Answer:
89
Step-by-step explanation:
80+82+83+91+89 = 425
425/5 = 85
Mr. duc asked perry to set up 450 chairs in a large hall. Perry puts 20 chairs in each
Row. He has already set up 15 rows of chairs. How many more chairs must he set up
Answer:
150 more chairs
Step-by-step explanation:
20 chairs x 15 rows = 300
450 - 300 = 150
Mr. Gates went to the mall with $20. He bought a bra for $7.98, an adult diaper for $5.99, and a Barbie Doll for $1.50. How much money did he have left when he headed back to his crib?
BoldItalicUnderline
Answer:
$20 - $7.98 - $5.99 - $1.50 = $4.53
Step-by-step explanation:
If AB is rotated 180 clockwise about a point not on the line AB then which of the following statements
about its image, ''
AB , is true?
Answer:
yes
Step-by-step explanation:
The large rectangle below represents one whole.
What percent is represented by the shaded area?
Answer: the percent of 6 of 20 is 30%
What is the sum of the measures of the exterior angles of a polygon that has fifteen sides?
Answer:
The sum of the measures of the exterior angles of a polygon with 15 sides will be 360°.
Step-by-step explanation:
The Exterior Angle Sum Theorem defines that the sum of the exterior angles of any convex polygon is 360°.Given that a polygon has 15 sides.
If the polygon is regular with 15 sides, it indicates that each exterior angle is
360°/15 = 24°
so the measure of each exterior angle of a 15 sided polygon is 24°.As the polygon has 15 sides, the sum of the measures of the exterior angles of a polygon will be:
15 × 24 = 360°Therefore, the sum of the measures of the exterior angles of a polygon with 15 sides will be 360°.
Each grade level at a school for magic has 257 students. There are 13 grade levels.
How many total students attend both schools?
Answer:
257⨉ 13=3341
Step-by-step explanation:
trsur help me plzffefedsfsd
Answer:
157.5 Miles
Step-by-step explanation:
I used my brain and that is what i got
Solve the system
u=2x-y v= 3 x+2y, for x and y in terms of u and v then find the value of Jacobian σ(x,y)/σ(u,v). Find the image under the transformation of the triangular region with the vertices (0,0) ,(2,4), and (2, -3) in the x,y plane. Sketch the transformed region in uv plane.The function for x in terms of u and v is x=?
Answer:
x = [tex]\frac{2u+v}{7}[/tex]
y = [tex]\frac{2v - 3u }{7}[/tex]
Jacobian value = 1/7
Step-by-step explanation:
Given data:
u = 2x -y
v = 3x + 2y
solving the system for x and y in terms of u and v
x = [tex]\frac{2u+v}{7}[/tex]
y = [tex]\frac{2v - 3u }{7}[/tex]
The value of the Jacobian = 1/7 ( solution attached below )
Image under the transformation of the triangular region with vertices ( 0,0) , (2,4) and (2,-3) in the x-y plane is attached below
In this exercise we have to use system and Jacobian knowledge to calculate the requested values, thus we find that:
[tex]X= \frac{2u+v}{7} \\\\Y= \frac{2v-3u}{7}\\\\J= \frac{1}{7}[/tex]
Given data as:
[tex]u = 2x -y[/tex] [tex]v = 3x + 2y[/tex]
Solving the system for x:
[tex]2u=4x-2y\\v= 3x-2y\\= 2u+v/7[/tex]
Solving the system for v:
[tex]u = 2(2u+v/7)-y\\y= 1/7(2v-3u)[/tex]
Find the value of the Jacobian:
[tex]\frac{dx}{du}= \frac{d(2u+v/7)}{du}= 2/7\\\\\frac{dv}{du}= \frac{d(2u+v/7)}{du}= 2/7[/tex]
[tex]\frac{dx}{du}= \frac{d(2v+3u/7)}{du}= -3/7\\\\\frac{dv}{du}= \frac{d(2v+3u/7)}{du}= 2/7[/tex]
Substitute the given value in equation will become:
[tex]J= 1/7[/tex]
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5. Angle ABC measures pi/4 radians, and the coordinates of C are about (0.71, 0.71), b.
A circle on a coordinate plane, center at the origin, B, radius 1. Points on the circle, A, at 1 comma 0, C in the first quadrant, D in the second quadrant, E in the fourth quadrant. Segment B C.
The measure of angle ABD 3pi/4 is radians. What are the approximate coordinates of D? Write your answer in the following format: (x,y) with no spaces. Round your answer to the nearest hundredth.
HELPPPPP
Answer: (-.71, .71)
Step-by-step explanation:
To find the approximate coordinates of point D, we need to consider the angle ABD that measures [tex]3pi/4[/tex]radians.
Since point B is the center of the circle with radius 1 and point A lies on the x-axis at (1, 0), we can calculate the coordinates of point D using trigonometry. First, let's find the coordinates of point B, which is the origin (0, 0). Since the angle ABD measures[tex]3pi/4[/tex] radians, we know that angle ABO is pi/4 radians (complementary angle to ABD).
Using trigonometry, we can find the x-coordinate of point D based on the angle ABO: x-coordinate of D = cos(pi/4) = cos(45 degrees) = 1/sqrt(2) ≈ 0.71 Similarly, using trigonometry, we can find the y-coordinate of point D based on the angle ABO: y-coordinate of D[tex]= sin(pi/4) = sin(45 degrees) = 1/sqrt(2) ≈ 0.71[/tex] Therefore, the approximate coordinates of point D are (0.71, 0.71).
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Jorge used to pay $26 to park his car for 6.5 hours in a parking garage,
The parking garage has increased its fees to $3 for every 30 minutes, rounded to the nearest 30-minute interval,
By what percent did the parking garage increase its fees?
Enter your answer in the box.
Answer:
The parking garage went from charging 4$ an hour to 6$ an hour.
there is a 50% increase
Step-by-step explanation:
If 2 and 6 are congruent, then line j is to parallel to lind k because
Which of the following equation has a slope of -3 and goes through the point (-2,7)?
y - 2=-3(x + 7)
y + 7 =-3(x - 2)
y - 7=-3(x + 2)
y + 2=-3(x - 7)
y + 2=-3(x - 7)
Step-by-step explanation:
(7p+3) - (2p+2)
the assignment is (add and subtract polynomials)
Answer:
5p + 1
Step-by-step explanation:
(7p + 3) - (2p + 2)
7p + 3 - 2p - 2
5p + 1
Sale amount is $12,500. Sales Tax is 5%. What is the new amount?
Answer:
13,125.
Step-by-step explanation:
you do 12,500 times .05 = 625 then add 12,500 and 625 then you get 13,125
Irina drove 400 miles in 8 hours. Albert drove 600 miles in 10 hours.
Use the drop-down menus to compare the average speeds for Irina and Albert
Irina's rate is Choose
miles per hour Choose than Albert's rate.
Choose...
5
10
100
200
Answer:
Irina drive 200 miles slower than Alberts rate
Step-by-step explanation:
What is 2+2 pls i really need the answer it would mean a lot to me
Answer:
ummm its 4
Step-by-step explanation:
A mean average of 70 or better on five exams is needed for a final grade of C. Jeffery Matthews first four exam grades are 75, 62, 84, and 91. What grade does he need on the fifth exam to get a C in the course?
Answer:38
Step-by-step explanation:
f(x) = 4x + 5; {-2, - 1,0,1,2}
Answer:
Step-by-step explanation:
F(x) = 4x+5
F(-2) = -3
F(-1) = 1
F(0) = 5
F(1) = 9
F(2) =13
How do you simplify 6 to the power of 2 plus 15
A. 21
B. 27
C.46
D.51
Correct answer gets brainlest!
Answer:
D
Step-by-step explanation:
6 to the power of 2 just means 6 squared. To solve this, just multiply 6 by itself. 6x6 is 36. Now, we have to add that to 15. 36+15 is 51.
Therefore, the correct answer is D!
Hope I helped!!!!!!!!!
Over Thanksgiving, you drove to Chattanooga, TN. You drove 120 miles in 2 hours. What is the unit rate in miles per hour?
Over Thanksgiving, you drove 60mph. (mi./time)
Hope this helps: If it did, please mark brainliest, give a thanks, and rate it five stars! [I'm two brainliests away from moving up!] Have an amazing rest of your day and stay safe! Let me know if you need anymore help! xx
Please hurry!!!! The quotient of 56 and n is multiplied by 3.
Create an equivalent expression using n to represent the unknown number.
Answer: n8→ I used n as the unknown number. Explanation: The quotient is the result of division between two numbers. The quotient of a number (I used n ) and 8 would be n8.
Step-by-step explanation:
I think it's 56/n=3n.
Write as a mixed number 1 5/6 times 1 1/3=
Answer:
The answer is 2 4/9
Step-by-step explanation:
hope this helps
1 5/6 × 1 1/3= 22/9
22/9 as mixed number is 2 4/9
Answer: the answer is 11/6*4/3
Step-by-step explanation:
Solve for x: x-5=3x+7
Answer:
-11/3 = x
Step-by-step explanation:
3 3/4 divided by 1 1/8
Answer: = 2 8/11
2 IS THE WHOLE NUMBER
8/11 IS THE FRACTION
Step-by-step explanation:
First
Convert any mixed numbers to fractions.
Then your initial equation becomes:
15/4÷11/8
Applying the fractions formula for division,
=15×84×11
=12044
Simplifying 120/44, the answer is
= 2 8/11
When [tex]3\frac{3}{4}[/tex] is divided by [tex]1\frac{1}{8}[/tex] we get the fraction 10/3.
To divide mixed fractions, we first convert them to improper fractions, and then perform the division.
Let's convert the mixed fractions into improper fractions:
[tex]3\frac{3}{4}[/tex]= (4× 3 + 3) / 4 = 15/4
[tex]1\frac{1}{8}[/tex] = (8 × 1 + 1) / 8 = 9/8
Now, we can divide the fractions:
(15/4) / (9/8)
To divide fractions, we multiply the first fraction by the reciprocal of the second fraction:
(15/4) × (8/9)
30/9
The GCD of 30 and 9 is 3, so divide numerator and denominator by 3:
10/3
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14,779 107,033 123,737 round to the nearest hundred?
Step-by-step explanation:
14,800
107
123,700
hope this helps have a great day
I need help answering this
Answer:
False
Step-by-step explanation:
165 - 90 = 75 + 40 = 115
115 is not the same as 165
Answer:
false
Step-by-step explanation:
it reads 125 degrees
Ok this is a number line problem
Determine whether the set W is a subspace of R3 with the standard operations. If not, state why.
W = {(0, x2, x3): x2 and x3 are real numbers}
W is a subspace of R3.
W is not a subspace of R3 because it is not closed under addition.
W is not a subspace of R3 because it is not closed under scalar multiplication.
Answer:
Step-by-step explanation:
From the given information.
R3 is a vector space over the field R, where R is the set of real numbers.
Where;
The set W = {(0, x2, x3): x2 and x3 are real numbers} is the subspace of [tex]\Re[/tex]³
To proof:
(0,0,0) ∈ W ⇒ W ≠ ∅
Suppose u and v is an element of W;
i.e.
u,v ∈ W (which implies that) ⇒ u (0,x2,x3) and v = (0,y2,y3) are real numbers.
Then
u+v = (0,x2,x3) +(0, y2, y3)
u+v = (0,x2+y2, x2+y3) ∈ W
⇒ u+v ∈ W ----- (1)
Now, if we take any integer to be an element of the real number [tex]\Re[/tex]
i.e
∝ ∈ [tex]\Re[/tex]
∝*[tex]\Re[/tex] = ∝(0,x2,x3)
∝*[tex]\Re[/tex] = (0,x2,x3) ∈ W
⇒ ∝*u ∈ W ------(2)
Thus from (1) and (2), W is a subspace of [tex]\Re[/tex]³
Is 80 a multiple of 10? Explain why or why not
Answer:
yes 80 is a mulitple of 10
Step-by-step
multiples
10x1=10
10x2=20
10x3=30
10x4=40
10x5=50
10x6=60
10x7=70
10x8=80 HOPE I HELPED :)
Karly is choosing between two health clubs. Yoga Studio A charges a membership fee of $22.00 and $24.50 per month. Yoga Studio B charges a membership fee of $47.00 and $18.25 per month. At how many months will they cost the same? *
Answer:
4 months
Step-by-step explanation:
Given
Studio A
[tex]Membership = \$22.00[/tex]
[tex]Monthly = \$24.50[/tex]
Studio B
[tex]Membership = \$47.00[/tex]
[tex]Monthly = \$18.25[/tex]
Required
Determine when the cost will be the same
For both, we have the total cost to be:
[tex]Cost = Membership + Monthly\ Cost * m[/tex]
Where m represents the number of month
For Studio A:
[tex]Cost = 22 + 24.5 * m[/tex]
For Studio B:
[tex]Cost = 47 + 18.25 * m[/tex]
Equate both expressions to get the required month
[tex]47 + 18.25 * m = 22 + 24.5 * m[/tex]
[tex]47 + 18.25 m = 22 + 24.5m[/tex]
Collect Like Terms
[tex]47 - 22 = 24.5m - 18.25 m[/tex]
[tex]25= 6.25m[/tex]
Reorder
[tex]6.25m = 25[/tex]
Solve for m
[tex]m = 25/6.25[/tex]
[tex]m = 4[/tex]
Hence, it'll take 4 months
