This answer is 18y • (y - 1)
ExplanationStep by step solution:
Equation at the end of step 1:
[tex]9 (x - y) ^2 - 9 (x^{2} - y^{2})[/tex]
Equation at the end of step 2:
[tex]9 (x^2 + y^2 - 2xy) - 9 (x^2 - y^2)[/tex]
Equation at the end of step 3:
[tex]9x^2 + 9y^2 - 18xy - 9x^2 + 9y^2[/tex]
Equation at the end of step 4:
After performing basic +, - operation we get:
[tex]18y^2 - 18xy[/tex]
Answer is: 18y. (y – x)
Express the following as the difference of two squares
(7a+2)(7a-2)=
(7a+2)(7a-2)
= (7a)^2 - (2)^2
= 49a^2 - 4
I WILL MARK YOU THE BRAINLIEST IF YOU ANSWER QUICKLY AND CORRECTLY
The amount of money that Mary earns varies directly with the number of hours worked. If Mary earns $320 for working 40 hours, determine the constant of variation.
A) 6
Eliminate
B) 7
C) 8
D) 9
8
Because it is most likely to be 8
If you divide $320 by 40 your answer is 8, so Mary probably earns 8 dollars an hour.
Find the slope of a mountain that descends 100 meters for every horizontal distance of 1,000 meters.
We are given: a mountain descends (getting down vertically) = 100 meter.
For getting down we would take it by a negative number so it would be -100 meter.
And every horizontal distance = 1,000 meter.
We know formula for slope is = Change in vertical distance/ Change in Horizontal distance.
Plugging values in formula of slope above, we get
Slope = -100/1000 = -1/10 or -0.1.
Therefore, we could say the slope of a mountain is [tex]-\frac{1}{10}\ or \ -0.1.[/tex]
I need help determining which answer is correct for this question. "Which is the correct label of parallel lines?" Offering 34 points. Thanks in advance.
the answer should be D
The answer shoud be D because the line are across from each other.
which graph shows the solution to the following inequality? 4d-6<18
Answer: C
Step-by-step explanation:
4d - 6 < 18
+6 +6
4d < 24
[tex]\frac{4d}{4} < \frac{24}{4}[/tex]
d < 6
Graph: ←----------------o 6
Answer:
option (c) is correct.
d < 6
On number line this is shown as attached below.
Step-by-step explanation:
Given inequality 4d - 6 < 18
We have to plot the inequality and check out of given graph which graph satisfies the Given inequality 4d - 6 < 18
Consider the given inequality 4d - 6 < 18
Add 6 both sides, we have,
4d - 6 + 6 < 18 + 6
Simplify we get,
4d < 24
Now, divide both side by 4, we have,
[tex]\frac{4d}{4}<\frac{24}{4}[/tex]
Simplify , we have,
d < 6
On number line this is shown as attached below.
Thus, option (c) is correct.
Ill give brainliest! if you answer this math question
- 5/6
Negative five sixths
Hope it helps ❤️
If f(x) = 3x^2 – 2x + 4 and g(x) = 5x^2 + 6x – 8, find (f - g)(x).
Answer:
[tex]-2x^2-8x+12[/tex]
Step-by-step explanation:
[tex]f-g=(3x^2-2x+4)-(5x^2+6x-8)=3x^2-2x+4-5x^2-6x+8=\\ =-2x^2-8x+12[/tex]
(f-g)(x)=f(x)-g(x)
=((3x^2)-2x+4)-((5x^2)+6x-8)
=(-2x^2)-8x+12
The answer is -2x^2 -8x+12. I hope this helps.
The legs of a right triangle measure 5 inches and 7 inches. If theta is the angle between the 7 inch leg and the hypotenuse, sin theta = ___
Answer:
sin (θ) = 0,58
Step-by-step explanation:
The formula for sin (θ) is:
sin (θ) = (opposite side)/hypotenuse
The opposite side to the θ angle is the one that measures 5 inches, but we don’t know the measure of the hypotenuse. The Pythagoras theorem gives us the following formula:
side 1²+ side 2²= hypotenuse²
Then,
5²+7²=74
√74= 8,60 inches; this is the measure for the hypotenuse.
Replacing this value in the formula for sine:
sin (θ) = 5/8,60 = 0,58
I don't want the answer, I just need an explanation. I don't understand what this means.
