Answer:
f(-3) = 1
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Function NotationStep-by-step explanation:
Step 1: Define
f(x) = 2x + 7
f(-3) is x = -3
Step 2: Evaluate
Substitute: f(-3) = 2(-3) + 7Multiply: f(-3) = -6 + 7Add: f(-3) = 1In the figure below, lines p and s are parallel.
Answer:
c
Step-by-step explanation:
i used a calculator (they never lie)
Answer:
22
Step-by-step explanation:
60+6x-12= 180
6x = 180 -48
x= 132/6= 22
Find the 69th term of the following arithmetic sequence.
18, 25, 32, 39,
Answer:
18+68(25-18)=18+68(7)
=18+476
=494
How much acetic acid is in a 15-liter container of acetic acid and water that is marked 40% acetic acid?
The solution is 40% acetic acid.
Multiply the amount of the solution by 40%:
15 liters x 0.40 = 6 liters
There is 6 liters of acetic acid
The radius of a circle can be found by dividing the circumference of the circle by 6.28. What is the radius of a circle that has a circumference of 17.27 feet?
0.36 ft
2.75 ft
10.99 ft
2.58 ft
Answer:
2.75 ft
Step-by-step explanation:
Answer:
2.75
Step-by-step explanation:
The diameter of the circle below measures 7 cm,
What is the approximate area of the circle?
A. 14 cm2
B. 22 cm2
C. 38 cm2
D. 154 cm2
Answer: D
Step-by-step explanation:
Remember the formula -
[tex]A = \pi[/tex] × [tex]r^{2}[/tex]
π = 3.14
[tex]r^{2}[/tex] = 7
7² = 49
3.14 x 49 = 153.94
A = π · r² = π · 72 ≈ 153.93804
153.93804 ⇒ 154 (rounded)
Your answer is D.
write the ratio as a fraction in simplest form.
56 days to 5 weeks
Answer: 8 weeks
Step-by-step explanation:
What is the slope of the line represented by the equation Y=4/5x-3?
y = 4x + 2
y= x2 + 6x + 5
Answer:
im sorry for doing this but i really need points
Step-by-step explanation:
Solve the inequality for x.
–3x + 6 –3
D) x > –7
In a scale drawing 1/2 inch represents 3 feet. If the same scale is used, how many inches will be needed to represent 24 feet?
2 inches
4 inches
8 inches
12 inches
t is -40°F on a cold night in the North Pole. When the sun is out the next day, it is -5°F. What is the difference in temperatures?
Answer:
because at 40 its still warm but really cold but in -5 its cold wherever you go even in the warmest blanket
Step-by-step explanation:
The graphs below have the same shapes what is the equation of the blue graph
what is the domain and range
Answer:
domain = x value
range = y value
Step-by-step explanation:
domain = x value
range = y value
You bought a house in 1963 for $56,000. Since then, you have increased the value 6% per year. What is the value of your house in 2017?
Answer:
244,160
Step-by-step explanation:
Mr. Smith marked up the price of his sofa by 15%. If the sofa originally cost $399, what is the new sale price?
Answer:
457.8
Step-by-step explanation:
Carys calculates The total amount E, in dollars, that she earns for working h hours using the equation E=10h.
How many dollars does carys earn per hour?
There are 4 red apples and 3 green apples. How many red and green apples are there?
Answer:
7
Step-by-step explanation:
Just add them together...
Lots a Loot Bank charges a monthly service fee and a fee per check, and the chart below shows your total monthly fees in relation to the number of checks issued per month.
Answer:
Monthly service fee is like the fixed cost which is basically the y-value where graph crosses the y-axis.
From graph we see that graph crosses at 1 on y-axis so monthly service fee according to sample graph = $1
Now the per check fee works like slope of the line.
To find the slope we need two points so find any two points on the graph of line. I'm using points (1,0) and (4,3)
now slope can be found using formula
Hence per check fee will be $0.5 as per attached sample graph.
You can use same technique for the original graph given with this question.
Step-by-step explanation:
Answer:
A monthly service fee of 0.50 and a per-check fee of 0.50
Step-by-step explanation:
2q-r=p, r=q-s, p=q+2r prove s=2r
Answer:
s=2r
Step-by-step explanation:
Solution:
Given;
2q-r=p
r=q-s
or,q=r+s
p=q+2r
To prove: s=2r
Now,
2q-r=p
or,2(r+s)-r=q+2r
or,2r+2s-r=r+s+2r
or,r+2s=3r+s
or,s=2r
PROVED
If you want any other solutions follow me
THANK YOU
By using the substitution method we can prove s = 2r.
Given,
2p - r = p
r = q - s
p = q + 2r
We need to prove s = 2r.
What is a substitution method?It is a method where we substitute the value of one variable in one equation for the same variable in the other equation.
Example:
x + 4 = y _____(1)
x = y - 4
x + 5 = 2y ______(2)
Putting x = y - 4 in (2)
y - 4 + 5 = 2y
-4 + 5 = 2y - y
1 = y
y = 1
Prove s = 2r.
We have,
2q - r = p ____(1)
r = q - s _____(2)
p = q + 2r ______(3)
From (1) and (2)
Substituting (2) in (1)
2q - (q - s) = p
2q - q + s = p
q + s = p _____(4)
Putting (4) in (3)
q + s = q + 2r
q - q + s = 2r
s = 2r
Hence proved.
Thus we can prove s = 2r.
Learn more about how to prove a given expression here:
https://brainly.com/question/17846064
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what is y=2x can someone pleas help me
Answer:
Slope: 2
Step-by-step explanation:
Answer:
x=y/2
Step-by-step explanation:
you divide 2 from both sides then you get y/2
What is the correct equation to solve for x? Help
Answer:
tan (46°) = 17/x
Step-by-step explanation:
tan (46°) = 17/x
Answer:
tan(46) = 17/x
Step-by-step explanation:
The tangent of an angle is opposite over adjacent, so the tangent of 46 is 17/x, not x/17. Also, sin(46) = opposite/hypotenuse and cos(46) = adjacent/hypotenuse, but we aren’t given the hypotenuse. Therefore, the answer has to be tan(46) = 17/x.
At the local bookstore, Jim bought 2 paperback books for $13.00. Maria bought 5 paperback books for $32.50. Tanya bought 7 paperback books for $45.50. Graph the situation.
Answer:
Hi
Step-by-step explanation:
One factor of x^2 + 5x - 24 is?
Answer:
(x-3)(x+8)
Step-by-step explanation:
Answer:
(x-3)(x+8) take your pick
Which of the following is equivalent to 17g2 – 2g2?
Answer:
whichever equation equals =15g2
Step-by-step explanation:
Answer:
(17 – 2)g ^2
Step-by-step explanation:
The last 40 boat rentals at a boat rental company were 22 sunfish, 10 kayaks, and 8 rowboats.
The diagram shown can be used to prove the Pythagorean theorem. Which statement is TRUE about the diagram?
es »
A)
The areas of the two rectangles are not equal.
B)
The diagonal of each rectangle is the hypotenuse of a triangle.
0
The area of the red square is represented by ab.
D)
The area of the blue square is represented by a² + b2
Answer:
Step-by-step explanation:
the answer is c
PLS HELPPP!!!!!
its due soon, and mainly its asking for verbal
When a regression line was used to model exponential data, the -value was
0.668. If the data are linearized using logarithms and then modeled again
with a regression line, the value will be greater than 0.668.
OA. True
OB. False
The statement about the correlation coefficient of the exponential and logarithmic model is true
How to determine the true value of the statement?The correlation coefficient, r² is given as:
r² = 0.668
An exponential model and a logarithm model are inverse functions.
This means that, their correlation coefficients are also inverse
Given that the correlation coefficient, r² of the exponential data is 0.668.
And the highest value of the correlation coefficient is 1.
This means that the correlation coefficient, r² of the logarithmic data would be less than 0.668
Hence, the given statement is true.
Read more about regression line at:
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Answer:
true
Step-by-step explanation:
Describe, with examples of your own, when you would use long division and synthetic division and how to check polynomial division.
I do not understand how you can do this without more information.
Answer:
Step-by-step explanation:
I think you are correct. The bottom of the drawing has to have a width or someway of finding it. Also the breakup of the height needs some sort of clue where that breakup occurs. I think you likely have to ask your instructor.