Answers
Answer:
A. -x² + 2x + 8
General Formulas and Concepts:
Algebra I
Combining like termsStep-by-step explanation:
Step 1: Define
f(x) = 2x + 1
g(x) = x² - 7
(f - g)(x) is f(x) - g(x)
Step 2: Solve
Substitute: (f - g)(x) = 2x + 1 - (x² - 7)Distribute -1: (f - g)(x) = 2x + 1 - x² + 7Combine like terms: (f - g)(x) = -x² + 2x + 8Related Questions
Did I do this right? If not please explain!
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Your y-intercept is equal to the constant of the equation (y-int = -2). Your movement/direction (or rise over run) is equal to the variable. Since your variable is x (which can also be written as 1x) means you move up one and over one (rise over run). This is because 1/1 is equal to 1.
Substitution
-3y+3=x
-5x-4y=-37
Answers
Answer:
4x+5y=87
Step-by-step explanation:
thanks for the points
Answer:
(9,-2)
Step-by-step explanation:
Again, plz help I’m desperate
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Make equation y= mx + b
3x + 4y = 24
4y = -3x + 24
y = -3/4x + 6
Now make slope perpendicular
Slope = 4/3
The answer would be B.
Answer:
4/3 (answer choice b)
Step-by-step explanation:
first, you convert the equation to slope intercept form as well as make sure y doesn't have a coefficient by dividing the whole equation by 4. (y=-3/4x+6) Next, you find the reciprocal of the slope which in this case is -4/3 ,and divide it by -1 giving you 4/3.
Write the equation of the line in point slope form.
(10 Points)
Answers
Answer:
y=-1/4(x-4)+3
Step-by-step explanation:
work is in the picture
Hello, I need a little help on this 1 question! Any help is appreciated!
Answers
Answer:
A. 24
Step-by-step explanation:
We know that the formula for find the area of right triangle is (1/2) × (b × h)
Using this formula, we can find the area of this right triangle given the side lengths
the base of this right triangle is 8
the height of this right triangle is 6
(1/2) × (8×6)
(1/2) × (48)
48/2
24
Write the equation of the line in standard form.
Answers
Answer:
1/4x+y=4
Step-by-step explanation:
work is in the picture
On Monday, the ABC Company stock was at $12.80 per share. On Tuesday it gained $3.42, and then lost $9.70 on Wednesday. What is the new price per share?
Answers
Answer:
Step-by-step explanation:
12.80+3.42= 16.22
16.22-9.70= 6.52 that's your answer
Which data set is the most clustered around its mean? 4, 10, 8, 6 11, 3, 10, 4 2, 9 ,13, 4 11, 2, 9, 6
Answers
Answer:
the correct answer is a
PLS MARK BRAINLIEST
Step-by-step explanation:
Answer:
A
Step-by-step explanation: i just redid the test on edge
Find the new price for the markup given. Round to the nearest cent if necessary.
$132.75 discounted 40%
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9x−2(4x−3)<5x+12−6x
please answer quick thanks :)
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Answer:
Isolate the variable by dividing each side by factors that don't contain the variable.
Inequality Form: x < 3
Interval Notation: (-∞, 3)
Simplify: (5x^3y^7)(7x^5y)
Answers
Answer:
35x^8 y^8
Step-by-step explanation:
Answer:
[tex]125y {}^{5}(7x {}^{5}y)[/tex]
Which equation describes the line perpendicular to the graphed line and has a y intercept at (0,6)
Answers
Answer:
y= -1/6z + 6
Step-by-step explanation:
to turn 6 into a perpendicular
30. ax + bx = c
solve for x
Answers
Answer:
x=c/a+b
Step-by-step explanation:
Factor out x
divide both sides by a+b
I WILL MARK BRAINIEST
please answer ASAP
Answers
Answer:
It looks like 45 degree for the one on the left and maybe 180 degrees on the right (i'm not sure tbh) but those are my guesses
The sum of 9/26 and -4/13
Answers
Answer:
Step-by-step explanation:
Ok, well the first thing you need to do is make -4/13 have the same numerator as 9/26. Thankfully, 26 is a multiple of 13, so that step is easy:
-4/13 -> -8/26
Then you can add them together with ease.
9/26 + -8/26 = 1/26
Adding a negative number to anything is the same thing as subtracting.
Mr. Lee is a hotdog and drink vendor at a baseball game. Hot dogs are 3.50 and drinks are 1.50. If Mr. Lee sold enough to make 450 dollars on Monday. He remembers that on Monday he sold three times as many drinks as he did hot dogs. How many hot dogs and how many drinks did Mr. Lee sell on Monday?
Answers
Answer:
33 hotdogs and 225 drinks on Monday
Step-by-step explanation:
We would use the ratio of 1:3 hotdogs to drinks
Split the ratio in 450 and we get 112.5:337.5
$112.5 would be the earnings of hotdogs
$337.5 would be the earnings of the drinks
Now we divide each individually by its cost
$112.5/3.5
= 32 1/7,
$337.5/1.5
= 225
We will round the hotdogs to 33 as the word problem says "sold enough to make."
The height in feet, h, of a base jumper Is jumping off a cliff is given by the equation
h = 3t^2 - 700t + 2000,
where t is the time is seconds. How long will it take the jumper to reach the ground?
Answers
Answer:
233 seconds
Step-by-step explanation:
When h = 0 the jumper ends his/her jump. Therefore let h = 0 so that we can solve for t; forming a quadratic equation
0 = 3t^2 - 700t + 200
I am going to solve using the quadratic formula, but there are other approaches--
[tex]t_{1,\:2}=\frac{-\left(-700\right)\pm \sqrt{\left(-700\right)^2-4\cdot \:3\cdot \:200}}{2\cdot \:3},\\\\\sqrt{\left(-700\right)^2-4\cdot \:3\cdot \:200} = 20\sqrt{1219},\\\\t_{1,\:2}=\frac{-\left(-700\right)\pm \:20\sqrt{1219}}{2\cdot \:3}[/tex]
[tex]\:t_2=\frac{-\left(-700\right)-20\sqrt{1219}}{2\cdot \:3}[/tex]
[tex]t=\frac{10\left(35+\sqrt{1219}\right)}{3},\:t=\frac{10\left(35-\sqrt{1219}\right)}{3}[/tex]
Now the solutions are around 233 and 0.3 seconds. Given these two solutions I would find the first one more predictable.
Max worked 6.23 hours on Monday, 7.45 hours on Tuesday, 8.3 hours on Wednesday, 8 hours on Thursday, and 5.21 hours on Friday. What is the total number of hours that Max worked?
Answers
Answer:
35.19
Step-by-step explanation:
6.23+7.45+8.3+8+5.21=35.19 hours
Will give brainliest.
Answers
Answer:
1. y = [tex]\frac{-A}{By}[/tex]x + [tex]\frac{C}{By}[/tex]
2. Divide the Opposite of A and B
3. Doesn't make sense the y-intercept is C/By sry I can't help that one
Step-by-step explanation:
1. Ax + By = C
By = -Ax + C
y = [tex]\frac{-A}{By}[/tex]x + [tex]\frac{C}{By}[/tex]
2. No explanation
(x+1)(x+5)≤0
Solve and write solution in interval notation
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Answer:
just multiply first x+1 to x+5 then add and subtract
What is the value 6^-8/6^-5?
Answers
Answer:
0.00462962962
Step-by-step explanation:
16. x^2 + 3x + 20 = 9
Use completing the square
Answers
Answer: Im not really sure of the answer but i think it 7
Step-by-step explanation:
What is the rule to change a percent to a decimal?
Answers
Answer:
Move the decimal point two places to the left
Step-by-step explanation:
Answer:
To change a percent to a decimal we divide by 100. This is the same as moving the decimal point two places to the left. For example, 15% is equivalent to the decimal 0.15.
Step-by-step explanation:
which quadrant will be completely shaded by the graph of 2x+3y ≥-6
Answers
Answer:
quadrant I
Step-by-step explanation:
Use front-end estimation and choose the best estimate of 6123 ÷ 222.
A. 3
B. 30
C. 250
D. 300
Answers
Answer:
B
Step-by-step explanation:
Answer
it is b 30 was the best estimate
Twice as many students are in the chess club as in the fencing club.The number of students in the fencing club is one fifth the number of students in the cooking club.There are 42 more students in the cooking club than in the chess club.How many students are in the chess club?
Answers
Answer:
28 students
Step-by-step explanation:
Let number of students in cooking club = x
Number of students in fencing club = 1/5 x
Number of students in chess club = 2(1/5)x
Since, There are 42 more students in the cooking club than in the chess club
Then ;
Number of students in chess club = Number of students in cooking club - 42
2(1/5)x = x - 42
(2/5)x - x = - 42
(2/5)x - x = - 42
-0.6x = - 42
x = 42 / 0.6
x = 70
Hence, number of students in chess club :
(2/5) * 70 = 28
how do you find 20% plus 35%
Answers
Answer:
55%
Step-by-step explanation:
20% + 35% = 55%I hope this helps!
Riley earned $5 for 1 2 of an hour babysitting. What is her hourly rate? Simplify your answer and write it as a proper fraction, mixed number, or whole number.
Answers
Answer:
Riley's hourly rate is $10
Step-by-step explanation:
Riley earned $5 for 1/2 of an hour babysitting. What is her hourly rate?
1/2 of an hour = $5
1 hour = $x
Cross Multiply
1/2 × x = $5 × 1
x = $5 ÷ 1/2
x = $5 × 2
x = $10
Hence, Riley's hourly rate is $10
if anyone could please help me with this problem i’d appreciate it:)
Answers
Answer:
2 so A
Step-by-step explanation:
Use PEMDAS.
simplify everything in the parentheses on the left side and get 1 and multiply that by 14 which gives you 14.
on the right side, in the parentheses you
would get 2
14/2 is 7.
which of these tables represents a linear function?
Answers
Answer:
table b
Step-by-step explanation:
Linear equations have a constant pattern in the y values and the second table consistently decreases by 1