[tex]\bf \textit{volume of a cone}\\\\V=\cfrac{\pi r^2h}{3}~~\begin{cases}r=radius\\h=height\\\end{cases}\implies 3V=\pi r^2 h\implies \cfrac{3V}{\pi r^2}=h\\\\\\[-0.35em]\\\rule{34em}{0.25pt}\\\\\begin{cases}V=120\pi \\r=6\\\end{cases}\implies \cfrac{3(120\pi )}{\pi 6^2}=h\implies \cfrac{360\pi }{36\pi }=r\implies 10=r[/tex]
Which of the following rational numbers is equal to 3 point 4 with bar over 4? 31 over 9, 32 over 9, 33 over 9, 34 over 9
ANSWER
[tex]3.\bar4 =\frac{31}{9}[/tex]
EXPLANATION.
Let [tex]y=3.\bar4---(1)[/tex]
This is a recurring decimal. So we need to multiply by 10 to form a new equation that will cater for the recurring but when subtracted.
Multiply (1) by 10 to obtain,
[tex]10y=34.\bar4---(2)[/tex]
Equation (2) -equation (1) gives;
[tex]9y=31[/tex]
[tex]\Rightarrow y=\frac{31}{9}[/tex]
Hence the correct answer is A.
A rope is used to anchor a boat to the shore. The angle of depression from the boat to the water is 40° . The height of the boat above the water is 25.17 feet. What is the length of the rope that is anchoring the boat to the shore?
Final answer:
To find the length of the rope anchoring the boat to the shore, use the tangent function with the angle of depression and the height of the boat above the water.
Explanation:
To find the length of the rope anchoring the boat to the shore, we can use trigonometry. The angle of depression from the boat to the water is 40° and the height of the boat above the water is 25.17 feet. We can use the tangent function to find the length of the rope. tan(40°) = opposite/adjacent. The height of the boat above the water is the opposite side and the length of the rope is the adjacent side. So, we have:
tan(40°) = 25.17/adjacent
Solving for the adjacent side, we get:
adjacent = 25.17 / tan(40°)
Using a calculator, we can evaluate this expression to find that the length of the rope is approximately 33.95 feet.
Can 15 over 240 be simplified
Answer:
yes 1/16
Step-by-step explanation:
3x3x3x3x3x3= 729? dose it equal this:729?
Yes, this does equal 729.
Yes, you are correct. Just checked the calculator. Have a nice rest of your day
What is the distance between the points (−3, 5) and (−3, −6) ?
1 unit
5 units
6 units
11 units
the answer is 11 units go -5,-4 -3 -2 -1 0 1 2 3 4 5 that means its 11 units
The distance between the points (−3, 5) and (−3, −6) is 11 units.
What is distance between points?Distance between two points is the length of the line segment that connects the two given points.
Given are two points, (−3, 5) and (−3, −6)
We know, distance between two points are
= √(x2-x1)²+(y2-y1)²
= √(-3+3)² + (-6-5)²
= √121 = 11
Hence, The distance between the points (−3, 5) and (−3, −6) is 11 units.
For more references on distance between the points, click;
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which decimal represents the shaded portion
0.003
0.03
0.3
3.0
Answer: 0.03
Step-by-step explanation: I got it right
if a cashier can count a certain sum of cash in 2 hours and another cashier can count the same sum in 3 hours then both cashiers working together will count this sum in what
they can do it in five hours
Divide. 110 ÷ (−5)
A:−22
B:−5
C:5
D:22
The answer is -22. :P
[tex]\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{-b}=-\frac{a}{b},=-\frac{110}{5}[/tex]
[tex]\mathrm{Divide\:the\:numbers:}\:\frac{110}{5}=22[/tex]
The Correct Answer Is A.−22
Hope This Helps!!!
determine the tax if a flat tax of 15% is applied to an income of $400,000.
Hey there!
Let's start by simply finding 1% of $400,000.
To do this we can divide by 100, since 1% is the same thing as 1/100.
400,000 ÷ 100 = 4,000
Next, we can multiply 4,000 by 15, because 4,000 is 1% and we are looking for 15%.
4,000 x 15 = 60,000
This means the tax is $60,000.
Hope this helps!
695 kilometers = 278 kilometers in hours
Answer:
This is not a complete question...
Mia needs to separate 450 pens into 18 packs.each pack will have the same number of pens. How many pens should be put in each pack
Do 450 divided by 18, which equals 25
All you would need to do is divide 450 by 18. This equals 25. So, 25 pens should be put into each pack.
I hope this helps you! Comment if you have any questions or need help with anything else. :)
Write the number name for 43,080,700
The number name for 43,080,700 is Forty-three million, eighty thousand and seven hundred.
