hi, can anyone help with b) and c)?
Answer:
steps below
Step-by-step explanation:
From the graph: parabola pass (0,4) (3,4) (1,2)
equation: y = ax² + bx + c
(0,4): c = 4
(3,4): 9a + 3b + 4 = 4 9a+3b = 0 3a + b = 0 ... (1)
(1,2): a + b + 4 = 2 a+b = -2 ... (2)
(1)-(2): 2a = 2 a = 1
(2): b = -3
parabola equation: f(x) = x² - 3x +4
(a) f(3) = 3² - 3*3 + 4 = 4
(b) normal line: parallel to tangent line y = 3x -5 at (3,4)
slope of line N: -1/3 pass (3,4)
equation of N: (y-4)/(x-3) = -1/3 y-4 = -1/3 x + 1
line N: 1/3 x + y - 5 = 0
(c) picture attached
Solve the equation for the y-value and choose whether it is a direct variation or inverse variation
xy = 7
Answer: Choice B
y = 7/x
inverse variation
=========================================================
Explanation:
We divide both sides by x to isolate y. That's how we go from xy = 7 to y = 7/x
This is an inverse variation because it's in the form y = k/x. The constant is k = 7.
Kent has already saved $150 and he plans to save $20 every week. Proportional or Non-proportional
Answer:
this problem is Non-proportional
Step-by-step explanation:
hope this helps
Help me please this is due please help
Answer:
2.8in^2
Step-by-step explanation:
3.2 * 0.875 = 2.8
Hello there!
To find the area of this rectangle, we must multiply the length times the width:
A=[tex]3\frac{1}{5} *\frac{7}{8}[/tex]
Let's convert the mixed number into an improper fraction:
[tex]\frac{16}{5} *\frac{7}{8}[/tex]
Do you see what I see?
16 and 8 can be reduced. Divide by 8:
[tex]\frac{2}{5} *\frac{7}{1}[/tex]
Now multiply:
[tex]\frac{14}{5} \\[/tex]
Hope it helps you!
#HaveAnAmazingDay
~Just a joyful teen
[tex]GraceRosalia :)\\****************************************\\Comment:[/tex]
If my answer was helpful, please mark Brainliest! :)
how would I solve this??
Answer:
y = 140
Step-by-step explanation:
you'd do:
y=25(7)-35
y=175-35
y=140
to double-check your math:
140 = 25(7)-35
both sides will equal 140 (or the same value) if done properly
3x – 15 = 39
=
What does x equal
Answer:
X=18
Step-by-step explanation:
To isolate X you need to get rid of the -15 to do that you can add 15 on both sides of the equation resulting in 3x=54 now you need to divide both sides by 3 to get x on its own which is X=18.
Jeff walks 3 1/2 miles in 3/4 hour. In 1 1/4 hour Sarah walks 6 3/4 miles. Who walks faster
SHOW YOUR WORK FOR EACH ONE!
5. 10(x − 1)
6) −7(1 + 4x)
7) 7(−v − 7)
8) 7(2 − x)
9) 4(−7 − x)
10) 5(k − 5)
Answer:
PLZ MARK BRAINLIEST
Step-by-step explanation:
5. Distribute 10 (x - 1 )
10x - 10 = 10x -10
6. -7 (1+4x)
-7 ( 4x +1)
= -28x -7
7. 7 (-v-7)
= - 7v - 49
8. 7 ( 2 - x )
7 (- x + 2 )
= - 7 x + 14
9. 4 ( - 7 - x )
4 ( - x - 7)
= -4 x -28
10. 5 ( k - 5 )
5k - 25
= 5k - 25
=
?
(5
4
⋅b
−10
)
−6
[tex](5^{4} *\frac{1}{b^{10} }) ^{-6}[/tex]
[tex](\frac{5^{4} }{b^{10} } )^{-6}[/tex]
[tex]\frac{b^{60} }{5^{24} }[/tex]
Find the cube of the number 50
Answer:
125000
Step-by-step explanation:
SHOW YOUR WORK FOR CREDIT!
2. 9(1 − 3n)
A) 3n + 35
B) −5n + 35
C) −5n − 10
D) 9 − 27n 3)
How many ways can you make the number 2? (Using consecutive numbers)
Answer
For any two consecutive odd numbers, the difference is 2. For example, 3 and 5 are two consecutive odd numbers, their difference = 5 - 3 = 2. For any two consecutive even numbers, the difference is 2. For example, 6 and 8 are two consecutive even numbers, their difference = 8 - 6 = 2.
What is 10/16-3/16=
Answer:
7/16
Step-by-step explanation:
please give brainliest
who wants points answer this ;)
5 x 5
Answer:
25
Step-by-step explanation:
ez thanks for the fr3e points
Have a good day bro cya)
Which of the following ordered pairs make this
equation true?
y = 2x + 1
A. (1,2)
B. (2,5)
C. (7,3)
D. (9, 4)
Answer:
B. (2, 5)
Step-by-step explanation:
If x = 2,
y = 2(2) + 1
= 5.
A functionf(x) is graphed on the coordinate plane.
What is the function rule in slope-intercept form?
Enter your answer in the box.
f(x)=
Answer:
y = -1/2x + b meaning f(x) = -1/2x + b
Step-by-step explanation:
Use two points on the graph that you can find the value of or use Slope = raise/run
let use points (2,0) and (0, 1)
slope = (change in the y-value)/(change in the x-value.
slope = (1 - 0)/(0 - 2)
slope = 1/-2 or -1/2
Or starting at point (2, 0) the run(x movement) = -2 and the raise is 1.
slope = raise/run
slope = 1/-2 or -1/2
Using one point (2,0) and the slope of -1/2, substitute into the slope intersect form, y = mx + b, and solve for "b" .
y= mx + b
0 = -1/2(2) + b
0 = -1 + b
1 = b
Now write your equation: y = mx +b where m = -1/2 and b = 1
y = -1/2x +b
What is the equation of the line parallel to the line with the equation −x+3y=−3
that passes through the point (1, –6)
Answer:
y = 1/3x - 19/3
Step-by-step explanation:
3y = x -3
y = 1/3x -3
Slope = 1/3
Point= (1,-6)
y-intercept = -6 - (1/3)(1) = -6 - 1/3 = -19/3
A flock of birds perched on a tree. In the morning, each bird perched 1 tree and 1 bird left. In the afternoon, 2 chicks perched, 1 tree left over. Ask how many birds, how many trees?
Answer:
2 birds 1 tree
Step-by-step explanation:
I think only not sure
What is the answer for x?
Answer:
x = -5/7
Step-by-step explanation:
Divide. 46 532 Enter your answer by filling in the boxes
Answer:
11.5652173913
Step-by-step explanation:
You might have to round
It rained 20% of the time during Sping. There are 90 days in Spring. How many total dayd did it rain?
Answer: 18 days
Step-by-step explanation: you multiply 90 by 0.2 and you get 18
Help me with the question in the image it’s geometry
Answer:
<BAC=100°
Step-by-step explanation:
<ACB = <DCE - vertical angles are congruent
<ACB = 45° - substitute <DCE = 45° <ACB = <DCE
<ABC + <ACB + <BAC = 180° - angle sum theorem
35° + 45° + <BAC = 180° - substitute <ABC = 35°, <ACB = 45° INTO <ABC + <ACB + <BAC = 180 °
35°+ 45° + <BAC = 180°
180° - 80° = 100
Using the slope formula, find the slope of the line through the given points.
(12,0) and (4,-6)
Answer:
Step-by-step explanation:
gradient = y2-y1/x2-x1
-6-0/4-12
-6/-8
=3/4
write factors of a2b
Answer:
The factors of a^2b is a×a×b.
May I please receive help?
Answer:
you may
2x+15+4x+21=90 simplified is 6x+36=90
m<a=33º
m<b=90º
m<c=57º
Step-by-step explanation:
6x+36=90
6x=54
x=9
2(9)+15=33
4(9)+21=57
WILL GIVE BRAINLIEST TO ANSWER
Answer:
A , D , E
Step-by-step explanation:
Substitute x = 2 into f(x) and check if the result is 4
(a)
f(2) = 2² = 4 ← then f(2) = 4
(b)
f(2) = 2 + 6 = 8 ≠ 4
(c)
f(2) = 4(2) + 2 = 8 + 2 = 10 ≠ 4
(d)
f(2) = 2² = 4 ← then f(2) = 4
(e)
f(2) = 8(2) - 12 = 16 - 12 = 4 ← then f(2) = 4
PLEASE HELP IT’S DUE TMR
you only have to answer F
Answer:
1 bat : 0 hits
Step-by-step explanation:
To get this unit rate all you have to do is divide both sides by 4.
(4/4) : (0/4) = 1:0
We get the same number of hits as in the original problem because 0 divided by any number (other than 0) will always equal 0.
Can I get brainliest please?
writing carla has already written 10 pages of a novel she plans to write 15 additional pages per month until she is finished A.write an equation to find the total number of pages P written after any number of months MB. graph the equation on the grid at the rightC. find the total number of pages written after 5 months
Answer:
P = 5M + 10
Step-by-step explanation:
15 pages/month * M months + 10 pages = P pages
5 Months = 5*15 + 10 = 85 pages
Are the two lines parallel?
If so, then what is the slope?
Yes, and the slope is 2.
Yes, and the slope is 5/2
res, and the slope is 2/5
No, They are not parallel
Answer and Step-by-step explanation:
(3rd option) The two lines are parallel, and they have a slope of [tex]\frac{2}{5}[/tex].
First, we can see that the two lines look parallel (meaning that if you were to go beyond what the graph shows (unless the graph shows an intersection), the lines at no point will intersect).
Second, If you found the slope of each line as well, (slope = rise over run, count up and then count right in this scenario from any point), they are the same, meaning they must be parallel to each other.
#teamtrees #PAW (Plant And Water)
I hope this helps!
Which of the following expressions is equivalent to 4(2x+y) ?
Answer:
what expressions
Step-by-step explanation:
Answer:
Step-by-step explanation:
First expand the expression so you know the coefficients of x and y.
4(2x+y+2y) = 4(2x+3y) = 8x+12y
8x+12y = 8x+12y
6x+7y ≠ 6x+12y
8x+y+2y = 8x + 3y ≠ 8x+12y
8x+4y+8y = 8x+12y = 8x+12y
hope this help