Answer:
C
Step-by-step explanation:
We want to determine the vertex of the quadratic equation:
[tex]\displaystyle y = -x^2 + 2x + 1[/tex]
Recall that the vertex is given by the formulas:
[tex]\displaystyle \text{Vertex} = \left(-\frac{b}{2a}, f\left(-\frac{b}{2a}\right)\right)[/tex]
In this case, a = -1, b = 2, and c = 1.
Determine the x-coordinate of the vertex:
[tex]\displaystyle x = -\frac{(2)}{2(-1)} = 1[/tex]
To determine the y-coordinate, evaluate the function at x = 1:
[tex]\displaystyle \begin{aligned} y(1)&= -(1)^2 + 2(1) + 1 \\ &= 2\end{aligned}[/tex]
In conclusion, the vertex of the quadratic equation is (1, 2).
Hence, our answer is C.
Nevaeh rolls a standard six-sided die, numbered from 1 to 6. Which word or phrase
describes the probability that she will roll a 7?
certain
unlikely
Submit Answer
impossible
likely
DOLL
Answer:
Step-by-step explanation:
If she had two dice, a seven is the most common roll you can get, although the odds are still against you.
To get a seven with just 1 die is impossible.
Need help on this question please and thank you
9514 1404 393
Answer:
D. f^-1(x) = x^3 +15
Step-by-step explanation:
The inverse of ...
y = f(x)
is ...
x = f(y)
Solving this for y gives ...
x = ∛(y -15)
x³ = y -15 . . . . . . . . cube both sides
x³ +15 = y . . . . . . . add 15
The inverse function is ...
f^-1(x) = x³ +15
8b-4x+5 use b=-2 and x=-9
Simplified is?
Answer:
[tex]8b - 4x + 5 \\ \\ 8( - 2) - 4( - 9) + 5 \\ \\ - 16 + 36 + 5 \\ \\ = 25[/tex]
I hope I helped you^_^
Answer:
25
Explanation:
Evaluate [tex]8(-2)-4(-9)+5[/tex]
Lee weighs 130 4/5 pounds. He lost 5.2 pounds then gained 3 pounds. What is Lee's
current weight? Write an expression and solve.
Answer:
128.6 pounds
Step-by-step explanation:
130 4/5 - 5.2 + 3
=, 128.6pounds
Here’s a challenge start with the 1st number 15 subtract it by 3 multiply by 4x (solve it too) and then divide or add by 5.70 and explain what you did :) thank you (I’ll mark smartest for whoever does this challenge (btw you guys have over 6 years lol) to answer
10 sqrt 45
please show how you did it
[tex]10\sqrt{45}=10\sqrt{9\cdot5}=10\sqrt{3^2\cdot5}=\\\\=10\cdot3\sqrt5=\boxed{30\sqrt5}[/tex]
What least number should be subtracted from 45,632 so that the number is divisible by 100 (plzz answer)
Answer:
32
Step-by-step explanation:
I don't know if I am correct but if you subtract 32 from 45632 then you will get 45600 which is easily divisible by 100, so your answer is 32
HELPPP PLS THIS IS DUE TOMARRROW
Answer:
It is second bubble
for explanation
○One
○Two
○Three
○Four
Answer:
(-10)+3 1/2 = -6 1/2
Step-by-step explanation:
It first points to the left. Which means subtracting. It shows that it starts at zero so, keep that in mind. Then it points to the right which means your adding 3 1/2. So you would start at zero and subtract 10. (-10). Then you would add 3 1/2. +3 1/2
(-10) + 3 1/2
To then make -6 1/2
I really need help now
Answer:
i believe and know the answer is x = - 10
Step-by-step explanation:
i did it on paper dont want to explain i have worked my brain to much
IV - SOLVING 1. Find the 7th term in the arithmetic sequence 6, 10, 16, ... Show your solution.
Step-by-step explanation:
the distance between 6 and 10 is 4, same distance between 10 to 16 is 6 by the way:
16+8=24
24+10=34
34+12=46
46+14=58 and 58 is 7th term in arithmetic sequence.
I hope it will help you.
I really need help on this!!!!!
Why is the sum of the interior angles in a triangle different in Euclidean geometry vs Riemannian geometry?
