The table shows the steps for solving the given inequality for x. −2(3−2x)
Answers
Answer:
4x-6
Step-by-step explanation:
so we know that everything in a parentheses goes first. so we first will rearrange it into this -2(-2x+3)
Remember a negative times a negative is a positive. So -2 × -2x is 4x and remember that a negative times a positive is a negative so -2 × 3 is -6
Related Questions
Which expression represents twice a number, n, increased by 7?
Answers
Answer:
2n + 7
Step-by-step explanation:
'2 twice a Number N' , Is 2n
'Increased By 7' Add 7 .
That Will be Your Answer! Please Rate Brainiest!
-Aslina <3
Answer: 2n+7
Twice the number n = 2n
Increased by 7= Adding 7
So the answer would be 2n+7
A study was conducted to determine if the salaries of the professors from two neighbouring universities were
equal. A sample of 20 professors from each university was randomly selected. The mean from the first university
was $109,100 with a population standard deviation of $2300. The mean from the second university was $110,500
with a population standard deviation of $2100. Assume that the distribution of professor salaries, at both
universities, are approximately normally distributed. Level of significance = 0.05.
Use the four-step P-value approach and test the claim that the salaries from both universities are equal.
Answers
Answer:
After calculating values from test statics we come to know that value of if null hypothesis is true then it will rejected
As critical values of z is ±1.96 after apply the test statics formula , we get the value of z that is - 4.50 As we consider the equation that
H₀ > z
Apply test statistic we fine the true value . So there is sufficient evidence to reject the claim.
Step-by-step explanation:
critical values z₀ = ±1.96; standardized test statistic z ≅ -4.50;
reject H₀
There is sufficient evidence to reject the claim.
36x-28 factor expression using gcf
Answers
Answer:
4(9x-7)
Step-by-step explanation:
Answer:
4(9x-7)
Step-by-step explanation:
circle are congruent if there have some
fill in the blanks
Answers
Answer:
.I would like to help but....!!!!
there is no diagram!
5. Suppose f(x) = x² + x - 1, simplify the following:(a) f(x + h) =(b) f(x+h) - f(x) =(c) Compute the difference quotient(f(x+h)-f(x))/hSimplify until the h in the denominator is canceled
Answers
(a) Here we just need to switch every x by "x + h", so we have:
\(\begin{gathered} f(x)=x^2+x-1 \\ f(x+h)=(x+h)^2+(x+h)-1 \\ f(x+h)=x^2+2xh+h^2+x+h-1 \end{gathered}\)(b) Subtracting the previous expression from f(x), we have:
\(\begin{gathered} f(x+h)-f(x)=x^2+2xh+h^2+x+h-1-(x^2+x-1) \\ f(x+h)-f(x)=2xh+h^2+h \end{gathered}\)(c) Now, dividing the previous result by h, we have:
\(\frac{f(x+h)-f(x)}{h}=\frac{2xh+h^2+h}{h}=2x+h+1\)Question 3(Multiple Choice Worth 2 points) (01.01 MC) What is seven hundred thousand one hundred eighty-two and nine thousandths written in expanded form 700,000+100 + 80 +2 +0.009 700,000+ 10,000+8,000 + 200 +0.9 7,000,000+ 100,000+ 9,000 + 80 +2 7,000,000+ 100,000+80,000 +2 +0.09
Answers
The number in an expanded form is 700,000 + 182 + 0.009
How to write the number in an expanded form?The number is given as:
seven hundred thousand one hundred eighty-two and nine thousandths
Next, we split the numbers:
seven hundred thousand = 700,000
one hundred eighty-two = 182
and nine thousandths = 0.009
Next, we add the numbers
700,000 + 182 + 0.009
Hence, the number in an expanded form is 700,000 + 182 + 0.009
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What is the median of 6, 7, 10, 12, 15? 12 10 9.6
Answers
Answer:
10
Step-by-step explanation:
it is the middle value after you have put the numbers in numerical order
A lot of points. PLEASE HELP! I will mark brainliest. Whoever gets it right first.
Answers
- the last one is your answer, you can use the small lines on the side of triangle to help you know which ones match with each other
A representative sample of 50 students from a high school is surveyed. Each student is asked what science class he or she
is taking
This table shows the responses.
Science Class
Physics
Chemistry
Blology
Earth Science
Health Science
Number of
Students
6
10
18
4
12
Select all of the statements that are valid based on the survey results..
Answers
The statements that are valid based on the survey results are:
About 20% of the students are taking chemistry.
About twice as many students are taking health science than are taking physics.
For every 150 students we could predict that at least 18 of the students are taking physics.
Option A, B, and C are correct answer.
What is an expression?An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.com
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
About 20% of the students are taking chemistry:
To calculate the percentage of students taking chemistry, we divide the number of students taking chemistry by the total number of students surveyed and multiply by 100:
10/50 x 100% = 20%
Therefore, the statement "About 20% of the students are taking chemistry" is valid based on the survey results.
About twice as many students are taking health science than are taking physics:
The number of students taking health science is 12, and the number of students taking physics is 6. To see if twice as many students are taking health science than physics, we can compare the ratios:
Health science : Physics = 12 : 6 = 2 : 1
Since the ratio is 2:1, we can conclude that the statement "About twice as many students are taking health science than are taking physics" is valid based on the survey results.
For every 150 students, we could predict that at least 18 of the students are taking physics:
To make this prediction, we need to calculate the proportion of students taking physics based on the survey results:
6/50 = 0.12
To predict how many students are taking physics in a larger population, we can multiply the proportion by the size of the population:
0.12 x 150 = 18
Therefore, the statement "For every 150 students we could predict that at least 18 of the students are taking physics" is valid based on the survey results.
For every 25 students, we could predict that at least 4 of the students are taking Earth Science:
To make this prediction, we need to calculate the proportion of students taking Earth Science based on the survey results:
4/50 = 0.08
To predict how many students are taking Earth Science in a larger population, we can multiply the proportion by the size of the population:
0.08 x 25 = 2
Therefore, the statement "For every 25 students we could predict that at least 4 of the students are taking Earth Science" is not valid based on the survey results, as we would predict that at least 2 students are taking Earth Science, not 4.
Therefore,
The statements that are valid based on the survey results are:
About 20% of the students are taking chemistry.
About twice as many students are taking health science than are taking physics.
For every 150 students we could predict that at least 18 of the students are taking physics.
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what is the value when x = 2?
i need this asap!
Answers
Answer:
y=6!
Step-by-step explanation:
you can easily see it on the graph. on the x axis, 2 is equivalent to 6
Answer:
When x is 2 y equals 6.
Step-by-step explanation:
You go right on the graph two units then go up the y axis till the line intersects the lines. In this case the graphed point is (2,6)
Peyton had a balance of -$21.46 in his bank account according to his
last statement. He immediately deposited $35.50 into his account.
What was Peyton's account balance AFTER he made the deposit?
Answers
Answer: $14.04
Step-by-step explanation: -21.46+35.50 = 14.04
Use the graph to answer the question.
5
4
3
2
1
0
--1-
A'
A
1
Oy-axis
Ox-axis
Ox=2
2
Oy=2
B
3
В'
4
5
D
6 7. 8
Determine the line of reflection used to create the image.
D
C
C'
Answers
Answer:
x-axis
Step-by-step explanation:
I'm 99.9% it's right
I'm really sorry if not!
hope this helps!
have a good day/night!
The entire graph of the function h is shown in the figure below.
Write the domain and range of h as intervals or unions of intervals.
Answers
The domain of the function f is [-5. -2] U [ 1, 2].
The range of the function f is [-4, 3].
What is a function?A function is defined as a relation between a set of inputs having one output each.
The inputs are called the domain of the function.
The outputs are called the range of the function.
We have,
A graph of the function f.
We can see two curves on the graph.
One curve:
Domain = [1, 2]
Range = [-4, 0]
Another curve:
Domain = [-5, -2]
Range = [-3, 3]
We can combine both the curves domain and the range.
Domain = [-5. -2] U [ 1, 2 ]
Range = [-4, 3]
Thus,
The domain of the function f is [-5. -2] U [ 1, 2].
The range of the function f is [-4, 3].
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I don’t know the answer
Answers
I NEED HELPP
1. Graph the numbers on the number line
1. Use <, > or = to compare
2. Graph the numbers on the number line
3. Use <, > or = to compare
4. Write in order from least to greatest
5. Write in order from greatest to least
Answers
Comparing the √17 and 29/7 using <, > or = , we have √17 < 29/7.
Define comparing.Mathematical number comparison is the process or method of comparing two numbers to determine whether one is less, bigger, or equal to the other. The comparison symbols for numbers are "=", which stands for "equal to," "=", which stands for "greater than," and " ", which stands for "less than." Comparing amounts is a technique for figuring out how much to compare units in relation to a different standard or reference unit. A common reference point is necessary for two comparing units to be compared; otherwise, they cannot be compared.
Given,
Comparing the following using <, > or = ,
Numbers:
√17 and 29/7
For √17
Simplifying,
√17 = 4.123
For 29/7
29/7 = 4.14
√17 < 29/7
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Gabriel started a job as a mechanic and is being paid $12.25 an hour. The company suggested that he would be working 300 days and 8 hours each day. What should be Gabriel’s gross annual salary?
Answers
Answer:
$29,400
Step-by-step explanation:
12.25 × 8 × 300 = 29,400
Rationalize the denominator and simplify.
6
15 - 3
Answers
Answer:
\(a)6 = \frac{6}{1} = 6 \: \: \: b)15 - 3 = \frac{15}{3} = 5\)
\(16 \div81 \: - 3 \div 4\)
please note that this is exponents
Answers
Answer:
16/81-3/4[
=[16×4-3×81]/[81×4]=-179/324 is your answer
What is the simplified form of the following expression (y8) (y2)
Answers
Answer:
if you meant y^8*y^2 then y^10 if you meant 8y*2y then 16y^2
Can you guys tell me this is very important
Answers
Answer:
2 weeks
Step-by-step explanation:
14. Provide a written description of the complement of the given event.
of ten adults, at least one of them has high blood pressure.
