Answers
Answer:
C
Step-by-step explanation:
Lucia's claim is correct since any rotation that is a multiple of 45° carries a square onto itself
Related Questions
Which equation has no solution?
-5+8x-9=3(x+3)
-2(6-3x)=-12+6x
6-2(3-2x)=-4(3-x)
-(4x+9)=2x-3(2x+3)
Answers
Answer:
-2(6-3x)=-12+6x
Step-by-step explanation:
If you do the distributive property first and look at the other side of the = sign they are the same, which means that the answer would be x=x, which isn't a solution.
Solve x^2 + 18x – 19 = 0 by completing the square.
A) x = –1, x = 19
B) x = –9 + 10i, x = –9 – 10i
C) x = –9 + , x = –9 –
D) x = 1, x = –19
Answers
Answer:
The answer is D
Step-by-step explanation:
In the right triangle below, the measure of angle C is 90°, AB= 5 units, and CB = 2 units. What is tan B?
Answers
The value of the tanB is root of 21/2
We have given that ,
C is 90 degrees and side AB=5 units and CB=2 units
We have to find the tan B
We have given that the right angle triangle.
What is the value of tan ratio?
[tex]tan\theta=\frac{opposite side}{adjucent side}[/tex]
Here opposite side side of B is AC and adjacent side of B is CB.
We know the side AB=5 units and CB=2 units
First we have to find the side AC
Therefore by using Pythagoras theorem,
[tex]AB^2=CB^2+AC^2[/tex]
[tex]AB^2-CB^2=AC^2\\25-4=AC^2\\21=AC^2\\[/tex]
Taking square root on both side we have
[tex]\sqrt{21}=AC\\ AC=\sqrt{21}[/tex]
Now we have the tan ratio,
[tex]tan\theta=\frac{opposite side}{adjucent side}\\\\tanB=\frac{AC}{CB}\\\\tanB=\frac{\sqrt{21} }{2}\\[/tex]
Therefore the option F is correct.
The value of the tanB is root of 21/2.
To learn more about the trigonometric ratio visit:
https://brainly.com/question/24349828
Please help math 15 points plus brainly if answer
Mal works at a photo gallery. He charges $50 for a large photo and $40 for a large frame. Sales tax is 5%. How much total tax will a customer pay on both?
Answer the questions to show how to write and simplify expressions that represent the problem.
1. One way to calculate the total tax is 0.05(50 + 40). Use the order of operations to evaluate this expression.
2. Use the distributive property to expand 0.05(50 + 40).
3. Find the total tax using the expanded expression. Did you get the same answer as you did by evaluating the original expression?
4. Which expression, the original expression or the expanded expression, involves finding the total cost first, then calculating the tax on that total?
Answers
The cost of large photo after sales tax is $94.5.
Given that, Mal charges $50 for a large photo and $40 for a large frame. Sales tax is 5%.
Total cost of large photo = 50+40
= $90
Sales tax on large photo
= 5% of 90
= 5/100 ×90
= 0.05×90
= 4.5
Cost of large photo after tax = 90+4.5
= $94.5
Therefore, the cost of large photo after sales tax is $94.5.
To learn more about the sales tax visit:
brainly.com/question/27092799.
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Liza is designing a calendar as a fund-raising project for Math Class. The cost of printing
is 5000php, plus 150php per calendar. Write an equation in slope-intercept form that
models the total cost of printing the calendars.
Answers
Answer: y = 150x+5000
Step-by-step explanation:
Equation in slope-intercept form:
y= mx+c , where x= independent variable , y= dependent variable, m= slope , c= y-intercept.
Given: The cost of printing is 5000php, plus 150 php per calendar.
If x= Number of calendar and y= Cost of x calendars.
Then, m= 150 , c= 5000
Equation becomes
y = 150x+5000
New Orleans, Louisiana, is 6 feet below sea level. The highest point in Louisiana, Driskill Mountain, is 541 feet higher than New Orleans. How high is Driskill Mountain?
Answers
Answer:
541- (-6) = 547
Step-by-step explanation:
below sea level makes the number negative, so it it 547 feet higher :)
is 9/16 greater than 1/2
Answers
Answer:
Yes.
What is half if 16?
If it is greater than 1/2 it has to be greater than half of 16.
16 divided by 2
It needs to be greater than that.
Step-by-step explanation:
Problem 1: Your grades on your first three math tests were 81, 76, and 78. You have one
more test to take. What grade do you need on that last test in order to get an 80
average?
Problem 2: You have $65 in your saving account, and your brother has $140 in his savings
account. You are depositing $15 per week to your account, and your brother is depositing
$10 per week to his account. In how many weeks will you and your brother have the same
amount of money?
Answers
You need to get an 85 on your last test
Help and leave small explanation if u want to get brainliest :)
Answers
Answer:
(2,-4)
Step-by-step explanation:
(2,-4) is where the lines intercept. Across and then down.
What is 50% divided by 2?
Answers
Answer:
25
Step-by-step explanation:
50 / 2 = 25
Instead of saying 50 divided by 2 equals 25, you could just use the division symbol, which is a slash, as we did above.
Solve the following system of equations by graphing. y = –1∕2x – 2 y = –3∕2x + 2 Question 1 options: A) (3,–4) B) (4,–3) C) (–4,–4) D) (4,–4)
Answers
Answer:
B
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
I hate my math teacher this is wat she gave me
can you help mee and explained pls
( its the twelveth one plz )
Answers
Answer:
Surface Area of the box is 190" or in.
Step-by-step explanation:
We start by determining the surface area formula for the box, which is a rectangular prism:
S = 2(l*w+w*h+l*h), where S = surface area of rectangular prism, l = length, w = width, and h = height.
Since length = 7", width = 2", and height = 9", we can substitute the information given into the formula above.
S = 2((7*2)+(2*9)+(7*9))
= 2(14+18+63)
= 2(95)
= 190"
Surface Area of the box is 190" or in.
pls mark as brainliest
If the original quantity is 10 and the new quantity is 11, what is the percent increase?
The percent increase is
%
Answers
Answer: 10% increase
Step-by-step explanation: c= x2 - x1 / x1
Plug in the numbers, 11-10 / 10
Solve, 1/10
Equal to 10%
mr andys class needs 7000 dollars to buy a graphing calculator.on friday they saved $1750. on monday the students brought in 380 more. how much more money dose the class need to save to buy the calculator.
Answers
Answer:
it will be 4770 more.
Step-by-step explanation:
because 7000-1750 is 5250 subtract 380 from that you get 4770.
Pls, Help!
25 Points!
TY!!!
Answers
Answer:
First choice, 0
Step-by-step explanation:
y - intercept is where the line intercepts on the y-axis. Ans as u can see it's touching 0 so yea.
There are 20 nickels in one dollar. a. Write an equation to find the number of nickels in any number of dollars
Answers
Answer:
20x=?
Step-by-step explanation:
x= the dollar amount
Based on the picture above, select the correct angle pair for <3 and <5
Answers
Step-by-step explanation:
there is no picture above so we can't know what's possibly in the picture if you make another text or actually put the picture up there we could probably solve it
HELP!!!!!!!!!!!!!!!!!!!!
Answers
Find the perimeter of a rectangle that has a length of x+ 3 and a width of 2x +4.
A. 3x +7.
B. 6x +14
C. 4x +14
D. 5x +11
Answers
Answer:
the answer is B: 6x+14 hope this helped
FIRST TO ANSWER WITH EXPLANATION OF HOW YOU GOT IT GETS THE BRAINLIEST
Answers
Answer:
n^2
Step-by-step explanation:
boom
you can only tak n^2
22 +3=(2−1)(+1)
Pls help
Answers
A triangle with side lengths of 4, 4, and 4 units is classified as?
not a triangle
isosceles
scalene
equilateral
Answers
Answer:
equilateral because all the sides are equal
determine the type of slope of a line that goes through (-4,2), (-4,5)
Answers
Answer:
Undefined
Step-by-step explanation:
m = (5 - 2) / (-4-(-4))
m= 3/0, so the slope is undefined
What is the ratio of the number of 8 nickels to the number of 10 dimes?
Answers
Answer:
2/5
Step-by-step explanation:
start by 8*5 then 10 times 10 then simplify
Answer:
2/5
Step-by-step explanation:
A nickel is worth= 5 cents.
A dime is worth= 10 cents.
So ratio=8×5/10×10
=40/100
=2/5
So the ratio is 2/5
What value of x makes the equation true?
13 - (-9) = x
Answers
i think its x=22 but not sure
Rich has a bag of 24 markers. Each marker is 20 centimeters long. What is the combined length of the marker in meters?
Answers
Answer: 4.2 meters
Step-by-step explanation: 24×20=480
480÷100=4.8
there are 100 centimeters in a meter
how fast is a car moving that travels 120 miles in two hours?
Answers
8.702 what is the value of 2
Answers
Answer: The value of 2 is 2 thousandths.
What does reciprocal mean?
A. Use fractions to solve
B. Flip the fraction to simplity
C. Using inverse to solve for the variable
D. O Watch negatives
Answers
Answer: The answer is C
Step-by-step explanation:Reciprocal length or inverse length is a measurement used in several branches of science and mathematics. ... Quantities measured in reciprocal length include: absorption coefficient or attenuation coefficient, in materials science. curvature of a line, in mathematics. gain, in laser physics.
What is the area of the rectangle below?
Answers
Answer:
52 if im wrong sorry :(
Step-by-step explanation: