Answers
Answer:
C
Step-by-step explanation:
-18x + 21 > -15 /// x = 2
20x – 13 >27 /// x = 2
The solution of inequality -18x + 21 > -15 OR 20x – 13 > 27 is x ∈ (- ∞, ∞), so option E is correct.
What is inequality?An inequality is a relation that compares two numbers or other mathematical expressions in an unequal way. It is most frequently used to compare the sizes of two numbers on the number line.
Given:
-18x + 21 > -15 or 20x – 13 >27
Solve the first inequality as shown below,
-18x + 21 > -15
-18x + 21 - 21 > -15 - 21 (Subtract 21 from both sides)
-18x > -36
-18x / -18 > -36 / -18 (Divide by -18 into both sides, the inequality sign changes as the value will become positive)
x < 2
Similarly, solve the second inequality,
20x – 13 > 27
20x > 40
x > 2
Thus, the solution will be x < 2 ∪ x > 2 or x ∈ (- ∞, ∞)
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Related Questions
which is the correct curve for y=3/x
What is b) please help I will give 5 points or even all of them. PLEASE PLEASE PLEAS HELP!!!!!
Answers
Answer:
A
Step-by-step explanation:
If we evaluate 3/x at x=1, we get 3/1 = 3.
The only one that showed that is graph A, and we can further check by evaluating other points, such as when x = 1/2, y = 6, and that's shown on graph A.
If this helped, consider giving brainliest.
Graph A, correctly represents the function y = x/3.
What is a graph?The set of ordered pairings (x, y) where f(x) = y makes up the graph of a function.
These pairs are Cartesian coordinates of points in two-dimensional space and so constitute a subset of this plane in the general case when f(x) are real values.
From the table of y = 3/x,
The value of (x, y) are (0.5, 6), (1, 3), (2, 1.5), (3, 1) and (4, 0.75).
Now, Observe graphs A, B, and C.
Graph A, when x = 0.5, y = 6, when x = 1 y = 3 so graph A matches with our table.
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ANSWERR HERE :) :0
ples
Answers
Answer:
Reflections, translations, and rotations
Answer:
Rotation, Transitions and Reflections because they don't change the size of the shape.
Help me solve this problem please
Answers
Answer:
-2
Step-by-step explanation:
Answer:
-2
Step-by-step explanation:
I dont have an explanation, sorry
Need answer ASAP!!!
Will make brainliest!!
which number best represents the slope of the graphed line?
Answers
Answer:( -10,10), (-,+)
Step-by-step explanation:
Awnser:
-2
Step by Step:
To find a slope, you need to find 2 points. You can't have a line with only 1 point.
The equation for a slope is: y2-y1/x2-x1.
It doesn't matter which order you put them in.
I used (-4,1) and (-6,2).
So: 2-1/-6-(-4)
1/-6+4
1/-2
-2
please help, the brainiest will go to the one with a good answer.
Reduce the following fraction: -36x^4y^4z^5/-12x^6y^3z
A. -3x^2yz^4
B. 3yz^4/1x^2
C. -9yz^5/-3x^2
D. 36yz^5/12x^2
Answers
whats 851,708 to the nearest hundred-thousand
Answers
Answer:
900,000
Step-by-step explanation:
because when you round number from 1-4 you put it down example: 1223
round to nearest thousand it is 1000 but when 5-9 is higher example: 1566 it is 2000
Answer:
900,000
Step-by-step explanation:
Bc The Ten Thousandths place is over 4
Each day, a local dog shelter spends an average of $2.40 on food per dog. The manager estimates the shelter's daily expenses, assuming there is at least one dog in the shelter, using the function E(x)= 30+2.40x . Which statements regarding the function are correct? *
Answers
I know... It's hard to study for quiz, test, and more right? In the end there is a * meaning that it is a question on google forms. I'll help you out though. DO NOT do this next time okay? :)
Step-by-step explanation:
Sierra plays a hockey video game. She earns 5 stars for
every goal she scores and loses star every time she
misses the goal. She scores 4 goals and misses
Answers
Answer:
the answer is 16
Step-by-step explanation:
4. What is the slope of a line that is parallel to the line described by 3x + 2y = 8?
a.
m = 3
b.
m= 3/2
c.
m= -3/2
d.
m= 2
Answers
B. M=3/2
Times are tough for Peter the Penguin and his "Hug a Penguin" business has been on the decline. Last year Peter the Penguin made $570 dollars from selling hugs. If he experienced a 20% decrease in sales how much did he make this year?
