Answer:
£29
Step-by-step explanation:
20% = 0.2
Take 145 times 0.2 = £29
So, he saves £29
A discrete random variable may take on only a countable number of distinct values such as 0,1,2,3,4,...
Definition of discrete random variable-Discrete random variables are usually (but not necessarily) counts. If a random variable can take only a finite number of distinct values, then it must be discrete. Examples of discrete random variables include the number of children in a family, the Friday night attendance at a cinema, the number of patients in a doctor's surgery, and the number of defective light bulbs in a box of ten.
Explanation-The probability distribution of a discrete random variable is a list of probabilities associated with each of its possible values. It is also sometimes called the probability function or the probability mass function.
Example:-
The cumulative distribution function for the above probability distribution is calculated as follows:
The probability that is less than or equal to is 0.1,
the probability that is less than or equal to 2 is 0.1+0.3 = 0.4,
the probability that is less than or equal to 3 is 0.1+0.3+0.4 = 0.8, and
the probability that is less than or equal to 4 is 0.1+0.3+0.4+0.2 = 1.
So, finally we can conclude that discrete random variables can only take a finite number of values.
To learn more about discrete random variables visit:
brainly.com/question/17238189
#SPJ4
5) To find the slope of the trend line below, Riley chose
the points (1, 35) and (2, 25).
What is the height, x, of the equilateral triangle?
Given:
The figure of an equilateral triangle with side length 14 in.
To find:
The height x of the equilateral triangle.
Solution:
We know that the height of an equilateral triangle is:
[tex]h=\dfrac{\sqrt{3}}{2}a[/tex]
Where, a is the length of side of the equilateral triangle.
It is given that the height of the triangle is [tex]x[/tex].
Putting [tex]a=14,h=x[/tex] in the above formula, we get
[tex]x=\dfrac{\sqrt{3}}{2}(14)[/tex]
[tex]x=\sqrt{3}(7)[/tex]
[tex]x=7\sqrt{3}[/tex]
Therefore, the height of the triangle is [tex]x=7\sqrt{3}[/tex].
HELP ME PLEASE AND PLEASE ATTACH THE ANSWER BELOW (NO LINKS!!)
Answer:
D
Step-by-step explanation:
Answer:
1885
Step-by-step explanation:
Volume = Base x Height
A. Yes
B.no
Answer: yes!!!!!!!
Jordan bought 3 bottles of water at the amusemen park. If the total cost of the water was $6, which equation could be used to find the cost of each bottle of water?
PLEASEEE HELP ME I NEED THIS FOR MY EXAMMM
Hopefully a bot doesn't answer this... Also, you do not have to write explanation.
Answer:
i do not know but i will let you know when i do
Step-by-step explanation:
Liz goes on holiday to South Africa
Liz wants to change £850 into south african rand
she wants to get as many 200 rand notes as possible
The exchange rate is £1=18.53 rand
Work out the greatest number of 200 rand notes that liz can get for £850
Answer:
82 notes
Step-by-step explanation:
The computation is shown below:
Given that
£1= 18.53 rand
and since Linz has £850 so he would get the equivalent of
= $890 × 18.53
= 16,491.7 rands
Now he wants the 200 rand notes so we considered it as the highest note
So, the greatest no of 200 notes would be
= 16,491.7 ÷ 200
= 82.45
= 82 notes
What do I do in order to solve this problem?
Suppose that $3500 is placed in an account that pays 16% interest compounded each year. Assume that no withdrawals are made from the account. Follow the instructions below. Do not do any rounding.
Tanya has a $50 gift card to spend on Amazon. She wants an airpod case cover for $12.
She also wants to buy some bracelets for $9.50 each. How many bracelets can she buy
without going over?
Answer:
She can buy 3 bracelets.
Step-by-step explanation:
$50 (Total price) - $12 (Airpod case) = $38
$38 - $9.50 (Bracelets) = $28.5
$28.5 - $9.50 = $19
$19 - $9.50 = $9.5
City A and City B are 540 miles apart on a map. The scale on the map is 1inch:60 miles. How many inches apart on the map should City A and City B measure. Explain how you would solve this problem. What would the final answer be?
Answer: 9 inch
Step-by-step explanation:
Given
Distance between city A and city B is 540 miles
Scale on the map is 1 inch: 60 miles i.e. 1 inch on the map is equivalent to 60 miles in the real situation
suppose the distance between city A and B on the map is x
[tex]\therefore \dfrac{1}{60}=\dfrac{x}{540}\\\\\Rightarrow x=\dfrac{540}{60}=9\ in.[/tex]
Therefore, the distance between city A and B is 9 in.
A charity is selling brooms to raise funds. Each box has 10 brooms. Each broom is sold for $ 15 . If the charity earns $ 50 profit for each box of brooms, how much does each box of brooms cost the charity, in dollars?
Answer:
Total cost= $100
Step-by-step explanation:
Giving the following information:
Each box has 10 brooms. Each broom is sold for $ 15
The charity earns $ 50 profit for each box of brooms.
First, we need to calculate the total revenue per box:
Total revenue per box= 10*15= $150
Now, the total cost:
Total cost= total revenue - total income
Total cost= 150 - 50
Total cost= $100
Write an equation of the line with a slope of -3 and a y-intercept of 0
Answer:
-3/9=07+90
Step-by-step explanation:
Answer: y = 0x+3 or y = 3
The slope is 0 and the y intercept is 3. So m = 0 and b = 3.
Plug those into y = mx+b to get y = 0x+3, and that simplifies to y = 3.
This graphs out a horizontal line that passes through the two points (0,3) and (1,3).
can someone please help me on Carnegie??
Answer:
First tell me what's Carnegie
Solve for x "Enter the value for x that makes this
true.
– 2 = – 1/2 ( - 12x – 10)
Tell whether x and y
are proportional. If so, find the constant of proportionality.
8 = xy
Answer:
Step-by-step explanation:
y is inversely proportional to x; if x increases, y decreases.
Without more info it is not possible to find the constant of proportionality. Recheck the original numerical values. Think: 8 = kxy. You need to know x and y to find the value of k.
Hello! Could y’all please explain why this is Decay and not growth?
Answer:
This is an Exponential Decay
Step-by-step explanation:
A = 1200(0.85)⁶
The above expression is an Exponential Decay because 0.85 is less than 1
The formula for Exponential Decay
= y = a (1 - r)^t
We equate both equation together
Where
a = 1200
1 - r = 0.85
t = 6
Solving for r
1 - r = 0.85
r = 1 - 0.85
r = 0.15
Converting to Percentage
r = 15% decay rate
The difference of c and 7 is less than or equal to 17.
| c - 7 | 《 17
- 17 《 c - 7 《 17
add sides 7
- 17 + 7 《 c - 7 + 7《 17 + 7
simplification
- 10 《 c《 24
Answer:
c - 7 ≤ 17
c ≤ 24
Step-by-step explanation:
The difference of c and 7 can be written as c - 7 or 7 - c.
Now, since c - 7 is less than or equal to 17, you need to add ≤ to imply that it's less than or equal to 17.
As always, write the 17 on the other side. Now you have an inequality.
If you just need the equation, it's c - 7 ≤ 17.
But if you want to solve for c, it would be c ≤ 24.
(bring the like terms together and isolate c.)
Grace used 1,000 milliliters of apple juice to make one batch of fruit punch. How many liters of apple juice does Grace need to triple the recipe?
Answer: 3 L
Step-by-step explanation:
Given
Grace uses 1000 mL of apple Juice to make one batch of fruit punch
If she triples the recipe, then the Juice used is also tripled i.e.
[tex]\Rightarrow 3\times 1000=3000\ mL[/tex]
In littres, it is [tex]3000\ mL=3\ L[/tex]
help please with math!
Answer:
1/2
Step-by-step explanation:
If you do this:
20:2=10
14:2=7
12:2=6
You get dimensions of smaller triangle which is a half from bigger one.
Answer:
scale factor is 1/2
Step-by-step explanation:
notice that the sides of ΔABC are one-half of the length of the sides 0f ΔDEF
Which cords are congruent
Answer:
A chord is a line segment with endpoints on the circle. le Conjecture tells us that the central angles determined by the congruent chords are equal in measure
Step-by-step explanation:
4.
Which equation is an identity?
A. 5y + 5 = 5y – 6
B. 8 – (6v + 7) = –6v – 1
C. 3w + 8 – w = 4w – 2(w – 4)
D. 6m – 6 = 7m + 9 – m
Answer: C. 3w + 8 – w = 4w – 2(w – 4)
(3w - w) + 8 = 4w - 2w -2(-4)
2w + 8 = 2w + 8
Step-by-step explanation:
Please help me FAST
Answer:
I believe it's either equation one or three. hope that helps :)
Given ^ABC~^EFD, find the value for x.
Answer:
4
Step-by-step explanation:
2x-3 = 5
2x = 8
x = 4
Hope this helps
I hope this helps you
in similar triangle sides are can be rate
ABC~EFD
AB/EF=BC/FD=AC/ED
5/2x-3=6/FD=4/9
9.5/4=2x-3
11.25+3=2x
2x=14.25
x=7.125
If you invested $2000 in an account that paid 8% annual Interest compounded quarterly, how much would the account be worth in 10 years?
Round to the nearest hundredth/cent.
Answer: A = $4,439.28
Rounded would be $4,439.3
Step-by-step explanation:
Help me, pretty please
Answer:
The surface area is 8
and volume is 12.
Let me know if wrong!! :))
Step-by-step explanation:
Simplify using i.
3+2i
———
6+5i
2
1 point
Shauna buys a full golf club set for $1,145.87 on a 6 month installment plan. If her monthly
payments are $245.82. How much is the finance charge?
Answer: $329.05
Step-by-step explanation:
Since she pays $245.82 monthly and she is paying for 6 months, the amount paid will be:
= $245.82 × 6
= $1474.92
Since she buys the full golf club set for $1,145.87, then her finance charge will be:
= $1474.92 - $1,145.87
= $329.05
The finance charge is $329.05
Add fractions with unlike denominators
1 1 - 12 A vehicle uses 8 gallons of gasoline to travel 2 miles. At this rate, how many miles can the vehicle travel per gallon of gasoline?
Answer:
4 gallons of gasoline per 1 mile
Step-by-step explanation:
Answer:12 miles per gallon.