Answer: 31.4 mm
Step-by-step explanation:
C=2πr
2(3.14)(5)
2(15.7)
31.4
Joey is buying a new couch for his living room. The couch costs $379.00. He has a choice of using a coupon for 5% off before taxes, getting a rebate of $20 after taxes, or getting a discount of $18 before taxes. If the sales tax rate is 8%, which option is the better deal?
Answer:
rebate of 20 after taxes
Step-by-step explanation:
Answer:
rebate of 20 after taxes
Step-by-step explanation:
63, 70, 68, 73, 58, 67. What is the mean absolute deviation for these numbers?
Answer:
66.5
Step-by-step explanation:
what is the image of the point (-1,-4) after rotation of 90 degrees counterclockwise
Answer:
(4,1)
Step-by-step explanation:
The mapping is (x, y)=(-y,- x)
(-1,-4)=(4,1)
The 90° counterclockwise is(4,1)
Mark the brainiest if correct
Raw cake batter starts at a thickness of 2 centimeters in a pan but but grows at 0.15 centimeters every minute in the oven. How tall will the cake be after a certain numbers of minutes?
does the point ( 2, 1 ) satisfy the equation y = 2x?
Answer:
No.
Step-by-step explanation:
Y=2x goes up twice and to the right once, it passes through the origin, therefore it won't touch or go pass by point (2,1)
What is the solution set of the quadratic inequality x^2+x-2 ≥ 0
{x| x ≤ -2 or x ≥ 1}
{x| x ≤ -1 or x ≥ 2}
{x| x ≥ -2 or x ≤ 1}
{x| x ≥ -1 or x ≤ 2}
y=1/3 x^2+2x+5
what is the minimum value of this equation
Answer:
Min: (-3,2)
Hope this helps!!
Find the inverse of each of the given functions.
f(x) = 4x - 12
HELP! Find the area of the parallelogram the figure is not drawn to scale
The area of the parallelogram in the diagram given is: 1,330 in.²
What is the Area of a Parallelogram?Area of a parallelogram = (base × height)
Given the following dimensions of the parallelogram:
Base = 38 in.
Height = 35 in.
Area of the parallelogram = 38 × 35
Area of the parallelogram = 1,330 in.²
Learn more about the area of a parallelogram on:
https://brainly.com/question/3050890
Does -6^2 = (-6)^2? Explain your answer.
PLEASE HELP!!!!!!!
Answer:
No it doesn't
You see when something is in parenthesis () that means it isolated as a whole. When it says (-6)^2 that means Negative six squared. When it says -6^2 that means only the 6 will be squared since they are not parenthesized. So by isolating the two figures both of those numbers together will be squared whereas when they arent isolated only one of them will be squared.
(-6)^2 = -6 x -6 = 36
-6^2= - x 6 x 6= -36
Answer:
-6^2 is same as (-6)^2
Therefore, - 6^2 is - 6×-6 WHICH IS EQUALS TO 36
(-6)^2 = - 6×-6=36
36=36 is the answer.
Determine the measure of x and the exterior angle.
X =
Exterior Angle =
3x + 25°
20°
X + 550
Answer:
x=65°
Step-by-step explanation:
Since all exterior angles add up to 360°.
⇒(3x+25°) + (20°) + (x+55°) =360°
⇒4x+100°=360° {Add up like terms}
⇒4x=260° {Subtract 100 from both sides}
∴ x=65° {Isolate x (divide both sides by 4)}
I hope this helped you with your math problem but more especially with understanding how to solve.
Jay tossed two coins several times and then
recorded the results in the table below.
Coin Toss Results
Toss 1
H;H
Toss 2
H;T
Toss 3
T;T
Toss 4
T;T
Toss 5
T;H
What is the experimental probability that
the coins will land on different sides on his
next toss?
A.1/5
B.2/5
C.3/5
D.4:5
Answer: I'm pretty sure that the answer is a
Hope this helps :)
Step-by-step explanation:
pls help and neatly show work !!
Answer:
see explanation
Step-by-step explanation:
The zeros of the graph are x = - 4 and x = 2 , then the factors are
(x + 4)(x - 2) and
y = a(x + 4)(x - 2) ← a is a multiplier
To find a use any other point on the graph and substitute into the equation
Using (0, - 8 ) , then
- 8 = a(4)(- 2) = - 8a ( divide both sides by - 8 )
1 = a
y = (x + 4)(x - 2) = x² + 2x - 8
with b = 2 and c = - 8
The graph is increasing from the turning point ( vertex) to the right
vertex = (- 1, - 9 )
Increasing in the interval [- 1, ∞ )
PLZ HELP! AND NO LINKS I will mark the brainiest to whoever can answer this!!!!!!!!
Answer:
A. 7
Step-by-step explanation:
The rest of the numbers are in the 20's and 30's. 7 is obviously a single digit number, meaning that it is the outlier.
Use point-slope form to write the equation of the line with a slope of 5/2 that goes through the point (-3,-6).
Answer:
4, (2,-4)
m= 5,(1,)
3,( 2,9)
Answer:
[tex]y+6=\frac{5}{2} (x+3)[/tex]
Step-by-step explanation:
point-slope formula: [tex]y-y_1=m(x-x_1)[/tex]
where m = slope and the point would be [tex](x_1,y_1)[/tex]
point-slope form: [tex]y+6=\frac{5}{2}(x+3)[/tex]
If you want to learn more about point-slope form,
Go to: https://www.albert.io/blog/point-slope-form/#What_is_point_slope_form
Ms. Thompson is baking bread. The recipe calls for 6.5 cups of flour. She has already put in 2 cups.
How many more cups does she need to put in?
Answer:
4.5 cups flour
Step-by-step explanation:
6.5 - 2 = 4.5
8. What is the surface area of the pyramid
shown below?
Answer:
Surface area of square pyramid = 380 m²
Step-by-step explanation:
Given:
Side of square base =10 m
Height of Square pyramid = 14 m
Find:
Surface area of square pyramid
Computation:
Surface area of square pyramid = Surface area of Base + 4[Surface area of triangle]
Surface area of square pyramid = [side x side] + 4[(1/2)(b)(h)]
Surface area of square pyramid = [10 x 10] + 4[(1/2)(10)(14)]
Surface area of square pyramid = 100 + 4[70]
Surface area of square pyramid = 100 + 280
Surface area of square pyramid = 380 m²
Please help with Volume
Given:
Length of the cuboid tank = 4 m
Breadth = 2.5 m
Height = 2.4 m
One third of the tank is filled with water.
1 cubic meter = 1000 liters.
To find:
The quantity of the water in the tank.
Solution:
Volume of a cuboid is:
[tex]V=l\times b\times h[/tex]
Where, l is length, b is breadth and h is the height.
The volume of the tank is :
[tex]V=4\times 2.5\times 2.4[/tex]
[tex]V=24[/tex]
Volume of tank is 24 cubic meter.
One third of the tank is filled with water. So, the volume of the water is
[tex]\dfrac{24}{3}=8[/tex]
The volume of water is 8 cubic meters.
We have,
1 cubic meter = 1000 liters.
8 cubic meter = 8000 liters.
Therefore, the quantity of the water in the tank is 8000 liters.
The area of a square playground (in square feet) can be represented by x2 - 30x + 225. How many feet is the perimeter of the playground if x = 25?
Answer:
40
Step-by-step explanation:
Substitute 25 for x
[tex] {25}^{2} - 30(25) + 225 = 100[/tex]
100 is the area of the square so that means
10 is the side length of each side of the square.
Multiply 4 by 10 to get the perimeter.
[tex]4 \times 10 = 40[/tex]
write the equation, please.
Answer:
x^2+y^2 = 49
Step-by-step explanation:
This is a circle.
The generic equation of a circle is
(x-h)^2+ (y-k)^2 = r^2
where (h,k) is the center and r is the radius
The center of the circle is at the origin which is (0,0)
The radius is 7
(x-0)^2+(y-0)^2 = 7^2
x^2+y^2 = 49
Answer:
[tex] \displaystyle {x}^{2} + {y}^{2} = 49[/tex]
Step-by-step explanation:
we are given a circle
we want to figure out the equation of the circle
remember that,
[tex] \rm \displaystyle E _{c} : (x - {h)}^{2} + (y - k {)}^{2} = {r}^{2} [/tex]
(h,k) are the centre of the circle
we can clearly see that the centre of the circle is (0,0) and the redious is 7 units
thus substitute:
[tex] \displaystyle (x - {0)}^{2} + (y - 0{)}^{2} = {7}^{2} [/tex]
further simplification is needed:
[tex] \displaystyle {x}^{2} + {y}^{2} = 49[/tex]
and we are done!
Juan ran the lemonade stand for 3 more days after his
first day profit of $12. Each day, he used the money
from sales to purchase more lemons, cups, and sugar
to make more lemonade. The table shows how much
he spent and earned each day
What is the expression needed to find his total
eamings?
52
16-7-22 - 12 - 18-9
16-22-18-7-12-9
16-22-18-7-12-9
16 - 7 + 22-12-18-9
The answer: C/16 + (–7) + 22 + (–12)
What are my zeros (x^2 - 8x + 1)?
Answer:
x= 7.87298334621 x=.12701665379
Step-by-step explanation:
This is in standard form so we have to factor this into
x^2-8x + 16 + 1 = 16
(x-4)^2 = 15
(x-4) = [tex]\sqrt{15\\}[/tex]
x-4= ± 3.87298334621
x-4 = 3.87298334621 x-4= -3.87298334621
x= 7.87298334621 x=.12701665379
I This correct? I don’t fell confident about it and it’s worth 100 points if a did a mistake pls help me fix it and explain?
Using the graph, determine the coordinates of the vertex of the parabola
Answer:
The vertex is (3,1)
Step-by-step explanation:
Answer:
(3, 1)
Step-by-step explanation:
Locate the vertex. Here it represents the maximum value of this quadratic function. The x-coordinate shown is 3 and the y-coordinate is 1. Thus, the vertex is (3, 1).
PLS HELP ME WILL GIVE BRAINLIEST
Answer:
31.2
Step-by-step explanation:
Hope it helps !!:)
Find the exact value of each trigonometric function using the unit circle
Answer:
Step-by-step explanation:
use the co-terminal idea Scarlett, 990° = 270 °. You can see this just by looking at the picture.
Tan(270 ) = sin(270) / cos(270) = -sin(90) / cos(90) so now we know that Tan(270) is one of the non-existant angles b/c cos(90) = 0 and that would mean that we have some number over 0... and then the universe blows up.. like my calc II professor liked to say :| I think he was being a bit dramatic. :P anyway, you want answers not long boring stories.. :D so Tan(270) DNE ( does not exist )
If we were to look at a graph of Tan , we'd see that at 270° or 3[tex]\pi[/tex]/2 , Tan runs off to infinity. So there isn't a number to represent it. :/ I'm attaching a picture of the graph
notice in the graph, that when tan gets to 3/2, it's running off to infinity ??
At a middle school, 74 students have freckles. There are 258 students in the school. To the nearest tenth of a percent, what percent of the students have freckles?
Find the zeros of the following factored quadratic function.
f(x) = (9x - 1)(7x - 3)
Answer:
63x^2-34x+3
Step-by-step explanation:
Please help! Will give brainlist if correct. If possible pls explain how you got the answer
Answer:
30 I think
Step-by-step explanation:
Area of a triangle is (base×height) ÷2
So that means that to solve this you'd need to do 20 (the base) ×3 (the height). This gives you 60; then you divide it by 2. This gives you 30.
A regular hexagon is dilated by a scale factor of 2.5. What happens to the perimeter in this process?
Answer:
Step-by-step explanation:
perimeter of larger hexagon=2.5 perimeter of smaller hexagon