Answer:
Step-by-step explanation:
y=x^2+ax+3
y=(4)^2+a(4)+3
y=16+4a+3
y=19+4a
y-19=4a
y-19/4=a
a=y-4.75
Answer this question, and dnt answer it if u dnt know the answer :|
Answer: 45
Step-by-step explanation:
The sides are 2x,3x,4x
Add them up and you have 9x=45
Yak Travel Agency arranges trips for climbing Mount Everest. For each trip, they charge an initial fee in addition to \$0.15$0.15dollar sign, 0, point, 15 for each vertical meter climbed. For instance, the price for climbing all the way to the summit, which is 350035003500 meters above the base of the mountain, is \$645$645dollar sign, 645.
Let yyy represent the fee (in dollars) of a trip where they climbed xxx vertical meters.
Complete the equation for the relationship between the fee and vertical distance.
Answer:
[tex]y = 120 + 0.15x[/tex]
Step-by-step explanation:
Given
[tex]Additional\ Fee = \$0.15[/tex] per vertical meter
[tex]y = fee[/tex] per x meter
[tex]x = vertical\ meter[/tex]
For:
[tex]x = 3500[/tex] --- [tex]y = 645[/tex]
Required
Determine the equation that relates y to x
Let the initial fee be represented with m
The equation that relates y to x is:
[tex]y = Initial\ Fee + Additional\ Fee * Vertical\ Meter[/tex]
This gives
[tex]y = m + 0.15 * x[/tex]
We need to first solve for m
From the question,
[tex]x = 3500[/tex] when [tex]y = 645[/tex]
So:
[tex]645 = m + 0.15 * 3500[/tex]
[tex]645 = m + 525[/tex]
Make m the subject
[tex]m = 645 - 525[/tex]
[tex]m = 120[/tex]
So, the initial fee is $120
Substitute 120 for m in [tex]y = m + 0.15 * x[/tex]
[tex]y = 120 + 0.15 * x[/tex]
[tex]y = 120 + 0.15x[/tex]
Hence, the required equation is: [tex]y = 120 + 0.15x[/tex]
PLZ HELP!!
f(x) = x2 is graphed in red. Which of the following
functions is graphed to the left in purple?
O f(x) = -(x + 3) 2 - 2
Of(x) = (x – 3)2 +2
O f(x) = - ] (x+3)2 - 2
O f(x) = (x – 3)2 – 2
10
9514 1404 393
Answer:
f(x) = -1/4(x +3)² -2
Step-by-step explanation:
The graph is shifted left 3 and down 2. It is also reflected over the x-axis and vertically compressed. The leading coefficient will be a negative fraction, and the offsets will replace x with x+3, and will add -2 to the scaled function.
The result is shown below.
HELP PLS WILL MARK BRAINLIEST!!!!!!!!!!!!
Help me plzzzzzzzzzzzzzz
Please hurry I am being timed!
The three angles of a triangle have equal measures. The sum of their measures is 180º. What is the measure of each angle?
A. 45º
B. 30º
C. 60º
D. 55º
Please select the best answer from the choices provided
Sorry if this is easy for you I'm bad at math
Maria would like to leave a tip (D) of at least 15% of her total dinner bill (3). Which inequality could Maria use to calculate the possible amounts she could leave as a tip?
OT ≥0.15B
O T > 0.15B
O T ≤ 0.15B
OT < 0.15B
An
Step-by-step explanation:
Lynne was wondering which game was more popular so she aksed her friends which they liked to play more, FortNite or Among Us. She found that of the 80 people who responded, 0.55 of them preferred FortNite, and 30% of them preferred Among Us. How many more of her friends prefer FortNite than Among Us?
Answer:
20 more of her friends prefer FortNite than Among Us
Step-by-step explanation:
Lynne was wondering which game was more popular so she aksed her friends which they liked to play more, FortNite or Among Us.
She found that of the 80 people who responded:
For fortnite:
0.55 of them preferred FortNite
Hence, = 0.55 × 80 people
= 44 people preferred fortnite
For Among us
30% of them preferred Among Us.
= 30% × 80 people
= 30/100 × 80 people
= 24 people preferred Among us.
How many more of her friends prefer FortNite than Among Us?
This is calculated as:
44 - 24
= 20 more people
Hence, 20 more of her friends prefer FortNite than Among Us
Answer:
20 more of her friends prefer Forte than Among
If i = -1, then i^2 =
Answer:
1
Step-by-step explanation:
The exponent is the number of times you multiply the base aka i in this case.
i = -1
Substitute -1 for i.
-1^2
-1 x -1 = 1
because when you multiply two negatives they make a positive.
mark me brainliest : )
Suzanna walked two over seven of a mile in two over five of an hour. What is her unit rate in miles per hour?
Select one:
a. two sevenths over two fifths = one and two fifths miles per hour
b. two fifths over two sevenths = one and two fifths miles per hour
c. two sevenths over two fifths = five over seven mile per hour
d. two fifths over two sevenths = five over seven mile per hour
PLS HELP BRIANLY ISNT WORKING FOR ME SO I NEED HELP ASAP.
Answer:
5/7 mile per hour.
Divide 2/7 by 2/5 to get to 0.714. After that, convert the decimal to a fraction and you get your answer.
GIRL U BETTER MARK MOST BRAINLIEST ALL THOSE TIMES
I MARKED U
Answer:
two sevenths over two fifths = five over seven mile per hour
Step-by-step explanation:
took da test
In the metric system, which prefix would you use for "1/100"?
A. Kilo-
B. Milli-
C. Centi-
O D. Hecto-
Answer:
C
Step-by-step explanation:
Centi means 1/100.
Answer: C. Centi-
Step-by-step explanation:
It comes from Latin. You can remember that 0ne Cent is 1/100 of a dollar.
Find the missing length.
С
9
c= /[?]
TX
Pythagorean Theorem: a2 + b2 = c2
3
Don’t mind the broken laptop
Answer:
c = [tex]\sqrt{90}[/tex]
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse c is equal to the sum of the squares on the other 2 sides, that is
c² = 9² + 3² = 81 + 9 = 90 ( take the square root of both sides )
c = [tex]\sqrt{90}[/tex]
f(x)= x^2 + 10f(x)=x
2
+10f, left parenthesis, x, right parenthesis, equals, x, squared, plus, 10
Over which interval does fff have a positive average rate of change?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
[-3,3][−3,3]open bracket, minus, 3, comma, 3, close bracket
(Choice B)
B
[-4,-1][−4,−1]open bracket, minus, 4, comma, minus, 1, close bracket
(Choice C)
C
[-3,1][−3,1]open bracket, minus, 3, comma, 1, close bracket
(Choice D)
D
[-1,2][−1,2]
Answer:
The option D represents an interval with a positive average rate of change.
Step-by-step explanation:
Let [tex]f(x) = x^{2}+10[/tex], the average rate of change on the interval [tex][a,b][/tex] is represented by the definition of the secant line:
[tex]\bar f = \frac{f(b) -f(a)}{b-a}[/tex] (1)
Where:
[tex]a[/tex], [tex]b[/tex] - Lower and upper bounds, dimensionless.
[tex]f(a)[/tex], [tex]f(b)[/tex] - Function evaluated at lower and upper bounds, dimensionless.
Now we proceed to check each option:
A. [tex]a = -3[/tex], [tex]b = 3[/tex]
[tex]\bar f = \frac{19-19}{3-(-3)}[/tex]
[tex]\bar f = 0[/tex]
B. [tex]a = -4[/tex], [tex]b = -1[/tex]
[tex]\bar f = \frac{11-26}{(-1)-(-4)}[/tex]
[tex]\bar f = -5[/tex]
C. [tex]a = -3[/tex], [tex]b = 1[/tex]
[tex]\bar f = \frac{11-19}{1-(-3)}[/tex]
[tex]\bar f = -2[/tex]
D. [tex]a = -1[/tex]. [tex]b = 2[/tex]
[tex]\bar f = \frac{14-11}{2-(-1)}[/tex]
[tex]\bar f = 1[/tex]
The option D represents an interval with a positive average rate of change.
Answer:
It would be D
Step-by-step explanation:
If I was asked to think of a number and multiply it by 2, I could
write this algebraically as 2x.
Write the following algebraically, using x as your unknown.
“I think of a number, take away 1 and multiply the result by 3."
Answer:
X-1=X×3
Step-by-step explanation:
it's pretty easy you just got to be focus
you can ask for help anytime
EASY MATH QUESTION HELP! Under the Angle Addition Postulate, which equation would be valid?
What is true about angles 2 and 7 in the picture below?
Answer: Whats True about 2 angles and 7 anglesis that They are not the same number and one of them is less and great
Step-by-step explanation: This is not a easy math question.
Please help thank you so much
Answer:
yes
when the point is pugged into the equality, it works
1. Analyze the question below. What is the slope of the line?
y = 10
A. m = -10/1
B. m = -100/10
C. m = 10
D. m = All of the Above
2. What is the slope of the line?
y = -9/3x
A. m = -9/3
B. m = -3
C. m = -9/-3
D. m = All of the Above
3. What is the slope of the line?
y = -9x
A. m = -9/1
B. m = -9/-1
C. m = -9
D. All of the Above
4. What is the slope of the line?
7x = y
A. m = -7/1
B. m = 7
C. m = 1/7
D. All of the above
5. How do I find a slope on the linear graph in simplest form?
1.c
2.a
3.b
4.b
5. not enough points for me to answer
Answer:
1.c
2.a
3.b
4.b
5. not enough points for me to answer
Step-by-step explanation:
1.c
2.a
3.b
4.b
5. not enough points for me to answer
a bolt has 6 1/2 turns per inch how many turns would be in 2 1/2 inches of threads
Answer:
famwfklawf'ajnkpfjnflasjfajlkfjlk/ajkljkljklasjkfjkajkjkfajkfjkj/fj/fsklafnwklasj'fawJFAKLfajfl;ajfafjafafafafaf
Step-by-step explanation:
I dont understand this at all. I really need help!
Hello!
[tex]\large\boxed{x^{4}}[/tex]
Recall that:
[tex]\sqrt[z]{x^{y} }[/tex] is equal to [tex]x^{\frac{y}{z} }[/tex]. Therefore:
[tex]\sqrt[3]{x^{2} } = x^{\frac{2}{3} }[/tex]
There is also an exponent of '6' outside. According to exponential properties, when an exponent is within an exponent, you multiply them together. Therefore:
[tex](x^{\frac{2}{3} })^{6} = x^{\frac{2}{3}* 6 } = x^{\frac{12}{3} } = x^{4}[/tex]
A marinade for enough meat to food 100 people needs 12 1/2 cups of olive oil. How many cups of olive oil are needed to make a marinade for 25 people?
What is the equation to find d
Solve |1 - 4x| > 7
I need help pls
Answer:
the answer is 28
Step-by-step explanation:
help me pleaseeeeeeeeee
Answer:
C) [tex]45^{\circ}[/tex]
Step-by-step explanation:
There are 2 pi radians in 360 degrees:
[tex]\frac{17\pi}{4}rad \cdot\frac{360^{\circ}}{2\pi{rad}}=765^{\circ}=45^{\circ}[/tex]
Answer: I think it 45°
Explanation:360-315=45
A 12 volt battery is connected to two resistors in series. The first resistor has a resitance value of 5 Ohms and the current through the circuit is 1.5 Amps. What is the value of the second resistor?
a
9 Ohms
b
1.5 Ohms
c
5 Ohms
d
3 Ohms
Answer:
3 Ohms
Step-by-step explanation:
U1 = 5 ohm × 1.5 amps = 7.5 V
U2 = U - U1 = 12 - 7.5 = 4.5 V
R2 = U2 / I = 4.5 / 1.5 = 3 Ohms
is 2(x+3)=5x+6-3x always true or never true?
Answer:
always true
Step-by-step explanation:
Distribute the left side
2(x + 3) = 2x + 6
Simplify the right side
5x + 6 - 3x ← collect like terms
= 2x + 6
Thus
left side = right side , so always true
Equation 2(x + 3) = 5x + 6 - 3x is an identity which is always true.
What is identity?An identity is an equation which is always true, no matter what values are substituted.
Identities can be written with the sign ≡.
Given equation,
2(x + 3) = 5x + 6 - 3x
Simplifying
2x + 6 = 2x + 6
LHS = RHS
Hence, equation 2(x + 3) = 5x + 6 - 3x is always true.
Learn more about identity here:
https://brainly.com/question/29125576
#SPJ2
When trying to find a common denominator, can you multiply the denominators and get a common denominator?(example: 3/7 2/5
7 x 5 = 35
2/35 3/35)
Answer:
im pretty sure you have to cross muliply
but i learned in school what ever you do to the top do to the bottom
hope it helps
sorry no definet answer
Step-by-step explanation:
What two equations are in this graph (slope intercept form if you can)
Answer:
use rise over run! this means "rise" (being the change in y, going up or down) divided by the "run" (being the change in x, going from left to the right).
Step-by-step explanation:
Use a positive or negative number to represent a stock market loss of $1,500.
Answer:
negative
Step-by-step explanation:
negative because you are losing something
How many solutions can be found for the system of linear equations represented on the graph?
A) no solution
B) one solution
C) two solutions
D) infinitely many solutions
Answer:
D, ininitely many
Step-by-step explanation:
A- incorrect since the lines intersect
B - incorrect since the lines intersect at more than one point
C - incorrect since the lines intersect at more than 2 points
D- correct since the lines intersect at infinitely many points (since they're the same line)
Answer:
D) infinitely many solutions
Step-by-step explanation:
we can see that the graphs shows two lines that are exactly one on top of the other. This means that every point on either line will also coincide with a point on the other line.
Because of this, every point on one line is also a solution on the other line, thus there are infinitely many solutions.
perimeter = 36 calculate
the value of x when x-2 in
square
Answer:
11
Step-by-step explanation:
36/4 = 9
9 = x-2
x = 11
Step-by-step explanation:
Perimeter = 36
length = x - 2
Perimeter of a square = 4 × length
36 = 4(x - 2)
dividing through by 4:
9 = x - 2
hence:
x = 9 + 2 = 11.