Answers
Answer:
[tex]-3x^2 * x = -3x^3\\y * y = y^2[/tex]
[tex](-3x^2y)(5xy^2 + xy)\\[/tex]
Use F.O.I.L, (First Outer Inner Last) to multiply. Start with -3x^y * 5xy^2
Start with similar terms
[tex]-3x^2 * 5x = -15x^3\\y * y^2 = y^3\\Therefore,\\-15x^3y^2[/tex]
Move onto the xy portion of the problem
[tex]-3x^2y(xy)\\[/tex]
Start with similar terms
[tex]-3x^2 * x = -3x^3\\y * y = y^2\\Therefore,\\-3x^3y^2[/tex]
Combine the two together
[tex]-15x^3y^3 - 3x^3y^2\\[/tex]
The answer is Option A
Answer:
44. (1) -15x³y³ - 3x³y²
Step-by-step explanation:
Question 44
-3x²y (5xy² + xy)(1) -15x³y³ - 3x³y²Related Questions
how to draw a model of 2 divided by 1/4
Answers
Answer: Answer below
Step-by-step explanation:
just draw 2 rectangles and draw 3 lines in each one to make 4 equal sections
What is h(-8) for h(x) = x²
2
-x² +7x?
Answers
Answer:
8
Step-by-step explanation:
Re-write the equation:
h(x) = x² * 2 - x² -7x
If X is equal to -8, then we can re-write the equation as:
h(-8) = (-8)² * 2 - (-8)² - 7(-8)
Following P.E.M.D.A.S. we must first solve for the exponents:
h(-8) = (64) * 2 - (64) - 7(-8)
Then we need to solve the multiplication.
h(-8) = (128) - (64) - (-56)
Now, we solve for the addition/subraction.
h(-8) = (128) - (120)
Lastly...
128 - 120 = 8
This means that if h(-8), then H = 8
I think?
Does anybody know this? I know what the radius is but when I calculated my answer doesn't match the options. Find the surface area of a sphere is the area of the great circle is 81pi in^2
Answers
[tex]\stackrel{\textit{area of the great circle}}{A=\pi r^2}\hspace{5em}81\pi =\pi r^2\implies \cfrac{81\pi }{\pi }=r^2\implies 81=r^2 \\\\\\ \sqrt{81}=r\implies 9=r \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{surface area of the sphere}}{SA=4\pi r^2}\hspace{5em}SA=4\pi (9)^2\implies SA=324\pi ~in^2[/tex]
Lamonte and Fwam own competing taxicab companies. Both cab companies charge a one-time pickup fee for every ride, as well as a charge for each mile traveled. The equation y=2.2x+2.5 represents what Lamonte's company charges. Fwam charges a $4 pickup fee and $2.80 per mile. Use the dropdown menu and answer-blank below to form a true statement.
Answers
The cab rate model for Fwam will be given as y=2.8x+4.
What is an equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
Here we have an equation model for Lamonte y=2.2x+2.5 here y is the total cost and x is the distance in miles.
So here Fwam charges a $4 pick up fee and $2.80 per mile. The equation model will be:-
y=2.8x+4.
Hence cab rate model for Fwam will be given as y=2.8x+4.
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Hugo lives in the northwest corner of Greene County, Lena lives 29 miles away in the southeast corner, and the office where they work is directly between them. On Monday, Hugo took the bus into work, taking a direct route at 32 miles per hour. Lena left at the same time, taking her car along a direct route at a speed of 36 miles per hour. The two coworkers arrive at the office at the same time. How long did the commute take? If necessary, round your answer to the nearest minute.
Answers
Using the relation between velocity, distance and time, it is found that the commute took 48 minutes.
What is the relation between velocity, distance and time?Velocity is distance divided by time, that is:
[tex]v = \frac{d}{t}[/tex]
For Lena, we have that d = 29, v = 36, hence the time in hours is given by:
[tex]t = \frac{d}{v} = \frac{29}{36} = 0.8056[/tex]
In minutes, the time is given by:
tM = 0.8056 x 60 = 48.
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g(t)=-3t +2 h(t)=t-4 find (g o h)t)
Answers
Answer:
3t-10
Step-by-step explanation:
g(h(t))=g(t-4)
=3(t-4)+2
=3t-12+2
=3t-10
Match the correct corresponding parts. Make sure your letters are in the correct order!!
SAT~GRE
Answers
Answer:
Step-by-step explanation:
Please help I will mark brainliest.
Answers
Answer: Can you take a more clear picture
Step-by-step explanation:
Which function has the smallest x-intercept value, if it exists? f(x) = 3x – 9 f(x) = x2
Answers
The quadratic function f(x) = x² has the smallest x-intercept value in comparison with the linear function f(x) = 3 · x - 9, which is located at x = 0.
How to determine the x-intercept of a polynomic function
x-intercept is the point of a function that goes through the x-axis. Quadratic functions have at most two x-intercepts and linear functions have always one x-intercept.
In both expressions those intercepts are found by solving expression for x when y is equal to zero. In this question we must determine the smallest x-intercept value from one of the two polynomic functions:
a) f(x) = 3 · x - 9
3 · x - 9 = 0
x = 3
b) f(x) = x²
x² = 0
x = 0
The quadratic function f(x) = x² has the smallest x-intercept value in comparison with the linear function f(x) = 3 · x - 9, which is located at x = 0.
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I need help asap please
Answers
Answer:
12.36
Step-by-step explanation:
the standard deviation is 12.36123 or 12.36 rounded.
#7 HELP ME IM STUCK ON THIS
Answers
Answer:
30 ft
Step-by-step explanation:
since they're both feet no conversion is needed
multiply the model to scale (5) to find actual
6 * 5 = 30
your answer is 30 ft.
hope this helps:)
Select all the correct answers.
Nick wants to know the height of the students in seventh grade. He randomly notes the heights of 5 students from each seventh-grade class. The mean and median heights of the students are 55 inches and 46 inches, respectively. Which predictions match Nick's data?
1About one-half of the students are more than 55 inches tall.
2On average, the students are 46 inches tall.
3On average, the students are 55 inches tall.
4About one-half of the students are more than 46 inches tall.
(there is more than one answer)
Answers
Answer:
Below in bold.
Step-by-step explanation:
The mean is 55 therefore, by definition:
On average the students are 55 inches tall.
The median is the middle ( or the average of 2 middle) value when the data is arranged in order.
So as the media is 46 inches about half are more than 46 ins tall.
Triangle r q s is cut by line segment t v. line segment t v goes from side q r to side r s. the length of r v is x 10, the length of v s is x, the length of r t is x 4, and the length of t q is x minus 3. which value of x would make line segment t v is parallel to line segment q s? 3 8 10 11
Answers
The value of x that would make line segment T V is parallel to line segment Q S is where x = 10. (Option C)
What is a line segment?In Mathematics, a Line Segment is a part of a line that has two endpoints.
The difference between a line segment and a line is that while the former has a starting and an endpoint, the latter does not. See the attached image.
What is the Step by Step solution to the above problem?Step 1
Note that if QS is Parallel to TV, then both sides of the triangle must be proportionally divided by TV.
That is: RV/VS = RT/TQ.
Step 2 - replace the segments by the relevant equations
(X + 4)/(X- 3) = (X+10)/(X)
Step 3 - Cross Multiply
x(x +4) = (x -3)(x +10)
Removing the parentheses, we have
X² +4X = X² +7X -30; Subtract X² from both sides and we have;
4X = 7X - 30
Step 3 - Collect like terms by cross multiplying-3X = -30 or
3X = 30
Divide both sides by three and we have:
X = 10
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Answer:
10 is the answer
A teacher administers three different versions of a test to his students. The two-way table shows the results. Find each probability.
Part A. P(pass | Test A)
The probability is ___%
Part B. P(pass | Test A)
The probability is ___%
SHOW ALL WORK
Answers
The P(pass | Test A) is 31.81%, P(pass | Test B) is 29.87%, and P(pass | Test C) is 22.07%
What is probability?It is defined as the ratio of the number of favourable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.
Part A:
Total number of students = 154
Total number of students passed the test = 49
The probability:
P(pass | Test A) = 49/154 = 31.81%
Part B:
Total number of students = 154
Total number of students passed the test = 46
The probability:
P(pass | Test B) = 46/154 = 29.87%
Similarly, for the probability:
P(pass | Test C) = 34/154 = 22.07%
Thus, the P(pass | Test A) is 31.81%, P(pass | Test B) is 29.87%, and P(pass | Test C) is 22.07%
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A disk is shaped like a flat circular plate. Its radius is 4.25 inches. To the nearest hundredth, what is the area of the disk? Use 3.14 for π.
Answers
Work Shown:
A = pi*r^2
A = 3.14*(4.25)^2
A = 56.71625
A = 56.72
50 points!! Question 1) Are the corresponding angles in figures ABCD and WXYZ congruent? Yes or No? Question 2) Are the corresponding sides in figures ABCD and WXYZ proportional? Yes or No? Show work for question 2. Question 3) Are figures ABCD and WXYZ similar? Yes or no?
Answers
No, there is not a rigid transformation or a combination of rigid transformations that will map ABCD to WXYZ.
What is congruency?The Side-Angle-Side Congruence Theorem (SAS) defines two triangles to be congruent to each other if the included angle and two sides of one are congruent to the included angle and corresponding two sides of the other triangle.
Two figures are congruent if their vertices can be mapped into one another by appropriate rigid transformation or a combination of rigid transformations. Examples of the transformation are; reflection, dilation, rotation and translation.
Comparing the two figures, it would be observed that they are not congruent. Since there is not a rigid transformation or a combination of rigid transformations that will map ABCD to WXYZ.
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Answer:not congruent.
Step-by-step explanation:
find the perimeter and the area of the figure and round answers to the nearest tenth
Answers
Answer:
Perimeter = 55.1 ftArea = 236.6 ft²Step-by-step explanation:
Perimeter
2(4) + 2 x 3.14 x 7.58 + 15 x 3.148 + 47.155.1 ftArea
15 x 4 + 3.14 x (7.5)²60 + 3.14 x 56.2560 + 176.625236.6 ft²Increase £80 by 15%
Answers
I need help with this one pls
Answers
Answer:
5/8
Step-by-step explanation:
Decimal form is 0.625
What is the Surface area of a rectangle with a length of 3 width of 2 and a height of 12
Answers
Explain
See drawing not to scale.
Surface area is L x W
2 ends 2x12
4 sides 3x2
A teacher administers three different versions of a test to his students The two-way table shows the results.
Find the probability of the event below using the formula for conditional probability. Round your answer to the nearest tenth.
P(pass | Test A)
The probability is ____%
SHOW ALL WORK
Answers
The P(pass | Test A) is 31.81%, P(pass | Test B) is 29.87%
What is probability?It is defined as the ratio of the number of favourable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.
Part A:
Total number of students = 154
Total number of students passed the test = 49
The probability:
P(pass | Test A) = 49/154 = 31.81%
Part B:
Total number of students = 154
Total number of students passed the test = 46
The probability:
P(pass | Test B) = 46/154 = 29.87%
Thus, the P(pass | Test A) is 31.81%, P(pass | Test B) is 29.87%.
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Answer:
87.5%
Step-by-step explanation:
add the number of students who took test A (49+7=56)
take the number of students who passed test A and divide it by the number of students who took the test A
49÷56=.875= 87.5%
5.369 rounded to the whole number?
Answers
Answer:
5
Step-by-step explanation:
Find the number in the whole number place
5
and look one place to the right for the rounding digit on the right side of the decimal point
3
.Round up if this number is greater than or equal to
5
and round down if it is less than
5
.
2
Which of the following is a rational number?
(10 Points)
о 3л
O 6√8
O√3+3
O4√16
Answers
Explanation: numbers that aren’t rational never end so when ask those are solved we find out its the last one
What is the minimum or maximum value of the given function
Answers
Answer:
It has a minimum of -3 and a unkown maximum
Step-by-step explanation:
Estimate the instantaneous rate of change in the percent of households that used the internet
for electronic banking in the year 2000.
Answers
The instantaneous rate of change in the percent of households that used the internet for electronic banking in the year 2000 is; 6.8%
How to find the instantaneous rate of change?Formula for instantaneous rate of change is;
f'(x) = (f(b) - f(a))/(b - a)
From the table showing the the percent of households that used the internet for electronic banking in the year 2000, we can find the instantaneous rate of change as;
f'(2000) = (f(2001) - f(1999)]/(2001 - 1999)
f'(2000) = (21.6 - 8)/(2001 - 1999)
f'(2000) = 13.6/2
f'(2000) = 6.8
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please answer!! will mark brainliest to whoever answers both :)
Answers
Answer:
2) 10.01 year
Step-by-step explanation:
1) already answered elsewhere in your posts
2) 9000 = 6500 e^(.0325 * t) where t = years
9000/6500 = e^(.0325*t) take ln (natural log) of both sides
.3254224 = .0325t
t = 10.01 10.01 year
Aide moi svp ses pour demain
Answers
Answer:
Step-by-step explanation:
E= 10/11 f=-5/9 G=4/10 H=-8/12
Ryan had a job during his summer vacation. He earned $7.25 per hour. He worked 15 hours a week for 6 weeks. How much money did Ryan earn?
Answers
how?: well if he worked 15 hours a week for 7.25, he would have earn $108.75 in a single week. Since we want to know how much he would earn in 6 week while working the same hours, simply multiply by 6 * 108.75 and you will get 652.50
How do I find the radius/x of a shaded region with it's area and/or angle measurement?
Answers
Answer:
[tex]x \approx 9.823\ ft[/tex]
Step-by-step explanation:
Remember that the area of a sector is defined as:
[tex]A = \frac{\theta}{360^\circ}\times \pi r^2[/tex]
In this problem, we are given the area [tex]A[/tex], and the angle [tex]\theta[/tex]. We can set up an equation to solve for the radius, which is x:
[tex]A = \frac{\theta}{360^\circ}\times \pi r^2\\128 = \frac{152}{360}\times \pi r^2\\128 \times \frac{360}{152} = \pi r^2\\\frac{5760}{19} = \pi r^2\\r = \sqrt{\frac{5760}{19 \pi}}\\r \approx 9.823[/tex]
Answer:
r ≈ 9.8 feet
Step-by-step explanation:
Formula of A Sector
Area (Sector) = πr² × θ/360°Substitute the given values in the formula to find r.
128 = 3.14 × r² × 152/36040.76 = r² × 19/45r² = 1834.2/19r² = 96.54r ≈ 9.8 feetHow you would divide. 17.6 divided by 3.2? *
