"Triple a number is 18."
Show all work
Answer: 6
Step-by-step explanation:
3x = 18
Divide 18 by 3
x = 6
Your bill at a restaurant was for $36. You want to leave a 15 % tip. What would the tip amount be?
$5.40
$6.20
$4.17
$2.40
Help please
Suppose that A and B are two events in a sample space, S, which are independent and which have equal probability, p, of occurring. Suppose further that the probability that neither A nor B occurs is 0.81. Find the probability that both A and B occur.
Answer:
The probability that both A and B occur is P = 0.01
Step-by-step explanation:
Both events A and B have a probability p of occurring.
Then both events A and B have a probability (1 - p) of NOT occurring.
The probability that neither A or B occurs is equal to the product of the individual probabilities, and this is equal to 0.81, then:
(1 - p)*(1 - p) = 0.81
1 - 2*p + p^2 = 0.81
p^2 - 2*p + 0.19 = 0
We can solve this if we use Bhaskara's equation, the two solutions are:
[tex]p = \frac{-(-2) +- \sqrt{(-2)^2 - 4*1*0.19} }{2*1} = \frac{2 + - 1.8}{2}[/tex]
Then the two solutions are:
p = (2 + 1.8)/2 = 3.8/2 = 1.9
A probability must be a number between zero and one, and this is larger than one, so this solution can be discarded.
the other solution is:
p = (2 - 1.8)/2 = 0.2/2 = 0.1
This means that the probability that event A occurs is p = 0.1
And the probability that event B occurs is p = 0.1
The probability that both events occur is equal to the product of the individual probabilities, which is:
P = 0.1*0.1 = 0.01
50 PTS! PLEASE HELP me OUT!
Answer:
my thing is being weird so i cant really help. lo siento
i am bord
Step-by-step explanation:
A coaster is designed to hold 2 different drinks. Find the area of the coaster. Round your answer to the nearest hundredth
Answer:
mhm
Step-by-step explanation:
that is right
Tony drives 2 times the hours that Monique does. Tony and Monique drive for a total of 12 hours.
How long did each person drive?
Answer:
so the answer would be he drives 8 hrs she drives 4 which equals 12
Step-by-step explanation:12 divided by 2 is six so then u take away 2 from moniques hrs and add them to tonys and u get 8 for him and 4 for her
mike and sam are running laps. mike runs a lap in 5 minutes and sam runs a lap in 6 minutes. if mile and sam begin running at the same time, after how many minutes will they cross the starting line at the same time
answer:
they will never cross....
50 points! I will mark brainliest! Please only give me the correct answers! Random answers will be reported :)
Answer:
Q3. x = 14, y = 7Q4. x = 29, y = 3Step-by-step explanation:
Question 3
Anglesx + 45° = 59° (exterior angle)x = 14°SidesThe triangle is right isosceles (45°)
The legs have equal length
10 + 2y + 1 = 4y - 34y - 2y = 11 + 32y = 14y = 7Question 4
The figure is a square
Sides5y + 3y = 248y = 24y = 3AnglesThe angle between sides 24 and 24 is the right angle
x + (9y + 5) + x = 90°2x + 9(3) + 5° = 90°2x = 90° - 32°2x = 58°x = 29°Find the average rate of change of f(x)=9x^2-2 on the interval of [1,t]
Answer:
[tex]Rate = 9(t+1)[/tex]
Step-by-step explanation:
Given
[tex]f(x) = 9x^2 - 2[/tex]
[tex]Interval = [1,t][/tex]
Required
Determine the average rate of change
This is calculated using:
[tex]Rate = \frac{f(b) - f(a)}{b - a}[/tex]
Where
[tex][a,b] = [1,t][/tex]
So, we have:
[tex]Rate = \frac{f(t) - f(1)}{t - 1}[/tex]
Solve for f(t) and f(1)
[tex]f(t) = 9t^2 - 2[/tex]
[tex]f(1) = 9*1^2 - 2[/tex]
[tex]f(1) = 9 - 2[/tex]
[tex]f(1) = 7[/tex]
So, we have:
[tex]Rate = \frac{9t^2 - 2 - 7}{t - 1}[/tex]
[tex]Rate = \frac{9t^2 - 9}{t - 1}[/tex]
Factorize:
[tex]Rate = \frac{9(t^2 - 1)}{t - 1}[/tex]
Apply difference of two squares
[tex]Rate = \frac{9(t- 1)(t+1)}{t - 1}[/tex]
[tex]Rate = 9(t+1)[/tex]
Nhich describes the slope of a horizontal line?
a. positive
b. negative
d. undefined
C. Zero
Step-by-step explanation:
c.
The slope of a line is change in Y / change in X. The slope of a horizontal line = 0, not undefined. The slope of a vertical line = undefined.The points (6, -23) a
and
(11, r) lie on a line with slope 4. Find the missing coordinate r.
HELP ME PLEASE ITS DUE IN 2 HOURS I NEED HELPPP I WILL MARK BRAINLIEST HELPPP PLSSSSS
Answer:
[tex]r=-3[/tex]
Step-by-step explanation:
The line that passes through the two points (6, -23) and (11, r) has a slope of 4.
We want to determine the missing value of r.
We can use the slope formula:
[tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Let (6, -23) be (x₁, y₁) and let (11, r) be (x₂, y₂). The final answer should be 4. Therefore:
[tex]\displaystyle \frac{r-(-23)}{11-6}=4[/tex]
Simplify and evaluate:
[tex]\displaystyle \frac{r+23}{5}=4[/tex]
Multiply both sides by 5:
[tex]r+23=20[/tex]
Therefore:
[tex]r=-3[/tex]
Is an egg a fruit or a vegetable?
Answer:
fruit
Step-by-step explanation:
can you help me with my question Complete the following sentence: After we explained why we needed her in the play, she and joined our rehearsal A quaffed B. acquiesced C vengeance D. wreaked
Please Help Me ASAP.
Answer:
Parallel lines ALWAYS have the same slope
Step-by-step explanation:
The equations have unequal slopes, meaning they aren't parallel.
Find the circumference and area of the circle to the nearest hundredth. Use 3.14 for . Round to the nearest hundredth if necessary.
The circumference of the circle is about ____ cm.
The area of the circle is about ____ cm2.
Please answer!
Answer:
The circumference of the circle is about 166.42 cm.
The area of the circle is about 2205.07 cm².
Step-by-step explanation:
Diameter = 53 cm
Radius = r = 53cm/2 = 26.5 cm
π = 3.14
Circumference = C = 2 π r
C = 2(3.14)(26.5cm) = 166.42cm
The circumference of the circle is about 166.42cm.
Area = A = π r²
A = (3.14)(26.5cm)² = 2205.07 cm²
The area of the circle is about 2205.07 cm².
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Answer:
k
Step-by-step explanation:
can i have branliest answer for no reason and god bless u
Answer:
period
Step-by-step explanation:
please i’ve been stuck on this for days i need help
Answer:
x=12, y=9, z=7, w=3
Step-by-step explanation:
Please I’ll do anything I’m begging
Answer:
14√2
Step-by-step explanation:
This is a 45-45-90 triangle
Because both of the angles are the same all sides, but the hypotonouse are the same
this means that the other length is 14 too
we can use a²+b²=c² to solve
14²+14²=c²
=
392=c²
√392=c
√392=14√2
At the local bank 60% of the employees have 2 or more children. There
are 240 employees that have fewer than 2 children. How many
employees does the bank have?
A 96
400
D600
What's the answer 1/5 divided by 4
Answer:
1/20
Step-by-step explanation:
1/5 divided by four is 1/20
5x4=20
Answer:
1/20
Step-by-step explanation:
1/5 / 4
cross multiply but first write 4/1
4 * 5 IS 20
1* 1 = 1
1/20
If MN = x+4 and DE = 3x-2, find x. (More info in pic)
Answer: D) 10
============================================================
Explanation:
I'm assuming points M and N are midpoints of segments FD and FE respectively. If that's the case, then segment DE is twice as long compared to segment MN. We consider MN to be a midsegment.
So,
DE = 2*(MN)
3x-2 = 2*(x+4)
3x-2 = 2x+8
3x-2x = 8+2
x = 10
Solve the following inequality 5x+12+3x<36
Answer:
x<3
Step-by-step explanation:
5x+12+3x<36
First subtract 12 from both sides.
5x+3x<24
Next combine like terms on the left side (5x and 3x)
8x<24
Next divide 8 from both sides
x<3
Please help me on this :(
Answer:
300 & 200
Step-by-step explanation:
In the first slide, 45 is the "whole" and 15 percent is the "part." From there you cross mutiply and solve. You should end up with 300.
The same concept is appled in the second slide, just without the example to go from!
I need help with this please
the correct answer is A) 10x + 30
Answer:
The answer is "10x+30"
Step-by-step explanation:
whats the figurative language in scars to your beautiful explain
YOU WILL GET BRAINLIEST
Answer:
Scars to Your Beautiful Analysis
Alessia Cara uses figurative language to emphasize that our differences are what makes us beautiful and we should embrace it. She personifies that the world has possibilities to change its opinions on people with differences by saying "the world could change it's heart".
Step-by-step explanation:
is this it?
please help on this one.
Answer:
it's A
Step-by-step explanation:
look at the bolded line, it's after 4.4 which would mean z> 4.4
Answer:
A
Step-by-step explanation:
so we have a less than sign, which immediately tells us this going to be going left as 4.4 is greater. and obviously since the number is 4.4, the graph will have targeted that number. Hope this helps!
HELP PLEASE‼️‼️‼️ DUE TODAY ANSWER QUESTIONS 8-19 SHOW WORKKKKKK
Answer:
in which class are
Step-by-step explanation:
tell in in this number 9684574163
Guys I need help. How do I solve 3/4 + 5/8 + 2/3 - 1/6 ?
Answer:
15/8
Step-by-step explanation:
Literally find the common denomiator. That's the first step for any of these computational fraction problems.
Here are the following denomiators: 4,8,3,6. You notice that 24 is a multiple of all the numbers. Thus, our common denomiator is 24. Next we change each fraction based on our new denomiator
3/4 = 18/24
5/8 = 15/24
2/3 = 16/24
1/6 = 4/24
Now we do basic computation
18/24 + 15/24 + 16/24 - 4/24 = 45/24 = 15/8
A 2-yard roll of plastic wrap costs $3.36. What is the price per foot?
Answer:
$0.56 per foot
Step-by-step explanation:
2 yards= 6 feet
3.36/6= 0.56
Answer:
$0.56 per foot
Step-by-step explanation:
1 yd = 3 ft
2 yd = 6 ft
3.36/6 = 0.56
PLEASE HELP ILL GIVE BRAINLIEST
Step-by-step explanation:
Rabbit/Snake= 4
Rabbit/Not snake= 18
Not rabbit/Snake= 11
Not rabbit/Not snake= 26
Total snake= 15 (from 4+11)
Total not snake= 44 (from 18+26)
Total rabbit= 22 (from 4+18)
Total not rabbit= 37 (from 11+26)
Total total= 118 (from all totals added together [15+44+22+37])
Can anyone please help me? I'm struggling.
Answer:
I'm not saying this is right, but I'd try it...
Step-by-step explanation:
Look at the X.
It's positionined by a 5.
There's no h, but we can infer that the line has something to do with it.
Look at the line's points.
Try to find an equation.