Answer:
2x(7x - 3)(7x +3)
Step-by-step explanation:
Find common factors between the 2 numbers:
98x^3 - 18x
2x(49x^2 - 9)
now find what numbers multiplied together is 49, and find what numbers added together equals 0 and the product is 3, 7 times 7 is 49 and 3(-3) = 9 while 3 - 3 = 0 so:
2x(7x - 3)(7x +3)
Tomas got 3/4 of the questions correct on an exam. There were 24 questions on the exam. What number of questions did Tomas get correct?
Answer:
18 questions
Step-by-step explanation:
In order to get the answer you have to multiply 3/4 by 24.
(3/4)(24) = 18
Therefore, Tomas got 18 questions correct.
I hope this helps!!
- Kay :)
What's the inverse of -3? answer asap!!
Answer:
3
Step-by-step explanation:
3
The answer is 3 because it is the opposite of negative 3
consider a difference of 20% between two values of a standard deviation to be significant. how does this computed value compare with the given standard deviation, ?
According to the given statement:
The computed value is significantly less than the given value.
The correct option is B.
What is standard deviation?The standard deviation serves as an indicator of how much a set of values can vary or be dispersed. The values are typically close to the set's mean when the standard deviation is low, while the values are dispersed over a wider range when the standard deviation is high.
According to the given information:The computed value, 14.5
The standard deviation, 11.1
finding the difference :
Percentage = (14.5 - 11.1)/11.1 * 100 = 30.6%
the value is greater than 20%. ,
so,
In comparison to the given value, the computed value is significantly lower.
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I understand that the question you are looking for is:
Consider a difference of 20% between two values of a standard deviation to be significant. How does the computed value, 14.5, compare with the given standard deviation, 11.1?
A) The computed value is significantly greater than the given value
B) The computed value is significantly less than the given value
C) The computed value is not significantly different from the given value
please help will mark brsinliest
Answer:
I am positive the answer is A
Step-by-step explanation:
Since it needs 12.50 per hour and h is per hour it would be 12.50h + S which is what A says
If i have an A+ ( 100%) in a class, and got a D- ( 60-69%) on a quiz what will my grade now be?
Answer:
It would drop the grade down to about a B- or C+
Step-by-step explanation:
Shirabi spent $208 on a sewing machine to make purses. She spends a total of $10 on thread, fabric, and accessories for each purse and plans to charge $36 for each purse. The equation represents her break-even point, when x represents the number of purses sold.
208 + 10x = 36x
How many purses must she sell in order to break even?
Answer:
8
Step-by-step explanation:
You want to isolate x so that you can solve for it based on the value you have.
This gives you 26x=208. 208/26 equals 8
Answer:
D) 8
Step-by-step explanation:
edge2020
7.) The base of a ten-foot ladder stands six feet from a
house. How many feet up the side of the house does the
ladder reach?
10 ft
waaaaaaa
6 ft
Answer:
11.7 ft (11.661903789691 )
Step-by-step explanation:
Draw a right triangle. Legs are 10 ft and 6 ft, we're trying to find the hypotenuse.
We can use the Pythagorean theorem.
a^2 + b^2 = c^2
c = √a2 + √b2
= √(10)2 + √(6)2
= √100 + √36
= √136
= 11.661903789691
Whats the answer please explain your answer giving brainliest:D..
Answer:
It is the first one
Step-by-step explanation:
Pls be right will give brainliest :3
The height of a cylinder can is 4 7/16 inches the radius is 3 inches which measurement is closet to the total surface area of the can in square inches
Answer:111.919 square inches
Step-by-step explanation:
In triangle ABC, the measure of angle B is 18° more than twice the measure of angle A. The measure of angle C is 42° more than that of angle A. Find the angle measures. A: 30°, 78°, 42° B: 30°, 78°, 72° C: 33°, 84°, 63° D: 26°, 70°, 84°
Answer:
B: 30°, 78°, 72
Step-by-step explanation:
Given a [tex]\triangle ABC[/tex].
Let [tex]\angle A = x^\circ[/tex]
As per question statement, [tex]\angle B[/tex] is 18° more than twice of [tex]\angle A[/tex].
i.e
[tex]\angle B =(2x+18)^\circ[/tex]
[tex]\angle C[/tex] is 42° more than that of [tex]\angle A[/tex]
[tex]\angle C = (x+42)^\circ[/tex]
To find:
The angle measures of the triangle = ?
Solution:
We can use the angle sum property of a triangle here to find the three angles of the triangle.
As per angle sum property, the sum of all the three internal angles is equal to [tex]180^\circ[/tex].
[tex]\angle A + \angle B + \angle C= 180^\circ\\\Rightarrow x+2x+18+x+42=180^\circ\\\Rightarrow 4x+60=180\\\Rightarrow 4x=120\\\Rightarrow x= 30^\circ[/tex]
i.e. [tex]\angle A = 30^\circ[/tex]
[tex]\angle B = 2\times 30 + 18 = 78^\circ[/tex]
[tex]\angle C = 30+42 = 72^\circ[/tex]
Therefore, the correct answer is:
B: 30°, 78°, 72
Michael sketches several designs for a math club pin. The math club voted for the pin shape to be a right triangle. Which of the following dimensions could NOT be used for the math club pin?
Answer:
The answer is c
Step-by-step explanation:im doing math exam and got it right simple ;)
Please help me! Thank you!
Answer:
he got 210 dollars in interest
Step-by-step explanation:
Pls help me ill give brainliest
Do all 3 for brainliest
Answer:
13. Slope: -3
14. D ; y = 18
15. ?
Step-by-step explanation:
13. 4 - 1 = 3
-3 - 6 = -9
3/-9 = -3
A dog weighs 0.5 pound when.it is born.
lt gains weight as it grows, and is 35 pounds at age 1 year.
Then the dog stays the same weight for the rest of its life.
It lives to be 15 years old.
What is the domain of the function representing the weight, in pounds, of the dog in terms of its age in
O0 to 1 year
O0to 15 years
O0to 35 pounds
O 0.5 to 35 pounds
Answer: 0.5 to 35
Step-by-step explanation:
What is the slope of a line perpendicular to the line whose equation is 12x+2y=-1212x+2y=−12. Fully reduce your answer.
Answer:
In this case the slope of a line perpendicular to the line whose equation is 12x+2y=-12 will be [tex]\frac{1}{6}[/tex]
Step-by-step explanation:
A line has the form:
y = m * x + b
where:
m is the slope of the line. b is Y-intercept. This is the value of y where the line crosses the y-axis.In this case, the line has the form 12*x+2*y=-12
First, you must isolate the variable "y", in order to arrive at the form of the line detailed above:
12*x+2*y=-12
2*y= -12 -12*x
y= (-12 -12*x)÷2
y= (-12)÷2 -(12÷2)*x
y= -6 -6*x
In this case: the slope is -6 and the Y-intercept is -6.
Two lines are perpendicular when they form four equal 90º angles. For two lines to be perpendicular, they must have their slopes inverse and changed sign.
Then, in this case the slope of a line perpendicular to the line whose equation is 12x+2y=-12 will be [tex]\frac{1}{6}[/tex]
-13=r/9+8
I suck at maths so if anyone could help with this problem it will help thank you!
Answer:
r = -189
Step-by-step explanation:
Let's make it easy,
-13=r/9+8
r/9 = -13-8
r/9 = -21
r = -21 × 9
r = -189
subtract: 3a ( a+ b+ c) - 2b (a- b+ c) from 4c (-a + b + c)
Answer:
4c^2 - 3a^2 -7ac +6bc -ab
Step-by-step explanation:
solve first 3a( a + b + c) - 2b ( a+ b +c)
which is = 3a^2 + 3ab + 3ac - 2ab - 2b^2 -2bc
there for 4c(-a + b +c) -( 3a^2 + 3ab + 3ac - 2ab - 2b^2 - 2bc)
= -4ac-3ac +4bc+2bc -3ab+2ab + 4c^2 -3a^2
=4c^2 - 3a^2 -7ac +6bc -ab
PLZ HELP I AM TIMED!!!!! FIRST PERSON GETS BRANLIEST!!!!!!!
Parallel lines s and t are cut by a transversal r.
Which angles are corresponding angles?
Angle3 and Angle7
Angle1 and Angle7
Angle4 and Angle6
Angle1 and Angle8
Answer:
[tex]angle \: 3 \: and \: angle \: 7[/tex]
Step-by-step explanation:
[tex]pls \: mark \: as \: brainliest[/tex]
[tex]hope \: helps[/tex]
Answer:
answer is A
Step-by-step explanation:
Maths Homework - 10A1 - Due 02/12
Return to Assigned Work
Overview
2
8
10
11 12
Question Progress
314 Marks
Homework Progress
31142 Marks
وأسأل
a) Complete the table of values for y = 3x - 1
c)
Х
-2
0
1
1
2
3
6
4
Submit Answer
y
-7
-4
-1
2
5
8
b) Draw the graph of y = 3x - 1
on the grid.
NP
NO
c) Use the graph to estimate the
value of y when x = 2.5
+
Answer:
The answer is below
Step-by-step explanation:
a) To complete the table of values for y = 3x - 1, we substitute the value of x into the equation and find y.
For x = -2, y = 3(-2) - 1 = -7; For x = -1, y = 3(-1) - 1 = -4
For x = 0, y = 3(0) - 1 = -1; For x = 1, y = 3(1) - 1 = 2
For x = 2, y = 3(2) - 1 = 5; For x = 3, y = 3(3) - 1 = 8
x: -2 -1 0 1 2 3
y: -7 -4 -1 2 5 8
b) The graph is drawn using geogebra online graphing calculator.
c) From the graph, When x = 2.5, y = 6.5
What is the fewest number of points you must plot in order to have examples of all four sets of numbers, including at least one positive and one negative integer? Explain.
