Answer:
$145
Step-by-step explanation:
10×12=120+25=145
Find all real solutions and show work:
2x^3-3x^2+18x-27=0
Given:
The given equation is
[tex]2x^3-3x^2+18x-27=0[/tex]
To find:
All the real solutions.
Solution:
We have,
[tex]2x^3-3x^2+18x-27=0[/tex]
It can be written as
[tex]x^2(2x-3)+9(2x-3)=0[/tex]
[tex](2x-3)(x^2+9)=0[/tex]
Using zero product property, we get
[tex](2x-3)=0[/tex] and [tex](x^2+9)=0[/tex]
[tex]2x=3[/tex] and [tex]x^2=-9[/tex]
[tex]x=\dfrac{3}{2}[/tex] and [tex]x=\pm\sqrt{-9}[/tex]
We know that [tex]x=\pm\sqrt{-9}[/tex] is an imaginary number because there is a negative sign under the square root.
Therefore, [tex]x=\dfrac{3}{2}[/tex] is the only real solution of the given equation.
Can someone help me
Step-by-step explanation:
the answer is B. lines 1 and 3 are perpendicular
Mr. Robins earns a commission on each airfare he books. At the end of the day, he had booked $208.60 worth of airfare and earned $31.29. What is Mr. Robins’ commission rate (percent)?
ALGEBRICAL EXPRESSIONS
SIMPLIFY
(7x+8y)² - (7x-8y)²
Step-by-step explanation:
hope it helps you
mark me as brainliest
Help me out here please, answer in a paper, send picture, thanks.
Collins has a part-time job as a dog walker. The table below shows the amount of money Collins earned for different numbers of hours of work:
Collins' Earnings from Dog Walking
Number of Hours Worked Money Earned (dollars)
5 30
6 36
8
66
Part A: What are the missing numbers in the table? Show your work. (4 points)
Part B: Collins also does part-time yard work. The ratio of the number of hours Collins works to the money he earns in dollars is 1:7. Create a table to show the money earned by Collins for 5, 6, and 8 hours of doing yard work. (3 points)
Part C: How many more dollars does Collins earn doing yard work for 5 hours than working as a dog walker for 5 hours? Show your work. (3 points)
Answer:
See below.
Step-by-step explanation:
Part A:
For Dog walking, he earns $30 for 5 hours of work.
He earns $36 for 6 hours of work.
$30/5 hours = $6/hour
$36/6 hours = $6/hour
He earns $6/hour dog walking.
For 8 hours, he earns 8 hours * $6/hour = $48
To earn $66, he works 66/6 = 11 hours.
5 30
6 36
8 48
11 66
Part B:
He earns $7/hour for yard work, so multiply the number of hours by 7 to find the money he earns.
Table for yard work
Hours Money
5 $35
6 $42
8 $56
Part C:
For 5 hours, he earns $35 for yard work and $30 as a dog walker.
$35 - $30 = $5
Does this table represent a function? Why or why not?
Answer:
NO. B is the answer
Step-by-step explanation:
because there are two of the same x values, causing there to not form a straight line.
Hope this helped! Have a nice day! Plz mark as brainliest!!! :D
-XxDeathshotxX
Cecilia is saving money to buy a bicycle. She started with $75 and saves $10 each week from her allowance. Which equation represents how much money, y, Cecilia has at the end of x weeks? O A. y = 75x + 10 o B. y = 10x + 75 O C. x = 75y + 10 O D. X = 10y + 75
Answer:
y = 10x + 75 If not then
X = 10y + 75
3x²-.75=90
I need help finding the value of x
(90 points)
Answer:
x=5.5, -5.5
you can use a calculator too
what is the volume of this container. also i need this quick ok?
WRITE AN EQUATION RHAT DESCRIBES THE PATTERN SHOWN IN THE TABLE!! Please help!!! HURRY PLEASE TYSM
Answer:
he depends on the 12th week because he ran more miles
Step-by-step explanation:
8<10<13<17
Vhat is the mean absolute deviation of this data set? {2, 2, 4,4}
The distance from Earth to Pluto is about 5,750,000,000 km. How many light-years is this?
Answer:
The average distance between Earth and Pluto is same as average distance of Pluto from the Sun. This is 0.000628 light years, nearly.
Explanation:
The average distance obetween two planets is nearly the average distance of the outer planet from the Sun. Earth is inner to Pluto. Average Sun-Pluto distance = 5906.4 million km. Divide by 149597870 to get distance in Au. Further divide by 62900 to get distance in ly.
Find the area of this triangle. Round to the nearest tenth. 9.5 yd 23 yd
Please help!
Answer:
[tex]Area=\frac{ab}{2} \\\\area=\frac{9.5.23}{2} \\\\answer=108.8 yd^{2}[/tex]
Step-by-step explanation:
I hope this helps ^_^
The area of the triangle is 108.7 square yards.
What is the area of the triangle?Let a, b, and c is the sides of the triangle.
The area of the triangle is given as
S = (a + b + c) / 2
[tex]\rm A = \sqrt{s(s - a)(s - b)(s -c )}[/tex]
The third side of the triangle will be
c² = a² + b² - 2ab cos θ
c² = 9.5² + 23² - 2 × 9.5 × 23 × cos 85°
c² = 619.25 - 38.09
c² = 581.16
c = 24.11 yd
Then the area of the triangle will be
S = (9.5 + 23 + 24.11) / 2
S = 56.61 / 2
S = 28.3
Then the area will be
[tex]\rm A = \sqrt{28.3(28.3 - 24.11)(28.3 - 23)(28.3 - 9.5)}[/tex]
Simplify the expression, then the value will be
A = √11815.01
A = 108.7 square yd
The area of the triangle is 108.7 square yards.
More about the area of the triangle link is given below.
https://brainly.com/question/19305981
#SPJ2
Rachel has been offered full-time sales positions at two different furniture stores. The first store will pay her a weekly salary of $250 plus a commission of 12% of her sales. The second store will pay her a weekly salary of $475 plus an 8% commission. If x represents Rachel’s weekly sales (in dollars) and y represents her total earnings (in dollars), which system of equations describes the problem situation?
A.
{
y
=
0
.
12
x
y
=
0
.
8
x
B.
{
y
=
250
+
12
x
y
=
475
+
8
x
C.
{
y
=
250
x
+
12
y
=
475
x
+
8
D.
{
y
=
250
+
0
.
12
x
y
=
475
+
0
.
08
x
Answer:
Number A.
Step-by-step explanation:
i just did this one lol
The system of equations that describes the problem situation is y=250+0.12x and y=475+0.08x. The correct option is D.
What are Percentages?A percentage is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25 which is equal to 25%.
To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.
Given that The first store will pay her a weekly salary of $250 plus a commission of 12% of her sales. Therefore, the equation can be written as,
Total earning = Weekly salary + 12% of weekly sales
y = 250 + 0.12x
Also, The second store will pay her a weekly salary of $475 plus an 8% commission. Therefore, the equation can be written as,
Total earning = Weekly salary + 8% of weekly sales
y = 475 + 0.08x
Hence, the system of equations that describes the problem situation is y=250+0.12x and y=475+0.08x.
Learn more about Percentages here:
https://brainly.com/question/6972121
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Solve the following expression when
t = 6 and d = 8
t + d = 8 - 6
Answer:
Hi! Your answer is 14 = 2
Step-by-step explanation:
Evaluate
Suppose you dilate a square with a length and width of 12 by a scale factor of 1. What is
the width of the new image?
Answer:
12Step-by-step explanation:
Given the length and width of a square to be 12
If the of the square is dilated by a factor of 1, this means that the value will be multiplied by 1 as shown;
New width = Old width * 1
New Width = 12 * 1
New width = 12
Hence the width of the new image will also be 12
Jane goes to an amusement park with her friends. The admission fee to the amusement park is $8 and each ride costs $2. If Kelly has only $32 to spend how many rides can she go on?
Answer:
She can ride 12 rides i think if not let me know!
Step-by-step explanation:
32 - 8 then 24 divided by 2
Plss help !!!!!!!!!!!!!!!!
Answer: C (324)
Step-by-step explanation:
He is making $54 a day working 6 hours a day. 54 x 6 = 324 meaning in 6 days he would make $324.
Answer:
C. 324 thats the answer my cousin solved this
What is the solution to 0.4x−4<2.4 ?
Help!
if the parallelogram below, z=?
Answer:
z = 124 degrees
Step-by-step explanation:
If it is a parallelogram, opposite angles are congruent. So, z = 124 degrees
Answer:
opposite angles are equal so z=124°
The area of a circle is 200.96 cm? What is the diameter of the circle? (Write only the
numeric answer no units)
Answer:
16 (well, more like 15.99)
Step-by-step explanation:
[tex] \sqrt{((200.96 \times 4) \div 3.14)} [/tex]
please help me i dont really understand these questions im giving out brainliest
Answer:
x = 63.5 degrees
Step-by-step explanation:
use sine:
sine = [tex]\frac{opposite}{hypotenuse}[/tex]
sine x = [tex]\frac{17}{19}[/tex]
sine x = 0.8947
sine-1 of 0.8947 = 63.4699
x = 63.4699
round to the nearest tenth:
x = 63.5
PLEASE ANWSER FOR ME FAST SHOW WORK PLS!!!
Answer:
The answer is A
Step-by-step explanation:
Start at 12 and add 6 every year:
12 + 6 = 18
18 + 6 = 24
24 + 6 = 30
30 + 6 = 36
I will give brainlits and start pls help
Graph the equation y = 3x - 3 using slope and y-intercept.
6
5
y
4
3
N
1
0
-1
-2
الفا
4
-5
-6
-5
-2
-4
-1
0 1
-3
2
5
2
6
3
á
?
y = 3x - 3
Step-by-step explanation:
(0,-3) and (1,0) this are the point
pls help will give brainliest!!
Answer:
a . 50
Step-by-step explanation:
L + 40 + 90 = 180
L + 130 = 180
L = 180 - 130
L=50
Hiiioo❤️ Can someone please help me with this
Answer:
23
I am like 80% sure that this is right
For the given right triangle, find the value x to the nearest tenth:
A bus travels one and one half miles to a bus stop 4 times. How many miles in all has the bus traveled?
Answer:
6 miles
Step-by-step explanation:
1.5miles multipled by 4stops is 6
Apply the Distributive Property to Simplify the Expression
3(36)
Answer:
108
Step-by-step explanation: