10x^2 y –5xy^2–2x^2 y +x^2y –3xy^2
Answer:
[tex]9x^{2}y - 8xy^{2}[/tex]
Step-by-step explanation:
[tex]10x^{2}y - 5xy^{2} - 2x^{2}y + x^{2}y - 3xy^{2} =[/tex] --> Equation
[tex](10x^{2}y - 2x^{2}y + x^{2}y) + (- 5xy^{2} - 3xy^{2}) =[/tex] --> Combine Like Terms
[tex]9x^{2}y - 8xy^{2}[/tex] --> Simplify
Hope this helped! <3
The half-life of carbon-14 is 5,730 years. Suppose a fossil is found with 10 percent as much of its carbon-14 as compared to a living sample. How old is the fossil?
1904 years
38077 years
19039 years
3808 years
Answer:
It is 19039 years
Step-by-step explanation:
I took the test and double checked on my calculator.
Examine the following diagram: 2 lines intersect to form 4 angles. From the top, clockwise, the angles are 1, 4, 2, 3. Which statement is not true of the given diagram? m∠2 + m∠3 = 180° m∠2 + m∠4 = 180° ∠3 and ∠4 are vertical angles ∠2 ≅ ∠4
Answer:
The answer is D on edg 2020
Step-by-step explanation:
brainliest plz
Answer:
Its D
Step-by-step explanation:
∠2 ≅ ∠4
A direct variation function contains the points (–8, –6) and (12, 9). Which equation represents the function?
y = –negative StartFraction 4 Over 3 EndFraction equals StartFraction 4 Over 3 EndFractionx
y = –k equals negative StartFraction 3 Over 4 EndFraction x.x
y = k equals StartFraction 3 Over 4 EndFraction x.x
y = k equals StartFraction 4 Over 3 EndFraction x.x
Answer:
y=-4/3x
Step-by-step explanation:
Suzy has a collection of quarters and dimes. Together she has 34 coins worth $6.40. How many quarters and how many dimes does Suzy have?
Please show your work :)
Answer:
Quarters = 20
Dimes = 14
Step-by-step explanation:
Dime = x = 10 cent = $0.1
Quarter = y = 25 cent = $0.25
x + y = 34 - - - (1)
0.1x + 0.25y = 6.40 - - - - (2)
From (1)
x = 34 - y
0.1(34 - y) + 0.25y = 6.40
3.4 - 0.1y + 0.25y = 6.40
3.4 + 0.15y = 6.40
0.15y = 6.40 - 3.40
0.15y = 3
y = 3 / 0.15
y = 20
x = 34 - y
x = 34 - 20
x = 14
Quarters = 20
Dimes = 14
If b=79° and c=83°
Work out angle a and d.
(15points)
Answer:
????????????????????
Answer:
A = 101 degrees d = 97 degrees
Step-by-step explanation:
180 - 79 = 101 as angles in a straight line = 180
101 + 79 + 83 = 263
360 - 263 = 97 degrees
Solve 11x - 6 = 10.5
Answer:x= 1.5
Step-by-step explanation:
I think
Answer:
X=1.5
Steps:
11x-6=10.5
11x=16.5
x=1.5
Find the number of sides of a regular polygon if one interior angle is 120 degrees.
A.4
B.6
C.3
D.5
Answer:
B. 6 sides
Step-by-step explanation:
Interior angles of a n side Regular Polygon = (180n – 360) / n
120 = (180n – 360) / n
120n =180n - 360
180n - 120n = 360
60n = 360
n = 6
check: sum of interior angles of 6 side polygon: 180 * (6-2) = 720
720/6 = 120
PLEASE HELP I will give Brainly to however gets it right. Miguel's irrigation tank for his large garden had 15.5 gallons of water before he began to
fill it at a rate of 1.4 gallons per minute.
Alejandro checked his irrigation tank and found it contained 45.5 gallons, before he
began draining his tank at a rate of 0.6 gallons per minute.
After how many minutes will the two irrigation water tanks have the same amount of
water?
Answer:
It will take 50 minutes.
Step-by-step explanation:
Because if you are trying to get 45.5 to 15.5 you need to drain 30 gallons of water, and to do that it will take 50 minutes because 0.6*50=30.
