100 POINTS!!!
If you have a line perpendicular to the line given by the equation
, what would be the slope of the perpendicular line?
EXPLAIN YOUR ANSWER
Answers
For example, the slope of a line perpendicular to a line with a slope of 2 would be -1/2
In this case, the slope is -4/5, so the slope of the perpendicular line would have the opposite sign, +, and is flipped, 5/4.
Therefore, the answer is a slope of 5/4, or answer choice A
Answer:
5/4
Step-by-step explanation:
y intercept does not matter
formula is -1/slope
this works because making it negative reflects it over the y axis, and the reciprocal adjusts the angle
Related Questions
How long will it take to count to 3,140,000 by 1's?
show you work!
explain your answer!
Answers
Answer:
A long time
Step-by-step explanation:
A long time
A long time
A study investigated the job satisfaction of teachers allowed to choose supplementary curriculum for their classes versus teachers who were assigned all curricular resources for use in their classes. the authors of the study wanted to know if the two groups of teachers had different levels of job satisfaction. they will use a significance level of 5% for their test. upper-tail values a 5% 2.5% 1% critical z-values 1.65 1.96 2.58 what is (are) the critical value(s) for z in this study? –1.65 and 1.65 –1.96 and 1.96 1.65 1.96
Answers
The critical values of Z in this study are given by: Option C: -1.96 and 1.96
How to form the hypotheses?There are two hypotheses. First one is called null hypothesis and it is chosen such that it predicts nullity or no change in a thing. It is usually the hypothesis against which we do the test. The hypothesis which we put against null hypothesis is alternate hypothesis.
Null hypothesis is the one which researchers try to disprove.
For this case, we want to know if the two groups of teachers had different levels of job satisfaction.
Suppose that we have:
[tex]\mu_1[/tex] = mean of level of job satisfaction for first group of teachers.[tex]\mu_2[/tex] = mean of level of job satisfaction for second group of teachers.Then, as the test is for checking if the difference exist, the null hypothesis will deny existence of any difference.
Thus, we get:
Null hypothesis: [tex]H_0: \mu_1-\mu_2 = 0[/tex] or we say [tex]H_0: \mu_1 = \mu_2[/tex]Alternate hypothesis: [tex]H_1: \mu_1-\mu_2 \neq 0[/tex] or we say [tex]H_1: \mu_1 \neq \mu_2[/tex]The alternate hypothesis creates two regions, on either side as:
[tex]\mu_1 < \mu_2[/tex] and [tex]\mu_1 > \mu_2[/tex]
This is why it is two tailed test.
The level of significance is 5% specified.
Thus, [tex]\alpha = 5\% = 5/100 = 0.05[/tex]
From the critical values table, the critical value(s) of Z for level of significance 0.05 and for two tailed test are: [tex]\pm 1.96[/tex]
Thus, the critical values of Z in this study are given by: Option C: -1.96 and 1.96
Learn more about hypothesis testing here:
https://brainly.com/question/18831983
Answer:
Step-by-step explanation:
its option B
The are of a circle is 109.4cm^2. Calculate the length of its radius.
Answers
Answer:
r≈ 5.9 cm
Step-by-step explanation:
Karen wants to buy 5 pounds of baby carrots. the packages of carrots each weigh 14 ounces, how many will she need to buy to reach 5 pounds?
Answers
please answer quickly check the image below
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C.
Number of half-unit cubes = 18
V = 2 1/4 cubic units
volume of rectangle: length * width * height
[tex]\hookrightarrow 1\dfrac{1}{2} * 1\dfrac{1}{2} *1[/tex]
[tex]\hookrightarrow \dfrac{3}{2} * \dfrac{3}{2} *1[/tex]
[tex]\hookrightarrow \dfrac{9}{4}[/tex]
[tex]\hookrightarrow 2\dfrac{1}{4}[/tex]
To find number of half units cubes:
volume * 8 half-unit in every cube
[tex]\rightarrow 2\dfrac{1}{4} *8[/tex]
[tex]\rightarrow \sf 18[/tex]
Help please???????????
Answers
Answer:
525
Step-by-step explanation:
i really dont know what it asking
What is the value of X?
(x + 11)
(3x + 7)
Answers
Answer:
im not sure if this is correct but:
Step-by-step explanation:
4x+18
360= 4x+18
360-18=342
342/4 is 85.5
to check work
(85.5*4) + 18
=360
(X+11)
+(3x+7)
————
(4x+18)=180
180
- 18
——
162/4= 40.5
The area of the triangle below is 2/15 square centimeters. What is the length of the
base? Express your answer as a fraction in simplest form.
Answers
Let's set the base of the triangle to x.
(x* 3/5) / 2= 2/5
Now just solve
x*3/5=4/5
x=4/3
The base has length 4/3= =1 1/3
Hope it helped!
What value of x will make parallelogram abcd a rhombus? x =
Answers
The value of x that will make the considered parallelogram ABCD a rhombus is 4 units.
What is rhombus and some of its properties?Rhombus is a parallelogram whose all sides are of equal lengths.
Its diagonals are perpendicular to each other and they cut each other in half( thus, they're perpendicular bisector of each other).Its vertex angles are bisected by its diagonals.The triangles on either side of the diagonals are isosceles and congruent.For this problem, the missing figure is attached below.
We see that the angle between the diagonals is [tex](3x- 12)^\circ[/tex]
It is given that ABCD is a parallelogram.
For ABCD parallelogram to be a rhombus, its diagonals need to be perpendicular to each other.
Perpendicular lines have 90° angle between them.
Thus, we need:
[tex](3x- 12)^\circ = 90^\circ[/tex]
Evaluating value of x:
[tex](3x- 12)^\circ = 90^\circ\\3x - 12 = 90\\\text{Adding 12 on both the sides}\\3x = 102\\\text{Dividing both the sides by 3}\\\\x = 12/3 = 4[/tex]
Thus, the value of x is 4
Learn more about rhombus here:
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Answer:
ANSWER: x=34
Step-by-step explanation:
E2020
Which of the following probabilities is equal to approximately 0.2957? use the portion of the standard normal table below to help answer the question. z probability 0.00 0.5000 0.25 0.5987 0.50 0.6915 0.75 0.7734 1.00 0.8413 1.25 0.8944 1.50 0.9332 1.75 0.9599 p (negative 1.25 less-than-or-equal-to z less-than-or-equal-to 0.25) p (negative 1.25 less-than-or-equal-to z less-than-or-equal-to 0.75) p (0.25 less-than-or-equal-to z less-than-or-equal-to 1.25) p (0.75 less-than-or-equal-to z less-than-or-equal-to 1.25)
Answers
A z-table is also known as the standard normal distribution table. The probability of P(0.75≤ z ≤ 1.25) is 0.121.
What is a Z-table?A z-table also known as the standard normal distribution table, helps us to know the percentage of values that are below (or to the left of the Distribution) a z-score in the standard normal distribution.
As it is given that the probability and the z-table is given to us, as shown below,
z Probability
0.00 0.5000
0.25 0.59871
0.50 0.6915
0.75 0.7734
1.00 0.8413
1.25 0.8944
1.50 0.9332
1.75 0.9599
The following probabilities can be written as:
1. The probability of P(-1.25)
[tex]P(-z)=1-P(z)\\\\P(-1.25)=1-P(1.25)\\\\P(-1.25)=1-(0.8944)\\\\P(-1.25)=0.1056[/tex]
The probability of P(-1.25) is 0.1056.
2. The probability of P(-1.25 ≤ z ≤ 0.25)
[tex]P(-1.25\leq z\leq 0.25)=P(0.25)-P(-1.25)\\\\P(-1.25\leq z\leq 0.25)=0.59871-0.1056=0.49311[/tex]
The probability of P(-1.25 ≤ z ≤ 0.25) is 0.49311.
3. The probability of P(-1.25 ≤ z ≤ 0.75)
[tex]P(-1.25\leq z\leq 0.75)=P(0.75)-P(-1.25)\\\\P(-1.25\leq z\leq 0.75)=0.7734-0.1056=0.6678[/tex]
The probability of P(-1.25 ≤ z ≤ 0.75) is 0.6678.
4. The probability of P(0.25 ≤ z ≤ 1.25)
[tex]P(0.25 \leq z\leq 1.25)=P(1.25)-P(0.25)\\\\P(0.25\leq z\leq 1.25)=0.8944-0.59871=0.29569[/tex]
The probability of P(0.25 ≤ z ≤ 1.25) is 0.29569.
5. The probability of P(0.75≤ z ≤ 1.25)
[tex]P(0.75\leq z\leq 1.25)=P(1.25)-P(0.75)\\\\P(0.75\leq z\leq 1.25)=0.8944-0.7734=0.121[/tex]
The probability of P(0.75≤ z ≤ 1.25) is 0.121.
Learn more about Z-table:
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Answer:
C
Step-by-step explanation:
P (0.25 less-than-or-equal-to z less-than-or-equal-to 1.25)
Please show steps to answer. No links please
Answers
Answer:
18 hours after 10 AM
Step-by-step explanation:
We are looking for the time the helicopter and the plane will be the same distance from Burbank after 10 AM.We are given the two equations for the distance that the helicopter and the plane are away, in miles.It also says that R is the variable for time.Using this information, we need to solve for the time with broth equations, so we would set both up to be equal to each other, since they will be the same distance away from each other.It would look like this: -150r + 260 = -270r + 440.Add 150r to both sides.260 = -10r + 440.Add -10r to both sides.Now we have 10r + 260 = 440Subtract 260 from both sides.10r = 180Divide each side by 10 to isolate the R.R = 18.It would be 18 hours after 10 AM.If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.
The bear population increases at a rate of 2% per year. If there are 1,200 bears currently, how many bears will there be in 10 years?
Answers
[tex]\qquad \textit{Amount for Exponential Growth} \\\\ A=P(1 + r)^t\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{initial amount}\dotfill &1200\\ r=rate\to 2\%\to \frac{2}{100}\dotfill &0.02\\ t=\textit{elapsed time}\dotfill &10\\ \end{cases} \\\\\\ A=1200(1 + 0.02)^{10}\implies A=1200(1.02)^{10}\implies A\approx 1462[/tex]
You have a half pizza leftover in the refrigerator. The first night, the pizza goes to the refrigerator and eats 20% of the pizza in hope that no one notices the missing pizza. The second night the pizza pirate returns and eats 20% of the remaining pizza. the pattern continues for the next few days.
Answers
[tex]Answer:[/tex]
The pizza pirate ate the whole pizza!
2(days) + 3(a few days) = 5
20 x 5 = 100%
Therefore, the whole pizza is gone. Don't worry, I'll buy a new one!
How do I do this and what is the correct answer?
Answers
Hope this helps.
Correct me if I’m wrong.
Answer:
10 2/3
Step-by-step explanation:
[tex] \frac{24}{9} = \frac{8}{3} [/tex]
[tex] \frac{8}{3} + 8 = \frac{8 + 24}{3} = \frac{32}{3} = 10 \frac{2}{3} [/tex]
GEOMETRY HELP!!!!!!!!
Why is he wrong?
Answers
Answer:
He is wrong since reflecting the image across the x-axis means reflecting it on the axis that is horizontal and reflecting it over the y-axis means reflecting it on the y-axis which is verticle.
Answer:No, it would not be the same if you reflect it from the X axis.
Step-by-step explanation:
because the the shape is not "on" the X axis. When you reflect the shape across the X axis, then you will not really get a shape. It's easier if you imagine you put a mirror on the x axis and looked at it. Malik would have to shift the whole shape down so that the current points (3,1) and (-3,1) would change to (3,0) and (-3,0) Also shifting down the other two points too. Reflecting it is like if you had the shape in paper and you folded it in half. If it matches perfectly, then you know that you have a match and that it is reflecting. If it doesn't fold perfectly, then it doesn't reflect. So if you folded the shape from the X axis, you wouldn't get a perfect match so he is wrong. Does it help?
a practice field is 250 feet long . the game field is 40% longer than the practice field . how long is the game field
Answers
The game field is 350 40 percent for 250 is 100 and 250 plus 100 is 350
what is the fractions that are multiples of 1/6
Answers
Answer:
1/31/2those would be the only oneshelp me please I don't understand
Answers
Answer:
it is B. increasing
Answer:
C.it is a constant
Step-by-step explanation:
Hope this helped!
Please mark me as brainliest!
Which situation can be represented by the inequality x < 56? A) Tina's dog weighed 56 pounds two months ago. He gained weight and weighs x pounds now. B) Tina has x dollars. She has more than enough money to buy a camera that costs $56. C) Tina walks for 56 minutes. She walks for the same amount of time as her sister, who walks for x minutes. D) Tina's height is x inches. She is shorter than her brother, whose height is 56 inches.
Answers
Given:
The inequality is [tex]x<56[/tex].
To find:
The correct situation for the given inequality.
Solution:
Tina's dog weighed 56 pounds two months ago. He gained weight and weighs x pounds now. It means, weighs x pounds is more than 56 pounds.
[tex]x>56[/tex]
So, option A is incorrect.
Tina has x dollars. She has more than enough money to buy a camera that costs $56. It means, amount $x is more than required amount $56.
[tex]x>56[/tex]
So, option B is incorrect.
Tina walks for 56 minutes. She walks for the same amount of time as her sister, who walks for x minutes. It means, x is equal to 56.
[tex]x=56[/tex]
So, option C is incorrect.
Tina's height is x inches. She is shorter than her brother, whose height is 56 inches. It means, Tina's height is x inches is less than her brother's height, i.e., 56 inches.
[tex]x<56[/tex]
Therefore, the correct option is D.
Answer:
11
Step-by-step explanation:
I'm in K12 and this is right
please help its for algebra 1
Answers
Answer:
(-1, -6)
Step-by-step explanation:
If you do rise over run you get the same slope as 8x+7y=-50
Find the value of x.
Answers
Answer:
x=128
Step-by-step explanation:
Answer:128
Step-by-step explanation:
The angles in a trapezoid add up to 360, so if you add all the ones already given then subtract them from 360 you get 128.
Solve the compound inequality.
7
Answers
Answer:
Ok, first of all, that's not an inequlity. An inequality includes < or >, and also ≤ or ≥. 7 is not an inequality, so perhaps you made a mistake typing the question?
Step-by-step explanation:
Simplify the expression below. Show all steps.
√4x^2 ÷ 3y
Answers
Answer:
4x÷3y
Step-by-step explanation:
√4x^2 ÷ 3y
√16x÷3y
4x÷3y
Hoped it helped :)
A 0.13
B 0.17
C 0.39
D 0.45
Answers
Write an equation of the line passing through (-4,7) and having slope - 5. Give the answer in slope-intercept form.
The equation of the line in slope-intercept form is
Answers
Answer:
Step-by-step explanation:
The general equation is y = mx + b
You already have m which is the slope. So the general equation becomes y = -5x + b
The point is meant to find b
x = - 4
y = 7
7 = - 5*-4 + b
7 = 20 + b Subtract 20 from both sides.
7 - 20 = 20-20 + b Combine
- 13 = b
Answer: y = - 5x - 13
Find the sum of 3squared4 and 2 squared 3 in simplest form. Also, determine whether the result is rational or irrational and explain your answer.
Answers
Answer:
1
Step-by-step explanation:
you gotta add
what is the image of (-2, -5) after a reflection over the line y = x
Answers
Answer:
2, -5
Step-by-step explanation:
Answer:
(-5, -2)
Step-by-step explanation:
Rule for reflection over y = x :
(x, y) -> (y, x)
For questions 7 – 10, choose the figure that is most likely the next step in the sequence.
Answers
Answer:
Step-by-step explanation:
7) First shape has 3 sides; second figure has 4 sides and the third shape has 5 side. In this way, the nest shape should have 6 sides
Answer: B
8) C
help with question pls I don't understand
Answers
Answer:
15x^3y+6x^2y^2+9xy^3
Step-by-step explanation:
3xy ( 5x^2 +2xy +3y^2)
Distribute the 3xy to all terms in the parentheses
3xy*5x^2+3xy*2xy+3xy*3y^2
15x^3y+6x^2y^2+9xy^3
Answer:
15[tex]x^{3}[/tex]y + 6[tex]x^{2}[/tex][tex]y^{2}[/tex] + 9x[tex]y^{3}[/tex]
Step-by-step explanation:
multiple everything in the brackets by 3xy
3xy x 5[tex]x^{2}[/tex] = 15[tex]x^{3}[/tex]y
3xy x 2xy = 6[tex]x^{2}[/tex][tex]y^{2}[/tex]
3xy x 3[tex]y^{2}[/tex] = 9x[tex]y^{3}[/tex]
15[tex]x^{3}[/tex]y + 6[tex]x^{2}[/tex][tex]y^{2}[/tex] + 9x[tex]y^{3}[/tex]
(2)/(3)a-7+(7)/(18)a-5(1)/(6)
Answers
Answer:
19a - 141
-------------
18
Step-by-step explanation:
Combine multiplied terms into a single fraction
Combine multiplied terms into a single fraction
Multiply the numbers