Answer:
f(x) = 2x + 7
f(15) = 2(15) + 7 = 30 + 7 = 37
6. a + 6 < -2; a = -8
I
0. yes
P. no
Answer:
yes
Step-by-step explanation:
Order of operations
18 ÷ 9 - 4 x 15
Answer: I'm almost 100% its -58
what is the mean of the frequency distribution?
Answer:
[tex]mean = \frac{ \sum \: xf}{n} \\ \frac{(27 \times 2) + (28 \times 4) + (29 \times 3) + (31 \times 5) + (33 \times 6)}{(2 + 4 + 3 + 5 + 6)} [/tex]
translate this into an equation, use n for the number: "the different of 3 times a number and 6 is twice the number."
Answer:
6
Step-by-step explanation:
6 * 3 = 18
18 - 6 = 12
12 is twice of 6, the number
1st Question
3x + 8y = -4
2x - 4y = 16
2nd Question
6x - y = 16
x = 4y - 5
3rd Question
x + y = 19
3x - 2y = -3
9514 1404 393
Answer:
(x, y) = (4, -2)(x, y) = (3, 2)(x, y) = (7, 12)Step-by-step explanation:
When you have a lot of the same kind of problem to solve, it makes a certain amount of sense to let a spreadsheet do it. You can enter the formulas once, and then all you need to do is supply the different data for the different problems.
Here, we can put the equations into standard form, then use Cramer's Rule to solve them. For the two equations ...
ax +by = cdx +ey = gwe can define ...
D = (ae -db)
Then the values of x and y are ...
x = (ce -gb)/D
y = (ag -dc)/D
The attached spreadsheet implements these equations to find the values of x and y.
__
The second equation of the 2nd Question is not given in standard form. To put it into standard form, we need to subtract 4y from both sides:
x -4y = -5
_____
Additional comment
Many graphing calculators have matrix functions that will solve sets of linear equations, too. For those, you can use the function that puts the coefficient matrix into Reduced Row-Echelon Form. Often that function is named RREF( ), as it is on my TI-84 and HP-48 calculators. The input coefficient matrix will look like ...
[tex]\left[\begin{array}{ccc}a&b&c\\d&e&g\end{array}\right][/tex]
and the output matrix will look like ...
[tex]\left[\begin{array}{ccc}1&0&\text{x-value}\\0&1&\text{y-value}\end{array}\right][/tex]
Effectively, the equations are solved by "elimination." If the calculator shows [0 0 0] in the bottom row of output, it means the equations are dependent and there are infinite solutions. If it shows [0 0 1], the equations are inconsistent, and there are no solutions.
Here is a diagram of triangle DEF.
Find the measures of angles q, r, and s.
(PLEASE help ASAP I will give brainliest!)
Answer:
q= 100
r= 135
s= 125
Step-by-step explanation:
These are the angles
The measures of angles q, r, and s are q = 100°, r = 135°, and s = 125°.
What are Alternate Interior Angles?Alternate Interior Angles are defined as the pair of angles created on the inner side of the parallel lines and on the opposite sides of the transversal when two parallel lines are intersected by a transversal are referred to as alternate internal angles. These angles are always equal.
These are the angles
⇒ q = 180 - 80 = 100
⇒ r = 180 - 45= 135
⇒ s = 180 - (180 - 80 - 45) = 125
So the sum of the measures of angles q, r, and s
⇒ q + r + s = 100 + 135 + 125 = 360°
Thus, the measures of angles q, r, and s are q = 100°, r = 135°, and s = 125°.
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Robert types 152 words per minute. How long will it take Robert to type 2,508
words?
Answer:
16.5 minutes
Step-by-step explanation:
2508/152 = 16.5
Check: 152 x 16.5 = 2508
the mean sale per customer for 40 customers at a grocery store is $23.00, with a standard deviation of $6.00. Apply Chebyshev's Theorem to the data using k=2.
solve the inequality
Identify the domain and the range of the relation shown in the figure.
Answer:
Domain is the X values, Y is the range Values
Step-by-step explanation:
(0,0) both domain and range is 0
(4,-1) 4 is the domain, -1 is the range
(1,5) 1 is the domain, 5 is the range
(-2,-4) -2 is the domain, -4 is the range
(-5,-1) -5 is the domain, -1 is the range
(-5,3) -5 is the domain, 3 is the range
(sorry if this is not the thing you are looking for but this is what I know)
Answer:
Domain: [tex]4\leq x\leq -5[/tex]
Range: [tex]-1\leq y\leq 3[/tex]
Step-by-step explanation:
In a relation, WE CAN IDENTIFY THE DOMAIN AND RANGE by looking at the points.
https://brainly.com/question/11447256
Fill in the blank . If the graph of an exponential function is increasing from left to right it is called exponential
Answer:
growth
Step-by-step explanation:
Enter the number 10.333333333333 rounded to the nearest hundredth (two decimal places):
M is the midpoint of JK. Find the coordinates of K.
J (-8, 4), M (-1, 1)
What is the slope y, equals, x, plus, 5?
Answer:
slope = m = 1
Step-by-step explanation:
y = x + 5
slope intercept form is y = mx + b, where m is the slope.
in this case, the m = 1; therefore, the slope is 1
which expression is equivalent to the given polynomial expression? (9mn-19m^4n)-(8m^2+12m^4n+9mn)
A. -31m^4n+18mn-8m^2
B. -7m^4n+8m^2
C. -7m^4n+18mn-8m^2
D. -31m^4n-8m^2
9514 1404 393
Answer:
D. -31m^4n-8m^2
Step-by-step explanation:
Eliminate parentheses by distributing the minus sign. Then collect terms:
(9mn-19m^4n)-(8m^2+12m^4n+9mn) = 9mn -19m^4n -8m^2 -12m^4n -9mn
= m^4n(-19 -12) +mn(9 -9) +m^2(-8)
= -31m^4n -8m^2 . . . . . matches choice D
Consider the graph of rational function f
6
-6
-2
10
2
4
O
-2
Which equation represents function
A f(x)= 4/x-3
B f(x)= 4x+12/x^2 + x-6
C f(x)= 4/x+2
D f(x)= 4x-8/x^2 +x-6
Answer:
The answer should be D
Step-by-step explanation:
sorry if it's wrong, I just did this test the other day and I forgot if I got it right.
The rational function that is represented by the given graph is [tex]f(x) = \frac{4x - 8}{x^{2} +x-6}[/tex]
What is a polynomial function ?Rational function is any function that can be defined by a rational fraction, which is an algebraic fraction such that both the numerator and the denominator are polynomials.
We need to find out which rational function is represented by this graph.
Firstly, we see that graph does not exist at x = -3 and x = 2.
Thus, (x+3) and (x-2) cannot be equal to 0.
(x + 3)(x - 2) = x² + x - 6
Thus, the denominator of the function is x² + x - 6.
So, our solution can be B. or D.
We can also see that there is a circle over the graph at x = 2. This means that f(x) is undefined at x = 2. It is possible only if f(x) = ∞/∞ or 0/0 at x = 2.
On putting the value of x = 2 in both B. and D., we find that in D. f(x) = 0/0 at x = 2.
[tex]f(2) = \frac{4*2 - 8}{4 + 2 - 6} = \frac{0}{0}[/tex]
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Jim has a bank account balance of −$15.46. As soon as he realizes this, he deposits $25.50 in the account.
What is Jim's bank account balance after the deposit is made?
Enter your answer in the box.
$
Answer:
$10.04
Step-by-step explanation:
-15.46+25.50
equals
25.50-15.46
A cashier is paid a standard hourly rate and makes $43.75 for 5 hours of work. How much is the cashier paid for 8 hours of work?
Answer:
70 dollars
Step-by-step explanation:
divide 43.75 by 5. you get 8.75 an hr. multiply 8.75 by 8 and you get 70 dollars as your answer.
The table lists the average surface temperature of some planets.
Average Surface
Planet Temperature
(°C)
Mercury 167
Uranus
-197
Neptune -200
Earth
15
Mars
-65
Jupiter -110
Enter an inequality to compare the temperatures of Mercury and Mars.
Answer:
Mercury's temperature > Mars' temperature
Step-by-step explanation:
The average surface temperature on Mercury is 167 degrees C, and the average surface temperature on Mars is -65 degrees C. 167 is greater than -65, so Mercury > Mars.
Help plssssssssssssssss
Answer:
both
Step-by-step explanation:
The mean and the median give the same information, so it doesn't matter which one she chooses.
how many decimal points are in 131.6
Answer:
It just has 1 decimal point
Step-by-step explanation:
If it was a number like 14.454, then that would have 3 decimal points
Hope this helps!
(-5) + 6= ____
please help!
Answer:
1
Step-by-step explanation:
-5 +6=1 jsjenejsnsjwjjwwj
(-5) + 6 = "1'
Let me know if its wrong.
Given
mZLON = 77°
mZLOM = 9x + 44°
mZMON = 6x + 3°
Find mZMON:
Answer:
FVRF
Step-by-step explanation:
How much would you need to deposit in an account now in order to have $3000 in the account in 10 years? Assume the account earns 4% simple interest. Round your answer to the nearest cent.
50,000
hope it helps you
Mr.jones filled his swimming pool with water
then go and swimand enjoy your holiday
The data set below shows a city's high temperature for 11 days, in degrees Fahrenheit.
56, 60, 60, 60, 62, 64, 64, 66, 66, 90, 95
Which is the most reasonable measure of central tendency for the data set?
mean
mode
range
median
Answer:
I think its range I dont know
Step-by-step explanation:
The mean is the maximum often used as a degree of critical tendency because it makes use of all values inside the information set to give you an average. For statistics from skewed distributions, the median is higher than the implied because it isn't motivated through extremely big values.
The correct option is A.
Which is a better measure of center mean or median?The median is normally a better degree than the middle whilst there are intense values or outliers because it isn't always stricken by the right numerical values of the outliers. The suggestion is the maximum common measure of the middle. The phrases “mean” and “common” are regularly used interchangeably.
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Hello! I'm in the 7th grade and I'm having trouble with math this year... Will someone please help me with this? :)
(the question is down below)
Answer: 66
Step-by-step explanation: 30 x 2 = 60... 30 / 5 = 6... 60 + 6 = 66 :D
i'm in seventh too hehe
For a experimental to produce useful data, what must happen
Answer:
cr qe deobpaase r
Step-by-step explanation:
What is the name of decimal 31.903?
Answer:
thirty-one. nine hundred three tenths
Step-by-step explanation:
no sé ni hablar English pero espero te ayude
Whats the answer to this question? ( Branliest )
Answer:
3+jk+k^6
j=2 & k=6
substituting the values, we have
= 3+2(6)+6^3
= 3+12+216
= 231
Ans=231
Step-by-step explanation:
j=2 and k=6
Now
(6)³+2(6)+3216+12+3216+15231