To do a problem like this, multiply the base height by the rate. So here is how you do it:
64.5 times 1.25
The easiest way is to get a calculator and plug in the equation
Your answer should be 80.625
*If you multiply by hand, remember to move the decimal back to the left three places.*
Which of the following graphs matches the circle defined by this equation?
The equation of a circle:
[tex](x-h)^2+(y-k)^2=r^2[/tex]
(h, k) - center
r - radius
We have:
[tex](x-2)^2+(y+3)^2=16\\\\(x-2)^2+(y-(-3))^2=4^2[tex]
Therefore:
[tex]h=2,\ k=-3\to\text{center:}\ (2,\ -3)\ \text{and}\ r=4[/tex]
The graph matches the circle defined by this equation (x-2)^2 + (y+ 3)^2 = 16 is option D.
What is the equation of the circle with radius r units, centered at (x,y) ?If a circle O has radius of r units length and that it has got its center positioned at (h, k) point of the coordinate plane,
then its equation is given as:
[tex](x-h)^2 + (y-k)^2 = r^2[/tex]
The given equation of the circle is;
[tex](x-2)^2 + (y+ 3)^2 = 16[/tex]
Where, (h, k) - center
r - radius
here the radius of the circle is 4.
So, the graph matches the circle defined by this equation (x-2)^2 + (y+ 3)^2 = 16 is option D.
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Find the 25th term of an arithmetic sequence whose first term is 12 and whose common difference is ‒6.
A.
‒144
B.
132
C.
‒132
D.
156
Tomika plans to run 84miles in 4weeks.If she continues the pattern how many miles will she run in a year
Answer:
She will run a distance of 1095.78 miles per year.
Explanation:
Number of days in a year = 365.25
Number of days in a week = 7
Number of weeks in a year = 365.25/7 = 52.18 weeks.
Tomika plans to run 84 miles in 4 weeks.
Distance run by Tomika in 1 week = 84/4 = 21 miles.
Distance run by Tomika in 1 year = 21*52.18 = 1095.78 miles
So she will run a distance of 1095.78 miles per year.
If Tomika continues the pattern, she will run approximately 1,092 miles in a year.
How to get the miles ranThere are 52 weeks in a year, so you can divide 52 by 4 to find out how many 4-week periods there are in a year:
Number of 4-week periods in a year = 52 weeks / 4 weeks/period = 13 periods
Now, multiply the miles she runs in each 4-week period (84 miles) by the number of 4-week periods in a year (13 periods):
Total miles in a year = 84 miles/period × 13 periods
Total miles in a year = 1,092 miles
So, if Tomika continues the pattern, she will run approximately 1,092 miles in a year.
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Question 5
Solve the following system of equations by using the substitution method.
y = 6x – 11
-2x – 3y = -7
(1, 2)
(2, 1)
(-3, 1)
(2, 4)
answer is (2,1)
y = 6x – 11
-2x – 3y = -7
Substitute 6x - 11 for y in the second equation
-2x – 3(6x-11) = -7
-2x – 18x +33 = -7
-20x + 33 = -7
Now subtract 33 on both sides
-20x = -7 - 33
-20x = -40 ( divide by -20 on both sides)
x= 2
We know y = 6x -11
Plug in 2 for x and find out y
y = 6(2) -11= 12 -11 = 1
So answer is (2,1)
Travis writer 72=9x8. Is he correct ? Explain at least two strategies Travis to check his work
Since, Travis writes [tex]9 \times 8 = 72[/tex].
Yes, he is correct.
We will use two strategies to check Travis work.
First strategy:
We will divide '72' by '9'.
Since, [tex]72 \div 9 = 8[/tex]
So, the expression which Travis wrote as [tex]72 = 9 \times 8[/tex] is correct.
Second strategy:
We will add '9' eight times.
[tex]9+9+9+9+9+9+9+9 = 72[/tex]
Therefore, [tex]9 \times 8 = 72[/tex]
So, the expression [tex]72= 9 \times 8[/tex] is correct.
Write a linear equation that represents the arithmetic sequence 10,8,6,4
The linear equation that represents the arithmetic sequence is[tex]a_n=10-2(n-1)[/tex]
Writing arithmetic sequence as a function of linear equations.
Arithmetic sequence is a progressive set of numbers with a common difference between each term. On the other hand a linear equation y =mx + b where m= slope and b = y-intercept.
In the given question, we have the arithmetic sequence;
10, 8, 6, 4 ...
Here the arithmetic sequence, the common difference is -2. So the common difference relates to the slope of the linear equation.
The first term is 10, the common difference is - 2. Using the general formula for arithmetic sequence, we have:
[tex]a_n=10-2(n-1)[/tex]
what is the value of j(-5)
[tex]f(x)=\left\{\begin{array}{ccc}2-x&if&x\leq-5\\x+11&if&x > -5\end{array}\right\\\\-5\leq-5\ \text{therefore for}\ x=-5,\ f(x)=2-x\\\\f(-5)=2-(-5)=2+5=7[/tex]
The glee club has 120 cupcakes to sell. They have decided to arrange the cupcakes in th shape of a rectangle, such as the rows have an even number of cupcakes and the columns have an odd number of cupcakes. How many arrangements of cupcakes can they creat? Explain.
Answer:
2x60, 4x30
Step-by-step explanation:
Given that the glee club has 120 cupcakes to sell.
These 120 cupcakes are to be arranged in a rectangle shape such that
there are even number of cakes lengthwise and even number of cakes breadthwise.
If l is the number of cakes along row, and m is the number of cakes along column, then we have both l and m as even.
Also lm=120
In other words, we must find 2 even factors of 120 l and m such that lm = 120
2x60 is one such pair
Next is 4x30.
There cannot be any other pair satisfying this condition.
Hence answer is 2x60 or 4x30
Urgent !!! 20 Points!!!
Find Arc BC + Arc AD
I figured out that X=6
I just can't figure out what the any of the angles measures are!
Please help.
x = 6 is correct
Focus on the right triangle EDF. The short leg is x = 6. The hypotenuse is 4+8 = 12. Since the hypotenuse is twice that of the short leg, we have a 30-60-90 triangle. Recall that the ratio of the short leg, long leg and hypotenuse is 1:sqrt(3):2 or you can think of it as x: x*sqrt(3): 2x. The 30 degree angle is opposite the short leg (smallest angle opposite smallest side). So the 60 degree angle is angle FED, which is the angle formed by the two chords.
This means angle BEC is 120 degrees since 120+60 = 180.
Now use the second part of the hint which says that the two arcs add up and are cut in half to get the angle formed by the intersecting chords. This means,
angle BEC = (1/2)*(arc BC + arc AD)
120 = (1/2)*(arc BC + arc AD)
2*120 = 2*(1/2)*(arc BC + arc AD)
240 = arc BC + arc AD
arc BC + arc AD = 240 degrees
To make a scarf, Jenny uses blue and white yarn. The number of yards of blue yarn she uses is 4 times the number of white yarn in each scarf. Write 4 ratios to show the number of yards of white yarn to blue yarn for a scarf? 7th grade math
Answer: 4:1, 8:2, 12:3, 16:4
Step-by-step explanation:
blue is 4 times white
blue: white
4 : 1
multiply both numbers by 2 to get 8:2
multiply both numbers by 3 to get 12:3
multiply both numbers by 4 to get 16:4
Please help and show work!!
Step 1. Use the Multiplication Distributive Property
So, -2n^6y^5 * -6n^3y^2n^3y^3
Step 2. Take out the constants
-(2 * -6)n^6n^3n^3y^5y^2y^3
Step 3. Simplify 2 * -6 to -12
-(-12)n^6n^3n^3y^5y^2y^3
Step 4. Regroup terms
-(-12n^6n^3n^3y^5y^2y^3)
Step 5. Use Product Rule
-(-12n^6 + 3 + 3 y^5 + 2 + 3)
Step 6. Simplify 5 + 2 + 3 to 10
-(-12n^12y^10)
Step 8. Simplify brackets
12n^12y^10
(-2n⁶y⁵)(-6n³y²)(ny)³ = We can take out the constants
= (12)(n⁶y⁵)(n³y²)(n³y³) = We can group the same variables
= (12)(n⁶)(n³)(n³) * (y⁵)(y²)(y³) = We can use the power product rule
=(12)(n⁽⁶⁺³⁺³⁾) * (y⁽⁵⁺²⁺³⁾) = We add the exponents
Answer : 12n¹²y¹⁰
Hope this helps!
[tex]\textit{\textbf{Spymore}}[/tex]
Which of the following is the solution to the quadratic equation x2 + 16x + 55 = 0?
A.x = 11, -5
B.x = -11, 5
C.x = -11, -5
D.x = 11, 5
The answer is not found among the options A, B, C or D.
The standard form of a quadratic equation is ax² + bx + c = 0. Here, a is the coefficient of x² (which is 1 in this case), b is the coefficient of x (which is 16), and c is the constant (which is 55).
To find the roots of a quadratic equation ax² + bx + c = 0, we use the quadratic formula, which is x = [ -b ± sqrt(b²-4ac) ] / 2a.
Here, b²-4ac = (16)² - 4x1x55 = 256 - 220 = 36, which is a perfect square, so we can continue.
Then the quadratic formula gives us two solutions:
Solution1 = [ -16 + sqrt(36) ] / (2x1) = -16 + 6 / 2 = -5
Solution2 = [ -16 - sqrt(36) ] / (2x1) = -16 - 6 / 2 = -11
So, the roots of the equation are x= -5 and x= -11.
Matching our solutions with the options given, we do not find any that fits the result. Therefore, the answer is not found among the options A, B, C or D.
Question in the below attached ,
ITS NOT B
3x + 32 + x + 48 = 180
4x + 80 = 180
4x = 100
x = 25
Angles
x + 48 = 25 + 48 = 73
3x + 32 = 3(25) + 32 = 75 + 32 = 107
Larger angle = 107
Answer
C) x = 25, 107 degrees
HELPP 70 POINTS!!!!!!!!!!!
The graph shows the function f(x) = 2x. What is the value of x when f(x) = 8?
A.2
B.1
C.0
D.3
Your answer should be D. 3
Do these two expressions represent equivalent expressions Explain why or why not. 36 + 20 4(9 + 5)
yes
assuming the 2 expressions are 36 + 20 and 4(9 + 5)
36 + 20 = 56 and
4(9 + 5 ) = 4(14) = 4 × 14 = 56
Yes, the 2 expressions are 36 + 20 and 4(9 + 5) represent equivalent expressions.
What does it mean to solve an equation?An equation represents the equality of two or more mathematical expressions.
When someone asks you to solve an equation, then they usually mean to find the values of the unknowns for which that equation would be true (the equality between expressions should hold true for those values).
Solutions to an equation are those values of the variables involved in that equation for which the equation is true.
Let assume the 2 expressions are 36 + 20 and 4(9 + 5).
36 + 20 = 56
and
4(9 + 5 )
= 4(14)
= 4 × 14
= 56
Yes, they are equivalent to each other.
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6^5x=20 round to the nearest ten-thousands
Which ordered pair is a solution of the equation y = –9x + 4?
I don't want the answer, I just don't know how to solve it. I'm two weeks behind in work so anything helps!
OK
I'll take a hypothetical case. Suppose one of the ordered pairs = (1, 6) which means 'x = 1 when y = 6)'
we substitute x = 1 and y = 6 into the equation and see if the left side = right side
left: y = 6
right: -9x + 4 = -9(1) + 4 = -9 + 4 = -5
Therefore this ordered pair is NOT a solution to the equation.
Answer: Hello mate!
we have the equation y = –9x + 4 and we want to find ordered a pair that is a solution of the equation. Where a pair has the form (x, y)
First, you need to know that there are infinite ordered pairs that are a solution of this equation, if you want to find them, you need to replace the value of x (or the value of y) with a number, and solve the equation:
suppose x = 1
then y = -9*1 + 4 = -9 + 4 = 5
then the pair (1,5) is a solution of the equation.
The general form of the pairs is (x,y), then the pairs that are a solution for this equation are the pairs of the form (x, y(x)) = (x, -9x + 4)
Which relationship is an example of inverse variation ?
If relationship is an inverse variation then the product of x and y is constant.
A)
2 · 6 = 12
3 · 9 = 27
NOT
B)
1 · 6 = 6
2 · 3 = 6
3 · 2 = 6
6 · 1 = 6
YES
C)
0 · 0 = 0
2 · 8 = 16
NOT
D)
-3 · 4 = -12
-4 · (-3) = 12
NOT
Answer: B)Please help 20 POINTS. Problem below
f(x): y = 9x² - 12
f⁻¹(x): x = 9y² - 12
x + 12 = 9y²
[tex]\frac{x+12}{9} = y^{2}[/tex]
[tex]\sqrt{\frac{x+12}{9}} = |y|[/tex] ; x ≥ -12
[tex]+/-\sqrt{\frac{x+12}{9}} = y[/tex]
Answer: C
many shapes can be congruent. Triangles is one of them. What are the various ways to prove triangle congruency? Where in the real world would it be important for you to apply these concepts?
For triangles to be congruent, they must have the same angles and same three sides, irrespective of what direction they are pointing to.
Following are the ways to find if two triangles are congruent:
1. SSS (side, side, side): If all three sides of a triangle are equal to the three sides of another triangle, the triangles are congruent.
2. SAS (side, angle, side): If the two sides and the included angle of a triangle are equal to the corresponding sides and the angle of another triangle, the triangles are congruent.
3. ASA (angle, side, angle): If the two angles and their shared side is equal to the corresponding angles and shared side of another triangle, the triangles are congruent.
4. AAS (angle, angle, side): If two angles and the non-included side of a triangle are equal to the corresponding angles and non-included side of another triangle, the triangles are congruent.
5. HL (hypotenuse, leg): If the hypotenuse and one leg (side other than hypotenuse) of a right angle triangle are equal to the corresponding hypotenuse and the leg of another right angle triangle, then the two triangles are congruent.
Congruent triangles are used in real world for construction purposes to ensure that the man-made structures are strong and stable enough.
Final answer:
There are multiple ways to prove triangle congruency, including SSS, SAS, ASA, AAS, and RHS. These concepts are important in real-world applications such as architecture and engineering for ensuring precision and safety in structures and components.
Explanation:
There are several methods to prove that two triangles are congruent, each based on different sets of information about the triangles' sides and angles. The following are commonly used:
Side-Side-Side (SSS) Congruence: If three sides of one triangle are congruent to three sides of another triangle, the triangles are congruent (Theorem 16).Side-Angle-Side (SAS) Congruence: If two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, the triangles are congruent (Theorem 11).Angle-Side-Angle (ASA) Congruence: If two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, the triangles are congruent.Angle-Angle-Side (AAS) Congruence: If two angles and a non-included side of one triangle are congruent to two angles and the corresponding non-included side of another triangle, the triangles are congruent.Right Angle-Hypotenuse-Side (RHS) Congruence (also known as HL): If the hypotenuse and one leg of a right triangle are congruent to the hypotenuse and one leg of another right triangle, the triangles are congruent.These concepts are utilized in various real-world applications, such as architectural design, engineering, manufacturing, and construction, where precise measurements and shapes are critical for the safety and fit of structures and components.
If $2300 is spent on vacations or travel each year, estimate how much should be set aside each month for those expenses?
The Answer Is A. above me is the example.
the sum of the least and the greatest of 3 consecutive integers is 60. What are the values of the 3 integers?
29, 30, 31
consecutive integers have a difference of 1 between them
let the 3 integers be n, n + 1, n + 2
then n + n + 2 = 60
2n + 2 = 60 ( subtract 2 from both sides )
2n = 58 ( divide both sides by 2 )
n = 29 ← least integer
thus the 3 integers are 29, 30, 31
please help asap 30 pts
Remark
You need a split statement like C or D. A and B would have to be considered if the ages were between 12 and 60. However the discounts apply the other way. Up to 12 and over 60. You need two inequalities to describe this.
Under 12
x ≤ 12
The pointy end of the arrow points toward the x. x must be less than or at most equal to 12. The pointy end of the inequality must be directed towards the smaller number.
Over 60
x ≥ 60
This time the pointy end is directed towards the 60. x must be at least 60 and then upwards.
So C is the correct answer.
Answer:
answer in c pls give brainlist
Step-by-step explanation:
Simplify the expression.2/3 (–9m + 12)
Distribute 2/3 to all terms within the parenthesis. Simplify
(2/3)(-9m) = ((2)(-9m))/(3) = -18m/3
(2/3)(12) = (24)/(3) = 8
-18m/3 + 8
Simplify. Divide.
-18m/3 = -6m
-6m + 8 is your answer
hope this helps
Hi,
Solution,
2/3(−9m+12)
=(2/3)(−9m+12)
=(2/3)(−9m)+(2/3)(12)
Answer,
=−6m+8
How do you round to the nearest hounded thousand for the number 387,422
Answer:
400,000
Step-by-step explanation:
FIFTY POINTS! ASAP! DUE IN A FEW MINUTES! Just fill in the blanks!!
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Provide reasons for the proof.
Given: ∠2 ≅ ∠4
and ∠2 and ∠3 are supplementary
Prove: ∠1 ≅ ∠3
Answer:
This proof involves the definitions of congruence and supplementary angles, as well as some of the properties of equality.
∠1 and ∠2 are supplementary // given
∠3 and ∠4 are supplementary // given
∠1 ≅ ∠3 // given
m∠1 + m∠2 = 180° // definition of supplementary angles
m∠3 + m∠4 = 180° // definition of supplementary angles
m∠1 + m∠2 = m∠3 + m∠4 // transitive property of equality
m∠1 = m∠3 // definition of congruent angles
m∠1 + m∠2 = m∠1 + m∠4 // substitution property of equality (replaced m∠3 with m∠1)
m∠2 = m∠4 // subtraction property of equality (subtracted m∠1 from both sides)
∠2 ≅ ∠4 // definition of congruent angles
hope this helps
Step-by-step explanation:
Answer:
For the future students who need answer to this problem ....
Step-by-step explanation:
5. given
7. Transitive property of equality
8. Substitution Property
9. Subtraction Property of Equality
10. Converse of Angles Congruent Postulate
I am writing this test now and these are the answers I put in. It hasn't been graded yet but I'm pretty sure that they are correct. But pls lmk if anything is wrong. HOPE THIS HELPS
PLEASE RATE AND CLICK ON THANKS IF THIS WAS HELPFUL :))))
A cyclist travels at distance of 400 meters in 120 seconds towards school, calculate his speed. (Show your work)
Calculate his velocity if the direction is North East (NE)
The cyclist in practice question 2, comes to a stop position within 15 seconds. Calculate his acceleration. (Show your work) Is this an example of positive or negative acceleration?
we know that
The scalar magnitude of the velocity vector is the speed. The speed is equal to
[tex]Speed=\frac{distance}{time}[/tex]
in this problem we have
[tex]distance=400\ m \\time=120\ sec[/tex]
substitute in the formula
[tex]Speed=\frac{400}{120}[/tex]
[tex]Speed=3.5\frac{m}{sec}[/tex]
therefore
the answer Part a) is
the speed is equal to [tex]3.5\frac{m}{sec}[/tex]
Part b) Find the velocity
we know that
Velocity is a vector quantity; both magnitude and direction are needed to define it
in this problem we have
the magnitude is equal to the speed
[tex]magnitude=3.5\frac{m}{sec}[/tex]
[tex]direction=North\ East\ (NE)[/tex]
therefore
the answer Part b) is
the velocity is [tex]3.5\frac{m}{sec}\ North\ East\ (NE)[/tex]
Part c)
we know that
the acceleration is equal to the formula
[tex]a=\frac{V2-V1}{t2-t1}[/tex]
in this problem we have
[tex]V2=0 \\V1=3.5\frac{m}{sec}[/tex]
[tex]t2=15\ sec\\t1=0[/tex]
substitute in the formula
[tex]a=\frac{0-3.5}{15-0}[/tex]
[tex]a=-\frac{3.5}{15}\frac{m}{sec^{2}}[/tex]
[tex]a=-\frac{7}{30}\frac{m}{sec^{2}}[/tex]
therefore
the answer Part c) is
the acceleration is [tex]-\frac{7}{30}\frac{m}{sec^{2}}[/tex]
This is an example of negative acceleration
Step-by-step explanation:
1. It is given that,
Distance covered by the cyclist, d = 400 m
Time taken, t = 120 s
Speed = distance / time taken
[tex]v=\dfrac{400\ m}{120\ s}[/tex]
v = 3.33 m/s
So, the speed of the cyclist is 3.33 m/s.
2. The cyclist comes to a stop position within 15 seconds. Its acceleration is given by :
[tex]a=\dfrac{v-u}{t}[/tex]
[tex]a=\dfrac{0-3.33\ m/s}{15\ s}[/tex]
[tex]a=-0.22\ m/s^2[/tex]
So, the acceleration of the cyclist is [tex]-0.22\ m/s^2[/tex]. It is an example of negative acceleration as the cyclist is decelerating. Hence, this is the required solution.
The factory workers make 751 toys per day if they work 5 days per week how many toys will the workers make in 3 weeks
The workers make 751 toys per day
They work for 5 days per week
Number of toys made in one week is;
751 × 5 = 3755 toys
Number of toys made in 3 weeks is;
3755 × 3 = 11,265 toys
State a conclusion that seems reasonable.
You find a nest with 12 eggs in it. The first 5 hatch out to be snakes.
Conclusion:
Answer:
its a snakes nest.
Step-by-step explanation:
Brian drove 375 miles using 14 gallons of gas. At this rate, how many miles would he drive using 16 gallons of gas?
[tex]\frac{375}{14}=\frac{x}{16}:x=\frac{3000}{7}(Decimal: x=428.57143...)[/tex]