Hope this helps!
Pls mark brainliest if it is correct
will mark brainliest! in kite UVWX, m
Answer:
52
Step-by-step explanation:
Find two consecutive even integers such that the sum of the smaller and 3 times the larger is 330
I am so stuck please any one help
Answer:
The 2 numbers = 81 and 83
Step-by-step explanation:
As, one number = x
The other, because it's an even number and consecutive = x + 2
So the larger numbef here is x + 2
And they are saying 3 times x + 2 plus x = 330
So let's solve!
3 times x + 2 = 3(x+2) = 3x + 6
So we will add it to x = (3x + 6) +(x) = 4x + 6
So they are saying the sum of them will be 330
So, 4x + 6 = 330
4x = 330 - 6
4x = 324
x = 324/4
x = 81
So x is the first number = 81
And the second is x + 2 = 81 + 2 = 83
So the 2 numbers are 81, 83
Lets check!
3 times the bigger number = 83 x 3 = 249
We will add it to 81 and we will get 330
So, 249 + 81 = 330
So the answer is right
Part A:
Draw arrows on the graph below for RISE and RUN. *Remember to start at the left point.*
Part B: Find the slope of the line from the graph above. *Don't forget to simplify!*
Answer:
Option D
Step-by-step explanation:
A). From the graph attached,
Arrow AB represents the RISE and arrow BC represents the RUN.
B). RUN from point A to B (Horizontal distance) = 2 units
Rise from point A to B (Vertical distance) = -4 [Since, downwards arrow represents negative notation]
Slope of the line segment AB = [tex]\frac{\text{Rise}}{\text{Run}}[/tex]
= [tex]\frac{-4}{2}[/tex]
= -2
Therefore, slope of the line = slope of the line segment AB = -2
Option D will be the correct option.
Mary pays $72 for sand. If the cost per pound is $0.45, how many pounds did she purchase?
Answer:
Mary purchased 160 pounds of sand
Step-by-step explanation:
$72÷$0.45=160
Make this brainiest if you felt this helped you the most have an awesome day or night!
Write 0.4% as a fraction or mixed number in simplest form.
Answer:
1/250
Step-by-step explanation:
0.4% = 0.004 = [tex]\frac{4}{1000}[/tex]
divide numerator and denominator of [tex]\frac{4}{1000}[/tex] by 4 to get [tex]\frac{1}{250}[/tex]
a company can buy packages of 500 sheets of paper for $4. At this rate, how much paper can bet bought for $2000
Answer:
2000/4×500=250000sheets
Step-by-step explanation:
The perimeters of the triangles shown are equal. Find the side lengths of each triangle.
Answer:
type the variable of that segment into the boxes correspondingly
Step-by-step explanation:
I WILL GIVE YOU BRAINLY PLSS
If you multiply both sides of an inequality by a negative number, when should you
reverse the inequality symbol?
A. sometimes
B. always
C. never
D. depends on if the number is a fraction or not
PLSS SHOW YOUR WORK PLSS
Answer:
b
Step-by-step explanation:
if you say 1<2 and multiply both by negative 3 you will have -3 > -6
Answer:
Step-by-step explanation:
When you multiply both sides by a negative value you make the side that is greater have a "bigger" negative number, which actually means it is now less than the other side! This is why you must flip the sign whenever you multiply by a negative number. You can also consider this with a number line.
I hope this helps!
Sheila rolled a number cube numbered 1 through 6 and tossed a coin for heads, H, or tails, T. Which list represents all the possible outcomes of rolling the number cube and tossing the coin ?
A) 1H, 2T, 3H, 4T, 5H, 6T
B) 12, 34, 56, HT
C) 12, 13, 14, 15, 16, 23, 24, 25, 26, 35, 36, 45, 46, 56, HT
D) 1H, 2H, 3H, 4H, 5H, 6H, 1T, 2T, 3T, 4T, 5T, 6T
Ill give you Brainliest , :)
Answer:
A
Step-by-step explanation:
its the most logical one to me
Answer:
A
Step-by-step explanation:
1. When the point is reflected over x-axis, what will
the new coordinates of the new point be?
Answer:
(x , y) ----> (-x , y)
Step-by-step explanation:
(x , y) ----> (-x , y)
Example for 1. :
(-4,2) ---> (4,2)
how much longer is a 1 -inch button than a 3/8 -inch button
Answer:
5/8
Step-by-step explanation:
i took the quiz
-4 + 2m=6 I cant figure this out can someone help me ?
Answer:
m = 5
Step-by-step explanation:
2x5 is 10
-4 + 10 = 6
Answer:
Isolate the variable by dividing each side by factors that don't contain the variable.
m=5
Step-by-step explanation:
Ronald McDonald kills 10 kids on Monday and he poised 4 dogs on Tuesday and on Wednesday he drowns 12 babys and on Thursday he bombs 3 Russian homes we don't know how many he killed on Friday but in total he has killed 500 victims and on Saturday and Sunday he took a break, how many kids did Ronald McDonald kill on friday?
Answer: my boi killed 471 people on a friday
Step-by-step explanation:
Which expressions have a value of 49 when w = 4? Choose the correct answers and show your work.
A) 3w2+ 25
B) 7(w2- 9)
C) w3/8+ 41
Answer:
Step-by-step explanation:
Simplify the expression.
Answer:
-2.5
Step-by-step explanation:
-0.25x-6-5.5x-8.4=0
-5.75x-14.4=0
-5.75x=14.4
x= -2.5
Help please!!! ASAP!!! Currently failing!! ✌️
Answer:
1. x = 21°
2. x = 30°
3. x = 7°
5 x = 3
Step-by-step explanation:
Solving for x
1. 15+ 5x + 60° = 180°
75 + 5x = 180°
5x = 180 - 75
5x = 105
x = 105/5
x = 21°
2. These angle are vertical angles
Hence:
13x - 5 = 125°
13x = 125° + 5
13x = 130
x = 130/3
x = 30°
3. 8x - 1 = 55°
8x = 55 + 1
8x = 56
x = 56/8
x = 7°
5. These angles are angles in a straight line
17x - 1 + 130° = 180°
17x + 129° = 180°
17x = 180° - 129°
17x = 51
x = 51/17
x = 3°
Simplify
Topic : Indices
Answer:
[tex] {m}^{2} [/tex]
Step-by-step explanation:
[tex] \frac{ \sqrt{ {m}^{3} } \times {m}^{ \frac{2}{3} } }{ {m}^{ \frac{1}{6} } } \\ \\ = \frac{ { {m}^{ \frac{3}{2} } } \times {m}^{ \frac{2}{3} } }{ {m}^{ \frac{1}{6} } } \\ \\ = \frac{ {m}^{ \frac{3}{2} + \frac{2}{3} } }{ {m}^{ \frac{1}{6} } } \\ \\ = \frac{ {m}^{ \frac{3}{2} + \frac{2}{3} } }{ {m}^{ \frac{1}{6} } } \\ \\ = \frac{ {m}^{ \frac{9 + 4}{2 \times 3} }}{ {m}^{ \frac{1}{6} } } \\ \\ = \frac{ {m}^{ \frac{13}{6} }}{ {m}^{ \frac{1}{6} } } \\ \\ = {m}^{ \frac{13}{6} - \frac{1}{6} } \\ \\ = {m}^{ \frac{12}{6} } \\ \\ = {m}^{2} [/tex]
Help me plz!
9ubiesnfhduryinwiwybv
Answer:
-8
Step-by-step explanation:
10 -2b^2
Let b=-3
10 - 2( -3)^2
Do the exponent first
10 -2(9)
Multiply
10 -18
Subtract
-8
Answer:
- 8
Step-by-step explanation:
Given
10 - 2b² ← substitute b = - 3 into the expression
= 10 - 2(- 3)²
= 10 - 2(9)
= 10 - 18
= - 8
How is solving inequalities with multiplication and division similar to solving equations with multiplication and division?
Answer:
The process is the same. They just have different symbols.
Step-by-step explanation:
CLEAR HIGHLIGHTING
COLOR THEME
ZOO
6. Ricky rolls a fair six-sided number cube, numbered 1 through 6, if he rolls the
dice 18 times. How many times should Ricky expect to roll an even number
What is the correct equation to solve for x ?
x=15.96
x=17.6
x=11.81
x=12.23