Có 2 chuông gà: chuồng 1 có 5 trống 10 mái ,chuồng 2 có 6 trống 14 mái. Có 1 con ở chuồng 2 nhảy sang chuồng 1 . từ chuồng 1 bắt ngẫu nhiên ra 2 con. Tính xác suất bắt được
a . 2 con trống
ASAP Lots of points!! 100 points!! Which expression is equivalent to 2^4 ⋅ 2^−7?
(Remember 2 to the power of 4 x 2 to the power of -7 = 0.125)
1 over 2 to the power 11
1 over 2 to the power 3
2 to the power of 3
2 to the power of 11
you can cancel out 2^11 and 2^3
Answer:
the answer for this is:
subtract 7 from 4 to get -3
you then have 2^-3
remove the negative exponent by rewriting as 1/(2^3)
Step-by-step explanation:
How many distinct lines of symmetry does the image have?
The image has rotational symmetry after rotating every
Answer:
1) 6 lines of symmetry
2) 360 ÷ 6 = 60°
please help...... fast
Answer:
SAS
Step-by-step explanation:
write the rational expressions as equivalent rational expressions with the lowest common denominator
1. The equivalent rational expression with the lowest common denominator of [tex]\frac{2}{3d^{2} + 14d^{2} - 5 }[/tex] is [tex]\frac{2}{(d+5)(3d-1)}[/tex]
2. The equivalent rational expression with the lowest common denominator of [tex]\frac{3d}{3d^{2} - 22d + 7}[/tex] is [tex]\frac{3d}{(d-7)(3d-1)}[/tex]
1.
[tex]\frac{2}{3d^{2} + 14d^{2} - 5 }[/tex]
Let factorise the denominator below
3d² + 14d - 5
-15 and 14
Two numbers we can multiply to get -15 and add to get 14 are 15 and -1.
Therefore,
3d²- d + 15d - 5
d(3d - 1) + 5(3d - 1)
(d+5)(3d-1)
Therefore, the equivalent rational expression with the lowest common denominator will be
[tex]\frac{2}{(d+5)(3d-1)}[/tex]
2.
[tex]\frac{3d}{3d^{2} - 22d + 7}[/tex]
Factorise the denominator
3d²- 22d+7
3d²- d - 21d + 7
d(3d - 1) - 7(3d - 1)
(d - 7)(3d - 1)
Therefore, the equivalent rational expression with the lowest common denominator will be
[tex]\frac{3d}{(d-7)(3d-1)}[/tex]
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A rectangles has a length 2 ft less than three times its width what is the area of the rectangle when its width is 2 ft
Answer:
8
Step-by-step explanation:
rectangle length is 2-3w
w=2
3 x 2=6 - 2=4
l x w
4 x 2 =8
11. Find the slope of a line which passes through the points (3,4) and (8,-1).
a. -1
b. 1
c. ⅗
d. 5/3
Answer:
A
Step-by-step explanation:
Slope = (change in y)/ (change in x)
= (-1 - 4)/ (8 - 3)
= -5/5
= -1
Find the distance between A(-4,4) and B(-2,2). Round your answer to the nearest tenth.
Answer:
6.3
Step-by-step explanation:
1) rule:
[tex]d=\sqrt{(X_A-X_B)^2+(Y_A-Y_B)^2)}[/tex]
2) according to the rule above:
[tex]d=\sqrt{36+4}=2\sqrt{10};[/tex]
d≈6.3
Answer:
6.3
Step-by-step explanation:
Each big square below represents one whole. what percent is represented by the shaded area?
Answer:
175%
Hope this helps!
someone help me please
17 < 4x +1 and 49 > 4x + 1
HELP MME WITH THIS PLEASE
Answer:
0.84
Step-by-step explanation:
21/25 is equal to 0.84.
Hopefully this helps!
Brainliest please?
write 1234 base 5 in powers of 5.
Answer:
Step-by-step explanation:
613 = 4x125 + 113 = 4x53 + 113
Hence the first digit (reading left to right) is a 4.
The remainder is 113 so how many 25's are there in 113?
113/25 = 4 with a remainder of 13
Thus
613 = 4x125 + 4x25 + 13 = 4x53 + 4x52 + 13
Hence the second digit (reading left to right) is also a 4.
The remainder is 13 so how many 5's are there in 13?
13/5 = 2 with a remainder of 3
Thus
613 = 4x125 + 4x25 + 2x5 + 3 = 4x53 + 4x52 + 2x5 + 3
Hence the third digit (reading left to right) is a 2 and the units digit is 3. Therefore
613 written in base 5 is 4423
example
right please no link or bot
Answer:
3^18
Step-by-step explanation:
Hope it helps
Answer:
3^3
Step-by-step explanation:
please please help with question 18
The Correct choice is :
[tex]y = \dfrac{3}{5} x + 2[/tex]Explanation :As per given in the question, both the lines are parallel so they have equal slopes. that is slope of required line is :
[tex] \dfrac{3}{5} [/tex]now, let's use slope and the coordinates of the given points to find the equation of line in point - slope form :
[tex]y - y1 = m(x - x1)[/tex][tex](y - ( - 1)) = \dfrac{3}{5} (x - ( - 5))[/tex][tex]y + 1 = \dfrac{3}{5} (x + 5)[/tex][tex]5(y + 1) = 3(x + 5)[/tex][tex]5y + 5 = 3x + 15[/tex][tex]5y = 3x + 15 - 5[/tex][tex]5y = 3x + 10[/tex][tex]y = \dfrac{3x + 10}{5} [/tex][tex]y = \dfrac{3}{5} x + 2[/tex]therefore , the correct choice is A
What is the geometric series
1,-5,25,-125.......n=8 please this is 30 points
Answer:
-5
Step-by-step explanation:
b1 = +1
b2= -5
b3 = +25
b4 = -125
q = -5 (if u times it -5, u will have every second + or -)
q = [tex]\frac{b2}{b1}[/tex] = -5:1 = -5
9514 1404 393
Answer:
the sum of 8 terms of the series is -65104.
Step-by-step explanation:
The first term is 1.
The common ratio is (-5)/(1) = -5.
The sum of 8 terms is ...
S8 = a1(r^8 -1)/(r -1)
S8 = 1((-5)^8 -1)/((-5) -1) = 390624/-6 = -65104
The sum of 8 terms is -65104.
__
The 8th term is 1·(-5)^(8-1) = -78,125.
Solve by elimination, ordered pair also
4x + 6y = 12
6x + 9y = 12
[tex]\large\underline{\sf{Solution-}}[/tex]
Solving by Eliminating method:
[tex]\sf \leadsto 4x + 6y = 12\:\:- - - (i)[/tex]
[tex]\sf \leadsto 6x+9y = 12 \:\: - - -(ii)[/tex]
Step 1: Multiply Eqⁿ (I) by 3 and Eqⁿ (ii) by 2 to make the coefficients of y equal. Then we get the equations.
[tex]\sf \leadsto 12x + 18y = 36\:\: - - - (iii) [/tex]
[tex]\sf \leadsto 12x + 18y = 24\:\:- - - (iv)[/tex]
Step 2: Subtract Eqⁿ (iii) from Eqⁿ (iv) , we get
[tex]\sf \leadsto (12x + 18y)-(12x + 18y) = 36-24[/tex]
[tex]\sf \leadsto 0 =12, Which is a false statement. [/tex]
Therefore, the pair of equations has no solution.
Hope this helps!!
If the snow is falling at a rate of 1 2/3 inches per hour, how many hours will it take to snow 12 inches?
A.7 1/5 hours
B.20 hours
C.5/36 of an hour
1/20 of an hour
Answer:
C
Step-by-step explanation:
CLASS 6 MATHS!!!! HELP ME PLEASE!!!!!!!
Step-by-step explanation:
[tex] \\ 20. \: \: ( \frac{ - 3}{4} )(4\frac{1}{6} )[/tex]
[tex] \\ = \frac{ - 3}{4} \times \frac{25}{6} [/tex]
[tex] \\ = \frac{ - 25}{8} [/tex]
[tex] \\ = - 3.125[/tex]
[tex] \\ 21. \: \: ( - 3\frac{7}{8} )( - 5\frac{3}{4} )[/tex]
[tex] \\ = \frac{ - 31}{8} \times \frac{ - 23}{4} [/tex]
[tex] \\ = \frac{713}{32} [/tex]
[tex] \\ = 22.28125[/tex]
If there were 310 million people in the United States, what was the daily consumption rate in barrels per person in the United States? This is also called "barrels per capita." Round to the nearest hundredth of a barrel.
The daily consumption rate in the United States will be 10 barrels per person.
Your question is incomplete as you didn't provide the total barrels, therefore, an overview of the answer will be given. In their case, let's assume that the total barrels is given as 3.1 billion.
Therefore, the barrels per person will be:
= Total barrels / Population
= 3.1 billion / 310 million
= 10 barrels per person.
In conclusion, the correct option is 10 barrels per person.
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In a class of 29 students, 10 are female and 20 have an A in the class. There are 2 students who are male and do not have an A in the class. What is the probability that a female student does not have an A?Answer this
Answer:
The probability would be 3 out of the 10 girls
Step-by-step explanation:
The probability that a female student does not have an A on the test is 7/29.
What is the probability that a female student does not have an A?
Probability is mathematical operation that is used to determine how likely a stated event would happen. The probability the event occurs is 1 and the probability that the event does not occur is 0.