None of the adults have high blood pressure.
At most one of the adults has high blood pressure.
All of the adults have high blood pressure.
Nine of the adults have high blood pressure
Answers
Answer:
At most one of the adults has high blood pressure.
Step-by-step explanation:
Determine the solution to the system of equations graphed below and explain your reasoning complete sentences: glx) = -2x - 3 f(x) - kx+1l-4
Answers
Answer:
I hope it helps you
PLEASE MARK ME BRAINLIEST
how much is 70% of 140 ?
thankyou ~
Answers
Answer:
98
Step-by-step explanation:
Of means multiply
70% * 140
.70 * 140
98
If 5(x-6y) = 50y,what is the value of x in terms of y? PLS EXPLAIn
E. 16y
F. 15y
G. 11 2/5y
H.11y
EXPLAIN CORRECT ANSWER AND EXPLANATION GETS BRAINIEST
Answers
Answer:
E. 16y
Step-by-step explanation:
Given equation:
5(x - 6y) = 50y
Expand the brackets using
Distributive Property for subtraction: a(b - c) = ab - ac
⇒ 5 · x - 5 · 6y = 50y
⇒ 5x - 30y = 50y
Add 30y to both sides:
⇒ 5x - 30y + 30y = 50y + 30y
⇒ 5x = 80y
Divide both sides by 5:
⇒ 5x ÷ 5 = 80y ÷ 5
⇒ x = 16y
Find the volume of the solid generated by revolving the region bounded by the graphs of the equations and inequalities about the y-axis.x2 - y2 = 64, x \geq 0, y = -8, y = 8
Answers
Answer:
The Volume of the solid
V = π(1365.33) cubic units
Step-by-step explanation:
Step(I):-
Given curves are x²- y² = 64 , x=0 , y=-8 and y=8
The given function x = f(y)
x²- y² = 64
x² = y² +64
The Volume of the solid generating by revolving the region bounded by the graphs of the equations
\(V = \pi \int\limits^a_b {x^2} \, dx\)
Step(ii):-
the limits are y = a = -8 and y = b=8
The Volume of the solid
\(V =\pi \int\limits^8_8 {(y^2+64)} \, dx\)
\(V = \pi (\frac{y^{3} }{3} + 64 y )_{-8} ^{8}\)
\(V = \pi (\frac{(8)^{3} }{3} + 64 (8) - (\frac{(-8)^{3} }{3} +64(-8) )\)
\(V = \pi (\frac{(8)^{3} }{3} + 64 (8) - (\frac{(-8)^{3} }{3} +64(-8) ) = \pi (\frac{1024}{3} + 1024)\)
V = π(1365.33) cubic units
if the sin 30 = 1/2, then which statement is true?
Answers
Answer:
cos 60° = 1/2 because the angles are complements.
Step-by-step explanation:
Find the slope of the line that passes through (10,8) and (1,9).
Answers
Answer:
\(-\frac{1}{9}\)
Step-by-step explanation:
between (1, 9) and (10, 8), the x moves by 9 and y moves by -1
The slope is equal to: \(\frac{\Delta y}{\Delta x} = \frac{-1}{9} = -\frac{1}{9}\)
Answer:
-1/9
Step-by-step explanation:
plug in the slope formula:
y-y
-----
x-x
=9-8
-------
1-10
=-1/9
Multiply 2 3/4 x 1 1/3. Write your answer in simplest form
Answers
so , bro to multripy fractions , you have to convert the mixed fraction into unlike fractions . so lets get started.
2 3/4 * 1 1/3
= 12 / 4 * 4/3
now multiply normally
= 48 / 12
divide this by 4/4 to get simplest for
= 12 / 3 divided by 3/3
= 4/1
Step-by-step explanation:
You invest a lump sum of $1,500 into a bank account that offers 7.75%
simple interest.
1) How much interest is earned each year? $
2) How much money will be in the account after 20 years? $
Answers
1. intrest earned per year $116.25
2. total after 20 years $3,825
116x20= $2325
$1500+ 2325=3825
The scale for this drawing is 3 in. = 8 ft. On the drawing, the length of the kitchen measures 7 in. What is the length of the actual Kitchen? Round your
answer to the nearest foot.
Answers
Answer:
19 feet
Step-by-step explanation:
First we must make the scale make sense, that is, it is in the same unit, therefore, we will pass 3 inches to feet, we know 1 foot is 12 inches, therefore:
3 inches * 1 foot / 12 inches = 0.25 feet
Which means that the real equivalence is 0.25: 8, now they are 7 inches, therefore:
7 inches * 1 foot / 12 inches = 0.583333
Now, we calculate the number of actual feet using the scale.
0.583333 * 8 / 0.25 = 18.66 feet
that is to say that the length of the current Kitchen is 19 feet if we round