Answer:
x = 4
x = 8
Step-by-step explanation:
I will solve this using the substitution method.
y = x² - 15x + 26
y = -3x - 6
Equal the answers to each other.
x² - 15x + 26 = -3x - 6
x² - 12x + 32 = 0
(x - 4) (x - 8)
x = 4
x = 8
Answer:
(4,−18) and (8,−30)
Step-by-step explanation:
I just got it correct
The difference of the highest and lowest observation is called.
Answer:
Range
Step-by-step explanation:
The difference of the highest and lowest observation is called Range.
Pentagon A'B'C'D' E' is the image of pentagon ABCDE under a dilation with a scale factor of
ID
소
C
What is the length of segment CD?
Answer:
4
Step-by-step explanation:
I took a quiz
please helpp i need this doneee :((
Answer:
[tex]w = \frac{5}{8}, v = \frac{21}{2}[/tex]
Step-by-step explanation:
With given information, we have [tex]\frac{TR}{TQ} = \frac{TS}{TP}[/tex], so [tex]\frac{5}{13} = \frac{3w}{3w+3}[/tex], which gives us [tex]w=\frac{5}{8}[/tex]. Meanwhile, we have [tex]\frac{TR}{TQ}=\frac{RS}{QP}[/tex], so [tex]\frac{5}{13}=\frac{10}{2v+5}[/tex], which gives us [tex]v = \frac{21}{2}[/tex].
At a summer camp, the campers are divided into groups. Each group of 16 campers requires 2 cabins.
How many cabins are needed for 112 campers?
Answer:
14 cabins
Step-by-step explanation:
16/2=8 campers per cabin
112/8=14
Hope I helped!
Solve the system by substitution. y= 2x - 4 11-2y=5
Answer:
Point Form (in graph) : ( 7 /2 , 3 )
Equation Form: x = 7/ 2 , y = 3
Step-by-step explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Answer:
( 7 /2 , 3 )
Step-by-step explanation:
two integers that are 11 apart
Answer:
1 ad 12
Step-by-step explanation:
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Answer:
C = 60°
Step-by-step explanation:
d=180(n−1)n, “d” represents interior angle and n is the number of sides in the polygon.
So, the value of d or interior angle is 120 degrees. Therefore, the exterior angle of a regular hexagon will be = 180 – 120 = 60 degrees.
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What is the sum?
2 + (-4) =
Answer:
-2 is your answer i hope this helps
Hey there Ms or Mr could you please help me out with this problem?
just a heads up this an assignment not a test it's about quadrilaterals/parallelograms.
Answer:
you forgot they/them pronouns are important!
Step-by-step explanation:
10
B
с
63°
9
A
D
What is the perimeter of ABCD?
perimeter =
What fraction, in hundredths, is equivalent to 5/10 ?
150 people are asked how many siblings they have?
Answer:
yes
Step-by-step explanation:
The complete Relative frequency table is attached at the end.
To calculate the relative frequency for each category, divide the frequency of that category by the total frequency:
Relative frequency = Frequency of the category / Total frequency
For example, the relative frequency for "1" is calculated as:
Relative frequency = 31 / 150 = 0.2067
To calculate the cumulative frequency for each category, add the frequencies from the current category and all previous categories:
= Frequency of the current category + Cumulative frequency of the previous category
For example, the cumulative frequency for "1" is calculated as:
Cumulative frequency = 31 + 29 = 60
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Use a number line to find the quotient 3/4 divided by 1/8
Answer:
6
Step-by-step explanation:
The required quotient of 3/4 divided by 1/8 on the number line is 6.
What is a number line?A number line is defined as the number marked on the line calibrated into an equal number of units. For example -1, 0, 1, and so on.
As mentioned in the question, it is to be determined quotient when a fraction is 3/4 divided by the number 1/8.
When the 3/4 is simply divided by 1/8 we get,
= 3/4 / [1/8]
= 6
On a number line, the given expression shows the addition of the given fraction for the 8 times by itself as,
= 3/4 = 0.75
Now,
on a number line,
= 0.75 + 0.75 + 0.75 + 0.75 + 0.75 + 0.75 + 0.75 + 0.75
= 6
Thus, on the number line, the quotient 3/4 divided by 1/8 is 6.
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2
Sarah works for a maximum of 40 hours per week. She needs to make at least $400 in order to cover her expenses. Her office job pays
$12 per hour and her babysitting job pays $10 per hour.
Which system of inequalities can be used to determine the number of hours she should spend working in office (x) and the number of
hours she should spend babysitting (/) to cover her expenses?
Answer:
x + y ≤ 40
10x + 12 y ≥ 400
x ≥ 0
y ≥ 0
Step-by-step explanation:
System of Inequalities
In order to model the situation stated in the problem, we'll call the following variables:
x = number of hours Sarah spends in the office
y = number of hours Sarah spends babysitting
She works for a maximum of 40 hours per week. This condition leads us to the inequality:
x + y ≤ 40
Her office job pays $12 per hour and her babysitting job pays $10 per hour.
She needs to make at least $400 per week in order to cover her expenses, thus:
10x + 12 y ≥ 400
Two obvious conditions could be added to the set of inequalities:
x ≥ 0
y ≥ 0
The system of inequalities is:
x + y ≤ 40
10x + 12 y ≥ 400
x ≥ 0
y ≥ 0
POSSIBL
Elaine's and Aaron's daily expenses for a recent business trip are shown.
Elaine: $45, $12, $32, $62, $29
Aaron: $26, $91, $36, $57, $61
Which shows the correct mean of the data sets?
Elaine: $50
O
Aaron: $40
Elaine: $40
Aaron: $50
Elaine: $36
O
Aaron: $54 20
Elaine: $18
Aaron: $27.10
the sum of two number is 5. the difference of the numbers is negative 3. find the two numbers
Answer: The two numbers are 1 and 4
1+4 = 5
1-4 = -3
===========================================================
Explanation:
You set the equations up properly. Nice work so far.
Let's add the equations straight down.
The x terms add to x+x = 2xThe y terms add to y+(-y) = y-y = 0y = 0, showing that the y terms cancel each other out and go away.The numbers on the right side add to 5+(-3) = 2After those three sets of addition operations, we are left with the equation 2x = 2. This solves to x = 1 after dividing both sides by 1.
-------------
Use this x value to find y
We can pick either equation. If we pick the first equation, then,
x+y = 5
1+y = 5
y = 5-1
y = 4
Or we could use the other equation instead
x-y = -3
1-y = -3
-y = -3-1
-y = -4
y = 4
Either way, we get the same y value when x = 1. This helps confirm we have the correct x value. A more thorough check would involve plugging (x,y) = (1,4) into both original equations and simplifying. You should get the same value on each side.
The value of x is 1 while y is 4 for the given set of constraints.
What is the equation?There are many different ways to define an equation. The definition of an equation in algebra is a mathematical statement that demonstrates the equality of 2 mathematical expressions.
More than one variable may be present inside a linear equation. An equation is said to be linear if the maximum power of the variable is consistently unity.
Let's say the first number is x while the second is y
Now,
x + y = 5
x - y = -3
By adding
2x = 2
x = 1
So y = 5 - 1 = 4
Hence "The value of x is 1 while y is 4 for the given set of constraints".
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(1 - 3i)(2 - 2i)
Need answer and steps
(1 - 3i)(2 - 2i)
2 - 2i - 6i + 6i²
6i² - 8i + 2
Step-by-step explanation:
=2-2i-6i+6i^2
=2 -8i + 6i^2
(^2 is 6i square)
Can someone help me find the scale factor
Manni is going to Turkey. The exchange rate is £1 = 4.5203 Lira. He changes £246 to Lira. How many lira will he get to the nearest lira? Please help me as soon as possible! Thank you
Step-by-step explanation:
hi
The answer is
1111.9938
Which expression means “8 multipled by a number c, then increased by 2”?
Answer:
8c+2
Step-by-step explanation:
have a good day
Answer:
The last option: 8c + 2 i think
Step-by-step explanation:
1. Suppose on a sample of Montanans it is found the mean salary is equal to 30,000. When we use a statistic like this to simply describe a sample, this is an example of:
a) an inferential statistic
b) a descriptive statistic
c) a sample median
d) random sampling
e) b and c
2. If we collect observations on 100 people, and measure their IQ, the 100 observations is:
a) a sample
b) a population
c) a sample with likely no variability
d) a or b are possibilities, depending on the scope of the investigation
e) a variable
Suppose the trace of a matrix is equal to 10. If this matrix is also an identity matrix, how many rows must the matrix have?
10
equal to the number of columns of the matrix
0
a and b
impossible to say without further information
4. If it is universally known in general that all cats have four legs, then the conclusion that your particular cat has four legs is an example of:
inductive inference
deductive inference
statistical inference
d) a mathematical function
e) none of the above
5. Suppose you have values on variable equal to , and wish to compute a measure of variation from the mean. Without knowing what the exact values of the variable are, which of the following measures will necessarily generate a positive number (which is of course different from zero) regardless of the values for ?
a) the sum of absolute deviations from the mean
b) the sum of deviations from the mean
c) the sum of squared deviations from the mean
d) the standard deviation
e) a and c
f) none of the above
6. One common interpretation of the derivative in mathematics is:
a quadratic function
an instantaneous rate of change
the limit of a linear function
none of the above
7. Consider the numbers 1, 2, 3, 4 assigned to values of a variable. The variable being measured is most likely:
a) quantitative
b) qualitative
c) one for which computing the standard deviation would likely be appropriate
d) one for which computing the median would definitely be inappropriate
e) a and c
8. Integration in calculus is generally used for:
computing the rate of change of one variable with respect to another
computing areas under curves
computing areas in rectangles only
none of the above
9. If the mean of some data set is equal to 10, then this necessarily implies:
a) 1/2 of the scores fall above and below the mean of 10
b) the score of 10 must exist in the actual data set of recorded values
c) the variance of the data is probably negative
d) the standard deviation cannot be greater than 10
e) the distribution is normal
f) none of the above
10. If you compute the arithmetic mean, the sum of deviations of scores from that mean are always equal to:
a) 1
b) 0
c) 0 or a positive number
d) a squared number
e) none of the above
Answer:
1. Suppose on a sample of Montanans it is found the mean salary is equal to 30,000. When we use a statistic like this to simply describe a sample, this is an example of:
a) an inferential statistic
b) a descriptive statistic
c) a sample median
d) random sampling
e) b and c
2. If we collect observations on 100 people, and measure their IQ, the 100 observations is:
a) a sample
b) a population
c) a sample with likely no variability
d) a or b are possibilities, depending on the scope of the investigation
e) a variable
Suppose the trace of a matrix is equal to 10. If this matrix is also an identity matrix, how many rows must the matrix have?
10
equal to the number of columns of the matrix
0
a and b
impossible to say without further information
4. If it is universally known in general that all cats have four legs, then the conclusion that your particular cat has four legs is an example of:
inductive inference
deductive inference
statistical inference
d) a mathematical function
e) none of the above
5. Suppose you have values on variable equal to , and wish to compute a measure of variation from the mean. Without knowing what the exact values of the variable are, which of the following measures will necessarily generate a positive number (which is of course different from zero) regardless of the values for ?
a) the sum of absolute deviations from the mean
b) the sum of deviations from the mean
c) the sum of squared deviations from the mean
d) the standard deviation
e) a and c
f) none of the above
6. One common interpretation of the derivative in mathematics is:
a quadratic function
an instantaneous rate of change
the limit of a linear function
none of the above
7. Consider the numbers 1, 2, 3, 4 assigned to values of a variable. The variable being measured is most likely:
a) quantitative
b) qualitative
c) one for which computing the standard deviation would likely be appropriate
d) one for which computing the median would definitely be inappropriate
e) a and c
8. Integration in calculus is generally used for:
computing the rate of change of one variable with respect to another
computing areas under curves
computing areas in rectangles only
none of the above
9. If the mean of some data set is equal to 10, then this necessarily implies:
a) 1/2 of the scores fall above and below the mean of 10
b) the score of 10 must exist in the actual data set of recorded values
c) the variance of the data is probably negative
d) the standard deviation cannot be greater than 10
e) the distribution is normal
f) none of the above
10. If you compute the arithmetic mean, the sum of deviations of scores from that mean are always equal to:
a) 1
b) 0
c) 0 or a positive number
d) a squared number
e) none of the above
3/4 divided by 6/7
Please help me
Answer:
Hey! So the answer is 7/8 or 0.875
Step-by-step explanation:
So in order to divide fractions you can change them into decimals which would get you 0.875.
Hoped this helped Im Eve btw. Hope you have a great day and consider marking this brainliest Thank you so much if you do! ✨
I need help with this.
The sum of a number times 9 and 22 is at most – 28.
If f(x)=-3x+3, then f^-1 (x)=____
Please help
Answer:
y = (-x/3) +1 or y = (-1/3 * x) + 1
Step-by-step explanation:
For the inverse of a function, you invert the y and x positions.
In your case:
y = -3x+3
The inverted function is:
x = -3y+3
When you solve this for y, you get:
-3y = x-3
y = -x/3 +1
the thing is in the picture
if f(x) = -5^x -4 and g(x) = -3x - 2 find (f-g)(x).
A. (f-g)(x) = -5^x + 3x -2
B. (f-g)(x) =5^x -3x+2
C. (f-g)(x) = -2x-2
D. (f-g)(x) = -5^x-3x-6
9514 1404 393
Answer:
A. (f-g)(x) = -5^x +3x -2
Step-by-step explanation:
The only terms that can be combined are the constants.
(f -g)(x) = f(x) -g(x)
(f -g)(x) = (-5^x -4) -(-3x -2) = -5^x -4 +3x +2
(f -g)(x) = -5x^4 +3x -2 . . . . . matches A
What comes in the sequence? seed, plant, blossom,______A)apple B)branches C)fruit D)leaves
Answer:
branches
Step-by-step explanation:
so b is the correct choice. I hope that this had helped you out
Julie’s mom paid $2.70 for 5 pounds of bananas at Supermart. Mario’s mom paid $2.60
for 4 pounds of Bananas at Market One. Write a division equation for each banana
purchase, and then decide which store had the better banana price.
Answer:
(Supermart) Equation 1 = $2.70÷5 lb = $0.54 per lb
(Market One) Equation 2 = $2.60÷4 lb = $0.65 per lb
Step-by-step explanation:
Since the unit price of bananas per lb in Supermart is less than the unit price of bananas per lb in Market One, Supermart has the better price.
Banana's rate at Supermart are better as compared to that of Market one.
What is division?Division is a process of splitting a number into equal parts.
Given is that -
Julie’s mom paid $2.70 for 5 pounds of bananas at Supermart. Mario’s mom paid $2.60 for 4 pounds of Bananas at Market One.Division equation for Julie's purchase -
5 pounds for $2.7
1 pound for $(2.7/5) = $0.54
Division equation for Mario's purchase -
4 pounds for $2.60
1 pound for $(2.6/4) = $0.65
The banana's rate at Supermart are better as compared to that of Market one.
Therefore, banana's rate at Supermart are better as compared to that of Market one.
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What type of data is the following "The rock sample consisted of 25 grams of quartz
Answer:
quantitative
Step-by-step explanation:
is it a qualitative and quantitative question?