Answer: False
Step-by-step explanation:
If t<-3, and t>2, that means that all values less than 3, and all values greater than 2 are true.
In the inequality -3<t<2, only values between -3 and 2 are true, so this means they are not equivalent.
Step-by-step explanation:
t>-3 or t<2
THE STATEMENT ABOVE CONTRADICTS THE GIVEN STATEMENT THEREFORE IT IS FALSE
3 (1 + 5)² + 147 = 0
whats the answer?
Answer: 255
Step-by-step explanation:
(4x + 10) + (3x + 8)
Answer:
7x+18
Step-by-step explanation:
add both 4x and 3x to get 7x and add 10 and 8 to get 18. therefore 7x+18
The final expression of (4x + 10) + (3x + 8) is 7x + 18.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
(4x + 10) + (3x + 8)
Combine like terms.
4x + 3x + 10 + 8
7x + 18
Thus,
The final expression is 7x + 18.
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what are the opposites of these numbers
4.25
-
5 1/4
1/2
2 1/3
-3.85
-6.1 help pls
you order two tacos and a salad. the salad costs $2.50. you pay 6% sales tax and leave a $3 tip. you pay a total of $13.60. how much does one taco cost?
The cost of one taco is $3.75.
We are given cost of salad, the sales tax and tip along with total expenditure. We already know, that sales tax is calculated on the cost of items. Hence, forming the equation accordingly. Let us assumed the cost of one taco be $x. So, the cost of two tacos will be $2x.
The equation will be -
2x + 2.50 + (2x + 2.50)×(6÷100) + 3 = 13.60
2x + 2.50 + (2x + 2.50)×0.06 + 3 = 13.60
Now, solving this equation to find the value of x and hence the cost of one taco.
2x + 2.50 + 0.12x + 0.15 + 3 = 13.60
Performing addition on Left Hand Side
2.12x + 5.65 = 13.60
Shifting 0.18 to Right Hand Side and performing subtraction
2.12x = 13.60 - 5.65
2.12x = 7.95
x = 7.95÷2.12
Performing division
x = 3.75
Thus, the cost of one taco is $3.75.
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AB was dilated by scale factor of 2 to create segment A prime B prime. Which point is the center of dilation? O N M L
I think its M am i right? plz help
Answer:
It is not L.
Step-by-step explanation:
I just took the test and put L. It was wrong.
Please help me with this
Line f passes through the points
(10, -1) and (-8, 6).
What is the slope of line f?
Answer:
-7/2 or -3.5
Explanation:
The slope is rise over run.
The rise is how much it went up and the run is how much it went right
The line went up 7 units while going -2 units to the right (meaning it went 2 units to the left)
This makes our slope 7/-2 which is the same as -7/2 or -3.5
what algebraic property is this:
if 12+4x then 4x+12
The algebraic property of "if 12+4x then 4x+12" is: commutative property of addition.
What is the Commutative Property of Addition?The Commutative Property of Addition is an algebraic property that states that the change of arrangement or order of an expression does not change the sum of the expression.
For example, based on the commutative property of addition, a + b = b + a.
In the same vein, if we have 12 + 4x, then 4x + 12, it means that whichever way we choose to order the operation, the sum remains the same.
Therefore, the algebraic property of "if 12+4x then 4x+12" is: commutative property of addition.
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pls answer this ( both parts)
Answer:
Yes, It is
Step-by-step explanation:
0.005
Divide the numerator by the denominator, to find the answer
I REALLY NEED THIS RIGHT NOW!!
For 0
Answer:
Where is the question?
Step-by-step explanation:
7x + 2 = 28 + 5x, solve for x
Answer:13
Step-by-step explanation:
7x + 2 = 28 + 5x
subtract 5x on both sides
7x - 5x + 2 = 28
2x = 28 -2
2x = 26
x = 13
if correct mark braliest! :)
hope this helps
can someone help me pls?
Go step by step to reduce the radical: √288
what I have so far:
√16 • √18
12√2
12√2 • √9
One environmental group did a study of recycling habits in a California community. It found that 75% of the aluminum cans sold in the area were recycled. (Use the normal approximation. Round your answers to four decimal places.)
(a) If 387 cans are sold today, what is the probability that 300 or more will be recycled?
(b) Of the 387 cans sold, what is the probability that between 260 and 300 will be recycled?
