Answer:
-3
Step-by-step explanation:
4(2)-2(2+4)+1=8-2(6)+1=9-12=-3
Answer:
13
Step-by-step explanation:
4a-2=4×2-2=6
6(2+4) =6×6+1
Helpppppp!!!!!!!!!!!!
Answer:
b or B is correct answer out of all
Answer:
I'll try my best to answer this but it could be A. and B.
Step-by-step explanation:
The reasoning for this is because both A and B show correct number lines and the question is asking to select TWO that applyFor A., -2 is the opposite of 2»(-2 is on the left side of the number line, the left side of number lines show negative numbers)
This same rule applys to B. -4 is the opposite of 4.The reason why C. wouldn't be right is because -3 is on the same side where positive numbers would go, on the right side of 0. Meaning C. isn't a correct number line so it can't be the right answer..
I hope this helped!!
An experiment was conducted to see if there is any difference in the amount of weight gained by two groups of pigs fed + Feed # Pigs Mean Weight Gain Standard Deviation Diet A 36 55 3 Diet B 49 53 5.6 1. Construct a 95% confidence interval for the difference of means weight gain using 76 as the degree of freedom. 2. Assume that the variance of the 2 populations are equal, test the hypothesis that pigs fed with Diet A gain more weight than with Diet B at the 0.05 level. 2.
Answer:
Answer:
1. The confidence interval for the difference of means weight gain using 76 as the degree of freedom is -1.664, 5.664
2.The calculated value of t does not lie in the critical region for both d.f 76 and 83 . Therefore we accept our null hypothesis that pigs fed with Diet A gain more weight than with diet B at the 0.05 level
Step-by-step explanation:
# Pigs Mean Weight Gain Standard Deviation
Diet A 36 55 3
Diet B 49 53 5.6
(x`1- x` The 2) ± t∝/2 (v) . Sp √1/n1 + 1/n2
where v= d.f= 76
Here the difference between the sample means is x`1- x`2= 55-53= 2
The pooled estimate for the common variance σ² is
Sp² = 1/n1+n2 -2 [ ∑ (x1i - x1`)² + ∑ (x2j - x`2)²]
= 1/36 +49-2 [ 55²+53²]
Sp = √3025 +2809/83 = 8.38
t (0.025) (76) = 1.992
(x`1- x`2)± t∝/2 (v) . Sp √1/n1 + 1/n2
(2 )± 1.992 (8.38) √ 1/36 + 1/49
(2 )± 3.664
-1.664, 5.664
Par t 2:
The null and alternate hypotheses are
H0 : u1 > u2 against Ha: u1 ≤ u 2
Significance level alpha = 0.05
The critical region t ≥ t (0.05, 76) = 1.665
D.f = n1+n2- 2= 83
The critical region t ≥ t (0.05, 83) = 1.663
t = (x`1- x` ) /. Sp √1/n1 + 1/n2
t= 2/ 8.38 √1/36+ 1/49
t= 2/1.839
t= 1.087
The calculated value of t does not lie in the critical region for both d.f 76 and 83 . Therefore we accept our null hypothesis that pigs fed with Diet A gain more weight than with diet B at the 0.05 level
NEED ANSWER FAST PLEASE HELP!!!
If y − 4 = 2x, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs?
A. {(2, 1), (4, 2), (6, 3)}
B. {(1, 2), (2, 4), (3, 6)}
C. {(4, 0), (6, 1), (8, 2)}
D. {(0, 4), (1, 6), (2, 8)}
Answer:
D
Step-by-step explanation:
plug in the coordinates for x and y
The HCF of 104 and X is 52. The HCF of X and 234 is 78. Given that X is a
number between 104 and 234, find X.
Answer:
X = 156
Step-by-step explanation:
52 is a factor of 52, 104, 156, and 208
78 is a factor of 78, 156, and 234.
The commonality here is 156.
Highest common factor (HCF) is the highest factor of two number among all the common factors of the these number.
When finding the factors of two number, some number among these factors are common. The value of the number [tex]x[/tex] is 156.
What is the highest common factor (HCF)?When finding the factors of two number, some number among these factors are common.
Highest common factor (HCF) is the highest factor of two number among all the common factors of the these number.
Given information-
The HCF of 104 and [tex]x[/tex] is 52.
The HCF of [tex]x[/tex] and 234 is 78.
The number [tex]x[/tex] is between 104 and 234.
The factors of 52 (multiples of 52) less than or equal to the number 234 are,
[tex]52,104,156,208[/tex]
The factors of 78 (multiples of 78) less than or equal to the number 234 are,
[tex]78,156,234[/tex]
The common number from both sets is 156.
The number 156 is the value of [tex]x[/tex] which is between the number 104 and 234.
Hence the value of the number [tex]x[/tex] is 156.
Learn more about the highest common factor here;
https://brainly.com/question/219464
Please help me I need help
Answer:non
Step-by-step explanation:
Answer:
It's nonproportional
3x+2/2=13 please help me find the anwser
Answer:
x=4
Step-by-step explanation:
A ray is a part of a line.
Answer:
A ray is a part of a line.
Step-by-step explanation:
yes
A ray is a part of a line - True
(6^4) (6^-2)
I still can't find the answer.
Answer:
It would be A )6 powed by 2
Step-by-step explanation:
Answer:
Step-by-step explanation:
the problem can be rewritten to look like
6^4 / 6^2 does that help?
or just put the exponents together like 6^(4-2)
[tex]6^{4-2}[/tex]
you've probably figured it out by now.. but. just in case
it's [tex]6^{2}[/tex]
WILL GIVE BRAINLIEST LOOK AT PHOTOS FOR QUESTION
Answer:
7.60
0.76
0.2
0.2
hjlai
help please help asap
Answer:
14/20 = 7/10 so I believe it would be 7 days out of 10
Step-by-step explanation:
Answer:
Wouldn't it be 14/20
Step-by-step explanation:
Which expressions are equivalent to
?
2
Choose 2 answers:
MY
Coi
k-2
MY
Pro
Pra
Tea
k: 2
k+k
Please help, worth 20+! GIVE ANWERS! PLEASE ANDty
[tex]\huge\underbrace\mathtt\blue{∆ᴀɴsᴡᴇʀ∆}[/tex]
[tex]1) \: \: \: \frac{34}{100} = 0.34[/tex]
[tex]2) \: \: \: \: \frac{23}{50} = \frac{23 \times 2}{50 \times 2} = \frac{46}{100} = 0.46[/tex]
[tex]3) \: \: \: \frac{6}{8} = \frac{6 \times 125}{8 \times 125} = \frac{750}{1000} = 0.008[/tex]
[tex]4) \: \: \: \frac{1}{3} = 0.3[/tex]
(for no. 4 check the image in the attachment)
The time period, T, of a simple pendulum is directly proportional to the square root of the length, d, of the pendulum.
When d=6, T=5
Find the value of T when d=3
Input note: give your answer correct to 2 decimal place.
Answer: T= 3.54
Step-by-step explanation:
Step 1
Given that
The time period, T, s doirectly proportional to the square root of the length, d, of the pendulum, we have that
T ∝ [tex]\sqrt{d}[/tex]
Introducing the constant of proportionality, we have that
T= K[tex]\sqrt{d}[/tex].
Step 2
When d=6, T=5, K =?
T= K[tex]\sqrt{d}[/tex].
5 = k[tex]\sqrt{6}[/tex]
5= k x 2.44949
k =5/2.44949
k =2.041
Therefore, when d = 3 , T= ?
T= K[tex]\sqrt{d}[/tex]
T= 2.041 x [tex]\sqrt{3}[/tex]
T= 3.53511≈ 3.54
A side of the triangle below has been extended to form an exterior angle of 127°. Find
the value of x.
17°
xº
127°
Answer:
x = 53°
Step-by-step explanation:
x + 127° = 180° (sum of angles on a straight line/supplementary angles)
Subtract 127 on both sides
x + 127 - 127 = 180 - 127 (subtraction property of equality)
x = 53°
Which is the graph of y-3=-2/3(x+6)
what's the 9th term of the fibonacci sequence
Answer:
21
Step-by-step explanation:
i hope this helps :)
Answer:
.where is the explanation?
inverse laplace of L^-1 {5s/s^2 + 3s - 4}
Answer:
[tex]e^{t}+4e^{-4t}[/tex].
Step-by-step explanation:
To find the Laplace inverse of the above problem, we have to first solve the problem as a partial fraction, hence:
[tex]\frac{5s}{s^2+3s-4}=\frac{5s}{s^2+4s-s-4} \\\\=\frac{5s}{s(s+4)-1(s+4)}\\\\=\frac{5s}{(s-1)(s+4)}=\frac{A}{s-1}+\frac{B}{s+4}\\\\= \frac{A(s+4)+B(s-1)}{(s-1)(s+4)}\\\\Hence:\\\\\frac{A(s+4)+B(s-1)}{(s-1)(s+4)}=\frac{5s}{(s-1)(s+4)}\\\\A(s+4)+B(s-1)=5s\\\\to\ find \ A,put\ s=1:\\\\A(1+4)+B(1-1)=5(1)\\\\5A=5\\\\A=1\\\\to\ find \ B,put\ s=-4:\\\\A(-4+4)+B(-4-1)=5(-4)\\\\-5B=-20\\\\B=4\\\\Hence:\\\\\frac{5s}{s^2+3s-4}=\frac{1}{s-1}+ \frac{4}{s+4}\\\\[/tex]
[tex]L^{-1} [\frac{5s}{s^2+3s-4}]=L^{-1}[\frac{1}{s-1} ]+L^{-1}[\frac{4}{s+4} ]\\\\But\ L^{-1}[\frac{1}{s-a} ]=e^{at}\\\\Hence:\\\\L^{-1} [\frac{5s}{s^2+3s-4}]=L^{-1}[\frac{1}{s-1} ]+L^{-1}[\frac{4}{s+4} ]=e^{t}+4e^{-4t}\\\\=e^{t}+4e^{-4t}[/tex]
Drag and drop each number to its correct position on the number line.
i forgot the number line, so sorry
Answer:
-⅜ is between -1 and 0
⅞ is between 0 and 1
-2½ is between -3 and -2 ( in the mid )
2½ is between 2 and 3 ( in the mid )
Mr. Wells tells his class of 24 that when they have completed the assignment, they may play online math games. At the end of class, 40% of the class is playing online math games. Approximately how many students still need to complete their assignment
Help plz
Answer:
Approximately 14-15
Step-by-step explanation:
This is because 60 percent are not playing games, meaning they haven’t completed their assignment. You then just find 60 percent of 24(the total). That is 14.4 so you round it because you can’t have half of a person, it needs to be a whole number.
Solve.
D = HS, for s
Answer:
The answer is S=D/H
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
3. A large banquet room holds 288 people, with each table seating 8. How many tables can the banquet hall have without going over its capacity? Maneuvering the Middle LLC.
Answer: 36 tables
Step-by-step explanation: Just divide 288 by 8. I hope this helps!
Picture Shown!! Please help!!
Answer:
64x^6
Step-by-step explanation:
the question is
in 2001 how many applications were received and what percentage of grants were funded?
Answer:
The number of applications received is approximately 30,000 and the success rate is approximately 32%.
Step-by-step explanation:
The application curve is red in colour, on 2001 trace it the right hand side, the number of applications received is approximately 30,000.
The percentage of grants funded is equal to the success rate which is the curve green in colour. On 2001 trace the curve to the left hand side, the success rate is approximately 32%.
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ا ن و و
An account paying 4.6% interest compounded quarterly has a balance of $506,732.32. Determine the amount that
can be withdrawn quarterly from the account for 20 years, assuming ordinary annuity.
$9,722.36
b $6,334.15
$23,965.92
d. $7,366.99
Answer:
answer Option A $9,722.36
I am 100% sure
Joe buy pens and pencils.pens cost $1.50 and pencils cost $0.75.Write an equation that represents the combinations of how many each of each he can buy for $12
Find the distance between the points (2,8) and (17,0).
Answer:
[tex]d = 17[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra II
Distance Formula: [tex]d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]Step-by-step explanation:
Step 1: Define
Point (2, 8)
Point (17, 0)
Step 2: Find distance d
Simply plug in the 2 coordinates into the distance formula to find distance d.
Substitute [DF]: [tex]d = \sqrt{(17-2)^2+(0-8)^2}[/tex]Subtract: [tex]d = \sqrt{(15)^2+(-8)^2}[/tex]Exponents: [tex]d = \sqrt{225+64}[/tex]Add: [tex]d = \sqrt{289}[/tex]Simplify: [tex]d = 17[/tex]Help with this puzzle for Brainliest!
Which of the following is the equation of the line that is perpendicular to y=-4x-5 and goes through the point (-2, 3)? Question 14 options: y=-4x-5 y=-1/4x+5/2 y=1/4x+7/2 y=4x+11
Answer:
The equation of the perpendicular line to y=-4*x-5 is [tex]y=\frac{1}{4}*x+\frac{7}{2}[/tex]
Step-by-step explanation:
Perpendicular lines are two or more lines that intersect at an angle of 90 degrees. Being y = m * x + b the equation of a line, two lines, with a slope other than zero, are orthogonal or perpenducillary if and only if the product of their slopes is -1. In other words, if two lines are perpendicular, they have their slopes reversed and sign changed.
In this case, with y = -4x-5 the slope will be -4. So the slope of the perpendicular line will be [tex]\frac{1}{4}[/tex]. Then the equation of the perpendicular line will be:
[tex]y=\frac{1}{4}* x+b[/tex]
To find the value of b, you know the value of the point (-2,3). So x = -2 and y = 3. Replacing in the equation of the perpendicular line, you have:
[tex]3=\frac{1}{4}* (-2)+b[/tex]
Solving, you get:
[tex]3=-\frac{1}{2}+b[/tex]
[tex]3+\frac{1}{2}=b[/tex]
[tex]\frac{7}{2}=b[/tex]
The equation of the perpendicular line to y=-4*x-5 is [tex]y=\frac{1}{4}*x+\frac{7}{2}[/tex]
Piper opened a savings account with $1400 that pays no interest. She deposits an
additional $50 each week thereafter. How much money would Piper have in the
account 47 weeks after opening the account?
Answer:
$3700
Step-by-step explanation:
Given that:
Initial amount = $1400
Amount deposited per week = 50
Amount after 47 weeks =?
Using the Arithmetic Progression relation :
Tn = A + (n - 1)d
Weekly deposit = d = 50
A = initial / first deposit = 1400
n = number of deposits
T47 = 1400 + (47 - 1)50
T47 = 1400 + (46)*50
T47 = 1400 + 2300
T47 = 3700
Answer:
$3750
Step-by-step explanation:
T47 = 3750
Which statement does not describe the cosine function?
A. The cycle repeats every 21 radians.
B. Its range includes all real numbers.
C. The cycle starts at y = 1, decreases to y = -1, and then increases
to y = 1.
D. Its reciprocal function is secant.
SUBMIT
The statement (B) " Its range includes all real numbers." is correct because it does not describe the cosine function.
What is a function?It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
As we know, the trigonometric ratio is defined as the ratio of the pair of a right-angled triangle.
Trigonometry is a branch of mathematics that deals with the relationship between sides and angles of a right-angle triangle.
The domain of a cos function is al real numbers and the range of the cos function is [-1, 1]
The cos function is the reciprocal of the secant.
The cycle repeats every 21 radians.
Thus, the statement (B) " Its range includes all real numbers." is correct because it does not describe the cosine function.
Learn more about the function here:
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