Answer:
272
Step-by-step explanation:
{ 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!
rob is saving to buy a new mp3 player. For every $15 he earns babysitting, he saves $7. On Saaturday, Rob erened $30 babysitting. How much money did he save. If he erend $30, he saved how many
Answer:
thanks for the points
Step-by-step explanation:
If Danica ran 12 meters in 6 seconds and Colby ran 15 meters in 5 seconds, who was faster?
O Colby
O Same Time
O Danica
Please help me I give Brainiest!!!!!!
Answer:
colby is faster
Step-by-step explanation:
he ran more meters in less time he is faster
Matching Equivalent Expressions
Quick
Check
Match each addition expression on the left with an equivalent expression on the right.
15 + 9
2(3 + 2)
8 + 10
2(5+6)
6 + 4
3(5 + 3)
10 + 12
2(4+5)
Answer:
15+9 is 3(5+3)
8+10 is 2(4+5)
6+4 is 2(3+2)
10+12 is 2(5+6)
9(5r + 6s) if r = 7 and s =3
Pls answer I'll give brainliest to whoever replies first
If 13 candy bars cost $19.76, how much do 20 candy bars cost?
Answer:
$30.40
Step-by-step explanation:
to find out how much 20 candy bars would cost, first, we have to find out how much 1 candy bar costs. we do this by dividing $19.76 by 13.
$19.76 ÷ 13 = $1.52
so now we know that one candy bar costs $1.52. now, we multiply this value to 20, to know how much 20 candy bars cost. therefore, we get:
20 × $1.52 = $30.40
Mira's six test scores are given. What is the
positive difference between the mean of the
scores and the median of the scores?
86, 72, 92, 62, 99, 93
Answer:
Step-by-step explanation:
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.
a, b real numbers and
1 is less than a is less b is less than 4
How many different integer values is the sum of a + b?
Answer:
1 < a < b < 4
so 'a' could be 2 and 'b' could only be 3
2 + 3 = 5
Step-by-step explanation:
hi can you please help me with my work
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
A group of campers walked 4 2/3 miles along a hiking trail. Another group of campers walked 1/4 of that distance with the first group before turning off onto another trail. How many miles did the two groups of campers walk with one another ?
Answer:
14 / 12 miles or 1 1/6 miles
Step-by-step explanation:
A group of campers walked 4 2/3 miles along a hiking trail.
Distance = 4 2/3 miles
Another group of campers walked 1/4 of that distance with the first group before turning off onto another trail.
That is; 1/4 of 4 2/3 miles
How many miles did the two groups of campers walk with one another ?
This is obtained by solving 1/4 of 4 2/3 miles
Converting 4 2/3 to an improper fraction;
4 2/3 = 14 / 3 Miles
1/4 of 14 / 3
1 / 4 * 14 / 3
= 14 / 12 miles or 1 1/6 miles
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.
Anybody know how to do lowest terms and can teach me how to get the answer to lowest terms questions?
Answer:
Step-by-step explanation:
6/9+x=7/10
x=7/10-6/9
when adding fractions both denominators must be equal, we’ll make them 90
x=(7/10)(9/9)-(6/9)(10/10)
x=63/90-60/90
x=3/90, the greatest divisor of 3 and 90 is 3 so divide both the numerator and denominator by 3
x=(3/3)/(90/3)
x=1/30
Tim's goal is to practice playing drums for 300 minutes this week. On Sunday he practiced for 127 minutes. On Tuesday he practiced for 38 minutes. How many more minutes does Tim need to practice in order to meet his goal?
Answer:
135 minutes
Step-by-step explanation:
The total number of minutes Tim needs to practice is 300 minutes.
We subtract the number of minutes he has already finshed:
300 - 127 - 38 = 135 minutes
Answer:
138 minutes
Step-by-step explanation:
so all we have to do is subtract the times he practiced for on sunday and tuesday by 300
300-127-38=138
he still has to practice 138 minutes to reach his goal
What is the percent of increase from 75 to 87?
Answer:
16 percent
Step-by-step explanation:
75 is the old value and 87 is the new value. In this case we have a positive change (increase) of 16 percent because the new value is greater than the old value.
Find the product. 7/10 X 3/6
the intersection of parallel lines b and c and transversal line d form several special angle relationships. which pairs of angles and vertical angles?
Answer:
I think angel 2 and angle 3
and angel 5 and angle 8
are the pairs of vertical angle.
hope it helps.
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
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
SOMEBODY ANSWER PLZ ASAP
Answer:
I think false
Step-by-step explanation:
[tex](4+\sqrt{-7}) (3+\sqrt{-7})[/tex]
Which family lives the farthest from Disneyland?
Family A:
Family D
y = 95 - 55
Distance
50
Family B:
40
Family B lives 120 miles from Disneyland
and drives 60 mph.
30
Family
20
Hours
Distance
from
Disneyland
SO
10
0
1.5
0
0.2 0.4 0.6 0.8
112 Time (hours)
Family A
O Family B
O Family C
Family D
PLEASE HELP!!!! ILL GIVE YOU 10 POINTS IF YOUR ANSWER IS CORRECT!!!!
How do find the value of "y = x - 4 ; y = -20"?
Answer:
x=-16
Step-by-step explanation:
y=-20
y=x-4
-20=x-4
x=-16
What is the total volume of Diet
Coke in this six pack? Each can
is 5 inches tall and has a diameter
of 3 inches.
a. 47.1 in 3
b. 141.3 ins
c. 35.3 in
d. 211.95 in3
Answer:
so what was it because i need help NEVER MIND ITS 211.95
Step-by-step explanation:
Answer: 211.95 in3
Step-by-step explanation:
Write the product as the product of a whole number and a unit fraction for 3 x 2/4, 2x3/5, 4x2/3
Multiply
5x7/10, 4x3/4,3x8/12
Multiply. Write the product as a mixed number
3x1 1/8,2x2 1/5, 8x1 3/5
Answer:
15125265
Step-by-step explanation:
what is meaning of divya
Landmark buys $300,000 of SRW Company's 8%, 5-year bonds payable, at par value on July 1. Interest payments are
made semiannually on December 31 and June 30. The journal entry Landmark should make to record interest earned at
year-end December 31 is:
Answer:
Debit Cash $12,000
Credit Interest Revenue $12,000
Step-by-step explanation:
Based on the information given in a situation where Landmark bought $300,000 of SRW Company's which includes 8% bonds payable which means that if the Interest payments are
made semiannually on December 31 as well as on June 30. The journal entry that Landmark should make to record the interest earned at year-end December 31 is:
Debit Cash $12,000
Credit Interest Revenue $12,000
($300,000*8%*6/12)
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:
