With mental math, you can perform equations quickly and efficiently. They also help you to develop your own strategies and solve more complex math equations. Hope this helps;)
x2 − x − 6 x2 = x − 6 2x + 2x + 12 x After multiplying each side of the equation by the LCD and simplifying, the resulting equation is .
Answer:
The answer to the second question is a.)x=-6 and x = -2/3
Step-by-step explanation:
A 64-cm strip is cut into eight equal pieces . What is the length in mm of one piece
Please help me!!!!
You miss 3 out of 10 questions on a science quiz and 4 out of 15 questions on a math quiz. Which quiz has a higher percent of correct anwsers.
I did 3/10 so 0.3 and 4/15 which is 0.266... so would it be the science quiz???
Please explain
A movie made $297.2 million in 22 weeks. How much did the movie make on average each week?
The movie made about $13.5 million per week.
I hope this helps!
NEED HELP ASAP! 34 POINTS!
Test each set of equivalent ratios to find which set of values describes the proportional relationship of the two quantities.
40.5 ounces of nuts to 48.6 ounces of raisins
A) (5, 7)(60, 84)(47, 65.8)
B) (36, 48.6)(2, 2.7)(12, 16.2)
C) (3, 3.9)(65, 84.5)(24, 31.2)
D) (11, 13.2)(99, 118.8)(20, 24)
125 ×5 - 25 + 10 =
a 520
b 610
c 1100
a certain fraction has a value of 1/5. the denominator is four more than three times the numerator. what is the fraction?
Nina received two emails on Monday every day that she received one more than twice as mini as the day before how many emails did she receive on Thursday
Use the net to compute the surface area of the three-dimensional figure.
A) 198 units2
B) 222 units2
C) 246 units2
D) 270 units2
Answer:
C) 246 units2 ^_^
Step-by-step explanation:
======What Is The Answer?======
Jack owed $12.00 in library fines.half of this was for 2 overdue videos.the rest was for 6 books that were each 20 days overdue how much did jack owe for each overdue book
Joy ate 1/4 of a pizza. If she divides the rest of the pizza into pieces equal to 1/8 pizza for her family how many pieces will her family get
Answer:
her family will have 6 slices of pizza
Step-by-step explanation:
1/4 is the same as 2/8 so all the slices are worth 1/8 so there are 6 eighths left
Which expression is equivalent to 2x - 17? A) -17 + 2x B) -2x + 17 C) -2x - 17 D) 17 + 2x
Four friends purchase 18.4 pounds of peaches. The peaches cost $1.75 per pound. The friends share the cost of the peaches equally. How do I do this!!!!?????????
Answer:
Cost per friend = 8.05 $
Step-by-step explanation:
Four friends purchase 18.4 pounds of peaches.
The peaches cost $1.75 per pound.
Total cost of peach = Total pounds x Cost of peach per pound
Total cost of peach = 18.4 x 1.75 = 32.2 $
Number of friends dividing the cost equally = 4
[tex]\texttt{Cost per friend = }\frac{\texttt{Total cost of peach}}{\texttt{Number of friends dividing the cost equally}}\\\\\texttt{Cost per friend = }\frac{32.2}{4}=8.05\$[/tex]
Cost per friend = 8.05 $
Calculate the product. 45.67×32.58
The undefined terms line and plane are needed to precisely define which mathematical term?
line segment
perpendicular lines
parallel lines
ray
The correct answer is:
parallel lines
Explanation:
Parallel lines are two lines in a plane that never intersect. This means the definition uses the undefined terms "line" and "plane."
The undefined terms line and plane are needed to precisely define which mathematical term will be parallel lines so option (C) will be correct.
What are a line and plane?A line section that can connect two places is referred to as a segment.
In other words, a line segment is just part of a big line that is straight and going unlimited in both directions.
A plane is a surface that is straight in nature a plane has a certain area but in most cases.
We know that parallel line are those lines which not intersect and lies on a plane.
Hence there are two things that are needed first is a line and the second is a plane the plane should be single for both lines not different.
For more about line
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Jennifer wrote the expression: (2x3 + 3x2 + 2x – 4) – (x3 – 2x2 – x – 1). What is the simplified form of this expression?
Solve for x. 2x/3 = 12
Answer:
x=18
Step-by-step explanation:
2x/3=12
2x=12*3
2x=36
x=36/2
x=18
I'm reading a book with 19 chapters. How many chapters should I read each week if I want to finish the book in 5 weeks or less?
PLEASE HELP!
What is another way to write the expression r⋅(18−3) ?
(r⋅18)−(r⋅3)
r⋅18−3
(r⋅18)⋅3
(r⋅18)−3
The other way to write the expression r⋅(18−3) will be (r⋅18)−(r⋅3). Option A is correct.
What is an expression?It is defined as the combination of constants and variables with mathematical operators.
It is given that the expression is, r⋅(18−3)
We have to expand the expression in order to write the expression in the other way,
The expanding form can be used to indicate the value of each digit in a number in arithmetic. Numbers that are expressed as the sum of each digit multiplied by its place value are known as expanded numbers.
There are the different identity used in the expanded form as,Use the following identity as
a(b-c) = ab-ac
=r⋅(18−3)
=(r⋅18)−(r⋅3)
Thus, the other way to write the expression r⋅(18−3) will be (r⋅18)−(r⋅3). Option A is correct.
Learn more about the expression here:
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The number line below represents which combined inequality?
number line with a closed circle on negative 6 and 5 with shading in between
x greater than or equal to −6 or x less than or equal to 5
x greater than or equal to −6 and x less than or equal to 5
x less than or equal to −6 and x greater than or equal to 5
x less than or equal to −6 or x greater than or equal to 5
we know that
number line with a closed circle on negative [tex]6[/tex] and [tex]5[/tex] with shading in between represent the combined inequality
[tex]x\geq-6\\x\leq5[/tex]
the solution is the closed interval---------->[tex][-6,5][/tex]
therefore
the answer is the option
x greater than or equal to [tex]-6[/tex] and x less than or equal to [tex]5[/tex]
see the attached figure to better understand the problem
What is the equation of the line that passes through the point (8,4) and has a slope of \frac{3}{2}
Driving from Chester to Boxerville, you see a sign that says you have seven miles to go. If the total length of the trip is 45 miles, how many miles have you already traveled?
What is the unknown quantity in the example?
I suck a writing proofs in geometry.... please someone explain it to me, i cant seem to reconize what's going on. I need major help in properties of congruent proofs.
In earlier mathematics courses, you have learned concepts like the commutative or associative properties. These concepts help you solve many types of mathematics problems. There are a few properties relating to congruence that will help you solve geometry problems as well. These are especially useful in two-column proofs, which you will learn later in this lesson!
The Reflexive Property of Congruence
The reflexive property of congruence states that any shape is congruent to itself. This may seem obvious, but in a geometric proof, you need to identify every possibility to help you solve a problem. If two triangles share a line segment, you can prove congruence by the reflexive property.
The ratio of boys to girls at the movie is 4:7. If there are 21 girls l, how many boys are at the movie?
Need help again just on number 3
The diameter of a small gear is 16 cm. This is a 2.5 cm more than 1/4 of the diameter of a large gear. What is the diameter of the large gear? Round to the nearest cm.
Show me a place value chart
which numbers below are even? 6, 12, 15, 24, 30
Simplify: Negative two and one-third minus negative ten and one-sixth
a Negative twelve and one-half
b Twelve and one-half
c Seven and five-sixths
d Negative seven and five-sixths
Determine the answer to (−3) + (−5) and explain the steps using a number line. please give example and how you did it
Use absolute value to express the distance between −12 and −15 on the number line.
a |−12 − (−15)| = −27
b |−12 − (−15)| = −3
c |−12 − (−15)| = 3
d |−12 − (−15)| = 27
please help im failing and its stressing
Answer:
[tex]1.\rightarrow -2 \frac{1}{3}-(-10) \frac{1}{6}\\\\\rightarrow \frac{-7}{3} -\frac{-61}{6}\\\\\rightarrow \frac{-14+61}{6}\\\\\rightarrow \frac{47}{6}\\\\\rightarrow 7\frac{5}{6}[/tex]
Option C→Seven and five-sixths
2.
(-3) +(-5)
Mark -3 and -5 on the number line.Move 5 units left of -3 to reach at -8.That is required sum.
3.
Distance between −12 and −15 on the number line is given by
|-12 -(-15}| or |-15 -(-12)|
=|-12+15| or |-15+12|
=|3| or |-3|
=3 units
Option C
|−12 − (−15)| = 3
Answer:
Its A its right
Step-by-step explanation:
not C