To which sets do positive integers belong? Select all that apply.
The fewest number of points that must be plotted to have examples of all four sets of numbers is including at least one positive and one negative integer is 2 points
The Numbers are generally classified into 2 main groups - Rational numbers and Irrational numbers.
All the four examples listed here are types of rational numbers only.
Now, positive integers are also called as whole numbers and natural numbers. So, one point is enough to represent whole numbers and natural numbers.
Also, another point will be required to show integers because integers can be positive and negative and could include fractions.
Hence, The fewest number of points we must plot to have examples of all four sets of numbers given are 2 points.
As we know that positive integers are types of rational numbers and positive integers are also natural numbers and whole numbers. Therefore all the options given, are positive integers.
The correct question is What is the fewest number of points you must plot in order to have examples of all four sets of numbers, including at least one positive and one negative integer? Explain.
To which sets do positive integers belong?
1. Integers
2.Rational Numbers
3.Natural Numbers
4. Whole numbers
Select all that apply.
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The perimeter of the rectangle below is 54 units. What is the value of x?
Answer:
x has a value of 14.
Step-by-step explanation:
In addition to the information provided in the question, we are also told that the rectangle has a length x+1 and a width x-4. This is all we need to know.
To work this out, we simply need to plug those numbers into the equation for the perimeter of a rectangle. That would be p = 2l + 2w, where p is perimeter, l is length, and w is width.
We know that the resulting area (p) is equal to 54 units. We are also given variable values for the length and width. With that we can simply plug them into that equation and solve it for x:
[tex]p = 2l + 2w[/tex]
[tex]54 = 2(x + 1) + 2(x - 4)[/tex]
[tex]54 = 2x + 2 + 2x - 4[/tex]
[tex]54 = 4x - 2[/tex]
[tex]56 = 4x[/tex]
[tex]x = 56 / 4[/tex]
[tex]x = 14[/tex]
someone help please
Answer:
The slope of the line segment CD = 9
Hence, option 'D' is true.
Step-by-step explanation:
Given that the slope of line segment = 9
We know that two triangles would be similar if their corresponding angles are congruent and the corresponding sides are in proportion.Given that the line segments AB and CD are both parts of the same non-vertical line. It means their slopes must be the same.
Thus, the slope of the line segment CD = 9
Hence, option 'D' is true.
A system of equations is graphed below. What is the solution to the system? Explain how you know
GIVING BRAINIEST
Answer:
(3,4)
Step-by-step explanation:
Find equations of both lines
Line 1: y = 1/3x + 3
Line 2: y = 2x - 2
Set then equal to each other, then solve for x:
1/3x + 3 = 2x - 2
1/3x + 5 = 2x
x + 15 = 6x
15 = 5x
x = 3
Then sub x into one of the equations (doesn't matter which one) and solve for y
y = 2x - 2
y = 2(3) - 2
y = 6 - 2
y = 4
Solution is (3,4)
OR EVEN BETTER!! JUST LOOK AT THE GRAPH AND SEE WHERE THE TOUCH AND LOOK AT THE NUMBERS!! YAY, YOU DID IT!!
Answer:
(3,4)
just put 3,4 is the equation
Water bottles are sold in cases of 24. Select the expressions that can represent the total number of water bottles in c cases
Answer:
Step-by-step explanation:
24 X c,
24 ÷ c,
24 + c,
24 - c,
24c
Question 9 of 10
Which vector is the sum of vectors ä and ?
Б
Answer:
its c
Step-by-step explanation:
Find the time it will take to drain a 2000 mL IV bag if 131 mL drained in 7 minutes. Round to the nearest minute.
The time it will take for 2000 mL to drain is 107 minutes.
How to find the time the liquid will drain?The time it took to drain 131 mL is 7 minutes.
We have to find the time it took to drain 2000 mL.
131 millilitres drained in 7 minutes.
This means for every 7 minutes, 131 millilitres of liquid drains out.
Therefore, the time it will take for 2000 millimetres of liquid to drain can be calculated as follows:
131 mL = 7 minutes
2000 mL = ?
cross multiply
time for 2000 mL to drain = 2000 × 7 / 131
time for 2000 mL to drain = 14000 / 131
time for 2000 mL to drain = 106.870229008
time for 2000 mL to drain = 107 minutes
We have to round to the nearest minutes.
Therefore, the time it will take for 2000 mL to drain is 107 minutes.
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Which of the following does not represent a function?
Answer:
D,
Step-by-step explanation:
D would be the only one that doesn't represent a function because the y-value never changes while the x-value does.
Can someone help me please
(PLEASE ANSWER QUICK!) solve this problem
Answer: 30
Step-by-step explanation: PEMDAS
Answer:
30
Step-by-step explanation:
pemdas:
10 / (3+2) * 4 + 5^2 + 6 - 9
= (10 / 5)*4 + (25) - 3
= 8 + 22
= 30