Answer:
9x³-9x²+2x
Step-by-step explanation:
Let the expression be given as
(2-3x)(x-3x²)
Expand
= 2(x)-2(3x²)-3x(x)-3x(-3x²)
= 2x - 6x² -3x²+9x³
Rearrange
= 9x³-6x²-3x²+2x
= 9x³-9x²+2x
Hence the simplified form of the expression is 9x³-9x²+2x
please help me asap.
Answer:
21
Step-by-step explanation:
Yes I am here to help
Find the Slope-intercept equation of the line which passes through (3, -4) and (-3, 8).
Answer:
y = -2x + 2
Step-by-step explanation:
8 + 4/ -6
= -2
y = -2x + b
8 = -2(-3) + b
8 = 6 + b
2 = b
check work
-4 = -2(3) + 2
-4 = -6 + 2
-4 = -4
it is correct
Please help!!!
I will mark you brainliest for the correct answer.
Please!!!!
Answer:
60°
Step-by-step explanation:
A straight line is 180°
<5 is 120°
180°-120°=60°
Jack is building a square garden. Each side length measures 777 meters. Jack multiplies 7\times77×77, times, 7 to find the amount of space in his garden is equal to 494949 square meters. Which measurement does 494949 square meters represent? Choose 1 answer: Choose 1 answer: (Choice A) A Area (Choice B, Checked) B Perimeter (Choice C) C Length Stuck?Use a hint.
Answer:
The answer is choice A that is "Area".
Step-by-step explanation:
According to the area of the square [tex](A)= side^2[/tex]
Given side =7
So, the area= [tex]7^2= 7 \times 7=49[/tex]
Can I have some help please
Answer:
I think it's trapezium .
1.6 × 10^6 ÷ 4.8 × 10^5. Give your answer as a mixed number
Answer:
(10^11)/3
10^6 x 10^5 = 10^11
8/5 x 5/24 = 1/3
so multiply 10^11 and 1/3 together
Ian paints /8 of a fence. Anna paints 3/4 of another fence. Draw a number line to show that Ian and Anna have painted the same amount of each fence.
Answer:
See attachment for number line
Step-by-step explanation:
Given
[tex]Ian = \frac{6}{8}[/tex]
[tex]Anna = \frac{3}{4}[/tex]
Required
Number line to represent both amounts
The interval on the number line is 16.
So, we need to calculate the position of both as thus.
[tex]Ian = \frac{6}{8} * 16 = \frac{96}{8} = 12[/tex]
[tex]Anna = \frac{3}{4} * 16 = \frac{48}{4} = 12[/tex]
So, both will be positioned on the 12th position.
The yellow dot represents Anna while the blue dot represents Ian
See attachment for their position on the number line
20 feet. The builder asks him to give the measurements in yards. What will be the length in yards?Immersive Reader
Answer:
6.67 yards
Step-by-step explanation:
20 feet. The builder asks him to give the measurements in yards. What will be the length in yards?
Please note that:
1 foot = 0.333 yard
20 feet = x yards
Cross Multiply
1 foot × x yards = 20 feet × 0.333 yards
x yards = 20 feet × 0.333 yards/1 foot
x yards = 6.66667 yards
Approximately = 6.67 yards
Therefore, the measurements in yards is 6.67 yards.
Hey !! Can someone please help me with this??
Answer:
[tex]8^2[/tex] and 4 x 4 x 4
Step-by-step explanation:
4 to the third power, is the same as 4 x 4 x 4.
This is then equal to 64.
8 squared is also equal to 64, making it also an answer.
None of the other ones work.
Hope this helps and have a nice day!! :) :] :D
Tools
Question 11
The table shows the relationship between y, the cost to rent a boat, and the amount of time the boat is rented,
Boat Rental Costs
Time, X Cost, v
(hours) (dollars)
1
3
5
80
7
104
Which graph best represents the relationship between x and y shown in the table
what polygon is formed?
Answer:
Polygons are figures that are formed by three or more line segments. These line segments, even called sides, meet at their endpoints to form vertices. If we compare the number of sides, diagonals and triangles of a quadrilateral a pentagon and a hexagon we can find a system between the different polygons.
Step-by-step explanation:
Ryan has a 28 foot board. He needs to cut it into 24 equal length parts. How long should each section of the board be?
Answer:
1.17 feet
Step-by-step explanation:
28 ÷ 24 = 1.16666666667
round that and you get 1.17
IM MARKING BRAINLIEST
Valerie replaces one car alternator every 1.75 hours. She takes a 1-hour lunch break.
Which equation can be used to determine how many alternators she replaces in 8 hours?
Multiple choice question.
A)
1.75w−1=8
B)
1.75w+1=8
C)
18w−1=8
D)
18w+1=8
Answer:
A)
1.75w−1=8
Step-by-step explanation:
a.f(a)=22
b.f(a)=37
c.f(a)=32
d.f(a)=42
Answer:
with no question asked the answer could be anyone of the options
Step-by-step explanation:
I need to know the answer to the question
Answer:
X=4
Step-by-step explanation:
Answer and Step-by-step explanation:
To get x, we need to put everything on the right. We start off by multiplying each side by 3.
3 × [tex](\frac{7+2x}{3} ) =[/tex] 5 × 3
7 + 2x = 15
Now, we subtract 7 from each side.
(7 + 2x) - 7 = 15 - 7
2x = 8
Finally, we divide each side by 2.
2x ÷ 2 = 8 ÷ 2
x = 4
The answer to this equation is x = 4.
I hope this helps!
A thanks and 5 stars + brainliests are appreciated, but I help to help!
#teamtrees #PAW (Plant And Water)
. A soccer ball manufacturer claims the diameters of their ball have a standard deviation of 2 mm when properly inflated. Based on a random sample of 10 balls you find a standard deviation of 3.2 mm. Does the sample suggest the standard deviation is higher than that claimed by the manufacturer?
Answer:
Yes, there is significant evidence to support the claim that sample standard deviation is higher than that claimed by the manufacturer
Step-by-step explanation:
Sample standard deviation, s = 3.2
Population standard deviation, σ = 2
Defining the Null and alternative hypothesis :
H0 : σ = 2
H1 : σ > 2
The test statistic :
Use the Relation :.
[(n - 1)*s²] ÷ σ²
[(10 - 1) * 3.2²] ÷ 2²
(9 * 10.24) ÷ 4
92.16 ÷ 4
= 23.04
We obtain the Pvalue for the distribution :
Using the Pvalue from Chisquare distribution calculator :
Pvalue(Chisquare score, df)
df = n - 1 = 10 - 1 = 9
Pvalue(23.04, 9) = 0.006107
Decision :
If Pvalue is < α ; Reject H0 ; α = 0.05
0.006107 < 0.05 ; We reject H0
Tina's gross pay is $2860. How much of her gross pay will be deducted for FICA taxes? (The Social Security tax is 6.2% of gross pay. The Medicare tax is 1.45% of gross pay.)
$218.79
$205.02
$177.32
$41.47
Compare 6*10^5 and 3*10^4
Answer: 6*10^5 > 3*10^4
Step-by-step explanation:
6*10^5 = 600000
3*10^4 = 30000
Lin and Kal's ages add up to 41 Lin is 5 years older than Kal. Use the equation from the to find their ages.
Please help me! No it doesn’t give me the numbers or the volume. If you help I will mark Brainliest!
The volume = LBH = x²y
.°. If a pyramid and a prism have the same base and height, their volumes are always in the ratio of 1/3xVolume of prism.
The volume of Pyramid = 1/3*x²y
h = 3 *1/3x²y/x²
h = 3*1/3x²y*1/x²
h = 3*1/3y
h= y-3(d + -2) + -4 = 5
solve for d
Answer:
d=−1
Step-by-step explanation:
−3(d−2)−4=5
Step 1: Simplify both sides of the equation.
−3(d−2)−4=5
(−3)(d)+(−3)(−2)+−4=5(Distribute)
−3d+6+−4=5
(−3d)+(6+−4)=5(Combine Like Terms)
−3d+2=5
−3d+2=5
Step 2: Subtract 2 from both sides.
−3d+2−2=5−2
−3d=3
Step 3: Divide both sides by -3.
−3d
−3
=
3
−3
d=−1
[tex]-3(d+(-2))+(-4)=5[/tex]
[tex]-3d-6+(-4)=5\\-3d-10=-5\\-3d=5\\3d=-5\\d=-\frac{5}{3}[/tex]
If x=2,find the value of x²+1/x²
Answer:
17/4 or 4 1/4
Step-by-step explanation:
Substitute x = 2 into the expression x² + 1/x².
(2)² + 1/(2)²Evaluate the exponents in the expression.
(4) + 1/(4) 4 + 1/4Multiply 4 by 4/4 to get a common denominator of 4.
16/4 + 1/4Add the numerators together.
17/4The value of x² + 1/x² if x = 2 is 17/4, or 4 1/4.
PLEASE HELP ME PLEASE PLEASE PLEASE
Answer:
Step-by-step explanation:
l/100 km means liters per 100 Kilometre. How many liters a car need for traveling 100 km.
Km/l means liter per km
A ball is dropped from a height of 64 feet. Its height, in feet, can be modeled by the function h(t) = -16t2 + 64, where t is the time in seconds since the ball was dropped. A. After how many seconds will the ball hit the ground? B. What is a reasonable domain and range for this function?
Answer:
See solution below
Step-by-step explanation:
The ball will hit the ground at whrn t = 0
Given the height of the ball modeled by the expression
h(t) = -16t^2 + 64
0 = -16t^2 + 64
16t^2 = 64
t^2 = 64/16
t^2 = 4
t = 2sec
The ball will hit the ground 2secs after
The domain are the values of the input values t and this values start from 2 and greater. Hence the domain of the function is {2, ∞}
when t = 2
h (2) = -16(2)^2 + 64
h(2) = -64+64
h(2) = 0
Hence the range are the output values i.e the height.
The range are within the range {0, ∞}
help ASAP please! ill mark u brainliest
Answer:
box and whisker
Step-by-step explanation:
help me plz: An employer is paying an employee a salary of $35,500 a year. The employer promised to increase his/her salary by 2,750 per year. What will be the employee's salary by year 8?
Answer:
401(k) plan
Step-by-step explanation:
The employee earns $45/hour, with his employer paying 1.5 times the regular rate of pay for overtime hours. To date, he has earned $130,050 during the present year. He has requested that his employer withhold 8% of gross pay, which is to be contributed to a 401(k) plan. Taxable income for federal income tax withholding = $
PLEASE HELP!!
Question 1 of 5
Solve the following equation for x using a table of values (nearest fourth of a unit), graphing technology, and successive
approximation (three iterations). The solution lies between x = -2 and x = -1.
x + 3 = 2 (- x - 1)
Select the correct order that shows the least accurate to most accurate method of approximation.
Lowest Accuracy: Table of values: x= -1.5
Intermediate Accuracy: Successive approximations: x-1.5625
Highest Accuracy: Graphing technology: x-1.543
O
Lowest Accuracy: Table of values: X~ -1.5
Intermediate Accuracy: Graphing technology: x -1.543
Highest Accuracy: Successive approximations: x-1.5625
O
Lowest Accuracy: Successive approximations: x= -1.5625
Intermediate Accuracy: Table of values: x-1.5
Highest Accuracy: Graphing technology: x -1.543
o
Lowest Accuracy: Graphing technology: x-1.543
Intermediate Accuracy: Successive approximations: x= -1.5625
Highest Accuracy: Table of values: x-1.5
Answer:
lowest accuracy: Table of values:x=-1.5
intermediate accuracy: successive approximate: x=-1.5625
Highest accuracy: Graphing technology: x=1.543
Step-by-step explanation:
i just did this question
Someone Please Help Me!
9514 1404 393
Answer:
discrete
Step-by-step explanation:
"The number of (anything)" means the possible values are counting numbers. The random variable involved is necessarily discrete.
does the volume method length x width x height apply to all volume finding questions
Answer:
No.
Step-by-step explanation:
This only applies to solids like cubes and some prisms.
It does not apply to such solids are cylinders, pyramids, cones and triangular prisms. It will apply to a prism whose cross-section is a rectangle.
78 is 65% of what number (can someone explain how to solve this?)
Answer:
120
Step-by-step explanation:
78 is 65% of what number.
Let's break down this expression.
In this case "is" means "equals" so we will use the equal sign (=)
65% can be written as 0.65 or 65/100
"of" indicates multiplication
"what number" will be represented by x.
Now, put this all together.
78 = 0.65 • x
To solve for x, divide both sides by 0.65
120 = x
This is your answer.
Check this by finding 65% of 120.
0.65 • 120 = 78
Your answer is correct.
Hope this helps!
