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.
given g(x)=-×-4, slove for x when g(x)=10
Identify the terms, coefficients, and constants in the expression.
5m + 9
Answer:
Coefficients: 5
Constants: 9
Terms: 5m, 9
Step-by-step explanation:
Answer:
Terms: 5m, 9
Coefficients: 5
Constants: 9
Step-by-step explanation:
What is the 23th term of the sequence
{20, 16, 12.8, ... }
Step-by-step explanation:
[tex]an = a1 + (n - 1)d \\ d = a2 - a1 \\ a1 = 20 \\ a2 = 16 \\ d = - 4 \\ an = 20 + (n - 1) \times - 4 \\ an = 20 - 4n + 4 \\ an = 24 - 4n \\ a23 = 24 - 4 \times 23 \\ a23 = - 68[/tex]
What is the value of f(-2) when f(x) = 2x2−3x+28
Answer:
f(2) = 30
Step-by-step explanation:
f(x) = 2x² − 3x + 28
f(2) = 2(2)² - 3(2) + 28
f(2) = 2(4) - 6 + 28
f(2) = 8 - 6 + 28
f(2) = 30
A triangle has one angle that measures 70 degrees, one angle that measures 42 degrees, and one angle that measures 68 degrees. What kind of triangle is it?
Answer:
Scalene Acute Triangle
Step-by-step explanation:
The triangle above is an "acute triangle" because the measurement of each angle is less than 90°. However, there are three types of acute triangle and these are: Equilateral Acute Triangle, Isosceles Acute Triangle and Scalene Acute Triangle.
When all the angles have the same measurement of less than 90°, then it is an Equilateral Acute Triangle. If only two angles have the same measurement, it is an Isosceles Acute Triangle. If none of the angles are the same but all are less than 90°, which also means that the sides are also unequal, then it is an Scalene Acute Triangle.
The triangle above has different angle measurements of less than 90°. Therefore, it is an Scalene Acute Triangle.
Luisa works in her grandfather’s jewelry shop. She deposited her earnings in a savings account her savings account balances for five of the last six weeks are shown in the function table below
Answer:
$950
Step-by-step explanation:
The difference between each y function is $110, so if you continue the pattern, the 5th term will be $950.
Hope this helps :)
-2 x -6 x -4 =
Please help
Answer: -8x-4
Step-by-step explanation:
The equation is supposed to be simplified.
-2x-6x=8x
8x-4
1. Mr. Jones is correcting math test. Here are the scores for the
first fourteen tests he corrected 62, 65,93, 51, 55, 12,79,
85, 55, 72, 78, 83, 91, and 76. Which score does not seem
to fit the data? Explain how the outlier score affects the
mean and the median of the data.
Answer:
12
Step-by-step explanation:
12 doesn't fit the data because it is so much farther from the general average of the others.
12 affects the median because with it, the median is 74. but without 12, the median is 76.
12 affects the mean because with it, the mean is 68.36. but without 12, the mean is 72.69.
If you dunno please don’t anwser, I wanna sleep tonight qwq I couldn’t sleep all night yesterday
⠀⠀ ⠀ ⠀⠀ [tex]\huge{\tt{\red{❥}\green{A}\purple{N}\pink{S}\blue{W}\orange{E}\red{R}}}[/tex][tex]\longmapsto- 1 = 7 - 6[/tex]
A gym employee is paid monthly. After working for three months, he had earned $4,500. To determine how much money he will make over a six-month period, he created the table below. If he continues to earn at the same rate, how much will he have earned after working 5 months?
-2х + 12y = -3
x – бу = -3
Answer:
24y = 4x +3
Step-by-step explanation:
by this expression you can find the answer
The post office charges forty- six cents for the first ounce shipped, and thirty-three for each additional ounce. How much does it cost to ship a package which weighs 22 ounces
Answer:
300
Step-by-step explanation:
2 6
PLEASE ANSWER ASAP. WILL GIVE BRAINLIEST
Answer:
I cant see that, its upside down.
Step-by-step explanation:
Drag each equation to show if it could be a correct first step to solving the
equation
3(x+8)= 42.
Put in Yes, No, or Not Enough Information category.
Answer:
The first step to solving the equation is:
[tex]3x+24 = 42[/tex]
Hence, 3x + 24 = 42 is the correct option.
Step-by-step explanation:
Given the equation
[tex]3(x+8)= 42[/tex]
First of all, we need to apply the distributive law on the left side of the equation to expand the equation.
[tex]\quad \:a\left(b+c\right)=ab+ac[/tex]
So the equation would be expaneded using the distributive law on the left side of the equation
[tex]3(x+8) = 42[/tex]
[tex]3x+24 = 42[/tex] ∵ a(b+c) = ab + ac
Therefore, the first step to solving the equation is:
[tex]3x+24 = 42[/tex]
Hence, 3x + 24 = 42 is the correct option.
Answer: Just switch the two I got wrong, and you'll get them all right!<3
Step-by-step explanation:
What is 1/4 divided by 2
A mine worker is in a tunnel 25 feet below the ground. He descends another 13 feet. What is his final position? i already know that part of the answer is -25 -
but is it -25 - 13 or -25 - -13
Answer: -25 - 13
This simplifies to -38
So the worker's final position is 38 feet below the ground.
A diagram is shown below.
==========================================================
Explanation:
Draw a vertical number line. Plot 0 on it to indicate the ground level, or surface level. Then plot -25 on it, which is below 0. This is 25 feet below the ground.
To move 13 further feet downward, we will subtract 13 from -25. Subtracting a positive means we move downward.
For example, start at the 30th of a building. This is marked as +30 or just 30 on the vertical number line. Subtract off 13 to go down 13 floors and we have 30-13 = 17. So after going down 13 floors, we're at the 17th floor now.
Going back to the problem at hand, we start at -25 and subtract off 13 to get the final answer -25 - 13
The answer is not -25 - -13 and it is not -25 - (-13). This is because the two negatives cancel to be a positive. So -25 - (-13) becomes -25+13. Here we're starting at -25 but then going up 13 feet. Instead we want to go down 13 feet.
------------------------------------
After we determine the expression is -25 - 13 we will effectively add the positive versions of those numbers like so
25+13 = 38
But the final answer is negative because we're starting underground and moving further underground.
We can write it like this
-25 - 13 = -(25+13) = -(38) = -38
Therefore, if the worker starts off 25 feet underground, and moves 13 feet downward, then the worker ends up 38 feet underground. Again, use the vertical number line to help see this.
Check out the diagram below.
4k + 2 - k + 7 just answer it
Answer:
3k + 9
Step-by-step explanation:
What is the price of a $105 pair of shoes after 20% discount
Answer:
$84
Step-by-step explanation:
105 - 21 = 84
Answer:
$84
Step-by-step explanation:
Need help on this!! And is urgent!!!!
Tom bought 7 new baseball trading cards to add to his collection the next day his dog ate half of his collection. There are now only 38 cards left how many cards did Tom start with someone help me please!
Answer: 83 cards
Step-by-step explanation:
38 x 2 + 7 = 83
Write down the smallest integer value of z which satisfies the inequality: 2z + 2 >(smaller or equal to) 7?
Answer:
z> 5 /2
Step-by-step explanation:
please help due asap jdbhdbdbd
Answer:
b
Step-by-step explanation:
Answer: b
Step-by-step explanation:
180°-116°=64°
Can someone please help me !!!
Answer:
weak positive
Step-by-step explanation:
PLS HELP ASAP I DONT HAVE TIME FOR THIS, IT ALSO DETECTS IF ITS RIGHT IR WRONG
Answer:
It's 130
Step-by-step explanation:
Can you help my sister
Answer:
40
Step-by-step explanation:
The teacher ordered 5 pizzas with 8 slices each which is 5*8=40
MATH HELP PLZZ!! MARKING BRAINLIEST!!!
Answer:
1 1/2 y
Step-by-step explanation:
Answer:
0
Step-by-step explanation:
recall that graphically, a solution to two equations when expressed in a graph, is simply the coordinate of the point of intersection.
in our case, it clear that the blue and red lines intersect at (-2,0)
if we compare this to your question, it is clear that [?] = 0
2+2= 4 because there is too two's and there for it =4
Answer:
Yes, that is correct. Congrats 7 year old.
Step-by-step explanation:
2 plus 2 equals 4
:)
thanks for points
Find the missing length indicated
I WILL GIVE BRAINLIEST TO CORRECT ANSWER
Answer:
a 9 cause they both expand by one
PLEEASSEEEE Answer ASAP. Due in 5 Minutes. 25 points!!!!!!!!!
Answer:
Here we will use the relationships:
[tex]a^n*a^m = a^{n + m}[/tex]
[tex](a^n)^m = a^{n*m}[/tex]
[tex]\frac{a^n}{a^m} = a^{n - m}[/tex]
And a number:
[tex]a^n[/tex]
is between 0 and 1 if a is positive and larger than 1, and n is negative.
if a is positive and 0 < a < 1, then we need to have n positive such that:
0 < a^n < 1
A) [tex]5^3*5^{-4} = 5^{3 + (-4)} = 5^{-1}[/tex]
This is between zero and 1,
B) [tex]\frac{3^5}{3^{-6}} = 3^{5 - (-6)} = 3^{11}[/tex]
This is greater than 1, because the exponent is positive.
C) [tex](\frac{1}{4})^3*( \frac{1}{4})^2 = (\frac{1}{4})^{2 + 3} = (\frac{1}{4})^5[/tex]
Because a is smaller than 1, and the exponent is positive, then the expression is between 0 and 1.
D) [tex]\frac{(-7)^5}{(-7)^7} = (-7)^{5 - 7} = -7^{-2}[/tex]
The exponent is negative (and pair) then the expression is between 0 and 1.
Remember that when the exponent is pair, we always have that:
(-N)^m = (N)^m
So (-7)^-2 = 7^-2
What is the volume of the figure? Enter the answer in the box.
Answer:
Volume of figure = Volume of big cuboid+ The volume of small cuboid
= 22(5)(8) + 12(5)(8) = 1360[tex]cm^{3}[/tex]