It is required to find the number name.
What is real number?Real numbers are numbers that include both rational and irrational numbers. Rational numbers such as integers (-2, 0, 1), fractions(1/2, 2.5) and irrational numbers such as √3, π(22/7), etc., are all real numbers.
Given:
The number name for 43,080,700 is
Forty-three million, eighty thousand and seven hundred.
Therefore, the number name for 43,080,700 is Forty-three million, eighty thousand and seven hundred.
Learn more about real number here:
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what's the answer to 56.5 × 3?
The answer is 169.5 because you multiply
I need help on numbers 8,10, and 12
8. 40%
10. 192
12. 0.04
One number is one-fifth of another number. The two numbers total 18. Find the numbers
Answer:
One number is 17 and the other is 85.
Step-by-step explanation:
Let the numbers be m and n. Let m = (1/5)n. Note that m+n = 18.
Substituting (1/5)n for m in the 2nd equation, we get (1/5)n + (5/5)n = 18. Multiplying all three terms by 5 to remove fractions, we get n + 5 = 90, so that n = 85. m is (1/5) of 85, or m = 17.
Final answer:
The two numbers in question are 15 and 3. To find them, establish a variable for the larger number, set up an equation based on the given ratio and sum, solve for the variable, and divide by five to get the smaller number.
Explanation:
The student wishes to find two numbers where one number is one-fifth of the other and their sum is 18. Let's denote the larger number as x and the smaller number as one-fifth of x, or x/5. The equation representing their sum is x + (x/5) = 18. To solve for x, we first find a common denominator, which is 5, and rewrite the equation as 5x/5 + x/5 = 18. Combining like terms gives us 6x/5 = 18. Multiplying both sides by 5/6, we get x = (18 × 5) / 6. Simplifying this gives x = 15. We then calculate x/5 to find the smaller number, yielding 3. Therefore, the larger number is 15 and the smaller number is 3.
13 6 1. 3x − 3 4 = 13 6 2. 3x − 3 4 + 3 4 = 13 6 + 3 4 3. 3x = 26 12 + 9 12 4. 3x = 35 12 5. ( 3 1 ) 3 1 x = 35 12 ( 3 1 ) 6. x = 105 12 In which step did Jerry make an error?
Answer:
The answer is: d) in step 5 he should have multipled both sides by 1/3.
Answer:
D
Step-by-step explanation:
Using the information in the table, how many milliliters are in 7 kiloliters?
The correct answer is 7e+6 or in other words 7000000
A patient in the emergency room is monitored for heart rate, oxygenation level, etc. The nurse notices that the heart beat averages 80 but drops to 60 beats every other minute and then spikes to 120. The cardiologists have asked the nurses to notify them if this happens, as that pattern is indicative of heart attacks. The nurse calls the doctor.
Is the nurse using inductive or deductive reasoning?
the height of a right cylinder is 3 times the radius of the base. The volume of the cylinder is 24 cubic units
Let the radius of the base be r units
Then the height will be 3r units
Volume of cylinder = pi r^2 h
24=pi r^2 × 3r
Pir^3 = 24/3
Pi r ^3 =8
r^3 = 8/pi
R = 2 / pi^1/3
Height = 6/pi^1/3
Give one example of when you would make a frequency table to solve the problem
Answer:
Consider a class in which there are 40 students .There is a Mathematics test of 50 marks .Two students were absent.The Duration of test was for one and half an hour.
So Marks of students according to their roll number are 12,8,4,20,25,36,2,29,35,39,5,48,43,37,38,29,17,15,15,25,31,32,26,28,27,24,2,15,34,,50,46,48,37,28,26,45,49,24.
So in this case it would be better to prepare frequency polygon by selecting a class interval.
Class interval = 0-5,5-10,10-15,15-20,20-25,25-30,30-35,35-40,40-45,45-50.
Or 0-10,10-20,20-30,30-40,40-50.
or you can make class interval by yourself.
a value bag of dog food is 40 Ibs. martys dog eats 1 Ib. of food per day. if the bag of dog food cost 29.99, what is the approximate cost per day.
About 1.3 pouds per day
To find this answer, you divide 29.99 by 40 and get 0.74975, which you round off to $0.75 for this question, hope it helped! <3
-12>x-7=
explain the inequality
-12 > x - 7 flip the inequality
x - 7 > -12 add 7 to both sides
x - 7 + 7 > -12 + 7
x > -5