Answer: They are perpendicular.
Step-by-step explanation:
If you graoh x+8y=-1 it gives you a negative slope line, and if you graph -8x+y=-1 you get a positive line, eventho it almost looks like it is undefined.
I hop ethis helped.
Find the selling price of a $10 item after a 40% markup
Answer:
Revenue: $14
Profit: $4
Step-by-step explanation:
Hope this helps!
A brainlist would be appreciated! I'm almost an expert!
Sequence 2: Week Population of Ants (Thousands) 1 2 2 6 3 18 4 5
Answer:
24,000 i think
Step-by-step explanation:
You are selling your car to buy a new one. The dealership is only offering you $3200 for your
12-year old car. If the dealership
states that a car's value depreciates at about $1300 yearly,
what did you pay for your car originally?
Answer:
$18800
Step-by-step explanation:
3200 + 12(1300)
3200 + 15600
Answer:
$15 600
Step-by-step explanation:
price now-$3200
yearly depreciate=$1300
in 12 years= 1300×12=$15 600
please help me with my algebra homework
Step-by-step explanation:
Here's the answer .... Hope it works .
Could someone help me with this?
Step-by-step explanation:
In first area before change = 216 in
but after change area =54 in
In second perimeter change = 18ft
but after change perimeter = 54ft
radius before change =16mm
but after change =8mm
Answer:
In first area before change=216 in.
but after change area= 54 in.
solve -3x+y=7
please step by step :)
Answer:
x = 1; y = 10
Step-by-step explanation:
There's absolutely not enough information to find exact values for x and y with the information given, but using an example x value of 1, you can solve for y:
-3(1) + y = 7
-3 + y = 7
y = 10
Please help me with this question
An individual can win a bouncy ball by guessing under which one of four cups the ball is located. After each guess, if the ball is won, a new ball is placed randomly under one of the four cups. If the ball is not won, then the ball is again placed randomly under one of the four cups. If an individual makes five guesses, what is the probability the individual will win a prize exactly two times?
Answer:
I think that it is: [5 2] (.25)^2(.75)^3
Step-by-step explanation:
This looks like a binomial distribution problem. The formula for that is:
A common discrete distribution is used in statistics. The probability the individual will win a prize exactly two times out of five is 0.2637.
What is Binomial distribution?A common discrete distribution is used in statistics, as opposed to a continuous distribution is called a Binomial distribution. It is given by the formula,
[tex]P(x) = ^nC_x p^xq^{(n-x)}[/tex]
Where,
x is the number of successes needed,
n is the number of trials or sample size,
p is the probability of a single success, and
q is the probability of a single failure.
The probability of getting a ball out of the four cups will be,
[tex]P = \dfrac14[/tex]
The probability of not getting the ball out of the four cups will be,
[tex]q = \dfrac34[/tex]
Now, using the binomial distribution the probability the individual will win a prize exactly two times out of five can be written as,
[tex]P(x) = ^nC_x p^xq^{(n-x)}\\\\P(x=2) = ^5C_2 \cdot (\dfrac{1}{4})^2\cdot (\dfrac34)^{(5-2)}\\\\P(x=2) = 10 \cdot \dfrac{1}{16} \cdot \dfrac{27}{64}\\\\P(x=2)=0.2637[/tex]
Hence, the probability the individual will win a prize exactly two times out of five is 0.2637.
Learn more about Binomial Distribution:
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One afternoon 12 inches of snow fell after 1 1/2 hours. At this rate, how many inches of snow fell in 1 hour?
Answer:
8 inches
Step-by-step explanation:
Use a Ratio:
12 inches : 1 1/2 hours
? inches : 1 hours
12/1.5 = x/1
8 = x/1
x = 8 * 1
x = 8 inches
?− 4 = –11
please answer in steps
Answer:
-7-4=-11
Step-by-step explanation:
-7 - 4 = -11
If you add -11 with +4 you will get -7.
So you have -11+4=-7
and -7-4=-11
hope this helps
What is the root of the polynomial equation x(x-2)(x+3) = 18? Use a graphing calculator and a system of equations.
-3
0
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Save and Exit
Next
Submit
Mark this and return
9514 1404 393
Answer:
x = 3
Step-by-step explanation:
The equation can be rewritten to make use of the graphing calculator's ability to identify function zeros:
x(x -2)(x +3) -18 = 0
The attached shows x = 3 is the only real solution.
_____
We're not sure what "system of equations" is intended. Perhaps it is ...
y = 18
y = x(x -2)(x +3)
To create the expression we graphed, we effectively subtracted the first equation from the second.
The intersection of two planes can be a point true or false
Answer:
true
Step-by-step explanation:
Answer:
truueee
Step-by-step explanation:
What is the product of 7 x 2/5 written as a mixed number?
Answer:
[tex] 2 \frac{4}{5} [/tex]
Step-by-step explanation:
[tex]7 \times \frac{2}{5} \\ \\ = \frac{7 \times 2}{5} \\ \\ = \frac{14}{5} \\ \\ = 2 \frac{4}{5} [/tex]
Jose weighs 45 pounds. His older brother, Saul, weighs 3 times as much as Jose and 5 times as much as their little brother, Nick. List the weights of each brother.
help me plz due today
Someone help and please make sure it’s right :)
Answer:
9
Step-by-step explanation:
[tex]11x + 1 + 7x + 17 = 180 \: \: \: \: 18x + 18 = 180 \: \: \: \: \: \: \: 18x = 180 - 18 \: \: \: \: \: \: \: \:18x = 162 \: \: \: \: \: \: \: \: \: \: 162 \div 18 = 9[/tex]
number that results from multiplying two or more numbers
Answer:
This is called the product.
Step-by-step explanation:
Answer:
The result of a multiplication operation is called a product. The multiplication of whole numbers may be thought of as a repeated addition; that is, the multiplication of two numbers is equivalent to adding as many copies of one of them, the multiplicand, as the quantity of the other one, the multiplier.
Step-by-step explanation:
Ceil annual salary is $72,000. What is her biweekly salary?
Answer:
3000.00
Step-by-step explanation:
72,000 divide by 12 months = 6,000
6000.00 divide by 2 = 3000.00
What is the volume of the prism????
Tony is a salesperson who earns $560 per week plus $60 for each sale he makes. This week, he wants to earn at least $920. Write and solve an inequality that represents the number of sales Tony must make this week to earn at least $920. Write a sentence to represent the solution set in the context of the problem.
Answer:
920 = 560 + 60(x) He must make at least 6 sales to have earned $920
Step-by-step explanation:
Inequality for the situation → 60x+ 560 ≥ 920
Tony must make a sale of 6 to earn at least $920.
Formation of an inequality from a verbal statement: Define the variable first, then form an equation as per given
statement.
If the statement ends with at least, inequality will be denoted bythe sign (≥).
Given in the question,
Tony earns $560 per week as a fixed amount and $60 for each sale.He wants to earn at least $920 this week.Let the number of sales Tony does every week = x
Expression for his weekly earning → $(60x + 560)
If he wants to earn at least $920,
Inequality representing the situation will be,
60x+ 560 ≥ 920
Simplify the inequality for the solution,
60x + 560 - 560 ≥ 920 - 560
60x ≥ 360
x ≥ 6
Therefore, Tony must make a sale of 6 to earn at least $920.
Learn more about the solution of inequality here,
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The sum of 8 and a number is at least 25. What could the number be?
17
25 - 8 = 17
so
17 + 8 = 25
. All clothing is being marked down 15%. Which expression represents the new retail price? A) 0.85x C 1.85x (B) 1.15x D 0.15x
Answer:
A
Hope that helps!
Step-by-step explanation:
The expression that represents all clothing is being marked down 15%.
is A) 0.85x.
What is the percentage?A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.
We know fractions and percentages are related.
Assuming the cost of clothing to be 'x'.
∴ After the markdown of 15% it is,
= {(100 - 15)/100}×x.
= {85/100}×x.
= 0.85x
learn more about percentages here :
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F. Fernando the Ferret got 48 questions right out of 77 questions. What is his grade?
Answer:
Fernando's grade is a 62%
Step-by-step explanation:
48 divided by 77 is .62
Will mark brainly
ASAP
please help me with these two i have to send it after class!!!!!
the first one is the answer to #1
and the second one is the answer to #2
The diagonals of a rectangle that is not a square are not perpendicular.
Answer:
False, because the lines do intersect at any point since there are no right angles
Step-by-step explanation:
how do i sketch a graph of y=2x that passes through the origin
Step-by-step explanation:
Given
Equation of line is [tex]y=2x[/tex]
Equation of line with slope m and intercept c on Y-axis is
[tex]y=mx+c[/tex]
Comparing the given line with slope-intercept form
[tex]\Rightarrow m=2\ \text{and}\ c=0[/tex]
The slope is also equal to [tex]\tan \theta[/tex]
[tex]\Rightarrow \tan \theta =2\\\Rightarrow \theta =63.43^{\circ}[/tex]
To sketch the equation of [tex]y=2x[/tex]
Make a line that passes through the origin at an angle of [tex]63.43^{\circ}[/tex] with the x-axis.8) Does the table show a function? *
Answer:
yes
Step-by-step explanation:
Answer:
no
Step-by-step explanation:
State whether each set of hypothesis is valid for a statistical test and briefly explain why ?
Complete Question:
State whether each set of hypothesis is valid for a statistical test and briefly explain why ?
[tex]H_0 : \mu=10; \ \ \ H_a : \mu\ne10[/tex]
[tex]H_0 : p \ne 0.5; \ \ \ H_a : p = 0.5[/tex]
[tex]H_0 : p_1 < p_2; \ \ \ H_a : p_1 \supset p_2[/tex]
Answer:
[tex]H_0 : \mu=10; \ \ \ H_a : \mu\ne10[/tex] --- Valid
[tex]H_0 : p \ne 0.5; \ \ \ H_a : p = 0.5[/tex] --- Invalid
[tex]H_0 : p_1 < p_2; \ \ \ H_a : p_1 \supset p_2[/tex] --- Invalid
Step-by-step explanation:
For a test of hypothesis to be valid, the null hypothesis has to contain some form of equality i.e. [tex]=, \le,\ or\ \ge[/tex]
So, the above will be used to test for validity in the given tests of hypotheses.
[tex]H_0 : \mu=10; \ \ \ H_a : \mu\ne10[/tex]
This is valid because the null hypothesis has an equality sign.
The null hypothesis is: [tex]H_0:\mu = 10[/tex]
[tex]H_0 : p \ne 0.5; \ \ \ H_a : p = 0.5[/tex]
This is invalid because the null hypothesis does not have any equality sign. The null hypothesis is: [tex]H_0:p \ne 0.5[/tex]
[tex]H_0 : p_1 < p_2; \ \ \ H_a : p_1 \supset p_2[/tex]
This is invalid because the null hypothesis does not have any equality sign. The null hypothesis is: [tex]H_0:p_1 <p_2[/tex]
*ANSWER ASAP!! ITS FOR MY EXAM*
Matt drives 750 miles each month. He averages 21.5 MPG. If gas costs $3.15 per gallon, how much does he pay per month in gas?
a.) $75.15
b.) $100.88
c.) $109.88
Answer: c) $109.88
Step-by-step explanation: divide 750 by 21.5 to figure out how many gallons he would need and than multiply that by $3.15 to find out how much it would cost and you get $109.88
Answer:
109.88
Step-by-step explanation:
Divide 750 by 21.5. Then multiply the result by 3.15.