Evaluate.
3^−1 x (4 x 6) x 2^−3
Enter your answer in the box.
Answers
Answer:
Your awnser is 1
Step-by-step explanation:
Just needed to simplfy.
Related Questions
The vertices of triangle ABC are given: A (0;-1) B(12; -10) C(10;4)
Find:
a) the equation of the median and bisector drawn from vertex A;
b) the equation of the altitude from vertex B;
c) the point of intersection of the median and height;
d) the coordinates of the center of mass (the point of intersection of the medians).
Answers
verified
Verified by Toppr
Median bisects the line.
D≡(
2
−3+5
,
2
−9−8
)≡(1,
2
−17
)
E≡(−
2
1+5
,
2
6−8
)≡(2,−1)
F≡(−
2
1−3
,
2
6−9
)≡(−2,
2
−3
)
∴ equation of AD:(y−y
1
)=(
x
2
−x
1
y
2
−y
1
)
AD
(x−x
1
)
⇒(y−6)=
⎝
⎜
⎜
⎛
1+1
2
−17
−6
⎠
⎟
⎟
⎞
(x+1)⇒(y−6)=−
4
29
(x+1)
⇒
4
29
x+y−6+
4
29
=0
AD⇒29x+4y+5=0
equation of BE:(y+9)=(−
2+3
1+9
)
BE
(x+3)
⇒(y+9)=
5
8
(x+3)⇒5y+45=8x+24
BE⇒8x−5y−21=0
Equation of CF:(y+8)=
⎝
⎜
⎜
⎛
−2−5
−
2
3
+8
⎠
⎟
⎟
⎞
CF
(x−5)
⇒(y+8)=−
14
13
(x−5)⇒14y+112=−13x+65
CF:13x+14y+47=0
are greater than 0 and located to the right of 0 on a number
line.
Integers
O Positive numbers
Negative Numbers
Opposites
Question 2
10 pts
Every whole number, fraction, and decimal has an opposite.
True
False
Answers
Answer:
1o
2true I helped it help
I not understand this any help please answer and explain please
Answers
The length the line segment DF is 21 units
What is Similarity of Triangles?
Two objects are comparable in Euclidean geometry if they have the same form or one has the same shape as the mirror image of the other. More exactly, one can be created by evenly scaling the other, potentially with extra translation, rotation, and reflection.
Since, the question is incomplete I can only assume that the traingles are similar
So, by rule of similarity we can say that ED/BA = DF/AC
by this 15/5 = DF/7
This implies that the length of DF is 21 units
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what is a good math skill grade? in apex, like a number.
Answers
Answer:
60%
Step-by-step explanation: Apologies if incorrect
Write the phrase as an expression.
3 times a number x
Answers
Answer:
It would have to be 3x or 3(x)
What is missing in the percent what is number 45 of 80
Answers
Answer:
35
Step-by-step explanation:
Use the t-distribution and the given sample results to complete the test of the given hypotheses. Assume the results come from random samples, and if the sample sizes are small, assume the underlying distributions are relatively normal. Test Upper H Subscript 0 Baseline : mu Subscript 1 Baseline equals mu Subscript 2 vs Upper H Subscript a Baseline : mu Subscript 1 Baseline greater-than mu Subscript 2 using the sample results x Overscript bar EndScripts Subscript 1 Baseline equals 56, s Subscript 1 Baseline equals 8.2 with n Subscript 1 Baseline equals 30 and x Overscript bar EndScripts Subscript 2 Baseline equals 51, s Subscript 2 Baseline equals 6.9 with n Subscript 2 Baseline equals 40.
A. Give the test statistic and the p-value.
B. What is the conclusion of the test? Test at a 10 % level.
Answers
Answer:
(A) The value of t test statistics is 2.767 and P-value is 0.0042.
(B) We conclude that the mean of first group is greater than the mean of second group.
Step-by-step explanation:
We are given the following hypothesis below;
Null Hypothesis, \(H_0\) : \(\mu_1=\mu_2\) {means that the mean of first group is equal to the mean of second group}
Alternate Hypothesis, \(H_A\) : \(\mu_1>\mu_2\) {means that the mean of first group is greater than the mean of second group}
The test statistics that would be used here Two-sample t-test statistics as we don't know about population standard deviation;
T.S. = \(\frac{(\bar X_1-\bar X_2)-(\mu_1-\mu_2)}{s_p\sqrt{\frac{1}{n_1} +\frac{1}{n_2} } }\) ~ \(t__n__1-_n__2-2\)
where, \(\bar X_1\) = sample mean of first group = 56
\(\bar X_2\) = sample mean of second group = 51
\(s_1\) = sample standard deviation of first group = 8.2
\(s_2\) = sample standard deviation of second group = 6.9
\(n_1\) = sample of first group = 30
\(n_2\) = sample of second group = 40
Also, \(s_p=\sqrt{\frac{(n_1-1)s_1^{2} +(n_2-1)s_2^{2} }{n_1+n_2-2} }\) = \(\sqrt{\frac{(30-1)\times 8.2^{2} +(40-1)\times 6.9^{2} }{30+40-2} }\) = 7.482
So, the test statistics = \(\frac{(56-51)-(0)}{7.482 \times \sqrt{\frac{1}{30} +\frac{1}{40} } }\) ~ \(t_6_8\)
= 2.767
(A) The value of t test statistics is 2.767.
Also, P-value of the test statistics is given by;
P-value = P( \(t_6_8\) > 2.767) = 0.0042
(B) Now, at 10% significance level the t table gives critical value of 1.295 at 68 degree of freedom for right-tailed test.
Since our test statistic is more than the critical values of t as 2.767 > 1.295, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which we reject our null hypothesis.
Therefore, we conclude that the mean of first group is greater than the mean of second group.
Choose the correct option from the menu.
9
10 S equal to
The fraction
0.9
9.0
0.09
Answers
Answer:
0.9
Step-by-step explanation:
it's 90 percent and 0.9 in decimals
A mountain is 13,318 ft above sea level and the valley is 390 ft below sea level What is the difference in elevation between the mountain and the valley
Answers
Answer: 13,708 ft
Step-by-step explanation:
To find the difference in elevation between the mountain and the valley, we need to subtract the elevation of the valley from the elevation of the mountain:
13,318 ft (mountain) - (-390 ft) (valley) = 13,318 ft + 390 ft = 13,708 ft
Therefore, the difference in elevation between the mountain and the valley is 13,708 ft.
Answer: The difference is 13,708 ft.
Given that a mountain is 13,318 feet above sea level. So the elevation of the mountain is \(= +13,318 \ \text{ft}\).
Given that a valley is 390 feet below sea level.
So the elevation of the valley is \(= -390 \ \text{ft}\).
So the difference between them is \(= 13,318 - (-390) = 13,318 + 390 = 13,708 \ \text{ft}.\)
Learn more: https://brainly.com/question/20521181
is y = -x + 5 non-linear or linear
Answers
Answer:
It's linear
Step-by-step explanation:
Linear equations have no exponents higher than a 1, which is the case for this equation cause if there's no exponent it's cause it's just a 1. Non-linear has a exponent higher than a 1, ex. \(x^{2}\)
Jake has 18 candy he gave bob 1/3nfrom the candy remaining he gave Dana 1/6 . How many candy does Jack have left?
Answers
Given
Jake has 18 candy
Gave bob 1/3 and from candy remaining he gave Dana 1/6
Procedure
First let's calculate the amount of candy given to Bob.
Bob
\(\frac{1}{3}\cdot18=6\text{candys}\)Remaining candy
\(18-6=12\text{candys}\)Dana
\(12\cdot\frac{1}{6}=2\text{ candy}\)Remaining
\(12-2=10\text{ candy}\)The amount of candy left for Jack is 10 candy
The expression (p20)(p−4)2 is equivalent to pn . What is the value of n?
Answers
Answer:
\(n = 12\)
Step-by-step explanation:
Given
\((p^{20})(p^{-4})^2 = p^n\)
Required
What is n?
\((p^{20})(p^{-4})^2 = p^n\)
Apply law of indices
\((p^{20})(p^{-4 * 2}) = p^n\)
Express -4 * 2 as -8
\((p^{20})(p^{-8}) = p^n\)
Apply law of indices
\(p^{20 - 8} = p^n\)
\(p^{12} = p^n\)
Cancel p on both sides
\(12 = n\)
\(n = 12\)
What is the absolute
value for:
|-771
Answers
Answer:
771 is the absolute value of -771.
Step-by-step explanation:
The absolute value is the distance of that number from 0. Therefore, negative or not, the number shown will always be the positive number that it is.
Examples:
|-8| = 8.
|2|=2
|-9912|=9912
|236|=236
Continued explanation:
Because the absolute value is the distance of that number from zero, the value will always be positive. And then the distance is going to be the same number.
I hope this helps!
-No one
Question 8 Find the unit vector in the direction of (2,-3). Write your answer in component form. Do not approximate any numbers in your answer.
Answers
Answer:
The unit vector in component form is \(\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)\) or \(\hat{u} = \frac{2}{\sqrt{13}}\,i-\frac{3}{13}\,j\).
Step-by-step explanation:
Let be \(\vec u = (2,-3)\), its unit vector is determined by following expression:
\(\hat {u} = \frac{\vec u}{\|\vec u \|}\)
Where \(\|\vec u \|\) is the norm of \(\vec u\), which is found by Pythagorean Theorem:
\(\|\vec u\|=\sqrt{2^{2}+(-3)^{2}}\)
\(\|\vec u\| = \sqrt{13}\)
Then, the unit vector is:
\(\hat{u} = \frac{1}{\sqrt{13}} \cdot (2,-3)\)
\(\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)\)
The unit vector in component form is \(\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)\) or \(\hat{u} = \frac{2}{\sqrt{13}}\,i-\frac{3}{13}\,j\).
41. A pair of shoes was originally priced at
$90. After two successive discounts of
10% and 5%, what was the final price?
(1) $72.90
(2) $75.00
(3) $76.95
(4) $78.25
(5) $80.40
of 30 and a pe-
Answers
Answer:
Step-by-step explanation:
First discount
90/100 * 90 = 81 dollars
Second discount.
Be careful. This is usually a discount from the price in part are.
5% of 81 = 5/100 * 81 = 4.05
81 - 4.05 = 76.95
Your family picked apples over the weekend. 1/8 of the apples picked were golden delicious and 1/4 were McIntosh. The remaining were Granny Smith. What fraction of the apples were Granny Smith apples
Answers
Answer:
5/8
Step-by-step explanation:
1/4=2/8
2/8+1/8=3/8
8/8-3/8=5/8
please help !!!!!!!!!!!!!!!!!!!
what is A
Answers
Answer:
Step-by-step explanation:
a=11/12
Jeff's shipping service charges $8 for the first package and $2 for each additional package. Use a linear equation to determine the cost to ship 8 packages.
Answers
Answer: 22
Step-by-step explanation:
The linear equation to determine the cost to ship 8 packages is x=22.
Given that, Jeff's shipping service charges $8 for the first package and $2 for each additional package.
What is a linear equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation. The standard form linear equation is Ax+B=0.
Let the total charge be $x.
Now, x=8+(8-1)2
⇒x=8+14
⇒x=22
Therefore, the linear equation to determine the cost to ship 8 packages is x=22.
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write an equation in standard form for the line that is parellel to the graph of -8x=5-4y and has a y-intercept -0.5
A x+.05=0.25
B 10x-5y=2
C 4x-2y=1
D 2x-y=1
Answers
9514 1404 393
Answer:
C 4x -2y = 1
Step-by-step explanation:
The y-intercept of the offered choices can be found by dividing the constant by the y-coefficient.
A: not in standard form (coefficients are not integers)
B: 2/-5 = -2/5 . . . not -1/2
C: 1/-2 = -1/2 . . . a good candidate
D: 1/-1 = -1 . . . not -1/2
please answer asap!!!
Answers
Answer:
8
Step-by-step explanation:
Line RT will be 2x smaller than QU because line RT splits lines QS and US equally.
Answer:
8
Step-by-step explanation:
Because RT is smaller than QU so thereforeyou would have to divide 16 by 2 to get 8
While writing a paper on making decisions in groups, Peter researched the number of members on a variety of committees. Number of members Number of committees 26 4 44 2 93 1 96 3 X is the number of members that a randomly chosen committee has. What is the expected value o Write your answer as a decimal.
Answers
The expected value formula would come in handy, it is
\(Expected-value=\Sigma\text{ xP(x)}\)Step 1
Total number of committee = 4 + 2 + 1 +3 = 10
Step 2
probality of picking of (26) = 4/10
probality of picking of (44) = 2/10
probality of picking of (93) = 1/10
probality of picking of (96) = 3/10
\(\begin{gathered} \text{Expected Value = }\frac{4}{10}\times26\text{ + }\frac{2}{10}\times\text{ 44 + }\frac{1}{10}\times93\text{ + }\frac{3}{10}\times\text{ 96 } \\ \text{ = }\frac{104}{10}\text{ +}\frac{88}{10}\text{ + }\frac{93}{10}\text{ + }\frac{288}{10} \\ \text{ = 10.4 + 8.8 + 9.3 + 28.8} \\ \text{ = 57.3} \end{gathered}\)
Therefore expected value = 57.3
Caroline went to the grocery store and bought bottles of soda and bottles of juice.
Each bottle of soda has 30 grams of sugar and each bottle of juice has 15 grams of sugar. Caroline purchased a total of 6 bottles of juice and soda which collectively contain 150 grams of sugar. Graphically solve a system of equations in order to determine the number of bottles of soda purchased, ∞, and the number of bottles of juice purchased, y.
Answers
The solution of the system of equations is the point of intersection (4, 2), as shown in the graph below.
Caroline bought 4 soda bottles.
Caroline bought 2 juice bottles.
How to Solve a System of Equations?In order to determine the solution to this problem, use the information given to create two equations.
Number of soda bottle = x.
Number of juice bottle = y.
First Equation for the total number of bottle that Kelvin bought
x + y = 6 --> eqn. 1
Second Equation 2 for the total sugar in the soda bottles and total sugar in juice bottles that equals 150 grams of sugar.
30x + 15y = 150
Simplify by dividing by 5
6x + 3y = 30 --> eqn. 2
Rewrite eqn. 1:
y = 6 - x
Solve simultaneously for the variables of x and y, by substituting the value of y into equation 2:
6x + 3(6 - x) = 30
6x + 18 - 3x = 30
3x + 18 = 30
3x = 30 - 18
3x = 12
3x/3 = 12/3
x = 4
Caroline bought 4 soda bottles.
Substitute x = 4 into equation 1 to find the value of y:
x + y = 6
4 + y = 6
y = 6 - 4
y = 2
Caroline bought 2 juice bottles.
The graph below shows the point of intersection, (4, 2), which is the solution.
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3,476 divided by 6 what is the answer WITH THE REMAINDER. No answer like 539.5 I want an answer like 531 r 3
Answers
Answer:
579 remainder 2
Step-by-step explanation:
Help anybody please help me
Answers
Answer:
3 units
Step-by-step explanation:
you count how many blocks they are from each other
Find the measureOf an act intercept by and inscribed whose measure is 75°Hent, draw a picture and label it,
Answers
From the arc-angle relationships, we know that the inscribed angle is half of the intercepted arc, that is,
\(75=\frac{arcAB}{2}\)Then, by moving the denominator to the left hand side, we get
\(\begin{gathered} 2\times75=arcAB \\ \text{arcAB}=150 \end{gathered}\)then, the arcAB measure 150 degrees.
Line segment YZ was used to translate A B CDE. YZ is 6.9 inches long. What is the length of
A A ' + B B ' + C C ' + DD' + E E '?
The length of A A ' + B B ' + C C ' + DD' + E E ' is inches.
Answers
Answer:
34.5
Step-by-step explanation:
you are adding 6.9 together , or 6.9 x 5 = 34.5
Find the solution set of (r + 2)2 + (r + 6)2 = 4
Answers
Answer:
4r+16
Step-by-step explanation:
2×r+2×2+2×r+2×6
2r+4+2r+12
4r+16
Please Hurry Brainestil
The table represents a linear relationship. x −2 0 1 y −4 4 8 Which equation represents the table? y equals one fourth times x minus 2 y equals negative one fourth times x plus 4 y = −4x− 2 y = 4x+ 4
Answers
Answer:
The correct equation is y = 4x + 4.
Please help i will give branliest!!!
Answers
Answer:b
Step-by-step explanation:
3.5*5*.5=8.75
)
A rectangular prism is filled with cubes as shown below. Which expression
represents the volume of the prism in cubic inches?
4 x 2 x 5
4+2 +5
5 in.
2 in.
(4+2) x 5
4 in.
= 1 cubic inch
4x (2+5)