Answer:
a
[tex]P( \^ p > 0.775 ) = 0.12798[/tex]
b
[tex]P( 0.6718 < p < 0.775 ) =0.87183[/tex]
Step-by-step explanation:
From the question we are told that
The population proportion is [tex]p = 0.75[/tex]
Considering question a
The sample size is [tex]n = 387[/tex]
Generally the standard deviation of this sampling distribution is
[tex]\sigma = \sqrt{ \frac{p(1 - p)}{ n } }[/tex]
=> [tex]\sigma = \sqrt{ \frac{0.75(1 - 0.75)}{ 387 } }[/tex]
=> [tex]\sigma = 0.022[/tex]
The sample proportion of cans that are recycled is
[tex]\^ p = \frac{ 300}{387 }[/tex]
=> [tex]\^ p = 0.775[/tex]
Generally the probability that 300 or more will be recycled is mathematically represented as
[tex]P( \^ p > 0.775 ) = P( \frac{\^ p - p }{ \sigma } > \frac{0.775 - 0.75 }{ 0.022} )[/tex]
[tex]\frac{\^ p - p }{\sigma } = Z (The \ standardized \ value\ of \ \^ p )[/tex]
[tex]P( \^ p > 0.775 ) = P( Z > 1.136 )[/tex]
From the z table the area under the normal curve to the left corresponding to 1.591 is
[tex]P( Z > 1.136) = 0.12798[/tex]
=> [tex]P( \^ p > 0.775 ) = 0.12798[/tex]
Considering question b
Generally the lower limit of sample proportion of cans that are recycled is
[tex]\^ p_1 = \frac{ 260 }{387 }[/tex]
=> [tex]\^ p_1 = 0.6718[/tex]
Generally the upper limit of sample proportion of cans that are recycled is
[tex]\^ p_2 = \frac{ 300}{387 }[/tex]
=> [tex]\^ p_2 = 0.775[/tex]
Generally probability that between 260 and 300 will be recycled is mathematically represented as
[tex]P( 0.6718 < p < 0.775 ) = P( \frac{0.6718 - 0.75 }{ 0.022}< \frac{\^ p - p }{ \sigma } <\frac{0.775 - 0.75 }{ 0.022} )[/tex]
=> [tex]P( 0.6718 < p < 0.775 ) = P( -3.55 < Z < 1.136 )[/tex]
=> [tex]P( 0.6718 < p < 0.775 ) = P(Z < 1.136 ) - P( Z < -3.55 )[/tex]
From the z table the area under the normal curve to the left corresponding to 1.136 and -3.55 is
[tex]P( Z < -3.55 ) = 0.00019262[/tex]
and
[tex]P(Z < 1.136 ) = 0.87202[/tex]
So
[tex]P( 0.6718 < p < 0.775 ) = 0.87202- 0.00019262[/tex]
=> [tex]P( 0.6718 < p < 0.775 ) =0.87183[/tex]
math work
pls helppp
Solve: 2|x -1| - 3 ≥ 15.
x ≥ -10 or x ≤ -8
x ≥ 10 or x ≤ 8
x ≥ 10 or x ≤ -8
x ≥ -10 and x ≤ 8
Answer:
x ≥ 10 or x ≤ -8
Step-by-step explanation:
2|x - 1| - 3 ≥ 15
Add 3 to both sides;
2|x - 1| ≥ 18
Divide both sides by 2
|x - 1| ≥ 9 or |x - 1| ≤ -9
x - 1 ≥ 9 or x - 1 ≤ -9
Add 1 to both sides;
x ≥ 10 or x ≤ -8
(picture included) will mark brainliest
Answer:
1. A
2. C
3. B
Step-by-step explanation:
1. we can create an equation y = 48x + 96
if we plug in 1 we get 144
2. we can create an equation y = 10x to represent how much battery you will lose every hour
if we plug in 5 to x, we get y = 50
so we get the plot point: (5, 50)
3. process of elimination
Hayley is buying herbs. She wants to buy ounce of basil. The scale she is using to weigh the basil displays the weight as a decimal. How will she know when the display on the scale is correct to the tenths place? Explain your reasoning.
Complete question :
Hayley is buying herbs. She wants to buy 5/6 ounce of basil. The scale she is using to weigh the basil displays the weight as a decimal. How will she know when the display on the scale is correct to the tenths place? Explain your reasoning.
Answer:
0.8
Step-by-step explanation:
To obtain the fractional expression of weight in decimal form:
5/ 6 ounce of bassil is converted into decimal :
5 / 6 = 0.8333
Hence, for a fraction of 5 /6, we obtain;
5/6 = 0.8333
To the nearest tenth :
0.8
Solve for x
5(x + 9) = -45
X =
O
Answer:
x =-18
Step-by-step explanation:
5(x + 9) = -45
Divide each side by 5
5/5(x + 9) = -45/5
x+9 = -9
Subtract 9 from each side
x+9-9 = -9 -9
x =-18
Answer:
The correct answer is x = -1.
Step-by-step explanation:
Step 1: 5(x + 9) = -45 <----- This is the original problem.
Step 2: 5(9x) = -45 <----- Add the variable.
Step 3: [tex]\frac{5(9x)}{5} = \frac{-45}{5}[/tex] <----- Divide both sides by 5.
Step 4: 9x = -9 <----- Simplify
Step 5: 9x/9 = -9/9 <----- Divide both sides by 9.
x = -1
Hope this helps! :D
Chris and Evan are selling bags of popcorn to raise money for a club at school. Chris started with 10 bags and he sells 4 bags each day. Evan began with 8 bags and sells 2 bags each day. How many days will it take before they both have the same number of bags remaining? A. 2 days B. 4 days C. 1 day D. 6 days
Answer:
C. 1 day
Step-by-step explanation:
Chris:
10 - 4d
Evan:
8 - 2d
How many days will it take before they both have the same number of bags remaining?
Equate both expressions and solve
10 - 4d = 8 - 2d
Collect like terms
10 - 8 = -2d + 4d
2 = 2d
Divide both sides by 2
d = 2/2
= 1
d = 1 day
It will take 1 day before they both have the same number of bags remaining
Find the slope of the line.
I WILL MARK BRAINYLIST JUST HELP MEEE
Answer:
-1/3
Step-by-step explanation:
join the zoom call and i can explain that way when another question comes no need to waste points: 73216153508 thats the code to join
small word problem! 30 POINTS
If f(x) =x-1 and g(x)=5x-2, then (f+g)(x)=
Answer:
5x²-7x+2
step by step explanation:
(f•g)(x) = f(x)•g(x)
(x-1)•(5x-2)
x×5x-2x-5x-1×(-2)
5x²-2x-5x+2
=5x²-7x+2
4. What's the fraction 18/24 reduced to its lowest terms?
A. 24/18
B. 18/24
C. 3/4
D. 9/12
Answer:
C
Step-by-step explanation:
The GCF of 18 and 24 is 6. So divide both 18 and 24 individually by six and you get 3 and 4.
Answer:
3/4
Step-by-step explanation:
divide both sides by 6
The circumference of the great wheel was twelve thousand and forty-one thousand inches. The cricumference of the lesser wheel was only one thousand twenty-one and two hundred-thousand inches. How much lager was the great wheel?
Answer:
The larger wheel is 10979.04098 more than the smaller wheel.
Step-by-step explanation:
Given that,
The circumference of the great wheel was twelve thousand and forty-one thousandth inches.
C = 12000.041 inches
The circumference of the lesser wheel was only one thousand twenty-one and two hundred-thousand inches.
C' = 1021.00002 inches
We need to find how much larger was the great wheel. To find it, take the difference of C and C'.
C-C' = 12000.041 inches - 1021.00002 inches
= 10979.04098 inches
Hence, the larger wheel is 10979.04098 more than the smaller wheel.
The senior class plans a school trip to Washington DC. Students should bring money for meals and
souvenirs. They are told to bring at least $60 but no more than $135. Write a compound inequality that
represents the amounts of money a student can bring.
Answer:
The required inequality is:
[tex]\mathbf{x >60\: and\: x<135}[/tex]
Step-by-step explanation:
Minimum Money students should bring = $60
Maximum Money students should bring= $135
We need to write compound inequality that represents the amounts of money a student can bring.
Compound inequalities are combination of two inequalities combined with "and" , and "or"
And is used, when both inequalities should be true.
Or is used when one of the inequality should be true.
In our case we would use and because we need both inequalities to be true.
The required inequality is:
[tex]\mathbf{x >60\: and\: x<135}[/tex]
Zeke read z books over the summer. Michelle read twice as many books over the summer as Zeke. Tay read 3 more books over the summer than Zeke. Which expression represents the total number of books read over the summer by Zeke, Michelle and Tay?
Answer: 4z + 3
Step-by-step explanation:
Number of books read by Zeke = z
Michelle read twice as many book as Zeke. This will be: = 2 × z = 2z
Tay read 3 more books than Zeke. This will be: = z + 3
The expression that represents the total number of books read over the summer by Zeke, Michelle and Tay would be the addition of the books read by each person. This will be:
= z + 2z + z + 3
= 4z + 3
Which table represents y as a function of x
Answer:
B
Step-by-step explanation:
Only one in which x is not more than one number matching y in function.
The table 4 represent the function.
What is Function?In mathematics, a function is represented as a rule that produces a distinct result for each input x. In mathematics, a function is indicated by a mapping or transformation. Typically, these functions are identified by letters like f, g, and h. The collection of all the values that the function may input while it is defined is known as the domain. The entire set of values that the function's output can produce is referred to as the range. The set of values that could be a function's outputs is known as the co-domain.
Given:
The function should have distinct input with corresponding output.
If there are 2 same input vales then it not said to be a function.
So, according the definition the table 4 represent the function because the table 1, 2 and 3 have repeated input value,
Hence, the table 4 represent the function.
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What is the slope equation? Drag and drop answers
Answer:
y = 2x + 9
Step-by-step explanation:
The y-intercept: 9
Slope: 2x
PLEASE HELP ME. IM DESPERATE. MY BRAIN STOPPED WORKING
Answer:
All of them except for the 3rd one
Step-by-step explanation:
2) 15 - 3x = 5(x + 4) - 8x
15 - 3x = 5x + 20 - 8x
15 - 3x ≠ -3x + 20
4) 2(x - 7) = 2x - 10
2x - 14 ≠ 2x - 10
1) 24x - 22 = -4(1 - 6x)
24x - 22 ≠ -4 + 24x
3) 12 - 2x = 6(2x + 2)
12 - 2x = 12x + 12
0 = 14x
0 = x, only one that has a solution
Can you help me with question 4 pls