Answer:
7 pairs = 140
Step-by-step explanation:
7 pairs of shoes will cost $560
explanation: 80 x 7 is 560
A 14 V battery powers the headlights of a car. What is the resistance of the headlights if they draw 3.0 A of current when turned on?
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Answer:
4 2/3 ohms
Step-by-step explanation:
The resistance is the ratio of voltage to current.
R = V/I
R = (14)/(3) = 4 2/3 . . . ohms
Find the equation of the line shown
Answer:
x = 2 & y = 8
And this means-
x+y=10
Note:- These type of questions can have infinite solutions
Answer:
y=x+6
Step-by-step explanation:
The probability of rolling a 2 on a number cube is 1/6 . If you were to roll the
cube 30 times, you would expect to get a 2 around 5 times (1/6 · 30 = 5).
You simulate 30 rolls. How many 2s would make you question your model?
A. 14
B. 5
C. 2.
D. 8
Answer: a
Step-by-step explanation:
If a cube is rolled by 30 times then 5 times 2s will make the question the model.
What is probability?Probability is the occurrence of any event or how likely an event can happen.
Mathematically probability = the number of desired outputs by the number of the possible outcomes.
In the number cube, there are six faces above each of them written one to six later.
The probability of getting 2 at once time will be 1/6 since the number of desired output is only one and possible outcomes are six.
Mathematically(Theoretically) if we roll the cube 30 times then the number of 2s will be 1/6 × 30 = 5 times.
If experimentally if we roll dice and the number of 2s came 5 times then our question will become a model.
So by 5 times, 2s will make the question model.
For more information about the probability
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13. Tikboy earns P 320 a day. This is 4% of her monthly income. How much is her monthly incom
a. 800
b. 80
c. 8,000
d 80,000
Answer:
b is the answer okkkkkkkkkkkkkkkk
ok whoever helps me is da best so plz :) 50 points
Answer:
A(-2/3)
B(-1/6)
C(1/2)
D(4/3)
Step-by-step explanation:
There are 6 tics in each section.
That means each tic is 1/6
A(-4/6) -> (-2/3)
B(-1/6)
C(3/6) -> (1/2)
D(8/6) -> (4/3)
factor the polynomial
Answer:
Step-by-step explanation:
[tex]6a^2-13ab-5b^2\\ \\ 6a^2+2ab-15ab-5b^2\\ \\ 2a(3a+b)-5b(3a+b)\\ \\ (2a-5b)(3a+b)[/tex]
YOU GET 100 POINTS!!!! Select the correct graph.
Based on the end behaviors, which graph is the graph of f(x) = -2x4 − 4x3 + x2 + x + 3?
Given:
The function is
[tex]f(x)=-2x^4-4x^3+x^2+x+3[/tex]
To find:
The graph of the function by using the end behaviors.
Solution:
We have,
[tex]f(x)=-2x^4-4x^3+x^2+x+3[/tex]
The degree of the polynomial is 4 which is even and the leading coefficient is -2, which is negative. So,
[tex]f(x)\to -\infty\text{ as }x\to -\infty[/tex]
[tex]f(x)\to -\infty\text{ as }x\to \infty[/tex]
It means, the graph of the function approaches to negative infinity on the both ends.
Therefore, the correct option is C.
100 POINTS AND BRAINLIEST! Explain your answer PLEASE!
Answer:
27000
Step-by-step explanation:
I = P×R×T
=2000×25/10×5
=25000
AMOUNT= P+I
=2000+25000
=27000
Compound interest:-
P(1+r)^t2000(1+0.025)⁵2000(1.025)⁵2000(1.314)2628$Total:-
2000+2628=4628$Question 1 options:
68°
136°
158°
112°
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Answer:
(d) 112°
Step-by-step explanation:
Opposite angles in an inscribed quadrilateral are supplementary.
∠P = 180° -∠R = 180° -68°
∠P = 112°
Answer:
112 degrees.
Step-by-step explanation:
This is an isosceles trapezium.
So the required angle = 180 - 68 = 112.
HELP I NEED HELP ASAP
Answer:
I get Answer c x=6 seconds
21. Which equation best represents the line of regression in the following
scatter plot?
O A) y = 2x + 1
O B) y = -2x + 1
O C) y = -1/2x + 3
OD) y = x + 2x + 4
Answer:
D
Step-by-step explanation:
Write the equation of each line in slope-intercept form and identify the slope. 4x=2+y
Answer:
y = 4x - 2
Step-by-step explanation:
Given: 4x=2+y
First, subtract 2 on both sides to isolate out y. (Slope-intercept form is y=mx+b)
Once subtracted, you get: 4x-2=y
Rearrange it, and you get: y=4x-2
Help!please do this fast!!!
Answer:
The ordered pair works for the first equation on the top, but not the second equation on the bottom.
Step-by-step explanation:
You have to plug in the x and y values into the equations:
x - 2y = -6
2 - 2(4) = -6
That equation works.
...now for the next one...
3x + 2y = 12
3(2) + 2(4) = 12
That equation doesn't work.
Hope this helps!
Help I’ll give out brainliest pls dont answer if you don’t
Answer:
8x-8=16 is the answer after combining like terms
Answer:
x=3
Step-by-step explanation:
8x-8=16
8x=24
x=3
:)
What’s the slope to this graph?
Answer:
6/3
Step-by-step explanation:
I think bhjukjkfiffo
Answer:
-5/3
Step-by-step explanation:
rise/run you go down 5 and over 3
what does 4m^2 +5m if m=-2 equal?
Answer:
-26
Step-by-step explanation:
tell me if im right and please brainliest
If Alfie tosses the paper cup more times, what is the expected number of times that the cup will land on its side?
Question:
Alfie tossed a paper cup in the air 150 times and recorded the side it landed on.
Right side up = 60 Upside down = 53 Side = 37
If Alfie tosses the paper cup 100 more times what is the expected number of times the cup will land on its side?
Answer:
The expected number of times the cup will land on its side is 25 times
Step-by-step explanation:
Given
[tex]Right = 60[/tex]
[tex]Upside\ down = 53[/tex]
[tex]Side = 37[/tex]
Required
First, we calculate the probability of landing on side
[tex]P(Side) = \frac{n(Side)}{Total}[/tex]
[tex]P(Side) = \frac{37}{150}[/tex]
[tex]P(Side) = 0.247[/tex]
Next, we calculate the expected value; E(x) using:
[tex]E(x) = n * P(x)[/tex]
When tossed 100 more times:
n = 100 and P(x) = P(Side) = 0.247
So:
[tex]E(x) = 100 * 0.247[/tex]
[tex]E(x) = 24.7[/tex]
[tex]E(x) = 25[/tex] --- approximated
Hence, it is expected that it will land on its side 25 times
find the area plz and thank u have explanation
Step-by-step explanation:
a pentagon is 5 equilaterial triangles meaning you would use the formula of area of a triangle and multiply that by 5.
422.5m^2 is the answer
Helppp plzzz I will mark brainliestttt
Answer:
B. 160 inches
Step-by-step explanation:
The wrapping paper would be the surface area of the box.
The surface area of a box is 2(h * W) + 2(h * L) + 2(W * L)
h = height
W = width
L = length
length x width x height
length = 5 in
width = 2 in
height = 10 in
2(10 * 2) + 2(10 * 5) + 2(2 * 5)
2(20) + 2(50) + 2(10)
40 + 100 + 20
160 inches
I need help with inequality question.
Answer:
the answer is c
Step-by-step explanation:
:))))))))
Solve 3[-x + (2x + 1)] = x - 1.
Answer:
x=-2
Step-by-step explanation:
distribute 3
solve
Please help me in number 34 please!!!!
Answer:
D
Step-by-step explanation:
use math wwwway , it gives ypu the answer and explenation
I NEED HELP OW RN rn please
Answer:
(4,10)
Step-by-step explanation:
Well, you just count each unit coming from the x-axis up and then do the same for the y axis going to the right. You can also see that the graph is counting by 2 if you look at the "O" coordinate
Researchers were investigating whether there is a significant difference between two medications, R and S, designed to reduce fleas found on cats. From a sample of 300 cat owners, the researchers randomly assigned 150 cat owners to use medication R on their cats and the remaining cat owners to use medication S. For the cats using medication R, 88 percent had no fleas. For the cats using medication S, 90 percent had no fleas. Which of the following is the most appropriate method for analyzing the results?
A two-sample z -test for a difference in population proportions
A two-sample z-test for a difference in sample proportions
A one-sample z-test for a sample proportion
A one-sample z-test for a population proportion
A one-sample z-test for a difference in sample proportions
Answer:
A) A two-sample z -test for a difference in population proportions
Step-by-step explanation:
To determine whether a difference in proportions is significant, the two-sample z-test for a difference in population proportions is the most appropriate method for the analysis.
The most appropriate method for analyzing the results is A. A two-sample z-test for a difference in population proportions.
What is the hypothesis?In statistics, hypothesis testing is the process by which an analyst tests an assumption about a population's parameter.
In this scenario, we have two different treatments (medication R and S) applied to two separate samples (150 cat owners each) and we want to determine if there is a significant difference in the proportion of cats with no fleas between the two groups.
This is a classic scenario for a two-sample z-test for a difference in population proportions, which tests the hypothesis that the difference in proportions between two independent populations is equal to zero.
Thus, a two-sample z-test for a difference in population proportions.
Hence, the correct answer would be option (A)
To learn more about the z-test statistic click here:
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Complete the operation. Show steps needed
without a calculator.
a) 3.76 + 0.345
Answer:
4.105000
Step-by-step explanation:
because you have to add up
What is the value of x?
Answer:
25
Step-by-step explanation:
Fill in the missing number
7x3=(__x3)+(4x3)
Answer:3
Step-by-step explanation:
7x3=21 4x3=12 21÷12=9 3x3=9
Answer:
3Step-by-step explanation:
7 × 3 = (x × 3) + (4 × 3)21 = 3x + 123x = 21 - 123x = 9x = 9/3x = 37 × 3 = (3 × 3) + (4 × 3)
The answers are
A. 1/3 cm/s
B. 1/2 cm/s
C. 2/3 cm/s
D. 3/2 cm/s
Please help!!
Answer:C
Step-by-step explanation:
C. 2/3 cm/s
Find the value of x. Round to the nearest degree.
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Answer:
x° = 42°
Step-by-step explanation:
The mnemonic SOH CAH TOA reminds you of the useful relation ...
Cos = Adjacent/Hypotenuse
cos(x°) = 4.0/5.4
x° = arccos(4.0/5.4) ≈ 42.21°
The value of x is about 42.
Megan buys 3 bracelets and 3 necklaces. Each bracelet costs $3. Megan pays the cashier $40 and gets $4 in change. Which equation could be used to find the cost, n, of one necklace?
Answer:
8.3
Step-by-step explanation:
40-4=36
3x3=9
36-9=25
25/3 = 8.3
x=7
Step-by-step explanation: