9514 1404 393
Answer:
see the attachment
Step-by-step explanation:
There are no roots, fractional powers, or denominators containing variables, so each of these expressions is the sum of multiples of products of variables to integer powers. (One is a constant.) That makes each expression a polynomial. Some polynomials can be further classified by their degree.
The degree is the highest sum of powers of the variables in the terms. For example, the term a^2·b·c^2 has variables with powers 2, 1, and 2. The sum of those powers is 2+1+2 = 5, so this is a term of degree 5.
A constant is a term with no variables.
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It is customary in algebra problems to use variables that are a single lower-case letter. Sometimes, a variable may be represented by a letter in uppercase, or in a special font or language (usually Greek). Sometimes, it may be a word or phrase. Here, we assume each variable is one letter, so xyz is the product of three variables.
Perhaps the table below answers the questions you are asking about these expressions.
Can you please help me with this.. you only have to do the first one (a)
Answer:
-18
Step-by-step explanation:
9/4 x -8/1
-72/4
-18
Shayla tutors middle school students and high school students. She charges a different rate for each. Last week, she tutored middle school students for 5 hours and high school students for 12 hours. This week, she tutored middle school students for 6 hours and high school students for 10 hours. She earned $400 last week and $370 this week. How much does she charge each?
Answer:
Shayla charges $20 per hour for middle school students and $25 per hour for high school students.
Step-by-step explanation:
System of Equations
Let's call:
x = Shayla's hourly charge for middle school students
y = Shayla's hourly charge for high school students
Last week, Shayla tutored middle school students for 5 hours and high school students for 12 hours. The total earning was 5x+12y. She earned $400 last week, thus:
5x + 12y = 400 [1]
This week, she tutored middle school students for 6 hours and high school students for 10 hours. The total earnings were 6x+10y and it represented $370, thus:
6x + 10y = 370
Dividing by 2:
3x + 5y = 185 [2]
We have formed the system of equations:
5x + 12y = 400 [1]
3x + 5y = 185 [2]
Multiply [1] by -3 and [2] by 5:
-15x - 36y = -1200
15x + 25y = 925
Adding both equations:
-11y = -275
Dividing by -11:
y = -275/(-11) = 25
y = 25
Substituting in [1]:
5x + 12*25 = 400
5x + 300 = 400
5x = 400 - 300 = 100
x = 100/5 = 20
x = 20
Shayla charges $20 per hour for middle school students and $25 per hour for high school students.
Decrease £16855.21 by 3.5%
Answer:
16265.27765
Step-by-step explanation:
3.5 percent of 16855.21 is 589.93235
16855.21-589.93235=16265.27765
please mark me as brainliest! i'd really appreciate it<3
A man spent 58% of his income and the amount of money left was $210.00.Find his income.
Answer:
500 dollars is his total income
Step-by-step explanation:
8x =35 what is the value for xx that makes the equation true?
Express 10 : 12 as a decimal.
(Round to the nearest hundrerdth)
Answer:
pretty sure it's .833
Step-by-step explanation:
Solve the equation. y/8 = 5. y=
Answer:
y = 40
Step-by-step explanation:
Given
[tex]\frac{y}{8}[/tex] = 5 ( multiply both sides by 8 to clear the fraction )
y = 8 × 5 = 40
simplify each expression (5p - 3)+(2p2 - 3p)
Answer:
[tex](5p - 3) + (2 {p}^{2} - 3p) \\ = 2 {p}^{2} + (5 - 3)p - 3 \\ = 2 {p}^{2} + 2p - 3[/tex]
Answer: the answer is 2p^2+2p−3
Step-by-step explanation:
1. Combine Like Terms: these are 5p and 3p
2. which gives us 2p
3. Always put the squared first and the constant (without any variable last)
which makes 2p^2+2p-3
Velma is analyzing spending habits of the gang. She find a mean monthly discretionary expense of $70 spent on having meals out with friends. The standard deviation of the distribution is 5. Give the range of amounts within 1 standard deviation of the mean and explain what percent of friends will have be within 1 standard deviation if it is a normal distribution.
Answer:
im here for the points
Step-by-step explanation:
Mrs. Apple noticed that, in her algebra class of thirty-two students, eight were
left-handed. What is the ratio of left-handed to right-handed students?
2x + 1 = 9
is that the answer ?
Answer:
yes
Step-by-step explanation:
because 9-1=8/2 equals 4 so2x4+1=9
(Exponential Models)
a.) Suppose you invest $500 in a savings account that pays 3.5% annual interest. How much will be in the account after 5 years?
$_ _ _ . _ _
b.) Suppose you invest $500 in a savings account that pays 3.5% annual interest. When will the account contain at least $650?
After _ years.
Please help with this!!
Answer:
(4x-6)(4x-6)
Step-by-step explanation:
expand 4x×4x-6×6
Lane bought 12 pencils for
$0.39 each. What was the total cost of the
pencils before sales tax was added?
Answer:
4.68
Step-by-step explanation:
simple math and simple multiplication or division
all the multiples of 5 are multiples of 10
Answer:
False
Step-by-step explanation:
This is the answer because:
1) All the multiples of 5 are not multiples of 10 because multiples of 10 end in zeros and not all the multiples of 5 end in a zero.
Therefore, the answer is false.
Hope this helps! :D
Answer: false
Step-by-step explanation: say for instance 25 (5•5) is not a multiple of 10
Please Help ASAP!!!!!!!!!!!!
Answer:
1. 5b-3
2. 6-b
3. 7-5b
4. 6+4b
-3x + 4 = 6
Find the solutions
Answer:
Use Mathaway and write the equation
Step-by-step explanation:
Answer:
x = -2.3
Step-by-step explanation:
-3x + 4 = 6
Subtract 4 from both sides.
-3x = 2
Divide both sides by -3
x = -2/3
Which shaded region is larger? Explain your reasoning..
Answer:
It's B because If you cover the blue you will see space that looks like a triangle. Do the same to A. You see how in B the Triangle looking thing is lower than A because A triangle thing is like more up and wider so it has space. Also B has a little space than A
Step-by-step explanation:
44.5 + g = 50 answer
Answer:
[tex]44.5 + g = 50 \\ g = 50 - 44.5 \\ g = 5.5[/tex]
Please I need ur help, ASAP!!!! 20 points
The graph below represents which system of inequalities? (2 points)
graph of two infinite lines that intersect at a point. One line is solid and goes through the points 0, 2, negative 2, 4 and is shaded in below the line. The other line is solid, and goes through the points 0, 2, 2, 0, and is shaded in below the line.
A: y ≤ −2x + 3
y ≤ x + 3
B: y ≥ −2x + 3
y ≥ x + 3
C: y ≤ −3x + 2
y ≤ −x + 2
D: y > −2x + 3
y > x + 3
Are the ratios 5:4 and 17:12 equivalent?
Answer:
yes
Step-by-step explanation:
These fractions are equivalent because they can be divided by the same number... i think
select the equation that represents the correct answer. bill divided the 32 ants in his farm into groups. there are 8 ants in each group. how many groups are in the farm?
(A) 8x = 32
(B) 32 - X = 8
(C) X + 8 = 32
(D) 32x = 8
Answer:
dont cheat
Step-by-step explanation:
i will mark brainlist if right!!!
Step-by-step explanation:
b2 =5
.....................
john drops a probe into a lake. the elevation of the probe changes by -1 1/2 feet every second. the probe takes 50 seconds to reach the bottom of the lake. how deep is the lake show your work
Answer:
The lake is 75 ft deep
Step-by-step explanation:
Here , we want to get the depth of the lake
mathematically, we can have this as the rate at which the elevation of the probe changes multiplied by the time it took the probe to reach the bottom of the lake
That would be;
3/2 * 50 = 75 feet
Which number below best represents a depth of seven hundred and five-tenths meters below the ground?
A. -700 5/100
B. -700 5/10
C. 700 5/10
D. 700 5/100
sort the cities from closest to farthest from sea level.
Please help me
It took Jude 420 seconds to walk home from school. How many minutes did it take him?
9 minutes
6 minutes
7 minutes
5 minutes
Answer:
7 minutes
Step-by-step explanation:
420/60 = 7 minutes
Answer:
7
Step-by-step explanation:
420/60 which equals 7 mim
True or false: Mitosis produces genetically identical cells
Answer:
Mitosis occurs in all body cells (somatic cells) except reproductive organs (meiosis). 1. Mitosis results in TWO genetically IDENTICAL cells.
Step-by-step explanation:
In a standard 52-card deck, half of the cards are red and half are black. The 52 cards are divided evenly into 4 suits: spades, hearts, diamonds, and clubs. Each suit has three face cards (jack, queen, king), and an ace. Each suit also has 9 cards numbered from 2 to 10. 7.
Dawn draws 1 card, replaces it, and draws another card. Is it more likely that she draws 2 red cards or 2 face cards?
Answer:
It is more likely she draws 2 red cards
Step-by-step explanation:
Given that:
Number of red d cards in deck = 26
Number of face cards = 4 * 3 = 12 face cards
If two cards are drawn with replacement ;
Probability = (required outcome / Total possible outcomes)
P(1st card red) = 26 /52) = 1/2
P(2nd card red) = 26 /52 = 1/2
P(1st card red) * P(2nd card red)
1/2 * 1/2 = 1/4 = 0.25
P(1st card face card) = 12/52 = 3/13
P(2nd card, face card) = 12/52 = 3/13
P(1st card face card) * P(2nd card face card)
3/13 * 3 /13 = 9/169 = 0.053
0.25 > 0.053
It is more likely she draws 2 red cards
HELPPP PLEASE THIS IS DUE IN 20 MINUTES, GIVE ME THE ACTUAL ANSWERS OR ELSE I WILL REPORT
Answer:
Step-by-step explanation:
1.
2.
3.