Answers
Answer:
the new sales after decrease in sales percentage this year is $456 dollars
Step-by-step explanation:
The computation of the sales made this year is shown below:
Given that
last year sales would be $570 dollars
And in this year there is 20% decrease in sales
so, the new sales after 20% decrease would be
= Last year sales × (1 - decreased percentage)
= $570 × (1 - 0.20)
= $570 × 0.80
= $456 dollars
hence, the new sales after decrease in sales percentage this year is $456 dollars
how do you find the power of the power
Answers
Answer:
When raising a power to a power in an exponential expression, you find the new power by multiplying the two powers together. For example, in the following expression, x to the power of 3 is being raised to the power of 6, and so you would multiply 3 and 6 to find the new power.
Step-by-step explanation:
What is 3 1/2 - 1 1/4
Subtract the fractions
Ty!
Answers
Answer:
The answer is 2 1/4. <3
help plz , i don't know how to find it
Answers
Answer:
y = 2x + 4
Step-by-step explanation:
y = mx+b
m represents the slope, and b is the y-intercept
The slope is 2 as it's going up 2 unit squares each time, and the b is 4 because that's where the y-axis gets intercepted.
so the answer is y = 2x + 4
Answer:
Hii have a another app thatcan helpyouu can download mathscanner hope ithelps
What is a possible solution set to x + 7 ≤ -9 ?
Answers
Answer:
Step-by-step explanation:
x + 7 ≤ -9 subtract 7 from both sides
x≤-16 this is your answer
If you're plotting it will be (-∞,-16]
Answer:
Step-by-step explanation:
For this equation, all it is asking is to replace the unknown value with a number that completes the equation. However, the number must make the equation valid. Here is a few examples that could be a valid solution to this problem:
1. -55 + 7 < -9
(you don't need to solve this equation to tell that it's less than negative nine.)
2. 22 + (-98) + 7 < -9
(this is more complicated, but you can still tell that the sum is less than negative nine.)
So, basicly all that you have to do is replace the missing value with a number that gives the eqquation a sum less than negative nine. Hope this helped!!! :)
What is the difference between the sum of the measures of the interior angles of a regular hexagon and the sum of the measures of the exterior angles of a regular pentagon
Answers
Answer:
180 degrees
Step-by-step explanation:
1. What is the value of x in this equation? 5x – 2(2x - 1) = 6 *
A.3
B.4
C.7
D.8
Answers
Answer:
Answer B. 4
Step-by-step explanation:
Equations
Solve the equation:
5x - 2( 2x - 1 ) = 6
Operate the parentheses:
5x - 4x + 2 = 6
Collect like terms:
x + 2 = 6
Subtract 2:
x = 6 - 2
x = 4
The value of x is 4
Answer B. 4
Felix can grow 6 plants with every seed packet. Write an equation that shows the relationship between the number of seed packets x and the total number of plants y. Write your answer as an equation with y first, followed by an equals sign.
Answers
Answer:
I believe it’s:
Y= 6x
Step-by-step explanation:
8 What value of x makes the equation 5(7x-3) - x=-4x – (-9- 2x)
true?
Answers
At a football game, 69 out of 92 students were wearing the color red to support the home team. What percent of the students were wearing red?
A.
69%
B.
88%
C.
65%
D.
75%
Answers
Answer c
Step-by-step explanation:
Answer:
D. 75%
Step-by-step explanation:
Divide 69 by 92 and you will get 0.75, move the decimal to the right two times. and there is your answer.
5. Two-fifths of a number is -26. Find the number.
Answers
Answer:
x = -65
Step-by-step explanation:
To start off, we can create our equation. We know that "of" is just another word for multiply. We will then end up with [tex]\frac{2}{5}[/tex] * x = -26. To solve this equation, we will find [tex]\frac{2}{5}[/tex] of -26. To make things less confusing, lets take away the negative for now. 26 x 5 = 130 and 130 ÷ 2 is 65. We then add our negative back on and x = -65.
(6th grade math)
Luis has 32 oz of water in his bottle. After drinking part of the water he has 16.07 oz. how much water did he drink?
Answers
Answer:
He drank 15.93 ounces.
Answer:
15.93 oz
Step-by-step explanation:
your welcome
Please help !!! I don't understand
Answers
Answer:
P=160+6x
Q=x+40
H=4x-5
P+Q+H=180...P=61.82
Triangle has side lengths 2, 3, and 4.
Triangle has side lengths 4, 5, and 6.
Is Triangle similar to Triangle?
Answers
Answer:
I think no
Step-by-step explanation:
I would say no because they would all have to be the same. 2/4= 1/2 so all the side lengths would have to divide into one half, and they don't
Which equation is not true?
Answers
Answer:
the answer is B
x + 16 = 9z
Help please
Answers
Answer:x=9z + 16
z= x/9 + 16/9
Step-by-step explanation: dont know if i solve for x or z so i did both subtract 16 from both sides for x
Isolate the variable by dividing each side by factors that don't contain the variable. for z let me know if u need help
Answer:
Hallooooooo
Step-by-step explanation:
What shape is generated when AABC is rotated around the vertical line
through B and C?
Answers
The solution is, The shape that is generated is a Cone, when AABC is rotated around the vertical line through B and C.
What is a cone?A cone is a solid which tapers from a circular base to a point. A cone is a three-dimensional geometric shape that tapers smoothly from a flat base to a point called the apex or vertex. A cone is formed by a set of line segments, half-lines, or lines connecting a common point, the apex, to all of the points on a base that is in a plane that does not contain the apex.
here, we have,
given that,
triangle ABC is rotated around the vertical line through B and C.
now, we have to find shape that is generated .
we know that,
A triangle, when rotated about one of it's side will generate a solid in a form of a Cone.
again, we have,
The cone could be a hollow one or a solid filled one, depending on the properties of the triangle being rotated.
Hence, The solution is, The shape that is generated is a Cone, when triangle ABC is rotated around the vertical line through B and C.
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The figures below are similar. Find the length of the missing side.
90
10
7
Х
36
4
14
126
X=
Answers
Answer:
63
Step-by-step explanation:
multiply the side by 9
Solve for a: 3a – 5(a – 2) = 34
Answers
3a-5a+10=34 (i developed)
-8a+10=34 (i subtracted 3a and 5a)
-8a=34-10 (brought 10 to the other side so it becomes negative)
-8a=24
a=24/-8 (multiplication become division)
a=-3
Answer:
a=12
Step-by-step explanation:
Last year, Summerfield Steel sold 6.5×104 pounds of steel to private businesses and 2.5×105 pounds of steel to government agencies. This year, they expect to sell 3 times that amount. How much steel would that be?
Answers
Answer:
9.45 × 10⁵ pounds of steel
Step-by-step explanation:
Last year, Summerfield Steel sold 6.5×10⁴ pounds of steel to private businesses and 2.5×10⁵ pounds of steel to government agencies.
Total amount of steel sold last year = (6.5 × 10⁴ + 2.5 × 10⁵) pounds = 315000 pounds = 3.15 × 10⁵ pounds
This year, they expect to sell 3 times that amount.
This year = 3 × 3.15 × 10⁵ pounds
= 9.45 × 10⁵ pounds of steel
Help me please i don’t wanna fail
Answers
Answer:
B
Step-by-step explanation: