Answer:
Step-by-step explanation:
Pre-calc, need some help.
Which parametric equations represent y = – |x|? Check all that apply.
x = –t and y = |–t|
x = t2 and y = –|t2|
x = 2t and y = –|2t|
x = t3 and y = |t3|
x = t + 4 and y = –|t + 4|
Answer:
C and E
Step-by-step explanation:
x= 2t and y= -|2t| / x= t + 4 and y= -|t + 4|. I got in right on edg
Answer:
3,5
Step-by-step explanation:
did the assignment
Which statements are true about the fully simplified product of (b minus 2 c)(negative 3 b + c)? Select two options. The simplified product has 2 terms. The simplified product has 4 terms. The simplified product has a degree of 2. The simplified product has a degree of 4. The simplified product, in standard form, has exactly 2 negative terms.
Answer:
The answers are C and E
Step-by-step explanation:
Took the test.
Answer: options 3( C) and 5( E) are right.
Step-by-step explanation: edge 2023
HELPPPPPPP What is the volume? Use the pi button on your calculator. Round to nearest hundredth. (Don't include units, just the #.) *
Answer:
The volume is 2703.730036 (I didn't round it)
Step-by-step explanation:
5. Which could be the value of x in
the triangle below?
3x
19
6
A
10
С
6
B
9
D
4.
answer:
4
explanation:
3x-6=19
3x=19-6
3x=13
3x÷3=13÷3
x=4
Find the coordinates of each point after the described reflection. Give the distance between each point and its reflection.
Complete Question:
Find the coordinates of the point after the described reflection. Give the distance between the point and its reflection. R(-5, 8) is reflected across the x-axis _____________.
Answer:
[tex](a)[/tex] [tex]R' = (-5,-8)[/tex]
[tex](b)[/tex] The distance is 16 units
Step-by-step explanation:
Given
[tex]R = (-5,8)[/tex]
Solving (a): Reflection across x-axis
The rule is:
[tex]R(x,y) ==> R(x,-y)[/tex]
So, the reflection of [tex]R = (-5,8)[/tex] is:
[tex]R' = (-5,-8)[/tex]
Solving (b): The distance between R and R'
Distance (d) is calculated as:
[tex]d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}[/tex]
Where:
[tex]R = (-5,8)[/tex] ---- [tex](x_1,y_1)[/tex]
[tex]R' = (-5,-8)[/tex] --- [tex](x_2,y_2)[/tex]
This gives:
[tex]d = \sqrt{(-5- -5)^2 + (-8- 8)^2}[/tex]
[tex]d = \sqrt{(0)^2 + (-16)^2}[/tex]
[tex]d = \sqrt{256}[/tex]
[tex]d = 16[/tex]
The distance is 16 units
write the equation of the line in slope intercept form that passes through the points (4,6) and (10,0)
Answer:
y = -x + 10
Step-by-step explanation:
Find the slope:
0 - 6 / 10 - 4 = -6/6 = -1.
Put it in point-slope form:
y - 0 = -1(x - 10)
rearrange:
y = -x + 10
help please, I really need it to move on.
Answer:
D
Step-by-step explanation:
I believe it's d. it looks closest to the values provided.
4. What percent of all computers sold during the entire week
were sold on Friday!
Answer:
I confused... there are no numbers
Brody has already read 8 books this year before joining a book club,and he plans to read 1 book every month now that he has joined. If Body has read 28 books so far,how many months has he been with his book club?
Answer: 20 months
explanation: You subtract 8 from 28 since 8 is the amount he had before he joined. He also said he planned on reading 1 book per month after joining the club. You want to subtract the 8 since it isn't relevant to the book club books read.
Leslie has a box of markers. There are 3 black,
4 red, 2 blue, 1 brown, 2 purple, 2 yellow and 5
green markers. Create a sample space of possible
outcomes for choosing a marker. Is this a simple or compound event?
Answer:
Sample space: {Black, Red, Blue, Brown, Purple, Yellow, Green}
Simple event
Step-by-step explanation:
Sample space is a list of all the possible outcomes.
This is a simple event because you are only doing one event, such as choosing marbles from a bag.
A compound event would be multiple simple events, such as flipping a coin and rolling a dice.
Lori has 79 stickers. This is three more
than twice as many as Beth has. How
many stickers does Beth have?
Answer:
38
Step-by-step explanation:
79-3=76
76 divided by 2 =38
Find m
2x
(3x – 10)
D
E
B
mABC=
mZCBD-
Answer:
x--5
Step-by-step explanation:
2x+ x
What is a king to a god
Answer:
no-one God is the highest
Step-by-step explanation:
Answer:
No Church In The Wild
Step-by-step explanation:
3/5 feet long by 2/3 feet wide
What is the area?
Answer:
2/5
Step-by-step explanation:
To find Area you have times do length times Width so you would be doing 3/5 times 2/3 which would give you 2/5.
1. An investor deposits $1000 in an account that promises an annual interest rate of 5%,
compounded at the end of each year. How much will be in the account after seven years?
Answer:
$1,407.10
Step-by-step explanation:
1000(1.05)^7 = 1.05^7 ≈ 1.40710 * 1000 = $1,407.10
plss plss help mee :0
find the range of the function y=3-x when the domain is (-2,0,3)
Answer:
y=3−x
(−2,0,3)
Mr. Hoosier has gathered all these data about his finances.
Salary $159,000
Taxable interest $5600
Municipal Bond interest $15,000
Total Itemized deductions $9500
The personal exemption is $4700. The standardized deduction for a single filer is 5000.
Answer:
1. His tax is $37,490.
2. His average effective tax rate is 22%
3. His average tax rate is 24.93%
4. His marginal tax rate is 35%.
5. His tax liability will fall by $170
6. His tax liability will fall by $500.
Step-by-step explanation:
Note: This question is not complete. See the attached pdf file for the complete question.
The explanation of the answer is now given as follows:
1. What is his tax?
Note: See the attached excel for Mr. Hoosier's Tax Computation Based on the Tax Table in the question.
From the attached excel file, the Net tax is $37,490 which is his tax.
Therefore, his tax is $37,490.
2. His average effective tax rate
His average effective tax rate = Tax / (Taxable income + Tax exempt income) = Tax / (Taxable income +Municipal Bond interest) = $37,490 / ($150,400 + $20,000) = 0.2200, or 22%
3. His average tax rate
Average tax rate = Tax / Taxable Income = $37,490 / $150,400 = 24.93%
4. His marginal tax rate
His marginal tax rate is 35% as in the tax computation used based on the tax table.
5. Assume he discovers that he is eligible for a 500 tax deduction. How much does his tax liability fall with that addition?
Taxable income = 150400 - 500 = $149,900
Based on the tax table in the question, we have:
Tax = 8850 + (149900 - 55000) * 30% = $37,320
Reduction in tax liability = $37,490 - $37,320 =$170
Therefore, his tax liability will fall by $170
6. Now he discovers that he is eligible for a $500 tax credit. How much does his tax liability fall due to this credit?
The purpose of the tax credit is to make tax liability reduced dollar by dollar.
Therefore, if he discovers that he is eligible for a $500 tax credit, his tax liability will fall by $500.
Please help I will give brainiest !!!!!?!!!!!!
The exact circumference of a circle is 30. What is the diameter?
60
15
30
45
Answer:
9.549296
Step-by-step explanation:
30/pi = 9.549296 for diameter
9x + 4
*
5x + 20
x = [?]
A
B
49x
Step-by-step explanation:
The average response time to a bank robbery is about 9 min. A local community wants to improve on this time, so they implement advanced training seminars. They find that the new response time for a sample of 36 police officers is 8+4.2 (M SD) min. Test whether this advanced training seminar reduced response time at a.05 level of significance. A. This advanced training seminar significantly reduced response time, t(35) 11.43,p <.05 B. This advanced training seminar significantly reduced response time, (35)1.43, p < .05 C. This advanced training seminar did not reduce response time, t(35)--1.43, p> .05. D. There is not enough information to answer this question.
Answer:
The correct option is;
C. This advanced training seminar did not reduce response time, t(35) = -1.43, p > 0.05
Step-by-step explanation:
The given parameters are;
The population mean response time, μ = 9 minutes
The number of police officers in the sample, n = 36
The mean response time after the training, [tex]\overline x[/tex] = 8 minutes
The standard deviation of the response time after the training, s = 4.2 minutes
The level of significance, α = 0.05
The null hypothesis; μ ≥ 9
The alternative hypothesis; μ < 9
The test statistic for the t-test is [tex]t=\dfrac{\bar{x}-\mu }{\dfrac{s}{\sqrt{n}}}[/tex], therefore, we get;
[tex]t=\dfrac{8-9 }{\dfrac{4.2}{\sqrt{36}}} \approx -1.42857142857[/tex]
The degrees of freedom, df = n - 1 = 36 - 1 = 35
The critical-t at 0.05 level of significance is critical-t = 1.69, p(t < -1.43) > 0.05
and, we fail to reject the null hypothesis, therefore, the advanced training did not reduce the response time
What is the Surface Area of the cone?
Answer:
716.48
Step-by-step explanation:
Use the cone area theorem
PLEASE HELP SOON!
Simplify the inequalities and match them with the graphs that represent them.
(look at the screen shot)
Answers:
Graph A matches with 7x < 42Graph B matches with x+1 < 8Graph C matches with 3x > 15Graph D matches with 2x > 12===================================================
Explanation:
For each inequality given, we need to isolate x. We'll solve for x in pretty much the same way we solve an equation. So if we wanted to solve 2x = 12, we would divide both sides by 2 to get x = 6.
Similarly, solving 2x > 12 would lead to x > 6. The inequality sign does not flip. It only flips if you divide both sides by a negative number.
The graph of x > 6 has an open hole at 6 and shading to the right. So that matches with graph D.
---------------------
Solving 7x < 42 leads to x < 6 when we divide both sides by 7. The graph has the open hole at the same endpoint of 6, but now the shading is to the left. This shows all values smaller than 6. Therefore 7x < 42 matches with graph A.
---------------------
We have 3x > 15 match with graph C because that inequality is the same as x > 5, after we divide both sides by 3. We have an open hole at 5 and shading to the right.
---------------------
Lastly, the inequality x+1 < 8 solves to x < 7. We'll have an open hole at 7 and shading to the left. This describes graph B.
Any time you see an open hole, it means "do not include this value as part of the solution set". For instance, with x < 7, we have x = 7 as the open hole. This is because 7 < 7 is a false statement. A number cannot be smaller than itself.
HELP ME ASAP 100 POINTS The height of a right square pyramid is multiplied by 6, but the dimensions of the base remain fixed. By what factor is the volume multiplied? A. 3 B. 6 C. 12 D. 36
Answer:
the answer is 3 b. multiplied by 6
Please help thank you
Answer:
A triangle with angles measuring 55°, 60°, 65° degrees
Step-by-step explanation:
Two obtuse angles means two angles over 90°
The sum of all angles in a triangle are 180°
90°+90° itself is 180°, so we cant have two angles greater than 90°
Two right angles means 90° and 90° which is 180°, not possible
55°+60°+65° = 180° so it is possible.
Solve the following system of equations by the method of your choice.
-2x + y = 3
-4x + 2y = -20
a. none of the above
b. infinitely many solutions
c. no solution
d. one solution
Answer:
c. no solution
Step-by-step explanation:
This system of equations has no solution because when graphed, the lines are parallel to each other. Meaning they will never intersect. Since they will never intersect, there are no solutions.
Given the function f (x) = x² + 8x + 7, what are the zeros of f?
Answer:
x = - 7, x = - 1
Step-by-step explanation:
To find the zeros let f(x) = 0 , that is
x² + 8x + 7 = 0
Consider the factors of the constant term (+ 7) which sum to give the coefficient of the x- term (+ 8)
The factors are + 7 and + 1 , since
7 × 1 = + 7 and 7 + 1 = + 8 , then
x² + 8x + 7 = 0
(x + 7)(x + 1) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 7 = 0 ⇒ x = - 7
x + 1 = 0 ⇒ x = - 1
19u=2,527. Solve the equation
Answer:
=133
Step-by-step explanation:
1. Divide both sides of the equation by the same term
19=2527
2. Simplify
If you divide numbers you will get:
=133
And that's the answer
I hope this helps :)
hi please help i’ll give brainliest please
NEED HELP ASAP
-8x + 2y
Answer:
-13
Step-by-step explanation:
Answer: 2(-4x+y)
Step-by-step explanation:
rewrite -8 as 4*2
4*2x+2y
factor out the common term (2)
2(-4x+y)
point B is the image of the point A when A is rotated 90° counterclockwise around the origin
point B must be the same ________ from the origin as point A
Answer:
distance
Step-by-step explanation:
Point B must be the same distance from the origin as point A.
What is Rotation?Rotation is a kind of geometric transformation where a figure or point is rotated by a certain degrees about a given point.
Given that,
Point B is the image of the point A when A is rotated 90° counterclockwise around the origin.
A point P(x, y) after the rotation of 90°counterclockwise around the origin is P'(-y, x).
So the x coordinate changes to the negative of y coordinate and y coordinate changes to x coordinate.
Distance between P(x, y) from origin (0, 0) is √(x² + y²)
Similarly the distance P'(-y, x) from origin (0, 0) is √((-y)² + x²) = √(x² + y²)
Hence they are at the same distance.
Learn more about Rotation here :
https://brainly.com/question/12091224
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