Which figure has rotational symmetry? Question 21 options: a) butterfly b) chalkboard c) half of an apple
Answers
Answer:
B) Chalkboard.
Step-by-step explanation:
Ok, so basically you need to know what rotational symmetry is. Rotational symmetry is the property a shape has that when rotated some amount of degrees less than 360, it looks the same as it was without being rotated at all.
So, basically it means that the figure can be rotated and it will look as though it hasn't been rotated at all.
Starting off with the butterfly, it is clear that even when rotated it will never look the same as it was without being rotated (you can click on the image rotation function to see this).
Next, looking at the chalkboard, it is obvious that when rotated 180 degrees, it will look the same as it looked without being rotated (click the rotate image button twice). So, this will be our answer.
Related Questions
Simplify: $x(3x^2-2)-5(x^2-2x+7)$. Express your answer in the form $Ax^3+Bx^2+Cx+D.$
Answers
Answer:
3x^3-5x^2+8x-35
Step-by-step explanation:
ABCD is a parallelogram.
Given that,
DC = CE
prove that,
area of the ADE triangle is equal to the area of the parallelogram.
need explanation
plzz help!!
will give the brainliest!!
Answers
Answer:
Step-by-step explanation:
We khow that ABCD is a parallelogram so its area is the product of the base (DC) and the the height
Let H be the height of the paralellogram and A its area So A= DC*HADE is a triangle . Its area is the product of the height and the base(DE) over 2
We notice that the paralellogram and the triangle have both the same height Let S be the area of the triangle S= (DE*H)/2= DE/2 *H = DC *HSo the triangle and the parallelogram have the same area
Please find the length of the segment!!!
Answers
Answer:171.5
Step-by-step explanation:
7=✓3.5*x
49=3.5 x
x=48/3.5
x=48*35/10=24*35/5=24*7=168
AW=168
LW=3.5+168=171.5
The circumference of a circle is 60π cm. What is the radius of the circle
Answers
Answer:
15 cm
Step-by-step explanation:
Circumference of circle= 2πr, where r us the radius of the circle.
Given that the circumference of circle is 60πcm,
60π= 2πr
Divide by 2 on both sides,
15π= πr
Divide by π on both sides,
15= r
Thus, radius of circle= 15cm.
write the inequality shown by the shaded area
Answers
Answer: y≤ [tex]\frac{7}{3}x+2[/tex]
Step-by-step explanation:
Since we are given the equation, all we have to do is to fix the inequality. We have four options: <, >, ≤, and ≥. The line in the graph is a solid line. This means the line reaches and is equal to the points on the line. We can automatically eliminate ≤ and ≥. Now, we know the answer is ≤. The shading shows that the answer is less than 7/3x+2. In other words, y≤ [tex]\frac{7}{3} x+2[/tex].
Which equation is true if the perimeter of the rectangle is 60? A rectangle with a length of 3 x minus 2 and width of x + 5. x + 5 = 3 x minus 2 (x + 5) + (3 x minus 2) = 60 2 (x + 5) + 2 (3 x minus 2) = 60 2 (3 x minus 2) minus 2 (x + 5) = 60
Answers
Answer: 2 (x + 5) + 2 (3 x minus 2) = 60
Step-by-step explanation:
Hi, to answer this question we have to analyze the information given:
Length = 3 x minus 2
Width = x + 5.
Since:
Perimeter of a rectangle = 2 length +2 width
Replacing with the values given:
60 = 2 ( x+5)+ 2 (3x minus 2 )
So, the correct option is:
2 (x + 5) + 2 (3 x minus 2) = 60
Feel free to ask for more if needed or if you did not understand something.
The correct one is option C.
Good luck!!!
Find the perimeter of the shaded region. Round your answer to the nearest hundredth.
Answers
Answer:
20.56 units.
Step-by-step explanation:
Perimeter of the shaded region is the sum of all straight sides and all 4 arcs.
