What’s the answer I’ll give brainliest(you gotta tell me how to give brainliest too)
Answers
Answer:
Man o dont know the answer but just give me brainalis
Step-by-step explanation:
wen you see my answer clike the hart buton and the buton that says make Brinalist
Answer:
B. [tex]k(x)=(-x+3)^{1/2}[/tex]
Step-by-step explanation:
When we're talking about a restricted domain, we're looking for a function that's undefined for certain values of x. A classic example is the function f(x) = 1/x. Division by 0 is undefined, so this restricts our domain to all real numbers except 0.
A key feature of our problem is in the exponents - are there any exponents that would limit the possible values of x? Let's strip away the rest of the details and just look at those powers for each option:
For A, let's look at the function [tex]f(x) = x^{1/5}[/tex]. Remember that fractional exponents are the same as roots, so we could also say [tex]f(x)=\sqrt[5]{x}[/tex]. Any odd root like this can take any value for x, positive and negative. This has to do with the fact that any odd power of a negative is always negative. So no restrictions on A.
For B, just looking at the exponent, let's see if there are restrictions on the function [tex]k(x) = x^{1/2}[/tex]. Again, we can rewrite the right side as a root: [tex]k(x) = \sqrt{x}[/tex].
Unline f(x), k(x) is restricted. The square root of a negative number has no real solutions, so k(x) comes with the restriction that x ≥ 0. We could look at C and D, but we've already found our solution at this point, so I'll stop here!
Related Questions
help me pls i don't know how to do this
Answers
Answer:
Step-by-step explanation:
Boreal forests are characterized by needle-leaved, drought tolerant, evergreen trees, and a climate consisting of long, cold winters and short, cool summers.
Erin is buying pizza for 12 people. She estimates that each person will eat 3 slices of pizza. Erin also knows that each pizza will cost $15.25 and will be cut into 8 slices. Which expression can be used to calculate the amount of money Erin needs for pizza?
Answers
Answer:
Total cost= 15.25*[(12*3)/8]
Step-by-step explanation:
The expression would be:
Total cost= 15.25*[(12*3)/8]
Prove:
Number of slices= 12 people*3 slices
Number of slices= 36
Number fo pizzas= number of slices/8
Number of pizzas= 36/8
Number of pizzas= 4.5 = 5 pizzas
Now, the total cost:
Total cost= number of pizzas*unitary cost
Total cost= 5*15.25
Total cost= $76.25
Please help! I have 35 minutes left! You can get 100 points!
Which expression is equivalent to 8 - (6r + 2)?
-6r + 6
2r +2
6r + 10
-6r + 10
Answers
Answer:
The expression equivalent to 8 - (6r + 2) is -6r + 6 ⇒ A
Step-by-step explanation:
Let us solve the question
∵ The expression is 8 - (6r + 2)
→ Multiply the bracket by (-)
∵ (-) × (+) = (-)
∴ 8 - (6r + 2) = 8 - 6r - 2
→ Add the like terms
∵ 8 - (6r + 2) = (8 - 2) - 6r
∴ 8 - (6r + 2) = 6 - 6r
→ Switch the terms
∴ 8 - (6r + 2) = -6r + 6
∴ The expression equivalent to 8 - (6r + 2) is -6r + 6
plss pls pls help and pls show ur work
Answers
The number of strawberry baskets sold was 44
Step-by-step explanation:
Let
x ----> the number of strawberry baskets sold
y ---> the number of raspberries baskets sold
we know that
In one morning, Katya sells 96 baskets for $644
so
----> equation A
---> equation B
Solve the system by graphing
Remember that the solution is the intersection point both graphs
using a graphing tool
The solution is the point (44.52)
see the attached figure
therefore
The number of strawberry baskets sold was 44 and the number of raspberries baskets sold was 52
Hope i helped! :)
<
y=-5%
3 2
4
21
2
2
✓-
zero slope
positive slope
undefined slope
negative slope
Answers
because the line is going down from left to right
What is the value of the expression –40 – (–50 – 2) + 10?
