Answer:
18x - 30
Step-by-step explanation:
in order to expand the expression, you need to use the distributive property to simplify 6(3x - 5).
first, distribute 6 to 3x, which is just 6 • 3x.
6 • 3x = 18xnow distribute 6 to -5, which is just 6 • -5.
6 • -5 = -30therefore, 6(3x - 5) expanded is 18x - 30 :) i hope this helps!! have a lovely rest of your day <3
Find the new amount given the original amount and the percent of change.
350 pages; 20% decrease
Answer:
272
Step-by-step explanation:
Which of the following represents a function
Answer:
The last one
Step-by-step explanation:
hi can you please help me with my work
Find the product. 7/10 X 3/6
Mel paid $15.75 for 6 greeting
cards. Some of the cards cost
$2.50 each, and some cost $3.25
each. Let x represent the number
of cards that cost $2.50 each,
and y represent the number of
cards that cost $3.25 each. This
situation can be represented by
the system x + y = 6 and
2.5x + 3.25y = 15.75. How many
of each type of card did Mei
purchase?
Answer:
Step-by-step explanation:
x + y = 6 -------------(I)
y = 6 -x
2.5x + 3.25y = 15.75 -------------(II)
substitute y = 6 - x in equation (II)
2.5x + 3.25*(6 - x) = 15.75 {Distributive property: a(b +c) =a*b + b*c}
2.5x + 3.25*6 - x * 3.25 = 15.75
2.5x + 19.5 - 3.25x = 15.75
2.5x - 3.25x + 19.5 = 15.75 {Combine like terms}
-0.75x + 19.5 = 15.75
-0.75x=15.75 - 19.5
-0.75x = -3.75
x = -3.75/-0.75
x = 5
Plugin x = 5 in (I)
5 + y = 6
y = 6 - 5
y = 1
(giving brainiest)
tell how you solved the question
Answer:
b
Step-by-step explanation:
volume = L x W x H
A. 4 x 7 x 8 = 224
B. 8 x 5 x 6 = 240
then you compare the number and see which one is greater
To find volume of a box you use the equation V= L*W*H
Box A-8*7*4= 224 in^3
Box B-6*5*8=240 in^3
Box b has a larger volume
Trina is cooking her favorite dish. She started with 51/2fluid ounces of vegetable oil. While she cooks, she uses a teaspoon
of vegetable oil, which is 1/6 of a fluid Ounce, x times. After she made the dish, Trina had at least 3 1/3 fluid Ounces of
vegetable oil left. Which statement best describes the number of times she used a teaspoon of vegetable oil?
Answer:
trina used a teaspoon of vegetable oil at most 13 times
Step-by-step explanation:
hope this helps :D
If you were to reflect point B across the y axis, which quadrant would it be located
Answer:
the answer is (6,2)
Step-by-step explanation:
Hope this helps
Subtracting fractions
Answer:
Step-by-step explanation:
Make sure the denominators are the same.
Subtract the numerators. Put the answer over the same denominator.
Simplify the fraction (if needed).
find the variance of 4 9 12 15 6 5
Answer:
18.7
Step-by-step explanation:
fhfhdhsuxudjdejdhdjdjx
If 8 x/2 = 2 3/8 x 4 ¾ find x
Answer:
x = 361/32
Step-by-step explanation:
I'm assuming that "8 x/2" is a mixed number.
A 95% confidence interval for the proportion of American adults who believe that regular exercise is important was computed to be [0.726, 0.780]. Given this confidence interval, which of the following values are reasonable estimates for the proportion of all American adults who believe that regular exercise is important (i.e., the population proportion).
a. 0.730
b. 0.765
c. 0.770
d. 0.795
Using confidence interval concepts, it is found that the reasonable estimate for the proportion of all American adults who believe that regular exercise is important is of 0.753.
What is a confidence interval?
It is the range in which a parameter is expected to be given a confidence level, has format (a,b), and the point estimate of the parameter is the mean between a and b.
In this problem, the interval is [0.726, 0.780], hence, the estimate is of:
(0.726 + 0.78)/2 = 0.753
You can learn more about confidence interval concepts at https://brainly.com/question/25779324
what is meaning of divya
PLZ HELY ILL MARK BRANILEST
Answer:
518
Step-by-step explanation:
14 x 74 = 1036 1036 / 2 = 518
( really need brainliest , hope it helps )
( first )
9(5r + 6s) if r = 7 and s =3
pls help due in one min
Daniel hiked
4
5
8
miles on Saturday and
4
1
2
miles on Sunday. How many miles did he hike in all?
A.
8
3
5
miles
B.
8
3
4
miles
C.
9
1
8
miles
D.
9
1
2
miles
Answer:
the answer isnt on there it would be 870 miles
Step-by-step explanation:
Answer:
c.
Step-by-step explanation:
WHICH NUMBER IS BIGGER? -10 OR -1 EXPLAIN *
Answer:
-1, because the number is a negative think like your in debt. which would you like to be in one dollar in debt or ten dollars in b\debt
Step-by-step explanation:
Pending Review Question 7
Alex borrowed $3500 from two banks. One bank charged a simple interest of 8% and another bank
charged a simple interest of 12%. If he paid a total interest of $332 for one year, find the amount that he
borrowed from each bank.
Answer:
$ 2,200 for 8%, $ 1,300 for 12%
Step-by-step explanation:
I=PRT
Let Bank 1 be x
332= x (8%) + (3,500-x) 12%
332= x (0.08) + (3,500-x) 0.12 change the percent to decimal
332= 0.08x + 420 - 0.12x
0.04x= 420-332
x= [tex]\frac{88}{0.04}[/tex]
x= 2,200 (Bank 1)
Bank 2= 3,500-Bank 1
Bank 2= 3,500- 2,200
Bank 2= 1,300
can anyone help me please?
Answer: I think it might be A bit Im not sure
Step-by-step explanation:
Answer:
i think its A not suree
Step-by-step explanation:
Question 15
Tessa made 14 out of 22 free throw attempts in the first half of practice and 22 out of 28 attempts in the second half of practice. What is her free throw average for the whole practice, written as a decimal? PLEASE HELP, I NEED IT QUICK!! 30 POINTS FOR IT
Answer:
0.71
Step-by-step explanation:
1st attempt = [tex]\frac{14}{22} = 63%[/tex]%
2nd attempt = [tex]\frac{22}{28} = 79%[/tex]%
To get the average of something, find the sum of the numbers and then divided the sum by the total number of values there are.
⇒ 63 + 79 = 142
⇒ 142 / 2 = 71%
⇒ 71% = .71
Which of the following is equal to the expression below?
(5-6)2
A. -54
1
В.
D. -512
The answer is 1/5^12.
Multiply the -6 by 2 to get 5^-12. Then, to make the exponent positive, move it to the denominator to get your answer, 1 over 5^12.
Which inequality describes the graph?
Answer:
I think it is B. -3x < - 30, but I might be wrong.
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
since you see that the line goes from 10 and does not include it it would be x<10
or because we have to flip sign when multiplying negative -3x>-30
so A
The Memorial baseball team purchased three times as many gloves as bats this year. If each glove cost $50 and each bat cost $30 and a TOTAL of $720 was spent on gloves and bats, Find the cost of one glove and one bat.
Answer:
$80
Step-by-step explanation:
A bicycle wheel makes five rotations. The bicycle travels 43.18 ft. Find the diameter of the wheel in inches. Use 3.14 for π.
Answer:
Step-by-step explanation:
x=5c, c=3.14d
x=5(3.14)d
d=x/15.7, x=43.18ft
d=43.18/15.7
d=2.75ft
Pls answer I'll give brainliest to whoever replies first
{ x is an odd whole number less than 9}
This may be more complicated than it looks but here are the odd numbers before nine:
1, 3, 5, 7
Hope this helps!
In parts (a)−(d) below, either use the information given to determine the distribution of the random variable, or show that the information given is not sufficient by describing at least two different random variables that satisfy the given condition. (a) X is a random variable such that MX(t) = e 6t 2 when |t| < 2. (b) Y is a random variable such that MY (t) = 2 2−t for t < 0.5. (c) Z is a random variable such that MZ(t) = [infinity] for t ≥ 5. (d) W is a random variable such that MW (2)
Answer:
a.) X ≈ N (0, 12)
b.) Y ≈ exp(2)
c.) The given distribution is not defined.
d.) Not a standard form of any distribution .
Step-by-step explanation:
Given - In parts (a)−(d) below, either use the information given to determine
the distribution of the random variable, or show that the information
given is not sufficient by describing at least two different random
variables that satisfy the given condition.
To find - (a) X is a random variable such that Mₓ(t) = [tex]e^{6t^{2} }[/tex] when |t| < 2.
(b) Y is a random variable such that [tex]M_{Y}[/tex](t) = [tex]\frac{2}{2 - t}[/tex] for t < 0.5.
(c) Z is a random variable such that [tex]M_{Z}[/tex](t) = ∞ for t ≥ 5.
(d) W is a random variable such that [tex]M_{W}[/tex](2) = 2
Proof -
a.)
As we know that the moment generating function of normal distribution is given by
Mₓ(t) = [tex]e^{ut + \frac{1}{2}t^{2} \sigma^{2}}[/tex]
Now,
Mₓ(t) = [tex]e^{6t^{2} }[/tex]
= [tex]e^{0(t) + \frac{12}{2} t^{2} }[/tex]
⇒μ = 0, σ = 12
Nd it is represented by
X ≈ N (0, 12)
b.)
Moment generating function of exponential function is given by
[tex]M_{Y}[/tex](t) = [tex]( 1 - \frac{t}{\theta})^{-1}[/tex]
Now,
[tex]M_{Y}[/tex](t) = [tex]\frac{2}{2 - t}[/tex] for t < 0.5.
= [tex]\frac{1}{\frac{2 - t}{2} }[/tex]
= [tex]\frac{1}{1 - \frac{t}{2} }[/tex]
= [tex]( 1 - \frac{t}{2} )^{-1}[/tex]
And it is represented by
Y ≈ exp(2)
c.)
Z is a random variable such that [tex]M_{Z}[/tex](t) = ∞ for t ≥ 5.
The given distribution is undefined.
d.)
[tex]M_{W}[/tex](2) = E([tex]e^{2w}[/tex] )
= [tex]\int\limits^{-\infty}_{\infty} {e^{2w} f(w) } \, dw[/tex]
= 2
It is not the standard form of any distribution.
Acellus
Find the total surface area of this cone.
Leave your answer in terms of 7.
25m
-- 8m
SA = [ ? ]m2
Enter
Answer:
the answer is 264
Step-by-step explanation:
Find the value of csc Θ if cos Θ = - 3/5 180° ≤ Θ < 270°
csc =
Answer:
csc Θ = - 5/4
Step-by-step explanation:
Consider a coordinate plane. As the range is from 180 to 270, we find that the triangle to be created should be in the 3rd quadrant.
cos Θ = - 3/5
5 ---> hypotenuse
- 3 --> adjacent side
Θ = angle is between the respective sides
We have to find the length of the remaining side, which would be the following:
- √5^2 - (-3)^2 = - √25 - 9
= - √16
= - 4
Remember csc Θ = Hypotenuse/Opposite = 5/-4 = - 5/4
Can you guys help me and answer this math question below
Answer:
point D
Step-by-step explanation:
4 would be the x axis so look horizontal, 5 is on y axis (y to the sky) so look vertically for 5
Answer: Point D
===============================================================
Explanation:
We start at the lower left corner, which is the location (0,0)
Then we move to the right four spaces to arrive at (4,0) which is where point L is at right now.
Lastly, we move 5 units up to get to (4,5) which is where point D is located.
Each (x,y) point can be thought of as an address so we can quickly communicate a point's location to someone, even if they don't have the visual in front of them. You can think of it like latitude and longitude. The game of battleship uses a similar concept, but it uses letters as the first coordinate.