Answer:
n spherical geometry angles are defined between great circles. ... The sum of the interior angles of a triangle ALWAYS exceeds 180 degrees. In Euclidean Geometry, two lines that intersect form exactly one point. However, in Spherical Geometry, when there are two great circles, they form exactly two intersecting points.
Step-by-step explanation:
Answer:
in riemannian geometry there is only one parallel to the given line.euclud second postulate is a straight line of fininit length that can be continued continuously without bounds
PLEASE HELP ILL GIVE 10 POINTS X2
Dana recorded a temperature drop of 2º and a second temperature drop of 3º. What is the total change in temperature?
Answer:
1° or 5° i think one of those answer
The total change in temperature is a decrease of 5 degrees Celsius (ºC).
To find the total change in temperature, you simply add the individual temperature drops together.
1. First Temperature Drop: -2º (negative because it's a drop)
2. Second Temperature Drop: -3º (again, negative because it's a drop)
Now add these two drops together:
Total Change in Temperature = (-2º) + (-3º) = -5º
So, the total change in temperature is a decrease of 5 degrees Celsius (ºC).
To know more about change in temperature, refer here:
https://brainly.com/question/30046334
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Can I get a bit of help
she can count the number of row and the number of square in each row, or she can add 6 and 8
A farmer plowed 9/10 of a acre in the morning and 1/2 of an acre in the afternoon. How many acres did the farmer plow in all?
Answer:
7/5
Step-by-step explanation:
Answer:
1[tex]\frac{2}{5}[/tex] of an acre or 1.4 acres.
Step-by-step explanation:
The least common multiple of 10 and 2 is 10.
Convert [tex]\frac{9}{10}[/tex] and [tex]\frac{1}{2}[/tex] to fractions with a denominator of 10.
[tex]\frac{9}{10}[/tex]+[tex]\frac{5}{10}[/tex]
Since these fractions now have the same denominator, add them by adding the numerators.
[tex]\frac{9+5}{10}[/tex]
Add 9 and 5 to get 14.
[tex]\frac{14}{10}[/tex]
Reduce the fraction to the lowest terms by extracting and canceling out 2.
[tex]\frac{7}{5}[/tex]= [tex]1\frac{2}{5}[/tex] =1.4
hope this helps!
What is the distance between these two points?
Answer:
Step-by-step explanation:
4,8
Answer: sqrt 145
Step-by-step explanation:
(2,7) (-6,-2)
d = sqrt [(x-x)^2+(y-y)^2]
d = sqrt[(-6-2)^2+(-2-7)^2]
d = sqrt(8^2 + -9^2)
d = sqrt (64+81) = sqrt 145
420 hg = _____ cg
please help me
Answer:
420 hg = __4200000___ cg
Step-by-step explanation:
please mark me brainliestwork out the following product,giving your answer as product of prime factor in power a) of the following product is in your answer as a product of prime factor in power 480 x 175
Diyoshana, Hemant and Rupesh got different answers for this problem: {-10-3(10÷2)}-4.
Diyoshana's answer was 1, Hemant's answer was -29, and Rupesh's answer was 21
a). Which student had the correct answer?
b). Show and explain how other two students got their answers. What errors did they make?
My opinion on this:
this is a way to long question
I'm giving 20 points for this
Answer:
a)hemant is correct
b) they didn't solve this according to BoDMAS so they got wrong answer
a) The student Hemant's answer -29 is the correct answer, b) The errors they make is the change of sign in the first step.
What is simplification of an expression?
Simplification of an expression is the process of writing an expression in the most efficient and compact form without affecting the value of the original expression. It involves, multiply out the brackets and then simplify the resulting expression by collecting the like terms.
For the given situation,
The expression is {-10-3(10÷2)}-4
⇒ [tex][-10-3(\frac{10}{2} )]-4[/tex]
⇒ [tex][-10-3(5)]-4[/tex]
⇒ [tex][-10-15]-4[/tex]
⇒ [tex][-25]-4[/tex]
⇒ [tex]-29[/tex]
a) The student Hemant's answer -29 is the correct answer.
b) The student Diyoshana did mistake in sign in step 1 as
⇒ [tex][-10+3(\frac{10}{2} )]-4[/tex]
⇒ [tex][-10+15]-4[/tex]
⇒ [tex]5-4[/tex]
⇒ [tex]1[/tex]
The student Rupesh did mistake in sign in step 1 as
⇒ [tex][10+3(\frac{10}{2} )]-4[/tex]
⇒ [tex]25-4[/tex]
⇒ [tex]21[/tex]
Hence we can conclude that a) The student Hemant's answer -29 is the correct answer, b) The errors they make is the change of sign in the first step.
Learn more about simplification of an expression here
https://brainly.com/question/11444405
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Which set of numbers is contained in the set of rational numbers?
A Whole Numbers
B Natural Numbers
Integers
D
all of the above
Answer:
All of the above.
Step-by-step explanation:
All whole numbers are rational numbers. For example 5 can be be expressed as 5/1 thus a rational number.All integers are whole numbers thus they are all rational numbers.All natural numbers are rational numbers. For example, 5 is a natural number and can be expressed as 5/1 which is a rational number.6 to the power of 3 times w divided by 6 to the 2nd power
Answer:
The equation needed to solve your problem is below,...!
Step-by-step explanation:
[tex]6^{3}*\frac{w}{6}^{2}[/tex]
Chow,...!
If three circular metal discs of equal thickness whose radii are 5cm, 20cm and 40cm are melted down to form one circular disc of the same thickness, find its radius.
Answer: 45 (cm)
Step-by-step explanation:
Since the discs have the same thickness, we will think about the areas.
Let say x the new radius:
[tex]\pi*5^2+\pi*20^2+\pi*40^2=\pi*x^2\\\Longrightarrow\ 5^2+20^2+40^2=x^2\\\\\Longrightarrow\ 2025=x^2\\\\\Longrightarrow\ x=\sqrt{2025} =45[/tex]
Write the first five terms of a sequence that has 8 as its second term.
Step-by-step explanation:
im kinda busy can I answer your questions later??
give 2/2 examples of finite,infiniteand empty sets
Answer:
[tex]finite \: set \: \\ 1) set \: of \: one \: digit \: whole \: number \\2) set \: of \: number \: of \: players \: in \: a \: cricket \: team \\ infinite \: set \\ 1)set \: of \: all \: whole \: numbers \\ 2) \: set \: o f \: all \: ponts \: in \: a \: line \\ empty \: set \\ 1)set \: of \: whole \: numbers \: between \: 1 \: and \: 2 \\ 2)set \: of \: prime \: numbers \: between \: 3\: and \: 5 \\ thank \: you[/tex]
IF x=1, y= -3 ,find the value of 5x 2square + 3xy -y 2square .
Please help me in full details
Step-by-step explanation:
sorry man i wish i could help
Need help with # 12 for distance/ midpoints formula. And another problem for #1 distance, segment and radicals ? Please help
Step-by-step explanation:
#12
PQ = 6x + 25
QR = 16 - 3x
PR = 6x + 25 + 16 - 3x
PR = 3x + 41
#1
D = √(-4 - 5)² + (-7 - 2)²
D = √(-9)² + (-9)²
D = √81 + 81
D = √162
D = 9√2
if you can figure everything out that amazing,but one by one is alright as well
Answer:
x=14°
SEE the IMAGE FOR SOLUTION
PLEASE HELP ME WITH THIS QUESTION!!! WILL MARK BRAINLIEST
Answer:
non-linear, y = -6, x = 2 & x = 6, y = 2 & x = 4, above.
Step-by-step explanation:
The graph is not a straight line so that means that it is linear.
The y-intercept is the point at which the function touches the y-axis, which is at the coordinate point (0, -6), so y = -6.
The x-intercepts are the points at which the function touches the x-axis, which is at x = 2 and x = 6.
The highest y value is y = 2, and it happens when x =4.
Between x = 2 and x = 6, the function is above the x-axis line, so that means it must be above 0.
Question is in picture
[tex]|2x|\geq1\\\\2x\ge1 \ \ \text{or} \ \ 2x\leq-1\\\\\huge\boxed{x\geq\frac{1}{2} \ \ \text{or} \ \ x\leq-\frac{1}{2}}[/tex]
Simplify the expression: 63(13−18)+24÷6
Answer:
-311
Step-by-step explanation:
