Answer:
1) 2x cube - 3x square + 9x
2) 4z to the power of 6 + z to the power of 5 - 11z to the power of 4 - 6z square
3) 9a to the power of 7 - 5a to the power of 6- 13a to the power of 5
Brian spends 1/4 of his wages on rent and 1/3
on food. If he makes £480 per week, how much money does he have left?
Answer:
200
Step-by-step explanation:
Please Help!!
f(x) = square root of x plus 7 ; g(x) = 8x -11
Find f(g(x))
I'm not sure if you mean ( [tex] \sqrt{x + 7} [/tex] ) or ( [tex] \sqrt{x} + 7[/tex] ) I solved it both ways .
[tex]f(x) = \sqrt{x + 7} \\ \\ f( \: g(x) \: ) = \sqrt{(8x - 11)+ 7} \\ = \sqrt{8x - 11 + 7} \\ = \sqrt{8x - 4} \\ = 2 \sqrt{2x - 1} [/tex]
____o_____o______
[tex]f(x) = \sqrt{x} + 7 \\ \\ f( \: g(x) \: ) = \sqrt{(8x - 11)} + 7 \\ = \sqrt{8x - 11} + 7\\ [/tex]
I hope I helped you^_^
“reflection across y= -1” HELP
Answer:
the orange line is the reflection y=-1
To plot the reflection of a function across the line y = -1, you'll need to follow these steps:Understand Reflection Across a Line: Reflection across a line involves flipping the points of the original function over the given line.
For reflection across the line y = -1, you'll be swapping the positions of the points above the line with those below it.
Choose a Function: Let's say you want to plot the reflection of a function f(x) across y = -1. Choose a function that you want to reflect. For demonstration purposes, let's consider a simple quadratic function, [tex]f(x) = x^2.[/tex]
Calculate the Reflected Points: To calculate the reflected points, follow these steps for each point (x, y) on the original function:
a. Find the vertical distance between the point and the reflection line (y = -1). This distance is the difference between the original y-coordinate and -1: distance = y - (-1) = y + 1.
b. The reflected y-coordinate (y') will be -1 minus the distance calculated in the previous step: y' = -1 - distance = -1 - (y + 1) = -2 - y.
c. The x-coordinate remains the same: x' = x.
d. The reflected point is (x', y').
Plot the Reflected Points: Plot the original function f(x) and then plot the reflected points (x', y') that you calculated in the previous step. This will show you the reflection of the function across y = -1.
To know more about reflection:
https://brainly.com/question/15487308
#SPJ3
Which number is a counting number? Can you do both of them plz
At the grocery store a Sprite costs $0.85, a 6 pack of Sprite is $4.08, and a 12 pack of Sprite is $8.52. Which is the better buy.
Answer:
it's better to buy the six pack
Step-by-step explanation:
4.08/6 is 0.68
8.52/12 is 0.71
making the 6 pack the better deal
2+4(7+2²)
--------------
4×2+5×3
Answer:
[tex] \frac{46}{23} [/tex]
Step-by-step explanation:
[tex] \frac{2 + 4(7 + {2}^{2} )}{4 \times 2 + 5 \times 3} [/tex]
[tex] \frac{2 + 4(7 + 4)}{4 \times 2 + 5 \times 3} = \frac{2 + 4(7 + 4)}{8 + 5 \times 3} [/tex]
[tex] \frac{2 + 4(7 + 4)}{8 + 15} = \frac{2 + 4 \times 11}{8 + 15} [/tex]
[tex] \frac{2 + 4 \times 11}{23} = \frac{2 + 44}{23} [/tex]
[tex] = \frac{46}{23} [/tex]
Answer:
2+4(7+2)^2/4×2+5×3= 46/23
solve for x
the area if the triangle is 50 and the one angle is 61, what is x
6
Step-by-step explanation: that’s math
How do I solve 4/9x - 10 > x/3 - 12 word for word steps?
the answer is in the photo
Find the distance between the points (0,-5) and (6,-3)
Answer:
up 11 and left 2
Step-by-step explanation:
Answer:
x1=0 x2=6 y1 =-5 y3=-3
Distance^2 = Square Root [(x2 - x1)^2 + (Y2 -Y1)^2]
Distance^2 = Square Root [(6 -0)^2 + (-3 --5)^2]
Distance^2 = Square Root [6^2 + 2^2]
Distance^2 = Square Root [36 + 4]
Distance = 6.3245553203
To check the answer go here: https://www.1728.org/distance.htm
Step-by-step explanation:
Find the slope of the line passing through the points (-8,-3) and (-3,4).
Answer:
2.333333
Step-by-step explanation:
Answer:
[tex]slope = \frac{y2 - y1}{x2 - x1} \\ = \frac{4 - - 3}{ - 3 - - 8} \\ = \frac{4 + 3}{ - 3 + 8} \\ = \frac{7}{5} = 1.4 \\ thank \: you[/tex]
When working with integers, when do you add?
Answer: Ello mate, this image I provided below should help you out, let me know if you need anything else.
Step-by-step explanation:
the set of integers greater than -2 and less than 4 (need answer asap)
NEED HELP ASAP!!!!
Anna has a bag that contains orange chews, apple chews, and peach chews. She
performs an experiment. Anna randomly removes a chew from the bag, records the
result, and returns the chew to the bag. Anna performs the experiment 41 times. The
results are shown below:
A orange chew was selected 7 times.
A apple chew was selected 22 times.
A peach chew was selected 12 times.
Based on these results, express the probability that the next chew Anna removes from
the bag will be a flavor other than orange as a fraction in simplest form.
Answer:
I think its P= 34/41. sorry
Answer:
34/41 yuuhhhh
Step-by-step explanation:
Refer to the attachment and answer these questions.
( 1 ). Find the first counting number 'x' in group n.
( 2 ). Find the sum S of all counting numbers in group n.
Please also show your work too so others and I can understand. Thanks in advance!
Answer:
[tex]\displaystyle \text{(1)}\\x=1+\sum_{k=1}^{n-1}2k\\\\\text{(2)}\\\displaystyle \frac{\displaystyle \sum_{k=1}^{n}2k\left(1+\displaystyle \sum_{k=1}^{n}2k \right)}{2}-\frac{\displaystyle \sum_{k=1}^{n-1}2k\left(1+\displaystyle \sum_{k=1}^{n-1}2k \right)}{2}[/tex]
Step-by-step explanation:
Notice that Group 1 starts with 1 and we keep counting up by 1.
Part 1:
The total number of numbers from Group 1 to Group [tex]n[/tex] can be found by:
[tex]\displaystyle \sum_{k=1}^{n}2k[/tex]
To find the first number in a certain group [tex]g[/tex], we'll find the total number of numbers from Group 1 to Group [tex]g-1[/tex], then add 1.
Here's why.
Let's say we want to find the first number of Group 3, which we can clearly see is 7. Take advantage of the fact that the sequence of numbers counts up by 1, starting from 1. We will use the formula above to to find the total number of numbers from Group 1 to Group 2, which is 6, then add 1 to achieve the number of 7.
Therefore, the first number in group [tex]n[/tex] must be:
[tex]\boxed{\displaystyle 1+\sum_{k=1}^{n-1}2k}[/tex]
Part 2:
Recall that the sum of the numbers from [tex]1[/tex] to positive integer [tex]n[/tex] inclusive is given by [tex]\displaystyle\frac{n(n+1)}{2}[/tex].
Therefore, if we find the total number of numbers from Group 1 to Group [tex]n[/tex], we can simply substitute that value into the formula above to find the total sum of the numbers from Group 1 to Group [tex]n[/tex].
To find the total sum of the numbers exclusively in Group [tex]n[/tex] simply subtract the sum of numbers from Group 1 to Group [tex]n-1[/tex].
Short example on how that works:
The sum of all numbers in Group 3 is equal to the sum of the numbers from Group 1 to Group 3 minus the sum of the numbers from Group 1 to Group 2.
We've already found the formula for the total number of numbers from Group 1 to Group [tex]n[/tex] in the previous part, so convert this concept into summation notation like such:
[tex]\boxed{\displaystyle \frac{\displaystyle \sum_{k=1}^{n}2k\left(1+\displaystyle \sum_{k=1}^{n}2k \right)}{2}-\frac{\displaystyle \sum_{k=1}^{n-1}2k\left(1+\displaystyle \sum_{k=1}^{n-1}2k \right)}{2}}[/tex]
Could someone help me?
(50 Points)
Answer:
.
Step-by-step explanation:
.............................
Help me thank y'all so much
Answer:
15 p - 3 is the answer....
HELP DUE IN 10 MINS!
Solve for x.
x + 1 / x + 5 = 7/6
Answer:
[tex]x = ( - 29)[/tex]
Step-by-step explanation:
[tex] \frac{x + 1}{x + 5} = \frac{7}{6} \\ use \: \: \: cross \: \: multipication \\ 7(x + 5) = 6(x + 1) \\ 7x + 35 = 6x + 6 \\ 7x - 6x = - 35 + 6 \\ x = - 29[/tex]
hope this helps you.
F(x)=2+4 hurry I need it know guys
Answer:
f(x) = 6
simple as me haha
Step-by-step explanation:
please give brainliest i need it
Errrrrrrrrrrrrrrrrr
Answer:
st and wx
Step-by-step explanation:
bc they are on oppostite sides
x is 5 years older than y.Z is 6 years older than x how old are each person if the sum of their ages is 31
Please help
Check answers
Answer:
Number 8 the answer is 120
Number 10 answer is 115
Step-by-step explanation:
8. 180-60=120
it's because the straight line is 180 then you just need to solve it use this
10. 180-65=115
the reason same like number 8
Hope this answer can help you to solve the math problems
What are the intercepts of the function? The x-intercepts are
Answer:
-1,0 and -11,0 because you already factored and solved.
An angle is 34º more than its compliment. What is the measure of the angle?
a. 649
b. 1240
c. 28°
d. 62°
What is an equation of the line that passes through the point (3,-1)(3,−1) and is parallel to the line 5x+3y=65x+3y=6?
Step-by-step explanation:
5x+3y = 6
5x = 6 - 3y
5x = 3(2-y)
5x/3 = 2 - y
y = 2 - (5x/3)
slope = x coefficient.
= - 5/3
Perpendicular slopes must be opposite reciprocals of each other: m1 * m2 = –1
new slope = 3/5
the equation formula
y = mx + b
m = new slope = 3/5
y = (3x/5) + b
From the point given (3 , -1 )
x = 3.
y = -1
-1 = (9/5) + b
b =( -5/5) - (9/5)
b = - 14 / 5
[tex]y = \frac{3}{5} x - \frac{14}{5} [/tex]
The sales tax for an item was 29.70 and it cost 330 before tax. Find the sales tax rate. Write your answer as a percentage
Given 1/f=1/v+1/u. make v the subject of the relation
Answer:
v = [tex]\frac{fu}{u-f}[/tex]
Step-by-step explanation:
Given
[tex]\frac{1}{f}[/tex] = [tex]\frac{1}{v}[/tex] + [tex]\frac{1}{u}[/tex]
Multiply through by fuv to clear the fractions
uv = fu + fv ( subtract fv from both sides )
uv - fv = fu ← factor out v from each term on the left side
v(u - f) = fu ← divide both sides by (u - f)
v = [tex]\frac{fu}{u-f}[/tex]
How do I change 5/11 to a decimal,please explain
Step-by-step explanation:
5/11 as a decimal is 0.45454545454545
Answer:
5/11 as a decimal is 0.45454545454545
Step-by-step explanation:
what did the boy candy say to the girl candy
Step-by-step explanation:
Ahh!! that question is complicated....
I didn't realize that candy had genders.
A, B and E are non-collinear O True O False
Answer:
it would be false
Step-by-step explanation:
How do you find the slope of (-2,-2) and (4,1) the line passing through the points