Answer:
44.53
Step-by-step explanation:
I'm smort
help pls am confused
Answer:
Given, x−x1=5
Squaring both the sides,
⇒(x−x1)2=52
⇒x2+x21−2(x)(x1)=25
⇒x2+x21=25+2
⇒x2+x21=27
Now,
x3−x31
=(x−x1)[(x)2+(x1)2+(x)(x1)]
=5(27+1)
=140
9514 1404 393
Answer:
322
Step-by-step explanation:
Consider the cube ...
(a +b)³ = a³ +3a²b +3ab² +b³
= a³ +b³ +3ab(a+b)
Now, for a=x and b=1/x, we have ...
(x +1/x)³ = x³ +1/x³ +3(x)(1/x)(x +1/x)
Using the known value for x+1/x, this is ...
7³ = x³ +1/x³ +3(7)
x³ +1/x³ = 7³ -3·7 = 343 -21
x³ +1/x³ = 322
_____
If you want to try this with numbers, the solutions to the original equation are ...
x ≈ 6.85410196625 and its reciprocal.
HELP HELP HELP PLS Does it matter which way you subtract the values when you are finding the distance between two numbers on a number line .Give example to support your answer please answer in complete sentence please it's about to be due.
Answer:
Yes, it matters which way you subtract values because if you subtract a larger number from a smaller number you will get a negative nummber, but when you subtract the smaller number from the bigger number you get a positive number
ex: 5-6= -1 but 6-5=1
Step-by-step explanation:
PLEASE ANSWER AS SOON AS POSSIBLE
The cost of 4 peaches is $4.96. What is the constant of proportionality that relates the cost in dollars, y, to the number of peaches, x? Write the corresponding linear equation.
What is an equation of the line that passes through the point (-2, -3) and is
parallel to the line 4x - y = 12
Answer: y = 4x + 5
Step-by-step explanation:
Find the slope of the second line.
4x - y = 12
-y = -4x + 12
y = 4x - 12
slope = 4
Therefore, the slope of the second line must also be 4.
Use point-slope form to write the equation.
y + 3 = 4(x + 2)
y = 4x + 5
PLEASE HELP QUICKLY: (FIRST ANSWER GETS BRAINLIEST)
You are buying batteries, a stereo, and some CDs from the I.B. Electronics store. You can buy from this store online or in a physical store. You have a coupon for 10% off that can only be used in the physical store and a $5.00 off coupon that can only be used online. The sales tax of 5% only applies to the physical store. Shipping for the online store is a flat rate of $6.99. You are trying to decide whether to shop at the physical store or the online store. Using the pricing information below, how much would you pay at the physical store after all discounts, taxes, and shipping fees have been applied?
Item Quantity Physical Store Online Store
Batteries 2 packs $5.99/pack $4.99/pack
Stereo 1 system $100.00/system $90.00/system
CDs 3 CDs $7.95/CD $8.95/CD
$138.04
$118.42
$128.36
The Anwser is $128.32.
A retiree has $200,000 to invest and needs to make $13,000 with her investments. If she can invest in government bonds at 6% or investment grade bonds at 8%, how much should she invest in each?
Answer:
She should invest 150,000 in government bonds and 50,000 in investment grade bonds
Step-by-step explanation:
Let the amount invested in government bonds be $y while the amount invested in investment bond be $x
Since total is $200,000
Then:
x + y = 200,000 ••••••(i)
Since 13,000 is what is expected to be earned, then this is like the interest.
thus;
6% of x + 8% of y = 13,000
6x/100 + 8y/100 = 13,000
Multiply through by 100
6x + 8y = 1300000 •••••••(ii)
From i, x = 200,000 - y
insert this into ii
6(200,000-y) + 8y = 1300000
1200000-6y + 8y = 1300000
2y = 1300000-1200000
2y = 100,000
y = 100,000/2
y = 50,000
but x + y = 200,000
thus, x = 200,000 - 50,000
x = 150,000
Noah and Diego left the amusement park’s ticket booth at the same time. Each moved at a constant speed toward his favorite ride. After 8 seconds, Noah was 17 meters from the ticket booth, and Diego was 43 meters away from the ticket booth. 1.Which line represents the distance traveled by Noah, and which line represents the distance traveled by Diego? Label each line with one name.
Answer:
the blue line
Step-by-step explanation:
Answer:
Step-by-step explanation:himxbe
Help pls!!!!!!!!!!!!!!!
Answer:
(6,0) and (0,-12) straight line graph
Step-by-step explanation:
Write the phrase as an expression. Then simplify the expression.
7 plus the sum of a number 2 and 5
expression for the phrase:
simplified expression:
Answer:
7+2+5
7+7
7+7=14
-----------
Is the relation a function? And why
A)No
B)Yes
Evaluate a2-b for a = 8 and b = 17.
The value of the expression is
Answer:
-1
Step-by-step explanation:
Assumuning your asking what a2-b is.
8(2) - 17
-1
Answer:
-1
Step-by-step explanation:
If A= 8 and B= 17...
8(2)-17
16-17
-1
Which function represents g(x), a reflection of f(x) = 4(one-half) Superscript x across the x-axis?
Answer:
g(x) = -4(1/2x)^2
Step-by-step explanation:
If you could format this a little better, it would be helpful but here is what looks to be the answer to your question.
from the parent square function, there is a vertical stretch by a factor of 4, a horizontal stretch by a factor of 1/2, and a reflection across the x axis
Answer:
itd b on edg
Step-by-step explanation:
Identify a pair of alternate exterior angles.
a. 6 and 8
b. 2 and 7
c. 3 and 6
d. 3 and 2
A store purchases an item wholesale for $60 and marks it up by 70 percent. If there is a 7 percent tax on the item, how much will the item cost?
Answer:
$106.20
Step-by-step explanation:
60x70%=42
60x7%=4.2
60+46.2
Answer:
b
Step-by-step explanation:
As you walk to your car, you notice that your tire is nearly flat! The initial psi level yesterday was 40 but it is now only 38 today. If this trend continues and the tire keeps losing the same percentage of air, how much should be left at the end of the week rounded to 1 decimal? (7 days later)
Answer:
Step-by-step explanation:
Given that:
Initial psi yesterday = 40 psi
psi today = 38 psi
If trend continues and tire loses the same percentage of air. How much air will be left in tire at the end of the week
1 week ( 7days)
Total loss after 7 days = (amount lost per day * number of days)
Total psi lost per day= [(40 - 38) = 2
% psi lost = (2/40) * 100
= 5%
Applying the exponential loss functin:
A = I ( 1 - r)^t
t = 7days ; r = 5% = 0.05 ; A = amount left ; I = Initial amount
A = 40(1 - 0.05)^7
A = 40(0.95)^7
A = 40 * 0.69833729609375
A = 27.933
A = 27.9 psi
write an equation for a line perpendicular to y=5x+2 and passing through the point (-10,3)
Step-by-step explanation:
The perpendicular line *always* has a slope of the negative reciprocal. Your given line has a slope of -5, so the perpendicular slope is -1/(-5) = 1/5.
Use the point-slope form of a general line to find the equation.
(y - y_1) = m * (x - x_1)
y - 7 = (1/5) * (x - 15)
This graph shows a proportional relationship between the number of tulips and the number of daffodils in gardens planned by the Lindy Landscaping Company.
Lindy Landscaping Gardens
A line graph titled Lindy Landscaping Gardens has tulips on the x-axis, and Daffodils on the y-axis. There is 1 tulip for every 2 daffodils.
What is the constant of proportionality?
0.2
0.5
2
5
Answer: 2
Step-by-step explanation: I saw the answer somewhere else. Just wanted to tell you. I got it right on the test I think I was doing.
Answer:
2
Step-by-step explanation:
Which of them is correct? I'm like, slow right now.
Answer:
c
Step-by-step explanation:
.
.
.
.
.
.
.
.
................
Answer:
its the one you have clicked in the pic E
Step-by-step explanation:
. The psychology club is having a self-proclaimed psychic come to their campus fund-raising event to demonstrate his abilities. He charges $200 for these events, and the club is charging $1.50 for tickets with a chance to have the psychic read the ticket holder’s mind.
How much would the club gain or lose by selling 125 tickets?
and will The club will gain or lose?
Answer:
the club looses 12.50$
Step-by-step explanation:
125 tickets * 1.50$ per ticket
125 * 1.50 = 187.5 earned
200$ fee for psychic - 187.5$ earned
200 - 187.5 = 12.5
the club will lose 12.50$
(this psychic seems like a bit of a scam lol)
Evaluate the following algebraic expression for the given value of the variable
Answer:
[tex]\boxed{8}[/tex]
Step-by-step explanation:
-Solve the following expression when [tex]x = 4[/tex]:
[tex]\frac{5x + 12}{4}[/tex]
-Apply the value of [tex]x[/tex] onto the equation:
[tex]\frac{5x + 12}{4}[/tex]
[tex]\frac{5(4)+ 12}{4}[/tex]
-Multiply both the [tex]5[/tex] and [tex]4[/tex]:
[tex]\frac{5(4)+ 12}{4}[/tex]
[tex]\frac{20+ 12}{4}[/tex]
-Add both [tex]20[/tex] and [tex]12[/tex]:
[tex]\frac{20+ 12}{4}[/tex]
[tex]\frac{32}{4}[/tex]
-Divide [tex]32[/tex] by [tex]4[/tex]:
[tex]\frac{32}{4}[/tex]
[tex]\boxed{8}[/tex]
So, therefore, the final answer is [tex]8[/tex].
Answer:
Step-by-step explanation:
My answer is 8!!!
If x is equal to 4 then 5x4=20 because if there is no sign then that means that you have to multiply, then you add 20 and 12 which is equal to 32, And then you simplify 4 which equals 8, or you can think of dividing 32 and 4 which is also 8.
One bag of potato chips costs $3. Five bags of potato chips costs $10. Which has the lower unit cost?
Answer:
5 bags for 10$
Step-by-step explanation:
Please answer correctly !!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!
Answer:
1) B
2) A
Step-by-step explanation:
B because we use pemdes and for 2 they answers are both equivalent
Answer:
1) B. Add/subtract the same quantity to/from both sides
2) Yes
Step-by-step explanation:
To answer Part B, we have to answer to equation.
Step 1- Add x to both sides of the equation.
4x+2= 6-x
+x +x
5x+2= 6
Step 2- Subtract 2 to both sides of the equation.
5x+2= 6
-2 -2
5x= 4
Step 3- Divide 5 to both sides of the equation.
5x= 4
5 5
This gives us 4/5 or 0.80.
So, the answer is yes to Part B.
Hope this helps!
a lab uses negative numbers to describe a car moving backward on a road if the car was at -75.5 feet ,went forward 23 feet and then forward again 14.5 feet where is the car now
Use the distributive property to write an equivalent expression.
8(4t + 9)
Answer:
32t+72
Step-by-step explanation:
You start at (0, -2). You move down 3 units. Where do you end?
Answer:
(0, -5)
Step-by-step explanation:
When you move down you subtract the amount from the y-axis.
The temperature in Miami, Florida is 22 degrees warmer than three times the temperature in Bangor, Maine. The temperature in Miami is 82 degrees. Write an equation to determine the temperature in Bangor. NEEED HELP PLZ :(
A 3x + 82 = 22
B 3x + 22 = 82
C 3x − 22 = 82
D 3x − 82 = 22
Answer:
I think option 2 is correct
3x+22=82
Hope u like it
2. What is the solution to this equation?
2 x + 3 = x - 4
Answer: x=-7
Step-by-step explanation:
2x-x=-4-3
Collect terms
X=-4-3
Answer is x=-7
Perform the indicated operation.
(-7) · (-5)
-12
-35
12
35
The empty gas tank of a motor boat is to be filled. The tank is shaped like a rectangular prism with length 32cm, width 28cm, and height 15cm. Suppose gas is pumped into the tank at a rate of 840cm3 per minute. How many minutes does it take to fill the empty tank?
Write all prime numbers between 15 and 20
Answer:
17 and 19
Step-by-step explanation:
Answer:
17, 19
Step-by-step explanation:
15 is composite (5, 3) (15, 1)
16 is composite (8, 2) (4, 4) (16, 1)
17 is prime (17, 1)
18 is composite (9, 2) (6, 3) (18, 1)
19 is prime (19, 1)
20 is composite (2, 10) (4, 5) (20, 1)