Perimeter of 4 straight sides [tex]=4\times 2=8\text{ units}[/tex]
Perimeter of a arc [tex]=\dfrac{1}{4}\times 2\pi r[/tex]
Perimeter of 4 arcs [tex]=4\times \dfrac{1}{4}(2\pi r)=2\pi r[/tex]
Here, r is the radius. So,
[tex]r=\dfrac{6-2}{2}=\dfrac{4}{2}=2[/tex]
Perimeter of 4 arcs [tex]=2(3.14)(2)=12.56[/tex]
Perimeter of the shaded region = Perimeter of all straight sides + Perimeter of all 4 arcs
[tex]=8+12.56[/tex]
[tex]=20.56\text{ units}[/tex]
Therefore, the perimeter of the shaded region is 20.56 units.
Pls help with explanation. Will give brainliest
Answers
Answer:
E - 40°
Step-by-step explanation:
Angle O = 2 × y
{Angle at center is equal to twice the angle at circumference formed by the same arc}
O = 2 × 70°
O = 140°
x + 90° + 90° + O = 360°
{Sum of angles in a quadrilateral is equal to 360°}
x + 90° + 90° + 140° = 360°
x + 320° = 360°
x = 40°
(-1)\times (-(-2)) \times (-(-(-3))) \times (-(-(-(-4)))
Answers
Answer: the answer that I got was 24
Step-by-step explanation:
I hope it’s right and it helps!
Answer:
[tex]24[/tex]
Step-by-step explanation:
[tex](-1)\times (-(-2)) \times (-(-(-3))) \times (-(-(-(-4)))[/tex]
Negative times negative is positive.
Negative times negative times negative is negative.
Negative times negative times negative times negative is positive.
[tex](-1)\times (+2) \times (-3) \times (+4)[/tex]
Multiply.
[tex]-1 \times 2 \times -3 \times 4[/tex]
[tex]= 24[/tex]
Which theorem proves that MNO = QPO?
A. SAA
B. SSS
C. ASA
D. AAA
Answers
Answer:
ASA
Step-by-step explanation:
<M is congruent to <Q
MO is congruent to QO
<MON is congruent to <QPO by vertical angles
That gives you ASA (angle-side-angle).
Determine the value of z.
Answers
Answer:
121°
Step-by-step explanation:
The sum of the a triangle's angles is 180°
so the missing angle: 180°-(87°+34°) = 59°
so z°= 180°-59°= 121°
Answer:
121º
Step-by-step explanation:
Once interior angles of a triangle sum 180º, the remaining angle is:
34º + 87º + x = 180º
x = 59º
Once ∠x and ∠z are supplementary angles (add up to 180º), ∠z = 121º
10 points and giving out brainiest!! Please help, this is pretty easy, I forgot how to do it though
Answers
Answer:
Equation of the line; y=x+3
Step-by-step explanation:
Graph the line that passes through the points (5,8) and (3,6) and determine the equation of the line.
Equation of a line: y=mx +b
Let's find the slope: [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
8-6/ 5-3= 2/2 = 1
y=x+b
Substitute the points in.
y= 8
x = 5
8 = 5+b
b= 3
The y-intercept is 3.
y=x+3
Points on the line: (-2,1) (-1,2) (0,3) (1,4) (2,5)
*ANSWER PLS TY!* The radius of a salad bowl is 11.4 inches. What is the surface area of the bowl? (Assume the bowl is half a sphere). a.) 1633.13 in2 b.) 408.28 in2 c.) 204.14 in2 d.) 816.56 in2
Answers
Answer:
The answer is A: 1633.13 is the surface area
Hope this help :)
The surface area of the bowl is 816.56 square inches if the radius of a salad bowl is 11.4 inches option (d) is correct.
What is a sphere?It is defined as three-dimensional geometry when half-circle two-dimensional geometry is revolved around the diameter of the sphere that will form.
[tex]\rm V = \dfrac{4}{3} \pi r^3[/tex]
The surface area of the hemisphere = 2πr²
The radius r = 11.4 inches
The surface area of the hemisphere = 2π(11.4)²
The surface area of the hemisphere = 259.92π square inches
or
= 816.56 square inches
Thus, the surface area of the bowl is 816.56 square inches if the radius of a salad bowl is 11.4 inches option (d) is correct.
Learn more about the sphere here:
brainly.com/question/11374994
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Question Progress
Homework Progress
3/ 18
Express the recurring decimal 0.004 as a fraction.
Answers
Answer: 1/250
Step-by-step explanation:
Given the recurring decimal : 0.004
Firstly:
Let x = 0.004 - - - (1)
Due to the number of decimals places and value of x;
We multiply (1) by 1000 to obtain an integer
Multiply (1) by 1000
1000x = 4 - - - (2)
From (2) we can solve for x and leave our answer as a fraction.
Divide (2) by 1000 to obtain the value of x
1000x / 1000 = 4 / 1000
x = 1 / 250
Recall x = 0.004
Therefore, x = 0.004 = 1/250
In triangle ABC , m angle A=(3x)^ , m angle B=(3x+10)^ , and m angle C=(4x-30)^ Find m m angle C
Answers
Answer:
B
Step-by-step explanation:
Interior angles of a triangle = 180°
3x°+3x+10°+4x-30°=180°
10x°-20°=180°
10x°=180°+20°
10x°= 200°
10x°/10=200°/10
x°=20°
Hence, the angle is [tex]x=20[/tex] degree.
What is the angle?
An angle can be defined as the figure formed by two rays meeting at a common end point.
Here given that,
As we know that the sum of interior angles of a triangle is [tex]180[/tex] degree.
[tex]3x+3x+10+4x-30=180\\\\10x-20=180\\\\10x=180+20\\\\10x= 200\\\\\frac{10x}{10}=\frac{200}{10}\\\\x=20[/tex]
Hence, the angle is [tex]x=20[/tex] degree.
To know more about the angle
https://brainly.com/question/15277238
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Which of the following is a zero of the quadratic function shown?
Answers
Answer:
(6,0)
Step-by-step explanation:
A zero of an equation is the x-intercept of the graph, meaning whenever the graph hits the x-axis. You can see that (2,0) and (6,0) are the x-intercepts, as I can see from the picture of the graph. There are other ways to solve this as well, but there is no need since the graph is provided. I hope this helps you!! Have a great rest of your day.
A restaurant menu offers four main courses: grilled chicken, hamburger, hot dog, or pasta. The menu offers three side dishes: salad, coleslaw, or fries. Lastly, the menu offers diners a selection of brownies, ice cream, or cookies as dessert. How many meal combinations are available?
Answers
Answer:
36
Step-by-step explanation:
You simply multiply the number of options per each course of the meal and get 3*4*3=12*3=36
write all factors of 72
Answers
Answer:
1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
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*DIFFICULT QUESTION, PLS ANSWER* Wrapping paper costs $0.045 per square inch. If a moving box that is an 5.5 inch cube is being wrapped, how much would the wrapping paper for this box cost (rounded to the nearest dollars and cents)?
Answers
Answer:
$8.17
Step-by-step explanation:
I got it correcty on the test.
The costs $0.045 per square inch will be $8.17. Then the correct option is B.
What is the surface area of the cube?Let the length of the cube be a.
Then the surface area of the cube will be
SA = 6a²
If a moving box that is an 5.5 inch cube is being wrapped.
Then the surface area of the cube will be
SA = 6 x (5.5)²
SA = 181.5 square inches
Then the costs $0.045 per square inch will be
Total cost = 181.5 x 0.045
Total cost = $8.1675 ≈ $8.17
Then the correct option is B.
More about the surface area of the cube link is given below.
https://brainly.com/question/13789496
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Please answer the question!
Answers
Answer:
[tex]30[/tex]
Step-by-step explanation:
Here, we will have to use [tex]LCD[/tex] or, least common denominator.
The least common [tex]LCD[/tex] here that we will be using is going to be 30. We can always make sure by multiplying.
[tex]\frac{3}{10}[/tex]*[tex]\frac{3}{3}[/tex][tex]=\frac{9}{30}[/tex]
Our final answer for the first fraction is [tex]\frac{9}{30}[/tex] which could be simplified back to [tex]\frac{3}{10}[/tex].
For the second fraction, we will be multiplying with [tex]\frac{2}{2}[/tex].
[tex]\frac{2}{15}[/tex]*[tex]\frac{2}{2}[/tex][tex]=\frac{4}{30}[/tex].
Again, it simplifies back to [tex]\frac{2}{15}[/tex].
Hence, the [tex]LCD[/tex] is [tex]30[/tex].
Hope that helps:D
-Jazz
Which of the following correctly completes the square for the equation
below?
x2 + 4x = 27
A. (x + 2)2 = 31
B. (x + 2)2 = 43
C. (x + 4)2 = 31
D. (x+4)2 = 43
SUBMI
PREVIOUS
Answers
Answer:
A. (x + 2)^2 = 31.
Step-by-step explanation:
x^2 + 4x = 27
x^2 + 4x - 27 = 0
A. (x + 2)^2 = 31
x^2 + 4x + 4 - 31 = 0
x^2 + 4x - 27 = 0
This option corresponds to the given equation, so it is correct.
B. (x + 2)^2 = 43
x^2 + 4x + 4 - 43 = 0
x^2 + 4x - 39 = 0
This does not correspond to the equation.
C. (x + 4)^2 = 31
x^2 + 8x + 16 - 31 = 0
x^2 + 8x - 15 = 0
This does not correspond to the equation.
D. (x+4)^2 = 43
x^2 + 8x + 16 - 43 = 0
x^2 + 8x - 27 = 0
This does not correspond to the equation.
So, your answer is A. (x + 2)^2 = 31.
Make sure to SUBMIT and check your PREVIOUS answers to make sure they are right! XD Also, hope this helps!
Drag the tiles to the correct boxes to complete the pairs.
Match the subtraction expressions with their answers,
1
2
1
a203 ad
1
ad2438
2.
2383a203
adora
aaga
a2b
a282
gბებ
2 - ab
a288
Answers
his is confusing
explanation:
Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels at 85 miles per hour. The westbound train
travels at 75 miles per hour. How long will it take for the two trains to be 192 miles apart?
Do not do any rounding.
Answers
Answer:
It will take 1 hour and 12 minutes for the two trains to be 192 miles apart
Step-by-step explanation:
The total distance between the two trains is the distance traveled by both trains. The distance traveled by the eastbound train is 85 mph * elapsed time and the distance traveled by the westbound train is 75 * elapsed time.
The combined formula is distance traveled = speed of first train * elapsed time + speed of second train * elapsed time.
Since the elapsed time is equal for both trains then the formula is modified as distance traveled = (speed of first train + speed of second train) * elapsed time.
Solving for the elapsed time
distance traveled = (speed of first train + speed of second train) * elapsed time
192 miles = (85mph + 75 mph) * elapsed time
192 miles = 160 mph * elapsed time
elapsed time = 192 miles / 160 mph
elapsed time = 1.2 hours
elapsed time = 1 hour and 12 minutes
It will take 1 hour and 12 minutes for the two trains to be 192 miles apart.
Find the area of the triangle with vertices (3, 4), (8, 4), and (-6,-6).
Answers
Answer:
The area is 25 :)
Step-by-step explanation:
This Is An Obtuse scalene triangle.
Sides: a = 17.205 b = 13.454 c = 5
Area: T = 25
Perimeter: p = 35.658
Angle ∠ A = α = 131.987° = 131°59'14″ = 2.304 rad
Angle ∠ B = β = 35.538° = 35°32'16″ = 0.62 rad
Angle ∠ C = γ = 12.475° = 12°28'30″ = 0.218 rad
Height: ha = 2.906
Height: hb = 3.716
Height: hc = 10
Median: ma = 5.385
Median: mb = 10.735
Median: mc = 15.24
Inradius: r = 1.402
Circumradius: R = 11.573
Vertex coordinates: A[3; 4] B[8; 4] C[-6; -6]
Centroid: CG[1.667; 0.667]
Coordinates of the circumscribed circle: U[0; 0]
Coordinates of the inscribed circle: I[1.963; 1.402]
Exterior (or external, outer) angles of the triangle:
∠ A' = α' = 48.013° = 48°46″ = 2.304 rad
∠ B' = β' = 144.462° = 144°27'44″ = 0.62 rad
∠ C' = γ' = 167.525° = 167°31'30″ = 0.218 rad
The assessed value of a property is $ 16,000. If the tax rate is
$8/$100 of value, what is annual tax for the property?
Answers
Answer: 1280 dollars
Step-by-step explanation:
Given that the assessed value of a property is $ 16,000.
If the tax rate is $8/$100 of value. That is, 8 dollars in every 100 dollars.
Divide both value of the property by 100.
16000/100 = 160 dollars
Then, multiply it by 8 dollars
8 × 160 = 1280 dollars
The annual tax for the property is therefore, 1280 dollars.
OR
First find the rate or percentage of the tax which will be:
8/100 = 8%
Find the 8% of the value of the property which is 16000 dollars
8/100 × 16000 = 1280 dollars
Find the missing length to the attached triangle.
Answers
Answer:
x = 60
Step-by-step explanation:
Using the right triangle altitude theorem, we have 3 similar triangles.
100/x = x/36
x^2 = 3600
x = 60
* ANSWER ASAP PLS !!! * Suppose angle P is 110°. What would be the measure of arc LF? (Figure may not be drawn to scale)
Answers
Answer:
220 degrees
Step-by-step explanation:
An inscribed angle is always one-half the measure of either the central angle or the intercepted arc sharing endpoints of the inscribed angle's sides.
Graph the line: a through the point (3,2) with a slope of −2. PLEASE HELP ONLY 20 MINS LEFT
Answers
Answer:
y = -2x + 8
Step-by-step explanation:
The slope is given, and if we plug in 2 and 3 for y and x respectively, we can solve to get b=8. When graphed, it looks like the picture below.
PM is the median of trapezoid KLNO. If ON= 30 centimeters and KL= 20 centimeters, which is the length of PM?
A. 22cm
B. 25cm
C. 26cm
D. 28cm
Answers
A car is known to be 88% likely to pass inspection at a certain Motor Vehicle Agency inspection office. What is the probability that at least 90 cars pass inspection if a random sample of 100 cars is taken at this Motor Vehicle Agency inspection office? A. 0.4032 B. 0.6663 C. 0.3337 D. 0.88
Answers
Answer:
The correct option is;
C. 0.3337
Step-by-step explanation:
We note that for a binomial probability distribution, we have;
[tex]p(r\geq \gamma)=\sum_{\gamma = r}^{ n}\dbinom{n}{r}\cdot \left (p\right )^{\gamma }\cdot \left (1-p\right )^{n - \gamma}[/tex]
Which gives;
[tex]p(x \geq 90)=\sum_{r = 90}^{ 100}\dbinom{100}{90}\cdot \left (0.88\right )^{\gamma }\cdot \left (1-0.88\right )^{100 - \gamma}[/tex]
[tex]\dbinom{100}{90}\cdot \left (0.88\right )^{90 }\cdot \left (1-0.88\right )^{10} = 0.108033[/tex]
[tex]\dbinom{100}{91}\cdot \left (0.88\right )^{91 }\cdot \left (1-0.88\right )^{9} = 0.08706[/tex]
[tex]\dbinom{100}{92}\cdot \left (0.88\right )^{92 }\cdot \left (1-0.88\right )^{8} = 0.062456[/tex]
[tex]\dbinom{100}{93}\cdot \left (0.88\right )^{93 }\cdot \left (1-0.88\right )^{7} = 0.039399[/tex]
[tex]\dbinom{100}{94}\cdot \left (0.88\right )^{94 }\cdot \left (1-0.88\right )^{6} = 0.021516[/tex]
[tex]\dbinom{100}{95}\cdot \left (0.88\right )^{95 }\cdot \left (1-0.88\right )^{5} = 0.09965[/tex]
[tex]\dbinom{100}{96}\cdot \left (0.88\right )^{96 }\cdot \left (1-0.88\right )^{4} = 0.003806[/tex]
[tex]\dbinom{100}{97}\cdot \left (0.88\right )^{97 }\cdot \left (1-0.88\right )^{3} = 0.001151[/tex]
[tex]\dbinom{100}{98}\cdot \left (0.88\right )^{98 }\cdot \left (1-0.88\right )^{2} = 0.000258[/tex]
[tex]\dbinom{100}{99}\cdot \left (0.88\right )^{99 }\cdot \left (1-0.88\right ) = 0.0000383[/tex]
[tex]\dbinom{100}{100}\cdot \left (0.88\right )^{100 }\cdot \left (1-0.88\right )^{0} = 0.00000281[/tex]
P(r≥90) is therefore 0.1083 + 0.08706 + 0.062456 + 0.039399 + 0.021516 + 0.09965 + 0.003806 + 0.001151 + 0.000258 + 0.0000383 + 0.00000281 = 0.333685 ≈ 0.3337.