North as the positive y-axis and east as the positive x-axis.
In this coordinate axis, the angle S 60° W is equal to 210°.
Then the velocity of the boat will be:
v = (17mph*cos(210°), 17mph*sin(210°))
Now we also need to add the speed of the river, which is 6mph to the east, then the final velocity of the boat will be:
v = (17mph*cos(210°) + 6mph, 17mph*sin(210°))
v = (-8.72mph, -8.5 mph)
Then the speed of the boat will be:
|v| = √( (-8.72mph)^2 + (-8.5 mph)^2) =12.18 mph
And the angle, measured from the positive x-axis, will be given by the arctangent of the quotient between the y-component and the x-component:
Atan(-8.5 mph/-8.72mph) = 224.3°
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Is this a direct variation?
y = 2x
Answer:
Yes
Step-by-step explanation:
Direct variations are of the form y=kx, where k is some constant.