The probability that a female student does not have an A = number of females that do not have an A / total number of females
(29 - 20 - 2 )/ 29 = 7/29
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solve for x and y in the following equation.
2x - 3y = 9.......(I)
2x + y = 13.......(ii)
x + 7y = 10.......(I)
3x - 2y = 7.......(ii)
5x + y = 10.......(I)
7x - 3y = 14......(ii)
Answer:
just rearrange the equation. I did the first one. Do the same for the rest.
2x - 3y = 9
-3y = -2x + 9
y = -2/-3x + 9/-3
y = 2/3x - 3
Step-by-step explanation:
list the samples in order from least to greastest mass.
0.130 0.301 0.31 0.013
Answer: .013, .130, .301, .31
Step-by-step explanation:
Álgebra ajajajajajajajajaja
I need to turn this in before 11:59!!!!!!
Solve for x.
4.0 – 3
3
= 7
Enter your answer in the box.
X=
Answer:
I'm sorry if its incorrect
Answer:
x=6
Step-by-step explanation:
answer is in the photo
A penguin walks 10 feet in 6 seconds. How far does he walk in 45 seconds?
I will give you BRAINLYEST if you answer this. (I did not get an answer the first time that I asked this)
What is the sign of the product (3) × (−25) × (7) × (−24)?
Positive, because the products (3) × (−25) and (7) × (−24) are negative and the product of two negative numbers is positive
Positive, because the products (3) × (−25) and (7) × (−24) are positive and the product of two positive numbers is positive
Negative, because the products (3) × (−25) and (7) × (−24) are negative and the product of two negative numbers is negative
Negative, because the products (3) × (−25) and (7) × (−24) are positive and the product of two positive numbers is negative
Answer:
Positive, because the products (3) × (−25) and (7) × (−24) are negative and the product of two negative numbers is positive
Step-by-step explanation:
(3) × (−25) × (7) × (−24) =(-75)(negative)×(-168)(negative)=12 600(positive)
HELPPP!!! WILL MARK BRAINLIEST!!! 10 PTS
Find an equation for the graph sketched below:
Answer:
Plot the coordinate points and connect them with a smooth curve.
Hope This Help you po..
pa brainlest?
The equation for the graph is y = [tex]2(3)^{x} -5[/tex] .
What are Exponential Equations?An exponential equation is an equation with exponents where the exponent (or) a part of the exponent is a variable.
Standard exponential equation :
y = [tex]a(b)^{x} + k[/tex]
where a is the initial value
b represents the base of the exponential function
x will represent the input of the function
y = k is the single horizontal asymptote
k is constant
According to the question
The figure in the graph is an exponential graph .
To derive the equation
we will use Standard exponential equation :
y = [tex]a(b)^{x} + k[/tex]
Now,
There are two points in graph
(0.-3) and (1,1)
k = - 5 ( distance from 0)
now ,
Substituting the values
y = [tex]a(b)^{x} + k[/tex]
y = [tex]a(b)^{x} -5[/tex]
for point (0.-3)
-3 = [tex]a(b)^{0} -5[/tex]
-3 = [tex]a -5[/tex]
a = 2
for point (1,1)
1 = [tex]2(b)^{1} -5[/tex]
1 = 2b - 5
b = 3
Therefore , equation of exponential graph is
y = [tex]2(3)^{x} -5[/tex]
Hence ,The equation for the graph is y = [tex]2(3)^{x} -5[/tex] .
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A. 9/35
B. -9/35
C. -3 8/9
D.3 8/9
Answer:
D. 3 8/9Step-by-step explanation:
[tex] \frac{x}{y} \\ x \div y \\ - \frac{7}{9} \div - 0.2 \\ - \frac{7}{9} \times - \frac{1}{0.2} \\ \frac{7}{1.8} \\ \frac{7 \times 10}{1.8 \times 10} \\ \frac{70}{18} \\ \frac{35}{9} \\ = 3 \frac{8}{9} \\ [/tex]
=
Find the slope of the graph of — 4x + 2y = 10 by
rewriting the equation in slope-intercept form.
Answer:
multiply by -1
Step-by-step explanation:
Slope intercept form : y = mx + b
-4x + 2y = 10 Solve the equation for y
+4x = +4x
2y = 4x + 10
y = 4x/2 + 10/2 Divide all terms by 2
multiply by -1 Simply
Angelica is making fruit baskets. She has 3 bags containing 35 tangerines each. She has 4 bags of apples. Using no particular combination of fruit, Angelica was able to make 13 fruit baskets with 13 pieces of fruit in each basket. Each bag contained an equal number of apples. How many apples, a, were in each bag?
Write the equation, solve it out and provide the solution.
5 bags of apples 29 apples in each bag