The expression −(4b)(4b)(4b) using positive exponents is -(4b)³
How to rewrite the expression using exponentsFrom the question, we have the following parameters that can be used in our computation:
−(4b)(4b)(4b)
Express properly
So, we have
−(4b) * (4b) * (4b)
5⁻¹² * 32⁻³ * 9⁻¹⁵
By using the definition of positive exponents, we have
−(4b) * (4b) * (4b) = -(4b)³
So, the solution is -(4b)³
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Encryption Matrices are commonly used to encrypt data. Here is a simple form such an encryption can take. First, we represent each letter in the alphabet by a number, so let us take < space > = 0, A = 1, B = 2, and so on. Thus, for example, "ABORT MISSION" becomes [1 2 15 18 20 0 13 9 19 19 9 15 14]. To encrypt this coded phrase, we use an invertible matrix of any size with integer entries. For instance, let us take A to be the 2 × 2 matrix 3 4 1 2 . We can first arrange the coded sequence of numbers in the form of a matrix with two rows (using zero in the last place if we have an odd number of characters) and then multiply on the left by A. Encrypted Matrix = 3 4 1 2 1 15 20 13 19 9 14 2 18 0 9 19 15 0 = 11 117 60 75 133 87 42 5 51 20 31 57 39 14 , which we can also write as [11 5 117 51 60 20 75 31 133 57 87 39 42 14]. To decipher the encoded message, multiply the encrypted matrix by A−1. The following exercise uses the above matrix A for encoding and decoding. Use the matrix A to encode the phrase "GO TO PLAN B".
Answer:
ok
Step-by-step explanation:
HELPPPPPPPP I NEED HELP ON THIS.....Choose the correct math expression for: 45 more than the difference of 35 and 13.
Answer:is it 45+(35-13)
Step-by-step explanation:
not 100 percent sure
This year you earned $75,500. Last year you earned $72,400. What was the rate of change on your earnings since last year
Answer:
4.28%
Step-by-step explanation:
We Know
Last year you earned $72,400
This year you earned $75,500
What was the rate of change in your earnings since last year?
We Take
(75,500 ÷ 72,400) x 100 ≈ 104.28%
Then We Take
104.28 - 100 = 4.28%
So, the earning increased by about 4.28%.
can you help me find x and y
please and thank you!!!
and if you could explain that will be appreciated! :D
4x + y = 42 => y = 42 - 4x
3x - 2y = 26 => 3x - 2×(42 - 4x) = 26 => 3x - 84 + 8x = 26
=> 11x - 84 = 26 => 11x = 110 => x=10
y = 42 - 4x => y = 42 -4×10 => y= 42 - 40 => y= 2
Answer:
\(x = 10\) and \(y = 2\)
Step-by-step explanation:
That appears to be a parallelogram, so we can make the assumption that one side of the shape is equal to the side opposite to it because they are parallel lines.
With that assumption, we can set-up the equations, namely
\(42 = 4x+y\) (eq. 1)
\(26 = 3x-2y\) (eq. 2)
We can solve for x and y either through substitution or elimination, and it seems like elimination could be a faster way to do it.
Multiply eq. 1 by 2 and add it to eq. 2
\(84 = 8x+2y\\26 = 3x-2y\)
-> \(110 = 11x\)
\(x = 10\)
And then we can substitute it back to any equation, and the result will be
\(y = 2\).
Detailed results will be available only after the quiz has closed.
Question 8
5 pts
ve
Education
Dale conducted a survey of students in his classes to see the distribution of eye color.
The results are shown:
Eye color
Number
Blue
12
Brown
58
Green
2
Hazel
8
If the distribution of eye color in Dale's grade is similar to the distribution in his classes,
about how many of the 360 students in his grade would be expected to have brown
eyes?
0 54
Answer: 10%
Step-by-step explanation:
can i have brainliest
suppose that as a follow up question you asked all the students who were graduating with stem degrees if they planned on working in academia. out of the 95 students graduating with stem degrees, 9 report they plan on working in academia. build a 95% confidence interval for the true percentage of students graduating with stem degrees that plan on working in academia. make sure to interpret your interval and check any necessary conditions. (hint: make sure to use an appropriate method to do this)
The sample size must be more than 30 and the sample must be chosen at random for this confidence interval to hold true. The sample size in this example is 95, and the students were chosen at random, thus both of these requirements are satisfied.
How do percentages work?Calculating a percentage involves dividing an item by its sum and multiplying the result by 100. (Value/Total Value)100% is the formula for calculating percentages.
How do you find the percentage?We must divide the value by the entire value to find the percentage, and then multiply the resulting number by 100.
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which of the following is not a perfect cube? 1: 2197 2: 512 3: 2916 4: 343 Which of the following numbers is a perfect cube? * 1: 1525 2: 1728 3: 1458 4: 3993
Answer:
no 4 is not perfect cube and no 2 is perfect cube
Answer:
3. 2916
2. 1728
Step-by-step explanation:
1: 2197 = 13³
2: 512 = 8³
3: 2916 = 2² × 3² × 61
4: 343= 7³
==============
1: 1525 = 5² × 61
2: 1728 = 12³
3: 1458 = 2 × 9³
4: 3993= 3 × 11³
Let A = { all odd numbers) and B = {1,3,5,7). Is B a subset of A?
Answer:
Step-by-step explanation:
Yes
{1,3,5,7} contains the first 4 odd numbers.
{1,2,3,5,7} would not be a subset.
Answer:
yes
Step-by-step explanation:
A={all odd numbers}={1,3,5,7,...}
B={1,3,5,7}
B⊂A
if you take away 25 from a number you will be left with two and halftimes 30. what is the number?
Help please! Which of the following tables represents a relation that is a function? Explained answer please
A
B
C
D
Answer:
Step-by-step explanation:
THE ANSWER TO YOUR QUESTION IS C.
Negative values pertain to ounces under 16. Find the probability that a box of cereal will be: a.more than one ounce underweight. b. neither underweight a. nor more than 1 ounce overweight. tly 16 ounces. C. exactly 16 ounces
Probability is simply how likely something is to happen. There can be many probability of the same thing to occur in future. the probability that a box of cereal will be:
A. The probability that a box of cereal will be more than one ounce underweight is equivalent to the probability of getting a weight less than 15 ounces. Using a standard normal distribution table or calculator, we can find that this probability is approximately 0.0228 or 2.28%.
B. The probability that a box of cereal will not be underweight is equivalent to the probability of getting a weight greater than or equal to 16 ounces. Using a standard normal distribution table or calculator, we can find that this probability is approximately 0.5 or 50%.
C. The likelihood that a package of cereal will weigh less than or equal to 17 ounces is the same as the likelihood that it won't be more than 1 ounce overweight. This chance can be calculated using a typical normal distribution chart or calculator as 0.9772 or 97.72%.
D. Because weight is a continuous variable with an infinitesimally tiny chance of attaining any precise value, the likelihood of receiving exactly 16 ounces is very low. The area under the normal distribution curve between 15.5 and 16.5 ounces, or roughly 0.3829 or 38.29%, can be used to determine the chance.
Possibility or probability is all game of occurrence of the thing.
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Select all of the following expression that result in rational number
Answer:
the answer is only A (I think so...)
how to solve y = 8x - 9
Answer:
-72
Step-by-step explanation:
The answer is -72 because 8 * -9 = -72, I can't explain it to you any other way ;-;
Answer:
what are you looking for? the value of y or x? or do you need it graphed?
Step-by-step explanation:
Need help with proofs, anyone know how?
Segments MS and QS are therefore congruent by the definition of bisector. Therefore, the correct answer option is: D. MS and QS.
What is a perpendicular bisector?In Mathematics and Geometry, a perpendicular bisector is a line, segment, or ray that bisects or divides a line segment exactly into two (2) equal halves and forms an angle that has a magnitude of 90 degrees at the point of intersection.
This ultimately implies that, a perpendicular bisector bisects a line segment exactly into two (2) equal halves, in order to form a right angle that has a magnitude of 90 degrees at the point of intersection.
Since line segment NS is a perpendicular bisector of isosceles triangle MNQ, we can logically deduce the following congruent relationships;
MS ≅ QSNS ≅ RSMN ≅ QN ∠NMS and ∠NQSΔMNS ≅ ΔQNSRead more on perpendicular bisectors here: brainly.com/question/19154899
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Complete Question:
The proof that ΔMNS ≅ ΔQNS is shown. Given: ΔMNQ is isosceles with base MQ, and NR and MQ bisect each other at S. Prove: ΔMNS ≅ ΔQNS
We know that ΔMNQ is isosceles with base MQ. So, MN ≅ QN by the definition of isosceles triangle. The base angles of the isosceles triangle, ∠NMS and ∠NQS, are congruent by the isosceles triangle theorem. It is also given that NR and MQ bisect each other at S. Segments _____ are therefore congruent by the definition of bisector. Thus, ΔMNS ≅ ΔQNS by SAS.
NS and NS
NS and RS
MS and RS
MS and QS
If a ring costs a jeweler $2100, at what price should it be sold to yield a profit of 50% on the selling price?
Drew has two cats. One cat weighs 17 pounds, and the other one weighs 12 1/2 pounds. Audrey’s dog weighs 33 pounds. What is the difference in ounces between Audrey’s dog and the combined weights of Drew’s cats?
Answer: 3.5 pounds
Step-by-step explanation:
17+12.5=29.5
33-29.5=3.5
What is the equation written in vertex form of a parabola with a vertex of (9, -1) that passes through (7. 7)?
O
A. y = 2(x - 992 - 1
B. y = 2(x + 1)2 - 9
O C. y = 2(x - 7)2 + 7
D. y = 7(x - 9)2 - 1
Answer:
\(y = 2\, (x - 9)^{2} - 1\).
Step-by-step explanation:
If the vertex of a parabola is \((h,\, k)\), there would exist a constant \(a\) (\(a \ne 0\)) such that the following would be an equation for this parabola:
\(y = a\, (x - h)^{2} + k\).
The equation above is in the vertex form.
In this question, the vertex of this parabola is \((9,\, -1)\). (Such that \(h = 9\) and \(k = -1\).) Therefore, the equation of this parabola in the vertex form would be:
\(\text{$y = a\, (x - 9)^{2} + (-1)$ for some $a \ne 0$}\).
It was also given that the point \((7,\, 7)\) is on the parabola. In other words, if \(x = 7\) and \(y = 7\), the equation of this parabola (\(\text{$y = a\, (x - 9)^{2} + (-1)$}\)) should be satisfied. In other words:
\(7= a\, (7 - 9)^{2} + (-1)\).
Solve this equation for \(a\).
\(a = 2\).
Therefore, the equation of this parabola in vertex form would be\(y = 2\, (x - 9) + (-1)\), which is equivalently \(y = 2\, (x - 9)^{2} - 1\).
Mrs. Liu is mixing glue and shaving cream to make snowman puff paint for her art class. The ounces of glue to ounces of shaving cream must have a ratio of 7:15. If she is mixing 56 ounces of glue, how much shaving cream does she need?
The ounces of shaving cream will be 230 ounces.
How to illustrate the ratio?Ratio in Mathematics simply demonstrates how many times one number can be able to fit into another number. It should be noted that ratios contrast two numbers by dividing them. In this case, A/B will be the formula if one is comparing one variable (A) to another variable (B).
In this case, Mrs. Liu is mixing glue and shaving cream to make snowman puff paint for her art class. The ounces of glue to ounces of shaving cream must have a ratio of 7:15. If she is mixing 56 ounces of glue ,the shaving cream will be:
= 56 ÷ 7/15
= 56 × 15/7
= 120
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16 e-mails to 6 text messages - 10 e-mails to 4 text messages proportional or non proportional
Describe in words the transformations of the graph of the parent function f(x) = x2 that
would result in the graph of
g(x) = 3(x - 5)^2 + 2.
Describe in words the transformations of the graph of the parent function f(x) = x2 that
would result in the graph of
g(x) = 1/3(x + 6)^2- 4.
2. The transformations are given as follows:
Vertical stretch by a factor of 3.Translation right 5 units.Translation up 2 units.3. The transformations are given as follows:
Vertical compression by a factor of 3.Translation left 6 units.Translation down 4 units.How to define the transformations?For item 2, the transformations in this problem are given as follows:
Vertical stretch by a factor of 3, due to the multiplication by 3.Translation right 5 units, as x -> x - 5.Translation up 2 units, as y -> y + 2.For item 3, the transformations are given as follows:
Vertical compression by a factor of 3, due to the multiplication by 1/3.Translation left 6 units, as x -> x + 6.Translation down 4 units, as y -> y - 4.More can be learned about translations at brainly.com/question/28174785
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Help me please! Look at this picture.
Diana, Elsa, Flora and Hannah agreed to share the cost of a present equally for their mother. Hannah did not bring her money so the other 3 sisters paid for her share. Flora paid 4/5 of what Diana and Elsa paid. Diana paid $10 less than Elsa. The ratio of Diana and Elsa share is 1:4. When they reached home, Hannah returned her sisters' their share of money. Hannah returned Flora $84. (a) How much did Diana and Elsa pay altogether? (b) How much did Hannah pay Diana?
Using proportions, it is found that:
a) Diana and Elsa paid $105 altogether.
b) Hannah paid Diana $21.
What is a proportion?A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct(when both increase or both decrease) or inverse proportional(when one increases and the other decreases, or vice versa), can be built to find the desired measures in the problem, or equations to find these measures.
Hannah returned Flora $84, and Flora paid 4/5 of what Diana and Elsa paid, hence the amount Diana and Elsa received by Hannah is given as follows:
4/5x = 84
0.8x = 84
x = 84/0.8
x = 105.
Hence Diana and Elsa paid $105 altogether.
For item b, we have that the ratio of Diana and Elsa share is 1:4, hence Diana got 1/5 of the amount paid by Hannah, hence:
1/5 x 105 = 21.
Hannah paid Diana $21.
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I WILL MARK BRAINLIST
Answer:e and f
Step-by-step explanation:
I can take medication that is prescribed to my parents because it is family.
True
False
Answer:
False
Step-by-step explanation:
Because it is your family, does not mean you should still take it. Yes genes are transmittable and inheritable, but that doesnt mean medication should be shared unless its a guarantee for the same issue. The answer if False.
A Bakery made 423 sandwiches in one day. What is that number rounded to the nearest hundred sandwiches?
Answer: 400
Step-by-step explanation:
Choose the inequality sign that will make this inequality true.
11/54____7/11
>
<
=
Jermaine kicked a soccer ball at a speed of 24 feet per second. If the ball never leaves the ground, then it can be represented by the function H(t) = −16t2 + 24t. Determine the time the ball traveled. (1 point) t = 24 seconds t = 8 seconds t = 1.5 seconds t = 0.67 seconds
The time that the ball traveled is given as follows:
1.5 seconds.
How to obtain the time traveled by the ball?The quadratic function determining the ball's height after t seconds is given as follows:
H(t) = -16t² + 24t.
The roots of the quadratic function in this problem are given as follows:
-16t² + 24t = 0.
16t² - 24t = 0
8t(2t - 3) = 0.
Hence we apply the factor theorem as follows:
8t = 0 -> t = 0.2t - 3 = 0 -> 2t = 3 -> t = 1.5.Hence the time is given as follows:
1.5 - 0 = 1.5 seconds.
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The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass. Starting with grams of a radioactive isotope, how much will be left after 4 half-lives?
After 4 half-lives, only 1/16th (or 0.0625) of the initial amount of the radioactive isotope will remain.
The amount of a radioactive isotope remaining after a certain number of half-lives can be calculated using the formula:
Amount remaining = Initial amount × (1/2)^(number of half-lives)
In this case, we are given the initial amount as "grams" and we want to find out the amount remaining after 4 half-lives.
So, the equation becomes:
Amount remaining = Initial amount × (1/2)^4
Since each half-life reduces the quantity to half, (1/2)^4 represents the fraction of the initial amount that will remain after 4 half-lives.
Simplifying the equation:
Amount remaining = Initial amount × (1/16)
Therefore, after 4 half-lives, only 1/16th (or 0.0625) of the initial amount of the radioactive isotope will remain.
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The temperature in Austria one morning was 5°C at 08:00 and increased by 2°C every hour until 12:00. What will the temperature be at 11:30?
Answer:
12C
Step-by-step explanation:
4 hours from 12-8= 4 hours
4x2=8
8+5=13
13-1 C because its 30 mins difference
12C
Based on the plot, approximately how many practice puzzles
per week do members solve if they finish the contest puzzle
in one hour?
a 6
b 10
c 4
d 2
Based on the plot, the number of practice puzzles per week that members solve if they finish the contest puzzle
in one hour is c 4
How to explain the scatterplotThe line of best fit for the scatter plot shows that there is a positive correlation between the number of practice puzzles solved per week and the time it takes to solve a contest puzzle. This means that as the number of practice puzzles solved per week increases, the time it takes to solve a contest puzzle decreases.
If a member finishes a contest puzzle in one hour, they are on the line of best fit. This means that they solve approximately 4 practice puzzles per week.
The other options are incorrect. Option a is too high, option b is too low, and option d is not on the line of best fit.
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