If f(x)= -2x+3 , find f(-1)?
Before we solve the equation let's take a look at it.
f(x) = -2x + 3
See how x appears in both f(x) and as the variable in the second half of the equation?
f(x) means "The function of x." You might also see g(x), h(x), and while those are the most common it can really be any letter, and any variable inside the parentheses.
So when we see f(-1), that means "The function of -1" or "The function of x when it is equal to -1."
Catching on? We need to replace x with -1 to solve for f(-1).
So here we go:
f(x) = -2x + 3
f(-1) = -2(-1) + 3
f(-1) = 2 + 3
f(-1) = 5
Voilà! We have solved for f(-1). Hope this helped.
3/4 + (1/3 divided by 1/6) - (-1/2) =
Answer: 3.25
Step-by-step explanation:
i need help with this
Answer:
3
Step-by-step explanation:
If a item goes from 1.50 to 2.20 what's the percent increase
What is 1 1/2 divided by 2
Answer:
3/4
Step-by-step explanation:
1 1/2 can be expressed as an improper fraction 3/2
hence
1 1/2 ÷ 2
= 3/2 ÷ 2
= 3/2 x 1/2
= 3/4
-20t>-80 what is t and how do you graph it on a nuberline
Answer:
Step-by-step explanation:
Divide both sides by -20. If you divide by a negative, you have to switch the inequality sign. So now you have this for t:
t < 4
Draw a circle around 4 on a number line, but do not shade it in. Then everything below 4 is the right answer for the value of t.
Kai has 32 tickets. He wants to put the same number of tickets into 4 boxes.
Which number sentence could be used to find the number of tickets Kai should
put in each box?
Answer:
32 tickets divided by 4 boxes.
Step-by-step explanation:
He wants to divide the 32 tickets between the 4 boxes. So it would be 32 divided by 4. Hope this helps and have a great day!
EEEEEEEEEEEEEEEE!!!✨
Answer:
it should be <...........
Answer:
its < some fractions can be bigger than other fractions but whole numbers like 1. 2. 3. and .4 are always bigger t but in this than fractions but in this case the fraction and the right is the biggest so b
Step-by-step explanation:
A baseball card that originally cost $24 has been decreasing in value
at an annual rate of 6% for the last 5 years. What is the present value?
Answer:
I believe it is four dollars
Y’all help, I ain’t sure bout the answer
I think it’s 5.79 tho
Answer:
5.79
Step-by-step explanation:
I think I'm not very sure tho
It's 7.723, not 5.79.
If you get your bodmas correctly, you should get 7.723.
Solution:
Do "((-4.6) - 1.9) first, which is -6.5 basically.
After that it is (-2.78) x (-2.8), which is 7.784.
After that do (2.2 - 1.8) ÷ ((-4.6) - 1.9), which is -0.061
After that 7.784 + -0.061, which makes it 7.723.
The current in one part of a series circuit is 3 – 2j amps. The current in
another part of the circuit is 2 + 4j amps. Find the total amps in the circuit. .
Answer:
5 + 2j Amps
Step-by-step explanation:
current in part one = 3 -2j A
Current in second part = 2 + 4j
Total amps in the circuit = 3 - 2j + 2 + 4j
Collect the like terms
Total amps in the circuit = 3+2-2j+4j
Total amps in the circuit = 5 + 2j
Hence the total amps in the circuit is 5 + 2j Amps
The total amps in the circuit described is; 5 +2j
Since current flows in the same direction in a series circuit.
We can evaluate the total current that flows in the circuit as follows;
Total current = 1st part current + 2nd part currentTotal current = 3 – 2j + 2 + 4j Total amps = 5 +2j.Read more;
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A store selling art supplies finds that they can sell x sketch pads each week at a price of p dollars each, according to the formula x = 1000 − 400 p. What price should they charge (in interval notation and rounded to the nearest cent) if they want to sell
a . At least 625 pads each week? b . More than 300 pads each week?
c . Less than 200 pads each week? d . At most 475 pads each week?
Answer:
c and b and a
Step-by-step explanation:
The store should charge a price between ($0, $0.94] to sell at least 625 pads each week. The store should charge a price between ($0, $1.75) to sell more than 300 pads each week. The store should charge a price between ($2.00, $2.50) to sell less than 200 pads each week. The store should charge a price between [$1.31, $2.50) to sell at most 475 pads each week.
a)
In order to solve part a of the problem, we need to set our equation as an inequality. Part a asks us to find the price the store should charge to sell at least 625 pads each week. The word at least gives us a clue on what symbol to use. In this case we should use the [tex]\leq[/tex] symbol, like this:
[tex]625\leq 1000-400p[/tex]
and now we can solve the inequality, we can start by switching places between the 625 and the 400p so we get:
[tex]400p\leq 1000-625[/tex]
[tex]400p\leq 375[/tex]
and we divide both sides into 400, so we get:
[tex]p\leq \frac{375}{400}[/tex]
[tex]p\leq $0.94[/tex]
So this can be rewritten in interval notation like this:
($0, $0.94] The price they should charge can be located between those two values.
b)
In order to solve part b of the problem, we need to set our equation as an inequality. Part b asks us to find the price the store should charge to sell at more than 300 pads each week. The word more than gives us a clue on what symbol to use. In this case we should use the < symbol, like this:
[tex]300< 1000-400p[/tex]
and now we can solve the equation, we can start by switching places between the 300 and the 400p so we get:
[tex]400p< 1000-300[/tex]
[tex]400p< 700[/tex]
and we divide both sides into 400, so we get:
[tex]p< \frac{700}{400}[/tex]
[tex]p< $1.75[/tex]
So this can be rewritten in interval notation like this:
($0, $1.75) The price they should charge can be located between those two values.
c)
In order to solve part c of the problem, we need to set our equation as an inequality. Part c asks us to find the price the store should charge to sell less than 200 pads each week. The word less than gives us a clue on what symbol to use. In this case we should use the > symbol, like this:
[tex]200> 1000-400p[/tex]
and now we can solve the inequality, we can start by switching places between the 200 and the 400p so we get:
[tex]400p> 1000-200[/tex]
[tex]400p> 800[/tex]
and we divide both sides into 400, so we get:
[tex]p> \frac{800}{400}[/tex]
[tex]p> $2.00[/tex]
at this point we need to know what the maximum price the store can charge is. We can do so by setting the equation equal to zero and solve for p, so we get:
0<1000-400p
so we can now move the 400p to the other side of the equation, so we get:
400p<1000
and divide both sides into 400 so we get:
[tex]p<\frac{1000}{400}[/tex]
which simplifies to:
p<$2.50
if the store charges more than $2.50 they will not sell any item at all.
So this can be rewritten in interval notation like this:
($2.00, $2.50) The price they should charge can be located between those two values to sell less than 200 pads each week.
d)
In order to solve part d of the problem, we need to set our equation as an inequality. Part d asks us to find the price the store should charge to sell at most 475 pads each week. The word at most gives us a clue on what symbol to use. In this case we should use the [tex]\geq[/tex] symbol, like this:
[tex]475\geq 1000-400p[/tex]
and now we can solve the inequality, we can start by switching places between the 475 and the 400p so we get:
[tex]400p\geq 1000-475[/tex]
[tex]400p\geq 525[/tex]
and we divide both sides into 400, so we get:
[tex]p\geq \frac{525}{400}[/tex]
[tex]p\geq $1.31[/tex]
So this can be rewritten in interval notation like this:
[$1.31, $2.50) The price they should charge can be located between those two values to sell 475 pads at most each week.
You can check the following link for further information.
https://brainly.com/question/13728818?referrer=searchResults
A histogram titled Number of payphones has date on the x-axis and payphones on the y-axis. From 1981 to 1985 there were 160 payphones, 1986 to 1990: 190, 1991 to 1995: 200, 1996 to 2000: 210, 2001 to 2005: 55, 2006 to 2010: 45.
The histogram shows the number of payphones that were active by year in a large city. How many payphones would you expect to be active between 1976 and 1980?
A.) over 200
B.) between 150 and 200
C.) between 50 and 100
D.) fewer than 50
Answer:
b
Step-by-step explanation:
this is the most likely answer because from '81 to '00 there were between 150-200, so it is also likely in this range
The area of the rug is 21,600 square inches.
True
False
Answer:
true
Step-by-step explanation:
what is 64 thousandths in decimal form
The answer is .00064, because if you were to make in Thousand form it would look like this ➡️ 64,000. See the 3 Zeros? that is what makes it a thousand. now wht woul happen if we switched that around? well it would look like this ➡️ .00064. as you can see, there are 3 zeros, like in the last example. so your answer is ''.00064''
Describe how each graph is obtained from the graph of y= f(x).
(a) y = f(x – 2)
Can somebody help telling what does it mean? what does it want us to do?
Answer:
see explanation
Step-by-step explanation:
Give the graph of y = f(x) then y = f(x + a) represents a horizontal translation of y = f(x)
• If x > 0 then a shift to the left of a units
• If x < 0 then a shift to the right of a units
Thus
y = f(x - 2) is the graph of y = f(x) translated 2 units right
*crying inside*. TwT
[tex]\huge\purple {\mid {\fbox {\tt {Solution}}\mid}}[/tex]
[tex]\longmapsto - 5 = - 10 + 5[/tex]
Answer:
The answer is 5
Step-by-step explanation:
-10 + 5 equals -5.
Think of 5 positive things and 10 negative things.
O O O O O
P P P P P P P P P P
5 of the positive things will cancel out 5 of the negative things, leaving behind 5 negative things.
#teamtrees #WAP (Water And Plant)
3x2 · 2x5 whats the answer please twenty five points to show work
Answer:
60
Step-by-step explanation:
3x2=6
2x5=10
6x10=60
????
[tex]4 \frac{1}{9} + 1 \frac{1}{2} [/tex]
[tex]4 \frac{1}{2} \div \frac{3}{5} [/tex]
need help please
Step-by-step explanation:
[tex] \tt{ 1. \: \: 4 \frac{1}{9} + 1 \frac{1}{2}}[/tex]
⇢ [tex] \tt{ \frac{37}{9} + \frac{3}{2} }[/tex]
⇢ [tex] \tt{ \frac{37 \times 2 + 3 \times 9}{18} }[/tex]
⇢ [tex] \tt{ \frac{74 + 27}{18} }[/tex]
⇢ [tex] \tt{ \frac{101}{18}} [/tex]
⇢ [tex] \boxed{ \tt{5 \frac{11}{18}} }[/tex]
---------------------------------------------------------
[tex] \tt{ \: 2. \: \: 4 \frac{1}{2} \div \frac{3}{5}}[/tex]
⇢ [tex] \tt{ \frac{9}{2} \times \frac{5}{3}} [/tex]
⇢ [tex] \tt{ \frac{9 \times 5}{2 \times 3}} [/tex]
⇢ [tex] \tt{ \frac{45}{6}} [/tex]
⇢ [tex] \boxed{ \tt{7 \frac{3}{6}} }[/tex]
Hope I helped ! ♡
Have a wonderful day / night ! ツ
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Which TWO answers below show this proportion?
What is the number of cycles of y=1+10sin(θ−2π/3) between 0 and 2π?
Answer:
D. 2/3
Step-by-step explanation:
12z−6+15z=27z−5 how many solutions
Answer:
no solutions
Step-by-step explanation:
if you simplify the left side you will get 27z - 6 and the other side is 27z - 5
no value for 'z' will ever get these two expressions to equal each other because 6≠5
What is the y-intercept of the line?
110
A
2
B
3
000
-7
-6
D
Me.Lee ordered some pizzas to be delivered. The bill for the pizza was m dollars. Mr. Lee tipped the pizza delivery driver 15% of the bill. Write an expression for the total amount of money Mr. Lee paid
The expression would be: m + 0.15m and to know how much she paid I believe it would be 26.09 (rounded)
The floor of a rectangular shed is 12 ft by 14 ft.
What is the area of the floor in square feet?
Answer:
Step-by-step explanation:
S=a*b=12*14=168feet²
What number is missing in this sequence? 1, 2, 4, 7, 11, ___, 22
Answer:
16
Step-by-step explanation:
Write down the size of angle ABC.
Give a reason for your answer.
Answer:
Angle ABC = 90°
Step-by-step explanation:
Angle AOC= 180°
so Angle ABC = 0.5 x AOC
or another way to explain is
Rule 1: Angles in semi circle are always 90°
What kind of triangle is this?
Answer:
acute
Step-by-step explanation:
all the angles are below 90 degrees
Answer:
ACUTE IS THE KIND OF TRIANGLE I SEEStep-by-step explanation:
I HOPE IT HELPS :)
what do you call a crushed angle ?
Answer:
A Rectangle
Step-by-step explanation:
a wrecked angle
A crushed angle is commonly referred to as a "rectangle" or a "wrecked angle".
When an angle is crushed or collapsed, its sides are no longer straight or evenly spaced, and its vertex may be shifted or deformed.
This deformation can occur in various contexts, such as in physical objects or in mathematical diagrams. The angle's original shape has been significantly changed due to external influences.
Thus, a crushed angle is commonly referred to as a "rectangle" or a "wrecked angle".
This is a play on words, as a rectangle is a shape with four right angles, and when an angle is crushed or wrecked, it can resemble a rectangle.
Learn more about the rectangles here:
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#SPJ6
guys I'm stuck plz help!!!!
Answer:
I believe 70
Step-by-step explanation:
