Answer:
decimal is the number system of 10base .
Evaluate each expression for a=3 and b=-5 . b(2 b-a)
Evaluating the expression b(2b - a) for a = 3 and b = -5 is equal to 65.
An algebraic expression is a number, variable, or the combination of both and operational symbols. On the other hand, an equation is the equality of two expressions separated by "=".
To evaluate an expression or an equation means to substitute a value to the variable and perform the arithmetic operations included.
Given the expression b(2b - a), substitute the value of the variable a and the value of variable b.
b(2b - a)
-5[2(-5) - (3)]
Performing the arithmetic operations, we can have the value of the expression.
-5[2(-5) - (3)]
= -5(-10 - 3)
= -5(-13)
= 65
Hence, the expression b(2b - a) when a = 3 and b = -5 is equal to 65.
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What are the intercepts of y=4x-2
Answer:
x intercept (0.5,0) & y intercept (0,-2)
Step-by-step explanation:
help asap please this is timed please make sure your answer is correct
The expression that best represent the given statement is mn + p. The correct option is B. mn + p
Writing an expressionFrom the question, we are to determine the expression that represents the given statement
The given statement is
"the product of quantities m and n increased by p"
The product of m and n can be written as,
m × n = mn
Increased by p means, p was added to the expression.
Thus,
The statement, the product of quantities m and n becomes
mn + p
Hence, the expression that best represent the given statement is mn + p. The correct option is B. mn + p
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State whether the sentence is true or false. If false, replace the underlined word or number to make a true sentence.
The distance from point X to line q is the length of the segment perpendicular to line q from X .
The statement " The distance from point X to line q is the length of the segment perpendicular to line q from X" is true
Given,
The statement "The distance from point X to line q is the length of the segment perpendicular to line q from X "
From the figure we can say that the distance from point X to line q is the length of the segment perpendicular to line q from X.
So the given statement is true
Hence, the statement " The distance from point X to line q is the length of the segment perpendicular to line q from X" is true
The complete question is:
State whether the sentence is true or false. If false, replace the underlined word or number to make a true sentence.
The distance from point X to line q is the length of the segment perpendicular to line q from X .
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EASY POINTS WILL GIVE BRAINLIST TO BEST ANSWER
see image!
10 miles in 30 minutes would mean Julia was riding at 20mph.
5 miles in 12 minutes would mean Alex was riding at 25mph which means Alex would've had the greater average speed.
miles per hour is a good measure for this scenario because a hour is 60 minutes and the numbers 12 and 30 go into 60 cleanly.
12*5=60
30*2=60
60 minutes=1 hour
2/3 + r =-4/9
What’s the value of r
Answer:
-10/9
Step-by-step explanation:
I made it so that 2/3 a -4/9 had the same denominator which turned 2/3 into 6/9
then I solved normally
Select the reason that best supports Statement 5 in the given proof.
A={x|x is an even number more than 0 but less than 5}
MARKS BEST TO WHOEVER ANSWERS FIRST!!!!!!!!!!!!!!!!!!
The sequence of the angles from least to biggest is ∠WXY < ∠YXZ < ∠WYX < ∠XZY < ∠XYZ.
What is the triangle?A triangular is a geometry with 3 sides and three angles. The triangle has angles that sum up to 180 °.
In a triangle, if the angle is small then the opposite side will be short, and if the angle increases then the side also increases.
The sides of the triangle are in ascending order, then we have
WY < YZ < WX < XY < XZ
Then the sequence of the angles is given as,
∠WXY < ∠YXZ < ∠WYX < ∠XZY < ∠XYZ
The sequence of the angles from least to biggest is ∠WXY < ∠YXZ < ∠WYX < ∠XZY < ∠XYZ.
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A football team needs to sell at least 20,000 tickets to two games to cover expenses. They sell 10,184 tickets to one game and 9,723 tickets to the other. Estimate by rounding to the nearest thousand and by rounding to the nearest hundred. Did the team sell enough tickets?
can sb pls help miiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
Answer: help is to make it easier for (someone) to do something by offering one's services or resources.
"they helped her with domestic chores"
Step-by-step explanation: hope this helps
Draw the two planes determined by the following equations:
2x+3y-z=12
2x-4y+z=8
Both the planes of the given equations,
2x+3y-z=12 (1)
2x-4y+z=8 (2)
They have been drawn in a three-dimensional plane, and the images are attached below.
find the values of x and y
Answer:
D
Step-by-step explanation:
Similar question to the one on your quiz
EXTENDED RESPONSE Triangle A B C has vertices A(-3,-5), B(-1,-1) , and C(-1,-5) ,
Triangle X Y Z has vertices X(5,-5), Y(3,-1) , and Z(3,-5) ,
c. Write a logical argument using coordinate geometry to support your conjecture.
The corresponding sides have the same measure and are congruent. So, ΔABC ≅ ΔXYZ by SSS.
What in mathematics is the Pythagoras Theorem?
According to the Pythagoras theorem, the square of the hypotenuse of a right-angled triangle equals the sum of the squares of the other two sides. The formula for this theorem is c2 = a2 + b2, where c is the hypotenuse and a and b are the triangle's two legs.Observe the graph, the triangles are right triangles. In triangle ABC, AC = 2 and BC = 4. Use the Pythagorean
Theorem to find AB.
AB² = AC² + BC²
AB = √ AC² + BC²
AB = √ 2² + 4²
AB = √4 + 16
AB = √20
Similarly In triangle XYZ, ZX = 2 and ZY = 4. Use the Pythagorean Theorem to find XY
XY² = XZ² + ZY²
XY = √ XZ² + ZY²
XY = √ 2² + 4²
XY = √4 + 16
XY = √20
The corresponding sides have the same measure and are congruent. So, ΔABC ≅ ΔXYZ by SSS.
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Help please what would the answer beeee.
Answer:
1
Step-by-step explanation:
Answer:1
Step-by-step explanation:
Sep 22, 7:30:49 PM
Watch help video
Express the interval using inequality notation.
[5,♾)
According to the question, the given inequality interval expression can be represented is as follows:
In the expression of interval that is [5,♾). The left hand side contain square brackets and the right side bracket contains infinity.
Therefore, the interval contains the numbers which tells the starting point and the endpoint. In this, the interval starts from the point 5 and it takes infinite values on the line graph.
What is interval?
Interval contains all the numbers between the two given number in the intervals. The two numbers represent the starting coordinate point and the endpoint. There are different ways to show intervals. Some of the ways are inequality, number line, etc.
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Alisa has 10 yellow cars, 7 green cars, 5 red cars, 9 purple cars, 11 blue cars, 26 brown cars, and 44 black cars. How much cars does Alisa have?
Answer:
107 cars
Step-by-step explanation:
Answer:
107 cars
Step-by-step explanation:
10+7+5+9+11+26+44=107
A football field is about 100 m long.
One of the players can run the full
distance in 25 seconds. How fast was
the player running?
Answer:
The player is running about 4 yards a second
Step-by-step explanation:
Answer:
2.5m a second
Step-by-step explanation:
Tell whether each equation is in slope-intercept, point-slope, or standard form.
d. y-3=4 x
y-3=4 x is in point-slope form, it is neither in slope-intercept form nor standard form.
What is a slope of line?A line's steepness and direction are determined by the slope of the line. Without actually using a compass, determining a line's slope in a coordinate plane allows one to anticipate whether a line is parallel, perpendicular, or not.
The change in a line's y coordinate relative to its change in x coordinate is referred to as the line's slope. Δy is the net change in the y coordinate, while Δx is the net change in the x coordinate.
Therefore,
m = y₂-y₁/x₂-x₁ (where m denotes the slope) can be used to express how the y coordinate changes in relation to the x coordinate.
Be aware that tan ∅ = y/x
We also refer to this tan as the line's slope
We know that point-slope form = y₂ - y₁ = m(x₂ - x₁)
the equation looks like this in point-slope form ⇒ y-2= 4(x-0)
Here, the points are (x, y) and the points the line is passing through is
(0, 2)
y-2= 4(x-0) is in point-slope form, it is neither in slope-intercept form nor standard form.
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The gravitational attraction between two bodies varies inversely as the square of the distance between them: If the force of attraction is 64 pounds when the distance between the bodies is 9 feet, what is the distance between them when the force is 36 pounds?
The distance between them when the force is 36 pounds is 5.06 feet.
According to the statement
We have to find that the distance between two bodies.
So, For this purpose, we know that the
A force is a push or pull upon an object resulting from the object's interaction with another object.
From the given information:
If the force of attraction is 64 pounds when the distance between the bodies is 9 feet
Then
F1 =64 pounds, r1 = 9 ft
F2 = 36 , r2 = ?
The gravitational force of attraction is inversely proportional to the square of distance between the two bodies.
So, F2 / F1 = r1^2 / r2^2
36 / 64 = 9 / r2
r2 = 0.56*9
r2 = 5.06.
So, The distance between them when the force is 36 pounds is 5.06 feet.
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Answer:
12 ft
Step-by-step explanation:
there is less force so the distance is greater
Which expressions are equivalent to -6(b+2)+8−6(b+2)+8minus, 6, left parenthesis, b, plus, 2, right parenthesis, plus, 8 ?
The equivalent expression of -6(b + 2) + 8 is -6b - 4
How to determine the equivalent expression?The expression is given as
-6(b + 2) + 8
Expand
-6b - 12 + 8
Evaluate the like terms
-6b - 4
Hence, the equivalent expression of -6(b + 2) + 8 is -6b - 4
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Solve each system by substitution.
5m - n = 7 , 3 + 3n = 6m
Using substitution method, the solution of the given system of equations is (2,3)
A system of equation can be solved using:
graphical methodsubstitution methodelimination methodThe given system of equations:
5m - n = 7 ............ (1)
3 + 3n = 6m .............. (2)
In equation (1), subtract 5m from both sides:
5m - n - 5m = 7 - 5m
-n = 7 - 5m
Multiply by (-1)
n = 5m - 7 ...... (3)
Substitute n = 5m - 7 into equation (2)
3 + 3n = 6m
3 + 3(5m - 7) = 6m
15m -18 = 6m
9m = 18
m = 2
Substitute back m = 2 into equation (3)
n = 5m - 7
n = 5.(2) - 7 = 3
Hence, the solution is (2, 3)
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Please help 8 through 10
Dominic is working two summer jobs, making $10 per hour babysitting and making $6 per hour walking dogs. In a given week, he can work no more than 16 total hours and must earn at least $120. If x represents the number of hours babysitting and y represents the number of hours walking dogs, write and solve a system of inequalities graphically and determine one possible solution.
The system of inequalities for this problem is given by:
x + y ≤ 16.10x + 6y ≥ 120.The graphical solution is given at the end of the answer, and one possible solution is 12 hours babysitting and 3 hours walking the dog.
What is a system of inequalities?A system of equations is when two or more variables are related, and inequalities are built to find the values of each variable.
For this problem, the variables are given as follows:
Variable x: number of hours babysitting.Variably y: number of hours walking dogs.He can work no more than 16 total hours, hence:
x + y ≤ 16.
He must earn at least $120, hence, considering the earnings with each activity:
10x + 6y ≥ 120.
These two inequalities compose the system. The graphical solution is composed by points that:
Are to the left of line y = 16 - x.Are to the right of line -1.67x + 20.Above y = 0, as there are no negative times.The graphical solution is given by the region shaded in blue at the end of the answer.
One possible solution inside the region is:
(12,3).
Meaning that he can work 12 hours babysitting and 3 hours walking the dog.
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Please help me thanks
Answer:
a). 14 hours a week
b). 10.5 hours a week
Step-by-step explanation:
His time = 42 hours a week
Quarter of his time = one fourth of his time.
Third of his time = one third of his time
So, for dealing with complaints:
42h * 1/3 = 42h / 3 = 14h
On the phone:
42h * 1/4 = 42h / 4 = 10.5h
Answer:
a) 14 hours
b) 10.5 hours
Step-by-step explanation:
42 hours = 1 week
a) 1/3 hours a week dealing with complaints
[tex]\frac{1}{3} *\frac{42}{1} = \frac{42}{3} = 14[/tex]
He spends 14 hours a week dealing with complaints.
b) 1/4 hours a week on the phone
[tex]\frac{1}{4} * \frac{42}{1} = \frac{42}{4} = \frac{21}{2} = 10.5[/tex]
He spends 10.5 hours a week on the phone.
Find the percent of the given number. 65 % of 360
A percentage in mathematics is a number or ratio that can be expressed as a fraction of 100.
The percent of the given number 65 % of 360 is 234.
What is meant by percentage?A percentage in mathematics is a number or ratio that can be expressed as a fraction of 100. The term percent comes from the Latin "per centum" which means per hundred. The symbol percentage is used to represent percentage.
Let the equation be 65 % of 360
Percentage = (value/total value) × 100 %.
Since, finding the fraction of a number is same as multiplying the fraction with the number, we have
65 % of 360 = 65/100 of 360
65/100 × 360 = 234
Therefore, the percent of the given number 65 % of 360 is 234.
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!!! HELP QUICKLY PLEASE !!! !!! 100 POINTS TOTAL !!!
On Marshal’s 5th grade math test, he was asked to evaluate: 25,328.941 ÷ 104. The answer he wrote was 25.328941. Unfortunately for Marshal, his teacher marked this answer as incorrect. Explain the mistake Marshal made. What is the correct solution to 25,328.941 ÷ 104?
The mistakes Marshal made. He forget to divide the number last time by 10
25,328.941 ÷ 10^4
The division is the inverse of multiplication. When you divide a number by 10, each digit moves one place to the right to make it 10 times smaller.
=25,328.941 /10*10*10*10
= 25,32.8941 /10*10*10
= 25,3.28941 /10*10
= 25.28941 /10
= 2.528941
25,328.941 ÷ 104. The answer he wrote was 25.328941 written by a teacher
He forget to divide the number last time by 10
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whos good at algebra bc...
[tex]\displaystyle\\Answer:\ y=-\frac{1}{3} x+5[/tex]
Step-by-step explanation:
Choose two points that belong to this graph: (0,5) (3,4)
Formula for a straight line:
[tex]\displaystyle\\\boxed{\frac{x-x_1}{x_2-x_1}=\frac{y-y_1}{y_2-y_1} }[/tex]
[tex]\displaystyle\\x_1=0\ \ \ \ \ x_2=3\ \ \ \ \ y_1=5\ \ \ \ \ y_2=4\\\frac{x-0}{3-0} =\frac{y-5}{4-5} \\\\\frac{x}{3}=\frac{y-5}{-1}[/tex]
Multiply both parts of the equation by -1:
[tex]\displaystyle\\-\frac{x}{3}=y-5\\\\ -\frac{x}{3} +5=y-5+5\\\\-\frac{x}{3}+5=y\\\\y=-\frac{1}{3}x+5[/tex]
Three angles fit around a .2 of the angles are 115° and 53° work out the size of the third angle which of the word below describes the third angle right angle obtuse angle reflex angle or acute angle
Three angles fit around a point, two of the angles are 115° and 53° , then the size of third angle would be 192° and it would be a reflex angle.
The sum of the angles around a point is 360 °
If the two angles are 115° and 53° , the sum of the two angles would be 168°
If we reduce the sum of the two angles from the total 360° , we get the size of third angle as 192°
As the size of third angle is more than 180° , so the name of the third angle is reflex angle because right angle is measured 90° , obtuse angle is measured more than 90° but less than 180° , reflex angle is measured more than 180° but less than 360° and acute angle is measured less than 90 °
Correct question is - Three angles fit around a point. Two of the angles are 115° and 53° . Work out the size of third angle and which of the words below describe the third angle
• Right angle
• Obtuse angle
• Reflex angle
• Acute angle
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Solve this pls (pls)
Answer:
21-3= 18 18 +18=36 36/6 =6
Step-by-step explanation:
correct 36/6=6
Answer:
This problem is not solvable. So, the correct answer is 21 – 3 + 18 ÷ 6 = 6
Step-by-step explanation:
21 – 3 + 18 ÷ 6 = 6
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Find the equation of the axis of symmetry of the following parabola algebraically.
y=2x^2-24x+86y
The equation of the axis of symmetry is x = 6
How to find the equation of the axis of symmetry?The equation of the parabola is given as:
y = 2x^2 - 24x + 86
Differentiate the equation of the parabola
So, we have
y' = 4x - 24
Set the differentiated equation of the parabola to 0
So, we have
4x - 24 = 0
Add 24 to both sides of the differentiated equation of the parabola
4x = 24
Divide both sides of the differentiated equation of the parabola by 4
x = 6
This represents the the axis of symmetry
Hence, the equation of the axis of symmetry is x = 6
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