Answer:
10.5
Step-by-step explanation:
there are 2 middle values when you have an even number of data items so you must take their average
(10+11)/2 = 21/2 = 10.5
Answer:
10.5
Step-by-step explanation:
A pet store has 52 freshwater fish. Of all the fish in the store, 80% are freshwater fish. How many fish does the store have in all
plz help me understand this question thankyou
Answer:
The mistakes were on points C and D
Step-by-step explanation:
Point C was graphed on (5,8) when it's supposed to be plotted on (5,7). Point D was on (-3,-4) but was supposed to be on (-4,-3?
Answer:
The mistakes are Point C and D
Find the measure of the arc or angle indicated.
GEOMETRY
Thank you!
Answer:
89°
Step-by-step explanation:
By inscribed angle theorem:
[tex]m\angle ZXY =\frac{1}{2} \times 178\degree \\ \\ m\angle ZXY =89\degree [/tex]
Suppose in 2008 the average cost of a movie ticket in the United States was $7. If
inflation causes ticket prices to increase by 4.5% a year, in what year will a ticket cost
$25?
a. 2025
b. 2037
c. 2029
d. 2040
Answer:
B) 2037
Step-by-step explanation:
using the problem an exponential equation can be made
7(1.045)× =25
--solve for x--
x=28.9
it will take 28.9 year for the price to get to $25 so add 2008 to 28.9 to get 2036.9
2037 is closest to 2036.9 so the answer is B
Find the total number of unit cubes that fill the entire prism.
As shown in the figure below, Mary is looking at a tree that is leaning at an angle of 84º with respect to the ground. The angle
of elevation from where Mary is standing to the top of the tree is 49º. The length of the tree is 55 feet. Find the distance, x,
from Mary to the base of the tree. Round your answer to the nearest tenth of a foot.
55 ft
I feet
Х
?
84
49°
Х.
Answer:
r his
Step-by-step explanation:rfrfrefeffrefeferfeferfe
What is the slope of the line that passes through the points (5, 1) and (2, -7)?
Answer:
8/3
Step-by-step explanation:
We need to find the slope of the line that passes through points , (5,1) and (2,-7) . We can find the slope as ,
=> m = y₁ - y₂/ x ₁ - x ₂
=> m = -7 - 1 / 2 - 5
=> m = -8/-3
=> m = 8/3
Hence the slope of the line is 8/3 .Determine the center and radius of the following circle equation:
x2 + y2 – 10x + 8y + 40 = 0
Answer:
The center of this circle is (5, -4) and the radius is 1.
Step-by-step explanation:
First regroup these terms according to x and y :
x^2 - 10x + y^2 + 8y = -40
Next, complete the square for x^2 - 10x: x^2 - 10x + 5^2 - 5^2.
and the same for y^2 + 8y: y^2 + 8y + 16 - 16
Substituting these results into x^2 - 10x + y^2 + 8y = -40, we get:
x^2 - 10x + 5^2 - 5^2 y^2 + 8y + 16 - 16 = -40.
Next, rewrite x^2 - 10x + 25 and y^2 + 8y + 16 as squares of binomials:
Then x^2 - 10x + 5^2 - 5^2 y^2 + 8y + 16 - 16 = -40 becomes:
(x - 5)^2 + (y + 4)^2 - 25 - 16 = -40, or:
(x - 5)^2 + (y + 4)^2 = 1
This equation has the form (x - h)^2 + (y - k)^2 = r^2, where (h, k) is the center and r is the radius. Matching like terms, we get h = 5, k = -4 and r = 1.
The center of this circle is (5, -4) and the radius is 1.
Answer:
Center (5,-4) Radius = 1
Step-by-step explanation:
Put it in the form of the standard circle equation after dividing everything by 2. (-10x/2=-5x) (8y/2=4y) Since the radius wasn't given, it's just going to be a 1.
(x-5)^2+y(-(-4))^2 = 1^2
Hence, center (5, -4) and radius 1.
4x - 6 + x + 3
ASAP BRAINLIEST
Answer:
5x - 3
Step-by-step explanation:
Add like terms: (4x + x) + (-6 + 3) = 5x - 3
Answer:
3x-3
Step-by-step explanation:
combine like terms, 4x-x=3x and -6+3=-3
describe the error found in m<1
Answer:
The sum of all angles should be 180°
Step-by-step explanation:
Sum of all angles in a triangle = 180°
115° + 39° = 154°
180° - 154° = 26°
The student found 206°, lets add 206° to 154° and see what we get.
206° + 154° = 360°
Prediction : The student may have forgotten that the sum of all angles in a triangle equals 180° and not 360°
Answer: The sum of all angles should be 180°
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Find the length of the missing side b
Answer:
20 use Pythagorean theorem
Step-by-step explanation:
Find X using the image.
9514 1404 393
Answer:
x = 2
Step-by-step explanation:
The square of the tangent is equal to the product of the secant lengths to the near and far circle intersections.
(x +4)² = (2x -1)(2x -1 +9)
0 = (2x -1)(2x +8) -(x +4)² = (4x² +14x -8) -(x² +8x +16)
0 = 3x² +6x -24 = 3(x² +2x -8) = 3(x +4)(x -2)
This has solutions x = -4 and x = 2. Only the latter works in this geometry.
x = 2
Can someone plz help me on this plz I beg u
Answer:
A) 6"
Step-by-step explanation:
set up a proportion then cross-multiply:
1"/4.5' = x/27'
4.5x = 27
x = 27/4.5
x = 6"
What is the numerator called in a percent problem? What is the denominator called in a percent problem ?
PLEASE I NEED HELP NOW!!!
Answer:
A percentage or percent for short is a fraction; a fraction that always has the denominator as 100. Because the denominator of a percent is always a 100, no matter what the numerator is, we replace 100 with the percent symbol % after the number. By definition, for any number x, x% = x100.
Step-by-step explanation:
A computer gererates 80 integers from 1 to 5 at random. The results are recrded in the table. What is the experimental probability of the computer generating a 2?
What is the explicit formula for this arithmetic sequence?
-11, -18, -25, -32, ...
Answer:
-7
Step-by-step explanation:
If you look at the first number,count how many in between the next number and the one after that.
Which statement about the number 726,483.19 is true?
Answer:
It is a number with 6 whole numbers and 2 decimals, Its a Hundred thousand number
Step-by-step explanation:
Question 20 *
The principal of a school will distribute money from the school's budget to three sports:
cricket, track and field, and netball in the ratio 4:3:2. If the total budget for the three
sports is $1.800.000, how much money will go to netball?
$200,000
B. $400.000
C. $600,000
D. $900.000
А
B
C
Answer:
B
Step-by-step explanation:
2/9th of the money does to netball
2/9 of 1800 is 400
Answer:b
Step-by-step explanation:
Find the exact volume of the cylinder. 8mm. 8mm
Answer:
V≈2.14×106
Step-by-step explanation:
i looked up volume of a cylinder, do the same.
A car radiator needs a 40% antifreeze solution. The radiator now holds 14 liters of a 30% solution. How many liters of this should be drained and replaced with 100% antifreeze to get the desired strength?
Answer:
2.03 liters of 30% antifreeze should be drained and replaced with 100% antifreeze to get the desired strength.
Step-by-step explanation:
Since a car radiator needs a 40% antifreeze solution, and the radiator now holds 14 liters of a 30% solution, to determine how many liters of this should be drained and replaced with 100% antifreeze to get the desired strength the following calculation must be performed:
100 x 0.3 + 0 x 1 = 30
90 x 0.3 + 10 x 1 = 37
85 x 0.3 + 15 x 1 = 40.5
86 x 0.3 + 14 x 1 = 39.8
85.8 x 0.3 + 14.2 x 1 = 39.94
85.7 x 0.3 + 14.3 x 1 = 40.01
85.71 x 0.3 + 14.29 x 1 = 40
100 = 14
14.29 = X
14.29 x 14/100 = X
200.06 / 100 = X
2.03 = X
Therefore, 2.03 liters of 30% antifreeze should be drained and replaced with 100% antifreeze to get the desired strength.
write an equation for (2,7) (3,4)
Answer: y=-3/1x+13
Step-by-step explanation: I just graphed the two points then found there slope and then I finished the line with the slope and then when I knew what was the y-intercept I finished the problem
How does this geometry look before I email it to my teacher ??
Answer:
it looks pretty nice
Step-by-step explanation:
The charity gala costs $5.17 for every attendee. How many attendees can there be, at most, if the budget for the charity gala is $77.55?
Answer:
15 people are able to be at the charity gala because 77:55 divided by 5:17.
A rectangular prism has a volume of 1,200 cubic units. The prism has a length of 24 units and a
height of 5 units. What is the width of the prism?
A:20 units
B:5 units
C:10 units
D:15 units
A parallelogram has a top edge with measure 67 and a left edge with measure 60 feet. a dashed segment measures 52 feet with an endpoint on the upper left vertex and perpendicular to the bottom edge of the parallelogram.
PLS HELP I DONT KNOW IT
Answer:
D
Step-by-step explanation:
Since the side length of the square is (2x+5), and squares have equal sides, then you have to do (2x+5)(2x+5). You would get 4x^2+20x+25. That means the answer is D.
Hope this helped!! :D
Moe painted the lid of the barrel. The circumference of the lid is 32π inches. What is the area of the lid in square inches?
Answer:
A ≈ 81.487 in²
Step-by-step explanation:
You know that circumference is C = 2πr, where r is the radius.
So,
C = 2πr
32 = 2(3.14)r
r ≈ 5.093 in
We also know that the formula for the area of a circle is A = πr², so:
A = πr²
A = (3.14)(5.093)²
A ≈ 81.487 in²
Find the area of each figure below. Round to the nearest hundredth when necessary. 9.6 25.4 m 12 m 10 m
Find the area of a square with a length of 3.5 centimeter
Answer:
12.25 cm²
Step-by-step explanation:
(3.5 cm)² = 12.25 cm²
so confused on thisss
Answer:
2rootover5
Step-by-step explanation:
just use pythagoraus theorem
Answer:
x ≈ 4.5
Step-by-step explanation:
First, use the Pythagorean theorem to find the missing variable with side 8 and hypotenuse 10.
a² + b² = c²
a² + 8² = 10²
Square the variables
a² + 64 = 100
Subtract 64 from both sides.
a² = 36
Take the square root of both sides.
a = 6.
Now we can find the other triangle and we now know that one side is 4 and the hypotenuse is 6.
a² + b² = c²
x² + 4² = 6²
Square the variables.
x² + 16 = 36
Subtract 16 from both sides.
x² = 20
Square root. (refresh if you don't see this part.)
[tex]x=\sqrt{20}\\\text{Factor out a 2.}\\x=2\sqrt{5}[/tex]
Converted to decimal to the nearest tenth, the answer is
x = 4.5.
Now let's prove it.
[tex]a^2+b^2=c^2\\\text{Substitute variables.}\\(2\sqrt{5})^2+4^2=6^2\\\text{Factor the 2 in.}\\(\sqrt{20})^2+4^2=6^2\\\text{Square the variables.}\\20+16=36\\\text{Add.}\\36=36[/tex]