The measure of the angles 2 and 3 are 70°
What is an angle?
An angle is a figure in Euclidean geometry created by two rays, called the sides of the angle, that share a common termination, called the vertex of the angle. Angles created by two rays are located in the plane containing the rays. Angles also were generated when plane cross. These are known as dihedral angles. An angle defined by two intersecting curves is the angle of the rays lying tangent to the respective curves at their point of junction. Angle can also refer to the measurement of an angle or of a rotation. In the case of a geometric angle, the arc is defined by the sides and is centered at the vertex.
Given, angle 1 = 40°
and, angle 2 = angle 3 = x
In a triangle, sum of angles = 180°
or, m∠1 + m∠2 + m∠3 = 180°
or, 2x = 180-40
or, 2x = 140
or, x = 140/2 = 70°
Hence, the measure of the angles 2 and 3 are 70°
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v=u+ at
u= 2 a=-5
Work out the value of v.
Substitution
Tynel
4
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Overview
Revision for 10Y1 October
Answer:
v=-0.5
Step-by-step explanation:
v=2+(-5×0.5)
v=2-2.5
v=-0.5
The slope of line a is 5. The slope of line b is 15 . Which statement is true?
Step-by-step explanation:
I don't see any statements either.
anyway, the only thing that can be said about the 2 lines is that they are crossing each other at one point.
the lines are not parallel, they are not perpendicular (90° to each other), they are not identical.
nothing can be said about a specific point on the line of intercepts with the x- and y-axis.
they are also not parallel and not perpendicular to any of the x- or y-axis.
The two triangles above are similar. a. Find x using the ratio of the sides 12 cm and 16 cm: x/20=12/16. Show your work. b. Find x using the ratio of the sides 6 cm and 8 cm. Show your work. c. Explain why the answer to (a) and (b) should be the same.
a)
If the triangles are similar, the corresponding sides vary on the same proportion, so the ratios between the corresponding sides are equal.
For
[tex]\frac{x}{20}=\frac{12}{16}[/tex]To solve for x you have to multiply both sides of the expression by 20
[tex]\begin{gathered} \frac{20x}{20}=(\frac{12}{16})\cdot20 \\ x=(\frac{3}{4})\cdot20 \\ x=15 \end{gathered}[/tex]b)
Following the same logic, the ratio between x and 20 is the same as the ratio between 6 and 8
[tex]\frac{x}{20}=\frac{6}{8}[/tex]6/8 can be simplifies as 3/4. Then multiply both sides by 20 to determine the value of x.
[tex]\begin{gathered} \frac{x}{20}=\frac{6}{8} \\ 20\cdot\frac{x}{20}=(\frac{3}{4})\cdot20 \\ x=15 \end{gathered}[/tex]As mentioned above, when two triangles are similar, the corresponding sides are always in the same ratio, that is why the results in a and b are the same.
how to do this problem and find the measurements??????
The measure of x is found as 22 for the given vertically opposite angles.
What is meant as vertically opposite angles?When two lines intersect at a point, vertical angles are formed. They are always on equal footing. In other words, four angles are formed so when two lines traverse or intersect. We can see that two opposite angles are equal, and these are referred to as vertical angles. They are also acknowledged as'vertically opposite angles' due to their being perpendicular to each other.For the given question;
5x + 4 = 114 (As both lines intersecting and vertical angles are formed).
Solving the equation;
5x = 114 - 4
5x = 110
x = 22
Thus, the measure of x is found as 22.
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Solve this inequality
-3 < x + 5 < 10
Answer:
-8 < x < 5
Step-by-step explanation:
-3 < x + 5 < 10
=> Minus 5 in all sides
=> -8 < x < 5
a stack of paper measures 0.9 centimeter thick. each piece of paper is 0.01 centimeter thick. how many pieces of paper are in the stack? could each of 25 students get 3 pieces of paper?
Which equation exemplifies the Associative Property of Multiplication?
O4×(2x5)= (2x5)×4
O4x(2x5)=4x(5x2)
O4x(2x5)= (4x2)x5
O4x2x5=5x2x4
19
Step-by-step explanation:
35*44
5555
75*69
*1235
Joanna has a big paper due. yesterday, she started typing her hand-written draft. she typed 862 words of it and saved her work to continue later. if she types at a rate of 70 words per minute, and the paper is 1,562 words long, how much more time does she have to spend typing? a. 10 minutes b. 15 minutes c. 18 minutes
Answer:
10 minutes
Step-by-step explanation:
if 70 words = 1minute
862 words will be 862÷70=12.31 minutes
1,562 words will be 1562÷70=22.31 minutes
time needed to finish will be 22.31-12.31= 10 minutes
So the total time needed to finish will be 10 minutes
Helppp
[tex]7 \sqrt{?} = 55[/tex]
Plsss
[tex] \frac{5}{10} = what[/tex]
Answer:
The first questions unknown equals
[tex] \frac{3025}{49} [/tex]
The second question is unclear. I assume it is to simplify if that is the case the answer will be.
[tex] \frac{1}{2} [/tex]
Step-by-step explanation:
First Question I made ?=x for simplicity.
[tex]7 \sqrt{x} = 55[/tex]
then I divide both sides by 7
[tex] \sqrt{x} = \frac{55}{7} [/tex]
then I square both sides
[tex]x = \frac{3025}{49} [/tex]
Question 2
I simplified by dividing both the denominator and the numerator by their HCF (highest common factor) which is 5
[tex] \frac{5 \div 5}{10 \div 5} [/tex]
which equals
[tex] \frac{1}{2} [/tex]
Answer:
[tex]\textsf{1.} \quad 7\sqrt{\dfrac{3025}{49}}=55[/tex]
[tex]\textsf{2.} \quad \dfrac{5}{10}=\dfrac{1}{2}[/tex]
Step-by-step explanation:
Question 1Let x be the unknown number:
[tex]\implies 7\sqrt{x}=55[/tex]
Divide both sides of the equation by 7:
[tex]\implies \dfrac{7 \sqrt{x}}{7}=\dfrac{55}{7}[/tex]
[tex]\implies \sqrt{x}=\dfrac{55}{7}[/tex]
Square both sides of the equation:
[tex]\implies \left(\sqrt{x}\right)^2=\left(\dfrac{55}{7}\right)^2[/tex]
[tex]\implies x=\dfrac{55^2}{7^2}[/tex]
[tex]\implies x=\dfrac{3025}{49}[/tex]
Question 2Divide the numerator and the denominator by the highest common factor:
[tex]\implies \dfrac{5 \div 5}{10 \div 5}=\dfrac{1}{2}[/tex]
7+4x= -5 helppppppppppppp
On a piece of paper, Graph y = 2x-3. Then determine which answer matches the graph you drew.
A graph of the linear function (y = 2x - 3) which matches the answer is shown in the image attached below.
What is a graph?A graph refers a type of chart that's commonly used for the graphical representation of data on both the horizontal and vertical lines of a cartesian coordinate, which are the x-axis and y-axis.
Generally speaking, the graph of any proportional relationship such as a linear function is characterized by a straight line with the points passing through the origin (0, 0) because as the values on the x-axis decreases or increases, the values on the y-axis decreases or increases simultaneously as shown in the image attached below.
In conclusion, a graph representing the given linear function shows a proportional relationship between the value of x and y.
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simplify (2a)^-1 ×3a^2 URGENT
Answer:
Hope the picture will help you.......
simplify a5/a2. i don’t even know what this is
Answer:
a3 is your simplified answer.
Step-by-step explanation:
a5 divided by a2 is a3/1 which is a3.
Answer:
Step-by-step explanation:
a^3
Jett is 6 feet 2 inches tall.
How tall is he in inches?
Answer:
74 inches
Step-by-step explanation:
6 feet= 72 inches plus 2 inches equals this amazing height
Algebra 2
Functions
Skills Summative
Answer: See explanation
Step-by-step explanation:
For questions 1 - 4, it's asking you to plug in numbers into the original functions.
1. f(-2): You would plug -2 into f(x) = 2x^2 - 3x, getting
2(-2)^2 - 3(-2)
2(4) - (-6)
8 + 6 = 14
f(-2) = 14
2. f(x) - g(x): You're basically just subtracting the two functions
(2x^2 - 3x) - (2 - 5x)
2x^2 - 3x - 2 + 5x
Combine like terms
2x^2 + 2x - 2
3. You're multiplying them so (2x^2 - 3x)(2 - 5x)
4. f(g(x)): It's like f(-2), but instead of -2, you plug in the function of g(x)
So in 2x^2 - 3x, x would equal 2 - 5x:
2(2 - 5x)^2 - 3(2 - 5x)
And then simplify that.
For questions 5 - 6, it's asking for shifting from the parent function. Parent function is always f(x) or g(x) or whatever variable it is.
5. f(x - 8) + 9: The 9 is the y value shift, meaning the parent function is shifted up 9 units. For -8, think of what x needs to be for (x - 8) to be 0. If that number is positive, function shifts right; if negative, shift left. In this case, x needs to be 8 in order for (x - 8) to be 0. Therefore, f(x) is shifted right 8 units.
6. -3f(x) - 2: From the previous question, we now know that -2 means f(x) is shifted down 2 units. When you have 3f(x), you're multiplying the entire function by 3, so it's called a vertical stretch of 3. The negative means it's reflected over the x-axis since the y value is the opposite of what it used to be.
2. Write an equation in slope-intercept form of the line that passes through the point (-5, 7) and is perpendicular to the line y = 5x-1.
The general slope intercept form equation of a line is as stated below;
[tex]y=mx+b[/tex]where m is the slope and b is the intercept.
If we compare the given equation y = 5x-1 with the equation of a line, we can deduce that the slope, m, is 5.
The slope of a line perpendicular to another is always given as -1/m, therefore the line perpendicular to the line y=5x-1 will have a slope of -1/5;
So let's go ahead and substitute m= -1/5, into the point slope equation to determine the line that passes through (-5,7);
Remember, the point slope form equation of a line is given as;
[tex]y-y_1=m(x-x_{1)}[/tex]Substituting the above values, we'll have
[tex]y-7=-\frac{1}{5}(x+5)[/tex]Let's open up the parenthesis first, we'll have;
[tex]\begin{gathered} y-7=-\frac{1}{5}x-\frac{5}{5} \\ y-7=-\frac{1}{5}x-1 \end{gathered}[/tex]Let's isolate y by adding 7 to both sides of the equation;
[tex]y=-\frac{1}{5}x+6[/tex]The above equation is the required equation of the line in slope intercept form which can be compared to the one earlier written above(y = mx + b).
À La Mode Ice Cream Parlor uses the function f(x) to calculate its profits. When the parlor sells x cones, it makes f(x) dollars in profit. What does f(50)=85 tell you?
f is the given profit function whose input is number of cones and output is profit, f(50)=80 tells that $80 profit is made by selling 50 cones of ice cream.
What is function?A function is a relation that assigns each element of a set a unique element of another set.
f(x) denotes that function f works on the input values x and give output f(x).
If f is a function and f(x) = x+2, then if we have to check x= 1 , then
f(1) = 1+2 = 3 is the value of the function f at x=1
A La Mode Ice Cream Parlor uses a function f as profit function
The input x is the number of cones it sells and output is profit
f(50) = 85
⇒x = 50 and f(50) = 85
It means that when the parlor sells x = 50 cones , it makes profit $ f(50) = 85
or On selling 50 cones the profit made is $80
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Please Help me, I will mark brainiest. What are the vertex and range of y = |x + 2| − 3?
(−2, −3); −∞ < y < ∞
(−2, −3); −3 ≤ y < ∞
(0, −1); −∞ < y < ∞
(0, −1); −3 ≤ y < ∞
The vertex and the range of the absolute value function are given as follows:
(−2, −3); −3 ≤ y < ∞.
How to find the vertex and the range of the absolute value function?The absolute value function in the context of this problem is defined according to the following rule:
y = |x + 2| − 3.
For the general equation, with vertex (h,k), the definition is given as follows:
y = |x - h| + k.
Hence, in the context of this problem, the coefficients of the vertex are given as follows:
h = -2, k = -3.
Hence the vertex is:
(-2,-3).
The range of a function is the set containing all the output values assumed by the function. For the absolute value function, it is given by the following interval:
k ≤ y < ∞
Hence, for the function defined in this problem, the interval is given by:
-3. ≤ y < ∞
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Let f(x) = x^2 + 2x and g(x) = 4x^2 − 3. Find the function. f + g
The function operation ( f + g )( x ) in the functions f( x ) = x² + 2x and g( x ) = 4x² - 3 is 5x² + 2x - 3.
What is the function operation ( f + g )( x ) in the given function?A function is simply a relationship that maps one input to one output.
Given the data in the question;
f( x ) = x² + 2xg( x ) = 4x² - 3( f + g )( x ) = ?First, replace the function designators in f + g with actual functions.
( f + g )( x ) = ( f )(x) + ( g )( x )
( f + g )( x ) = ( x² + 2x ) + ( 4x² - 3 )
Remove the parenthesis
( f + g )( x ) = x² + 2x + 4x² - 3
Collect and add like terms
( f + g )( x ) = x² + 4x² + 2x - 3
( f + g )( x ) = 5x² + 2x - 3
Therefore, the function operation ( f + g )( x ) is 5x² + 2x - 3.
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5. Which function does NOT have a range of all real numbers?
a. f(x) = 3x
b. f(x) = -0.5x + 2
c. f(x) = 8 - 4x 8
d. f(x) = 3
If * = 8 units, y= 13 units, and h= 11 units, then what is the area of the parallelogram shown above?
The figure below has an area equivalent to 88 square units.
The parallelogram's characteristicsIn Euclidean geometry, a parallelogram is a simple quadrilateral having two sets of parallel sides.
The opposing or confronting sides and the opposing angles in a parallelogram are of equal length.
Area = length * breadth is the formula for computing the area of a parallelogram.
Substituting the given values
Area = x * h
Area of the parallelogram = 8 * 11
Area of the parallelogram = 88 square units.
Consequently, the parallelogram above has an area of 88 square units.
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if apples cost $3 per pound and bananas cost $5 per pound, how many whole pounds of apples should bill buy if he wants to maximize his utility and he has $31 to spend?
I f Bill wants to maximize his utility while spending $31 on apple. Bill van buy 10 whole pounds of Apples
How to find the number of whole pounds of apples bill can buy if he has $31 to spendgiven data
Apples cost $3 per pound
Bananas cost $5 per pound
amount Bill has to spend $31
The number of whole apple Bill can buy
Using $31 the number of whole apples this can buy is gotten dividing the the total amount by the price of apple per pound.
= amount Bill has to spend $31 / Apples cost $3 per pound
= 31 / 3
= 10.33
Since we are solving for whole pounds of apple Bill can buy 10 whole pounds of apples
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In which set(s) of numbers would you find the number-202/45Natural numberIntegerWhole numberReal numberIrrational number
Natural number: No, because when you divide -202/45 you do not get a integer.
Integer: No, for the reason given before.
Whole number: No, for the reason given before (it is not an integer)
Real number: Yes, because real numbers include negative fractions.
Irrational number: No, because you can write the number as a fraction of two integers.
You would find the number -202/45 in the set of the real numbers.
which choices is equivalent to the expression below?
[tex]\sqrt{-20}[/tex]
The expression √-20 has an equivalent of 2√-5
What are expressions?Expressions are mathematical statements that are represented by variables, coefficients and operators
How to determine the equivalent expression?The expression is given as
√-20
Express 20 as the product of 4 and -5
So, we have the following equation
√-20 = √4 * -5
Expand the equation
So, we have the following equation
√-20 = √4 * √-5
Evaluate the exponent
√-20 = 2√-5
Hence, the equivalent expression of √-20 is 2√-5
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Cynthia was offered two different jobs for the summer. Working as a camp counselor, she will earn $20 per hour plus an additional $25 bonus. Her earnings after x hours can be represented by the function f(x) = 20x + 25. Working as a lifeguard, Cynthia will earn $15 per hour and an additional $50 bonus. Her earnings after x hours can be represented by the function g(x) = 15x + 50. The arithmetic operation (f − g)x can be used to determine the difference in the salary Cynthia will earn working as a camp counselor instead of a lifeguard after x hours. What is the function (f − g)x?
The difference in the salary Cynthia will earn working as a camp counselor instead of a lifeguard after x hours (f − g)x = 5x - 25.
What is a function?A function can be defined as the set of inputs that results in output.
Given, Cynthia earns 20 dollars per hour working as a camp counselor plus an additional 25 dollars as a bonus which is f(x) = 20x + 25, and as a lifeguard 15dollars per hour and an additional 50 dollars bonus which is g(x) = 15x = 50.
We know (f - g)x = f(x) - g(x).
∴ The difference in the salary Cynthia will earn working as a camp counselor instead of a lifeguard after x hours is f(x) - g(x).
= (20x + 25) - (15x + 50).
= 20x - 15x + 25 - 50.
= 5x - 25.
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If a die is rolled three times, what is the probability of
getting a 2 on the first roll, an odd number on the second
roll, and a number less than 5 on the third roll?
Answer:
probability of getting 2 = 1/6
probability of getting an odd number=3/6=1/2
probability of getting number less than 5 = 4/6=2/3
multiply probabilities:
1/6x1/2x2/3
=2/36
=1/18
C(0)=0
Let c(t) be the number of customers in a restaurant t hours after 8am Explain the meaning of each statement please help
The meaning of each statement is shown below.
Step-by-step explanation:
Assume that the given statements are
(a) c(0)=0
(b) c(3)=c(8)
(c) c(n)=29
(d) c(13)<c(12)
Let c(t) be the number of customers in a restaurant t hours after 8 A.M.
We need to find the meaning of each given statement.
(a) c(0)=0 means the number of customers 0 hours after 8 A.M (i.e., 8 A.M.) is 0.
(b) c(3)=c(8) means the number of customers 3 hours after 8 A.M (i.e., 11 A.M.) is equal to the number of customers 8 hours after 8 A.M (i.e., 4 P.M.).
(c) c(n)=29 means the number of customers n hours after 8 A.M is 29.
(d) c(13)<c(12) means the number of customers 13 hours after 8 A.M (i.e., 9 P.M.) is less than the number of customers 12 hours after 8 A.M (i.e., 8 P.M.)
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Exercice n'11: Calcule:
A = 19+ (8-25);
B=(-15+6)-(23-18)
C = (154-6) +3-(-9+7):
D=-13+ (5+8)-(-4+8)
E = (-5)-(17+ (-13))-((-8) - (+2)):
F = (12-(-3)) - (12-(-3))
G=15-(-3-((+12)-16)):
H=-12-(-15 +30) -(65-20) - 20
Answer:
Step-by-step explanation:
Here in all these questions we need to follow the rules of BODMAS which tells us the steps to solve and mathematical operation.
B-Bracket
O-Of
D- Division
M-Multiplication
A-Addition
S-Subtraction
now,
A. 19+(8-25)
we need to solve what's inside the bracket first
so, 8-25= -17
=19+(-17)
=2
B. (-15+6)-(23-18)
=(-9)-5
= -14
C. (154-6)+3-(-9+7)
= 148+3-(-2)
=148+3+2
= 153
D. -13+(5+8)- (-4+8)
= -13+13-4
= -4
E. (-5)-(17+(-13))-((-8) -(+2))
= -5 -(4)-(-10)
= -5-4+10
= 1
F. (12-(-3))-(12-(-3))
= 15-15
=0
G. 15 -(-3-((+12)-16))
= 15-(-3-(-4))
= 15- 1
= 14
That's how we do it try the last one by your self!
Which of the following acids contain equal numbers of atoms?
A Sulfuric Acid H2SO4
B Phosphoric Acid H3PO4
C Vinegar C2H3O2
D Boric Acid H3BO3
Which of the following acids contain equal numbers of atoms?
A Sulfuric Acid H2SO4
B Phosphoric Acid H3PO4
C Vinegar C2H3O2
D Boric Acid H3BO3
A, C and D
A, B and C
A and B
B and D
Sulfhuric acid, boric acid and vinegar have 7 atoms present in them
Equivalent Number of Atoms
To find the compounds with equal number of atoms, we must take each individual atoms and find how many atoms are present in them.
In the first compound, we have sulfuric acid.
[tex]H_2SO_4 = 7 atoms\\[/tex]
Second compound, we have phosphoric acid
[tex]H_3PO_4 = 8 atoms[/tex]
Third compound, we have vinegar
[tex]C_2H_3O_2 = 7 atoms[/tex]
Fourth compound, we have boric acid
[tex]H_3BO_3 = 7 atoms[/tex]
From the above, only sulfuric acid, vinegar and boric acid have equal number of atoms present in them.
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Solve for x: 3x/6 + 1 = 7
Answer:
X = 12
Explanation:
3x/6 + 1= 7
/2 + 1 = 7
x/2 + 1 = 7
x/2 + 2/2 = 7
X+2/2 = 7
X = 12
hope this helps you :)