Answer:
0.5
Step-by-step explanation:
We know that 2/4 is 1/2 which is 0.5 as a decimal.
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A class has four girls and five boys. How many ways can everyone be arranged in a row, so that all four girls are next to each other?
Answer:
puting the boys side by side and the girls side by side???
Step-by-step explanation:
The length of a rectangular deck is 4 times its width. If the deck's perimeter is 30 feet, what is
the deck's area? )
Solve on paper. Then check your answer on Zearn. )
The deck's area is
square feet.
length of a rectangular deck is 4 times its width.
length = 4*width
perimeter = 30 feet = 2 ( length + width )
30 feet = 2( 4w + w)
15 feet = 5 w
w = 3 feet = width
length = 4* 3 = 12 feet
deck's area = 3 feet * 12 feet = 36 square feet
If A denotes some event, what does Ā denote? If P(A) = 0.006, what is the value of PĀ)?
What does A denote?
[tex]A[/tex] denotes some event, [tex]\overline{A}[/tex] denotes the complement of [tex]A[/tex] that is [tex]\overline{A}[/tex]contains all the events that do not occur in A.
And, the value of [tex]P(\overline{A})[/tex] is, [tex]P(\overline{A}) = 0.994[/tex]
Used the concept of probability which states that,
[tex]P (A) + P(\overline{A}) = 1[/tex]
Where, [tex]A[/tex] and [tex]\overline{A}[/tex] are events.
When [tex]A[/tex] denotes some event, [tex]\overline{A}[/tex] denotes the complement of [tex]A[/tex] that is [tex]\overline{A}[/tex]contains all the events that do not occur in A.
Given that:
P(A) = 0.006
We used the formula of probability which stated that,
[tex]P (A) + P(\overline{A}) = 1[/tex]
Where, [tex]A[/tex] and [tex]\overline{A}[/tex] are events.
Substitute [tex]P (A) = 0.006[/tex] into the above formula,
[tex]0.006 + P(\overline{A}) = 1[/tex]
Subtract 0.006 on both sides,
[tex]P(\overline{A}) = 1 - 0.006[/tex]
Therefore, the value of [tex]P(\overline{A})[/tex] is,
[tex]P(\overline{A}) = 0.994[/tex]
So, If [tex]A[/tex] denotes some event, [tex]\overline{A}[/tex] denotes the complement of [tex]A[/tex].
And, [tex]P(\overline{A}) = 0.994[/tex]
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Use the shell method to compute the volume (CALCULUS HELP!!!)
Use the shell method. The volume is
V = 2π ∫₅⁸ (x - 5) x ² dx
V = 2π ∫₅⁸ (x ³ - 5x ²) dx
V = 2π (1/4 x ⁴ - 5/3 x ³) |₅⁸
V = π/6 (3x ⁴ - 20x ³) |₅⁸
V = π/6 ((3 × 8⁴ - 20 × 8³) - (3 × 5⁴ - 20 × 5³))
V = 891π/2
find the volume of the following square pyramid. geometry
Answer:
Volume of a pyramid = lwh /3 ==12/3==4
i need help! please and thank you
Answer:
[tex]20\pi[/tex] m
OR
62.8318531 m
Step-by-step explanation:
This is actually pretty simple
The distance the tip travels is the arc length and the length of the pendulum is the radius of a circle
The formula for arc length is Angle in Radians x Radius
So pi/12 * 4 = pi/3 m
We know this is how much it travels every second so it is going at pi/3 m/s
One minute is 60 seconds
pi/3 * 60 = 20pi m
Use the table of values to estimate
9514 1404 393
Answer:
-7
Step-by-step explanation:
The limit from the left appears to be -7.
The limit from the right appears to be -7.
The left and right limits are the same, so the limit exists and is about -7.
Please help me thanks! :)
Answer:
eyjdnfbhs
Step-by-step explanation:
Find the surface area of the prism below.
SA= square meters
Answer:
The surface area is 98 square feet.
Step-by-step explanation:
7 x 4 = 28
28 x 3 = 84
4 x 3.5 = 14
14 / 2 = 7
7 x 2 = 14
84 + 14 = 98
Complete the square
to find the vertex
of this parabola.
72-82+2y+17=0
(2, [?])
Answer:
-1
Step-by-step explanation:
Complete the square to find the vertex of this parabola y^2-8x+2y+17=0 {The second answer is -1; so 2,-1 }
Reflect (8,9) across the x-axis. Then reflect the result across the y-axis. What are the coordinates of the final point?
Answer:
final point is (-8,-9)
Step-by-step explanation:
when u relfect 8,9 over the x axis u get 8,-9 because relfetion of x axis= (x,-y) but the question asks u to relfect that over the y axis which is (-x,y) and u get (-8,-9)
A coordinate system in geometry is a system that employs one or more integers, or coordinates, to define the position. The final coordinates of the point will be (-8,-9).
What are coordinates?A coordinate system in geometry is a system that employs one or more integers, or coordinates, to define the position of points or other geometric components on a manifold such as Euclidean space.
When the point (8,9) is reflected along the x-axis, the new coordinates will be (-8,9). Reflecting the result across the y-axis, we will get (-8,-9).
Hence, the final coordinates of the point will be (-8,-9).
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Is 5/3 and 7/9 a similar fraction?
Answer:
No
Step-by-step explanation:
write the standard equation of the circle with the given Center and radius:
i would love help on this
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Answer:
B. (x +4)² +(y +5)² = 64
Step-by-step explanation:
The equation for a circle with center (h, k) and radius r is ...
(x -h)² +(y -k)² = r²
Filling in your given values, you have ...
(x -(-4))² +(y -(-5))² = 8²
Simplifying, you get ...
(x +4)² +(y +5)² = 64 . . . . . . . matches choice B
_____
Additional comment
As you learn more different "standard form" equations, it may be helpful to keep a list, along with reminders of what the variables stand for and how the equation is used.
what a hypothesis in science
Jenny is x years old. Thomas is 3 times as old as her. Jenny is 5 years older than Alexis.
A) Find Alexis's age in terms of x
B) Find Thomas's age in terms of x.
C) If x=12, how much older is Thomas than Jenny?..
Answer:
A) Alexis is x-5 years old
B) Thomas is 3x years old
C) Thomas is 24 years older than Jenny (3×12=36 ; 36-12)
Alexis's age is x - 5.
Thomas's age is 3x.
Thomas is 24 years older than Jenny.
What is an expression?An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
A)
Jenny = x years old
Alexis = 5 years younger than Jenny.
So,
Alexis's age in terms of x.
Alexis's age
= Jenny's age - 5
= x - 5
B)
Thomas = 3 times as old as Jenny.
Thomas's age in terms of x.
Thomas's age = 3x
C)
x = 12,
Jenny = 12 years old.
Alexis = 5 years younger than Jenny,
So,
Alexis's age
= Jenny's age - 5
= 12 - 5
= 7
Now,
Thomas = 3 times as old as Jenny.
And,
Jenny = 12 years old.
Thomas's age
= 3x
= 3 x 12
= 36
Now,
Thomas's age - Jenny's age
= 36 - 12
= 24
Therefore,
Alexis's age = x - 5.
Thomas's age = 3x
Thomas is 24 years older than Jenny.
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Ella and 3 friends are going ice skating. They hire 4 pairs of ice skates for 3 hours. The formula below is for working out the cost of hiring the stakes including a deposit.
C=s(3h+5)
C
= total cost
s
= number of pairs of ice skates
h
= number of hours
How much will it cost to hire 4 pairs of ice skates?
s = 4
h = 3
C = ?
C = s(3h + 5)
C = 4(3·3 + 5)
C = 4(9 + 5)
C = 4(14)
C = ?
ANSWER: It costs 56 dollars
A school is arranging a field trip to the zoo. The school spends 541.31 dollars on passes for 34 students and 3 teachers. The school also spends 299.54 dollars on lunch for just the students. How much money was spent on a pass and lunch for each student?
s – 34% Americano, 21% Cappuccino, 14% Espresso, 11% Latte, 10% Macchiato, 10% Other. In a random sample of 450 customers, he finds that 115 ordered Americanos, 88 ordered Cappuccinos, 69 ordered Espressos, 59 ordered Lattes, 44 ordered Macchiatos, and the rest ordered something in the Other category. Run a Goodness of Fit test to determine whether or not drink preferences have changed at his coffee shop. Use a 0.05 level of significance. Americanos Capp. Espresso Lattes Macchiatos Other Observed Counts 115 88 69 59 44 75 Expected Counts 153 94.5 63 49.5 45 45 Enter the p-value - round to 5 decimal places. Make sure you put a 0 in front of the decimal. P-value =___
Answer:
0.000005178
Step-by-step explanation:
we test for the goodness of fit
h0; drink preferences not changed
h1: drink preferences changed
alpha = 0.05
we solve for the test statistics
the chsquare test was performed in the attachment
Chi square = (O-E)²/E
chisquare = 32.30188
degree of freedom = n -1 = 6-1 = 5
using the chi distribution function on excel i calculated the p value
CHIDIST(32.30188, 5) =
P-value = 0.000005178
pvalue is less than 0.05 so we reject null hypothesis and conclude that there is sufficient evidence that drink preferences are changed.
the chisquare calculation is in the attachment. Thank you!
Find the area of each figure.Round to the nearest tenth if necessary square 17.6mm
Answer:
309.8 mm² (nearest tenth)
Step-by-step explanation:
[tex]\boxed{area \: of \: square = side \times side}[/tex]
Given that the side of the square is 17.6mm,
area of square
= 17.6 ×17.6
= 309.76
= 309.8 mm² (nearest tenth)
Rowanda jogged 2.13 kilometers farther than Terrance.
Select the values that could represent how far each student jogged.
Select all that apply.
A Rowanda: 6.9 km, Terrance: 4.77 km
B Rowanda: 4.7 km, Terrance: 2.67 km
C Rowanda: 7.27 km, Terrance: 5.14 km
D Rowanda: 3.52 km, Terrance: 1.49 km
Answer:
A and C
Step-by-step explanation:
Write 45.21% as a decimal.
Answer:
0.4521
Step-by-step explanation:
Answer:
0.4521
Hope this helps! :)
stimulus check summary please help me please
Answer: I think it’s great but you should make a stronger opinion and always have back up evidence
Step-by-step explanation:
Pls help asap will gibe brainlist
Answer:
✧ First , I splited the given figure into three parts namely ABCD , EFGH & lastly IJKL ( See the attached picture). Now , We're gonna find out the area of these rectangles :
Area of ▭ ABCD = Length × Breadth = 12 × 8 = 96 in²Area of ▭ EFGH = Length × Breadth = 13 × 4 = 52 in²Area of ▭ IJKL = Length × Breadth = 12 × 6 = 72 in²♨ Now , Adding the area of ▭ ABCD , ▭ EFGH & ▭ IJKL :
☂ Total Area of the figure : 96 in² + 52 in² + 72 in² = [tex] \boxed{ \large{ \underline{ \tt{220 \: {in}^{2} }}}}[/tex]
☄ Hope I helped! ♡
♪ Have a wonderful day / night ! ♕
✎ [tex] \underbrace{ \overbrace{ \mathfrak{Carry \: On \:Learning}}}[/tex] ☃
▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁
what is the square unit of 5,469
Answer:
29909961
................
The rule in this pattern is add 3. Write the next 4 terms of the pattern. What do you observe about the terms in the pattern? Explain why you think this pattern will continue to be this way.
An image of a pattern. Term one has five dots, term two has eight dots, term three has eleven dots. (4 points)
Describe how you would convince a friend that sin(x + y) does not equal sin x + sin y.
via Edge
Answer:
By showing an example of ditributive property against addition.
Step-by-step explanation:
Let's say:
x = 5
y = 10
sin = 4
let's plug it in:
sin(x + y)
4(5 + 10) Let's solve:
20 + 40 = 60
Let's see if we get the same result:
5 + 10 = 15.
Not even close.
Which could be the function graphed below?
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Answer:
(a) f(x) = √x -2
Step-by-step explanation:
The square root function has no horizontal shift, so the expression under the radical is simply x with no added terms. There is only one such answer choice, which also shows the necessary translation downward by an added negative constant.
[tex]f(x)=\sqrt{x}-2[/tex]
Answer:
the answer is A.
Step-by-step explanation:
:))))))
A circle has an area of 1075.21 m^2
What is the radius to the nearest 1 decimal x.x
Suppose that you have $13,000 in a rather risky investment recommended by your financial advisor. During the first
year, your investment decreases by 40% of its original value. During the second year, your investment at the end of year
one increases by 50%. Your advisor tells you that there must have been a 10% overall increase of your original $13,000
investment. Is your financial advisor using percentages properly? If not, what is your actual percent gain or loss of your
original $13,000 investment?
Answer:
There is loss of 10%
Step-by-step explanation:
The total sum of money invested [tex]= 13000[/tex] dollars
In the first year, the Investment values decreases by 40%. The final investment value after one year
[tex]\frac{(100-40)}{100} * 13000\\7800[/tex]
Now in the second year the investment increases by 50%. The final investment value after second year
[tex]\frac{100+50}{100} *7800\\1.5 * 7800\\11700[/tex]
The investment value after second year is less than that of total sum invested
% loss
[tex]\frac{13000-11700}{13000} * 100\\10[/tex]percent
There is loss of 10%
Prove that if triangle ABC and triangle DEF are triangles with equal defects and a pair of congruent sides, their associated Saccheri quadrilaterals are congruent. (HINT: Recall that the angle sum for a triangle is equal to the sum of the measures of the summit angles of its associated Saccheri quadrilateral and that the two summit angles of a Saccheri quadrilateral are congruent.)
Answer:
According to theorem 7.5
Π ABB'A' ≅ Π DEE'D'
therefore by transitivity of equivalence it is proven that triangle ABC and triangle DEF are triangles with equal defects and a pair of congruent sides
Step-by-step explanation:
To prove that triangle ABC and triangle DEF are triangles with equal defects and a pair of congruent sides :
Assume: б(Δ ABC ) = б(Δ DEF ) and also AB ≅ DE
let Π ABB'A' and DEE'D' be taken as the saccheri quadrilaterals that corresponds to Δ ABC and Δ DEF respectively
Following the Lemma above; б(Π ABB'A' ) = б( Π DEE'D' ) given that
AB = summit of ABB'A' and DE = summit of DEE'D' also AB ≅ DE
According to theorem 7.5
Π ABB'A' ≅ Π DEE'D'
therefore by transitivity of equivalence it is proven that triangle ABC and triangle DEF are triangles with equal defects and a pair of congruent sides