Plz help
Answers
Evaluate when f(-3) and f(7)
f(x) = {3x-1,tfx>4
{2x,tfx<4
_
Answers
Answers:
f(-3) = -6f(7) = 20======================================================
Explanation:
The piecewise function f(x) changes based on what the input is.
We have two cases:
Case A) if x > 4, then f(x) = 3x-1Case B) If [tex]x \le 4[/tex], then f(x) = 2xThe input x = -3 satisfies the inequality [tex]x \le 4[/tex], so we go with case B for this input
f(x) = 2x
f(-3) = 2(-3)
f(-3) = -6
In contrast, the input x = 7 satisfies the inequality x > 4. So we go for case A this time.
f(x) = 3x-1
f(7) = 3(7)-1
f(7) = 21-1
f(7) = 20
----------------------
Side note: It might be better to let g(x) = 3x-1 and h(x) = 2x. Then we could further say "If x > 4, then f(x) = g(x) OR if [tex]x \le 4[/tex], then f(x) = h(x)". Though this might be a more wordy definition.
A tabletop in the shape of a trapezoid has an area of 7,598 square centimeters. Its longer base measures
127 centimeters, and the shorter base is 105 centimeters. What is the height?
Answers
Answer:
65.5 cmStep-by-step explanation:
Trapezoid area formula:
A = 1/2(b1 + b2)hSubstitute values:
7598 = 1/2(127 + 105)h7598 = 116hh = 7598/116h = 65.5 cmTommy has $50 to spend at the local go kart track. Admission is $7 and each ride around the track costs $3. What is the most amount of rides Tommy can take around the track with his money
Answers
the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.
What are the coordinates of the point on the directed line segment from
(-4,-9) to (1, 1) that partitions the segment into a ratio of 3 to 2?
Answers
Answer:
(- 1, - 3 )
Step-by-step explanation:
Given endpoints (x₁, y₁ ) and (x₂, y₂ ) partitioned in the ratio m : n
Then using the Section formula the coordinates of the point are
( [tex]\frac{nx_{1}+mx_{2} }{m+n}[/tex], [tex]\frac{ny_{1}+my_{2} }{m+n}[/tex] )
Here (x₁, y₁ ) = (- 4, - 9), (x₂, y₂ ) = (1, 1) and m : n = 3 : 2 , then
( [tex]\frac{2(-4)+3(1)}{3+2}[/tex] , [tex]\frac{2(-9)+3(1)}{3+2}[/tex] )
= ( [tex]\frac{x}{y} \frac{-8+3}{5}[/tex], [tex]\frac{-18+3}{5}[/tex] )
= ( [tex]\frac{-5}{5}[/tex], [tex]\frac{-15}{5}[/tex] )
= ( - 1, - 3 )
Answer:
(-1 , -3)
Step-by-step explanation
For unknown reason, I can't save the explanation in this space. It's detailed in the attachment
Percents
Michael is leaving a 15% tip for his waitress. What percent of the
original price will he pay? Write your answer as a percent, decimal,
and fraction.
Answers
Answer:
Percentage: 115%
Decimal: 1.15
Fraction: [tex]\frac{23}{20}\\[/tex]
Step-by-step explanation:
Percentages, Fractions, and Decimals
Assume we set 100% as the original price of the food that Michael consumed. When he leaves a 15% tip for the waitress, he is really paying 100%+15%=115% of the original price.
Now we express 115% as a decimal, simply dividing by 100:
115% = 115/100 = 1.15
To express it as a fraction, we simplify the division instead of calculating it:
115% = [tex]\frac{115}{100}[/tex]
Simplifying by 5:
115% = [tex]\frac{23}{20}[/tex]
what is -12.41 as a fraction and it has to be in simplest form
Answers
Hey there!
“What is -12.41 as a simplest form fraction?”
• 12.41 / 1 which equals 12.41
• You have to MULTIPLY to REMOVE your TWO decimal area. You have to MULTIPLY the NUMERATOR and the DENOMINATOR BY 100
• 12.41/1 × 100/100
• CROSS MULTIPLY
12.41 × 100/1 × 100
12.41 × 100 = 1,241 ⬅️ Numerator
1 × 100 = 100 ⬅️ Denominator
= 1,241/100
• SIMPLIFY your IMPROPER FRACTION and you have your ANSWER
1,241/100 = 12 41/100
POSSIBLE ANSWER: –12 41/100 ☑️
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)
Write an algebraic rule to describe the transformation:
C(2, 1), O(0, 0) L(-5, 4), D(-2, 1) to C'(0, 1), 0'(-2, 0) L(-7, 4), D (-4 , 1 )
um pls help
Answers
11. Which rigid motion maps the
solid-line figure onto the
dotted-line figure?
Answers
Answer:
It should be a reflection.
Step-by-step explanation:
A reflection is a transformation representing a flip of a figure. Figures may be reflected in a point, a line, or a plane.
HELLLLLLP!!!!! PLEASE!!!!
Answers
Answer: Slope: -1 Y-intercept: -4
Step-by-step explanation:
Slope formula:
[tex]m = \frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]
[tex]m=\frac{-13 -(-6)}{9-2}= m=\frac{-13 + 6}{9-2}[/tex]
[tex]m=\frac{-7}{7\\}[/tex]
m = -1
When you draw this on the graph, the y-intercept is -4.
y = -4
y-intercept: (0,-4)
Evaluate the following expression:
3y2 - 4x + 2xy, when x = 2 and y = 5
Answers
Answer:
87Step-by-step explanation:
3×(5)^2 - 4×2 + 2×2×5
3×(5)^2 - 4×2 + 2×2×53×25 - 8 + 20
3×(5)^2 - 4×2 + 2×2×53×25 - 8 + 2075 + 20 - 8
3×(5)^2 - 4×2 + 2×2×53×25 - 8 + 2075 + 20 - 8 95-8
3×(5)^2 - 4×2 + 2×2×53×25 - 8 + 2075 + 20 - 8 95-887
What is an equation of the line that passes through the point (6,−4) and is perpendicular to the line 2x−y=5?
Answers
Answer:
An equation of the line that passes through the point (6,−4) and is perpendicular to the line will be:
[tex]y=-\frac{1}{2}x-1[/tex]Step-by-step explanation:
We know that the slope-intercept form of the line equation
y = mx+b
where m is the slope and b is the y-intercept
Given the line
[tex]2x-y=5[/tex]
converting the line into slope-intercept form
y = 2x-5
comparing with the slope-intercept form of the line equation
The slope of the line = m = 2
We know that a line perpendicular to another line contains a slope that is the negative reciprocal of the slope of the other line, such as:
slope = m = 2
Thus, the equation of new line = – 1/m = -1/2 = -1/2
using the point-slope form of the line equation
[tex]y-y_1=m\left(x-x_1\right)[/tex]
where m is the slope of the line and (x₁, y₁) is the point
substituting the values of the slope = -1/2 and the point (6,−4)
[tex]y-\left(-4\right)=-\frac{1}{2}\left(x-6\right)[/tex]
[tex]y+4=-\frac{1}{2}\left(x-6\right)[/tex]
Subtract 4 from both sides
[tex]y+4-4=-\frac{1}{2}\left(x-6\right)-4[/tex]
[tex]y=-\frac{1}{2}x-1[/tex]
Therefore, an equation of the line that passes through the point (6,−4) and is perpendicular to the line will be:
[tex]y=-\frac{1}{2}x-1[/tex]An equation of the line that passes through the point (6,−4) and is perpendicular to the line 2x−y=5 is [tex]y=-\frac{1}{2}x-1[/tex]
Given:
An equation of the line that passes through the point (6,−4) and is perpendicular to the line 2x−y=5
First we find the slope of given equation 2x-y=5
y=mx+b is the equation of the line . where 'm' is the slope
[tex]2x-y=5\\2x-5=y\\y=2x-5[/tex]
Slope m=2.
Slope of perpendicular lines are negative reciprocal of one another
Slope of perpendicular line is [tex]-\frac{1}{2}[/tex]
The line passes through the point (6,-4)
Use the point and slope to get the equation of the perpendicular line
slope m = [tex]-\frac{1}{2}[/tex]
Point slope form of line is
[tex]y-y_1=m(x-x_1)\\y+4=-\frac{1}{2}(x-6)\\y+4=-\frac{1}{2}x+3\\y=-\frac{1}{2}x-1[/tex]
An equation of the line that passes through the point (6,−4) and is perpendicular to the line 2x−y=5 is [tex]y=-\frac{1}{2}x-1[/tex]
Learn more : brainly.com/question/19864665
find the slope of the given points (3,4) and (7,-4)
Answers
Answer:
m = -2Step-by-step explanation:
[tex]\bold{slope\, (m)=\dfrac{change\ in\ Y}{change\ in\ X}=\dfrac{y_2-y_1}{x_2-x_1}}[/tex]
(3, 4) ⇒ x₁ = 3, y₁ = 4
(7, -4) ⇒ x₂ = 7, y₂ = -4
So the slope:
[tex]\bold{m=\dfrac{-4-4}{7-3}=\dfrac{-8}4=-2}[/tex]
2 is the slope of the passing through points (3,4) and (7,-4).
What is Slope?The slope of a line is a number that describes both the direction and the steepness of the line.
Given that a line is passing through the points (3,4) and (7,-4).
Slope = ([tex]y_{2}[/tex] - [tex]y_{1}[/tex])/([tex]x_{2}[/tex] - [tex]x_{1}[/tex])
Therefore, slope = (-4-4)/(7-3) =-8/-4 = 2
Hence, 2 is the slope of the passing through points (3,4) and (7,-4).
For more references on Slope, click;
https://brainly.com/question/3605446
#SPJ2
Which statement is true about the polynomial 3j4k−2jk3+jk3−2j4k+jk3 after it has been fully simplified? It has 2 terms and a degree of 4. It has 2 terms and a degree of 5. It has 1 term and a degree of 4. It has 1 term and a degree of 5.
Answers
Answer:
Hence the simplified form has has 1 term and a degree of 4
Step-by-step explanation:
Given the expression
3j⁴k - 2jk³+jk³-2j⁴k+jk³
Collect like terms
= 3j⁴k-2j⁴k- 2jk³+jk³+jk³
= j⁴k- 2jk³+jk³+2jk³
= -j⁴k-2jk³+2jk³
= - jk⁴
Hence the simplified form has has 1 term and a degree of 4
Answer:
It has 1 term and a degree of 5.
Step-by-step explanation:
Find the measure of . (to the nearest tenth)
Answers
Answer:
Answer: A
Step-by-step explanation:
The cos(theta) = adjacent / hypotenuse
The cos(theta) = 4/5
cos(theta) = 0.8
theta = cos^-1 (0.8)
theta = 36.9
theta = A
A | 5 - 3 |
B | 3 - 5 |
C 5 - 3
D 3 -5
PLEASEE HELP THANK YOU!!!
Answers
Answer:
D. 3-5
Step-by-step explanation:
Absolute Value
[tex] |a| = a \\ | - a| = a[/tex]
Given where a-term is greater or equal to 0.
Example
[tex] |1| = 1 \\ | - 1| = 1 \\ | - 20| = 20[/tex]
Back to the question, we evaluate the absolute value of 3-5.
[tex] |3 - 5| \\ | - 2| [/tex]
Any negative real numbers in absolute will become positive real numbers.
Therefore, our answer is —
[tex]2[/tex]
Consider all choices.
[tex] |5 - 3| = |2| = 2 \\ |3 - 5| = | - 2| = 2 \\ 5 - 3 = 2 \\ 3 - 5 = - 2[/tex]
The only answer that is different is the last choice, 3-5 = -2
-4(2m + 2n) + 2(3m-2n)
Answers
Answer:
-2m -12n
Step-by-step explanation:
-8m -8n +6m-4n
Step-by-step explanation:
= -8m-8n+6m-4n
= -8m+6m-8n-4n
= -2m-12n
hope it helps.
pls help me on this.
Answers
10+2x+6=24
-2x. -2x
10+6=-2x+24
-24. -24
10+6-24=-2x
simplify
-8=-2x
divide both sides by -2
4=x
2. x=7
14+3x+5=40
-3x. -3x
14+5=40-3x
-40. -40
14+5-40=-3x
-21=-3x
divide both side by -3
7=x
HELPPPP...When you have a division problem like the one listed below... What do you do with the exponents?
Answers
P^12-2t^7-7r^2-1
p^10r
you just substracting
what is the x intercept of x+ 7y = 35
Answers
A model rocket is launched from ground level. Its height, h meters above the ground, is a function of time t seconds after launch and is given by the equation . What would be the maximum height, to the nearest meter, attained by the model? (First find the axis of symmetry x= (-b/2a), then plug this value into the equation)
Answers
Answer:
The maximum height attained by the rocket is 240.1 m.
Step-by-step explanation:
The height above the ground is a function of time t is given by :
[tex]h= -4.9t^2 + 68.6t[/tex] ...(1)
We need to find the maximum height of the model. First we find the time of max height using axis of symmetry of the equation as follows :
[tex]x=\dfrac{-b}{2a}[/tex]
We have, a = -4.9 and b = 68.6
So,
[tex]t=\dfrac{-(68.6)}{2\times -4.9}\\\\=7\ s[/tex]
Put t = 7 in equation (1)
[tex]h= -4.9(7)^2 + 68.6(7)\\\\=240.1\ m[/tex]
So, the maximum height attained by the rocket is 240.1 m.
.
WILL GIVE 100 POINTS AFTER YOU ANSWER
What kind of culture emerged in Cordoba after centuries of Muslim rule?
1.a strictly Muslim culture, far removed from anything Europe would recognize
2.a colorful fusion of Arab and Christian customs, art, and religious practices
3.a culture similar to Byzantine ways of life, but focused on Muslim beliefs
4.a mostly austere and simple culture, similar to life in the rest of Europe
Answers
Answer: 2. a colorful fusion of Arab and Christian customs, art, and religious practices.
Step-by-step explanation:
My history teacher mentioned this in class.
marking brainliest to whoever can help and explain
Answers
Answer: I hope I got it right. You can mark brainliest if you want. I don't really care.
Step-by-step explanation:
Well, it seems that for every week, Pragitha swims x + 2 laps. So if she swims x + 2 laps twice, she will get 2x + 4. So x is equal to 4. You add that four and you get three x. So for one week, she swims x + 2 laps and for the second lap, she swims 2x + 4. Which according to the table, is equal to 3x. So for 3 weeks, she clearly swims less, because maybe she's tired or something. So it's 2x+1. And for week 4, it's week one and week 2 combined.
The expression on the other hand is
10x + 9
"Leo and Stan start to ride their bikes at the same time from the same point on a
circular track. If it takes Leo 36 seconds to complete on revolution around the
track and it takes Stan 40 seconds to make one revolution around the track, how
many minutes will it take for them to meet again at the starting point?
I need help?
Answers
Answer:
6 minutes
Step-by-step explanation:
Given
Leo = 36 sec / rev
Stan = 40 sec/rev
Required
Determine the time (in minutes) they'll meet again
We start by getting the multiples of 36 and 40 uptil we get a common multiple.
Leo: 36 = 36, 72, 108, 144, 180, 216, 252, 288, 324, 360, .....
Stan: 40 = 40, 80, 120, 160, 200, 240, 280, 320, 360....
From above, the common multiple is:
Common Multiple = 360
This means that they'll meet at 360 seconds
Convert to minutes
360 sec = 360/60 mins
360 Seca = 6 mins
Hence,it will take them 6 minutes to meet again at the starting point
rally car race course covers 515.97 miles. The winning car completed the course in 6.5 hours. What was the average speed of the winning car?
Answers
Answer: 79.38
Step-by-step explanation: