Answer:
The answer is A
Step-by-step explanation:
Variable- w=weeks
weeks=4
solution-w>9
-4w<-36
-4w/4<-36/-4
(36/4 =9)
w>9
(sorry if I didnt explain it you right but, A is the correct answer)
the number 4 was thrown 7 times in the first 50 throws. Using this fact, calculate how many times you would expect 4 to be thrown when this dice is thrown 3000 times?
will mark brainliest
Answer:
67
Step-by-step explanation:
I THINK THIS IS THE ANSWER
guys i at school rn and need help please thank xoxo
Answer:
Step-by-step explanation:
1. 30$ 2. 5$ 3. 60$ 4. 45$ trust
54 is divided by the sum if 5 and x the result is 3 find x
Answer:
x = 13
Step-by-step explanation:
54 divided by (13 + 5) = 3
Answer:
x = 13
Step-by-step explanation:
pls help! will mark brainliest!! Given isosceles trapezoid ABCD with AB=CD, BY=10.3, and AC=17.2. find YD
Answer:
YD=6.9
Step-by-step explanation:
In an isosceles trapezoid both diagonals have an equal length. Given this, since diagonal AC is equal to 17.2, diagonal BD must be equal to 17.2. Diagonal BD is made up of segments BY and YD, so the lengths of BY and YD must add to equal 17.2. Since BY is 10.3, the equation YD+10.3=17.2 can be used to find the value of YD. To solve this, subtract 10.3 from both sides of the equation to find that YD is equal to 6.9.
!?!?!?!?!?!?!?!?!?!?!?!?!?!?
Answer:
[tex]2 \sqrt{ - 2 } [/tex]
maybe?
On a field trip, there are 3 chaperones for every 20 students. There are 92 people on the trip.
How many chaperones are there?
How many children are there?
NEED HELP ASAPPP PLEASEEE
The following two-way table shows the distribution of high school students categorized by their grade level and book-type preference.
A 4-column table with 3 rows. Column 1 has entries junior, sophomore, total. Column 2 is labeled fiction with entries 20, 26, 46. Column 3 is labeled nonfiction with entries 22, 13, 35. Column 4 is labeled Total with entries 42, 39, 81. The columns are titled book-type preference and the rows are titled grade level.
Suppose a high school student is selected at random. Let event A = junior and event B = fiction. Are events A and B independent?
Yes, P(A) = P(A|B).
Yes, P(A) = P(B|A).
No, P(A) ≠ P(A|B).
No, P(A) ≠ P(B|A).
Answer:
No, P(A) ≠ P(A|B)
Step-by-step explanation:
Condition must be held in order to two events be independent of each other:
[tex]P(A B) = P(A)P(B) => P(A) = P(A|B)\\Or\\P(B) = P(B|A)[/tex]
[tex]P(A)=\frac{42}{81}\\P(B) =\frac{46}{81}\\P(A B) = \frac{20}{81}\\P(A|B) =\frac{P(A B)}{P(B)} = \frac{20}{46} \neq P(A) => P(AB) = \frac{20}{81} \neq P(A)P(B) = \frac{23}{81}\\\\P(B|A)=\frac{P(AB)}{P(A)}=\frac{20}{42} \neq P(B) => P(AB) = \frac{20}{81} \neq P(A)P(B)= \frac{23}{81}\\\\[/tex]
Note: (AB) means (A ∩ B)
The probability of P(A) is not equal to the probability of P(A|B) option third No, P(A) ≠ P(A|B) is correct.
What is probability?It is defined as the ratio of the number of favorable outcomes to the total number of outcomes, in other words the probability is the number that shows the happening of the event.
Two events must be independent of each other, condition must be maintained:
P(A and B) = P(A) × P(B)
The probability:
P(A) = 42/81
P(B) = 46/81
P(AB) = 20/81
P(A|B) = P(AB)/P(B) = 20/46 ≠ P(A) = 20/81 ≠ P(A)P(B) = 23/81
P(B|A) = P(AB)/P(A) = 20/42 ≠ P(B) = 20/81 ≠ P(A)P(B) = 23/81
Thus, the probability of P(A) is not equal to the probability of P(A|B) option third No, P(A) ≠ P(A|B) is correct.
Learn more about the probability here:
brainly.com/question/11234923
#SPJ2
Find the slope line (- 6, 1), (4, 8)
Answer:
The slope is [tex] \frac{7}{10} [/tex]
Step-by-step explanation:
☆Remember:
[tex]m = \frac{y_2 - y_1}{x_2 - x_1} [/tex]
☆We just plug in now!
[tex]m = \frac{8 - 1}{4 - ( - 6)} = \frac{7}{10} [/tex]
One smartphone plan costs $30 per month for talk and messaging and $8 per gigabyte of data used each month. A second smartphone plan costs $60 per month for talk and messaging and $3 per gigabyte of data used each month. How many gigabytes would have to be used for the plans to cost the same? What would that cost be?
I need help Pleases thanks.
Answer:
It is the last one
Step-by-step explanation:
To find the price for one you would divide 36.90 by 9 and to find the equation it is asking for you do the opposite which is 9p=36.90
Answer:
The answer is 9p=36.90
Step-by-step explanation:
Hope this helps!
(PLZ HELP) Determine if the table represents a proportional relationship. If so, write the equation for the function in the form y=mx.
Answer:
it is and y=4x
(i'm pretty tired so I can't include an explanation.)
Answer:
Yes it's a proportional relationship
Step-by-step explanation:
0x4=0
2x4=8
4x4=16
6x4=24
8x4=32
A pound is equal to 0.454 kilograms, how many kilograms does a 142-pound man weigh
Answer:
64.468
Step-by-step explanation:
Answer: 64.468 kilograms
Step-by-step explanation:
Chec
Match each data relationship with a type of correlation.
I've attached an image showing the data relationship.
Answer:
1) y does not change based on changes in x: no-correlation
2) y tends to increase as x increases: positive correlation
3) y tends to decrease as x increases: negative correlation
Step-by-step explanation:
1) y does not change based on changes in x: This means that there is no correlation between y and x since change in x doesn't affect y.
2) y tends to increase as x increases: This implies positive correlation because the output increases with increase in input.
3) y tends to decrease as x increases: This implies negative correlation because the output decreases with increase in input values.
Answer:
y tends to decrease as x increases: negative!
y tends to increase as x decreases: positive!
y does not change based on changes in x: no correlation!
Step-by-step explanation:
:))
Help me with this pks
Answer:
f=4
Step-by-step explanation:
-11f = 7(1-2f)+5
step 1 distribute what is outside of the parenthesis to the inside of the parenthesis
-11f=7-14f+5
step 2 combine like terms
-11f=12-14f
step 3 add 14 to each side
3f=12
step 4 divide each side by 3
f=4
What is the measure of x and y?
Answer:
x=80 and y=30
Step-by-step explanation:
HOPE THAT HELPS!!!!!!!
Oren is a wheelchair athlete competing in a 100-meter race.
His coach tracks his progress in the table below. The coach plans to
make a graph using these points. What will be the slope of the line?
What does the slope represent? Show your work.
Answer:
ok 120
Step-by-step explanation:
Please help me I'm failing...
Answer:
20,000
Decay
8%
Step-by-step explanation:
The inital value is the value at time = 0
The equation represents decay which is shown because as t approaches infinity the equation equals 0
It changes by 8 percent (1-.92)
If you have any questions please let me know.
Answer:
Initial value at t=0 is 20,000
Function represent decay with time
Changing 8%/year
Step-by-step explanation:
[tex]v(o)=20000(0.92)^{0}=20000[/tex]
I need help ASAP pls show ur work and ty
Answer:
Step-by-step explanation:
x + 0.7 = 1 - 0.2x
Add 0.2x to both sides
x + 0.2x + 0.7 = 1 - 0.2x + 0.2x
1.2x + 0.7 = 1
Subtract 0.7 from both sides:
1.2x + 0.7 - 0.7 = 1 - 0.7
1.2x = 0.3
Divide both sides by 1.2:
1.2x/1.2 = 0.3/1.2
x = 0.25
Answer:
X=0.25
Step-by-step explanation: x + 0.7 = 1 - 0.2x
Add 0.2x to both sides
x + 0.2x + 0.7 = 1 - 0.2x + 0.2x
1.2x + 0.7 = 1
Subtract 0.7 from both sides:
1.2x + 0.7 - 0.7 = 1 - 0.7
1.2x = 0.3
Divide both sides by 1.2:
1.2x/1.2 = 0.3/1.2
x = 0.25
when outliers are removed, how does the mean change?
I just checked with a calculator, and the mean stays the same.
So the answer is the first option! :D
You buy bananas and strawberries in the ratio of 3 : 4. Choose the expression for the number of bananas you buy when you buy n strawberries.
ANSWER: 3/4n
Answer:
[tex]\dfrac{3}{4}n[/tex]
Step-by-step explanation:
The ratio of bananas to strawberries is 3:4.
That means for every 3 bananas you buy, you buy 4 strawberries.
That also means that for every 4 strawberries you buy, you buy 3 bananas.
The number of bananas you buy is 3/4 of the number of strawberries you buy.
If you buy n strawberries, then the number of bananas you buy is
[tex]\dfrac{3}{4}n[/tex]
What is the solution for 2x - 6 = -2
Answer:
x=2
Step-by-step explanation:
2x - 6= -2
+6 +6
2x= 4
/2 /2
x=2
Help I need an awnser
Answer:
x=1
Step-by-step explanation:
Distribute 5/8 to x and -1/3 which will result you in 5/8x - 5/24
The equation now looks like this:
5/8x - 5/24= 5/12
Move -5/24 to the other side by adding 5/24 on both sides
5/8x - 5/24 + 5/24 = 5/12+5/24
(Multiply 2 and 5/12 on both the numerator and denominator which will result you to 10/12 add 5/24 which is 15/24)
Result:
5/8x=15/24
Multiply by 8/5 on both sides:
x=1
Which best describes the figure that is represented by the following coordinaton?
A(-3, 4), 8 (3, 4), (3,-2) and D(-3,-2)
Answer:
im pretty sure its c
Step-by-step explanation:
ill give a brainest no cap plz actually help
Step-by-step explanation:
Amount borrowed=400
interest rate=4%
Amount of interest after x years =0.04XxX400=$16x
Total to be paid back=400+0.04XxX400=400+16(1)
1) the amount of interest.if Franco pays back the loan in x=1 years is
16x1=$16
2) the amount of interest,if Franco pay back the loan in x=2 years is,
16x2=$32
3) the amount of franco will pay the lender after 2 years will be
400+(16x2)=400+32=$432
Expand.
Your answer should be a polynomial in standard form.
(3a^2 – 1)(-3a² + 5) =
Answer:-9a^4+18a^2-5
(3a
2
−1)(−3a
2
+5)
=3a
2
(−3a
2
+5)−1(−3a
2
+5)
=−9a
4
+15a
2
+3a
2
−5
=−9a
4
+18a
2
−5
Which equation models the statement shown?
y varies directly with x and y = 25 when r = 5.
Answer:
xy=5
Step-by-step explanation:
from the question, y varies directly with x and y
Then y ∝ xy
If we introduce proportionality sign we have
y=r xy
Where r= proportionality constant
Then if we substitute the given values
y = 25 when r = 5.
We have
y=r xy
25=5xy
Divide both sides by 5
xy=25/5
xy=5
Hence, equation that models the statement is xy=5
please help!! i don’t understand how to do this
Answer: A is the right angle
Step-by-step explanation:
a. 20^2 + 15^2 = 25^2
400 + 225 = 625
625 = 625
hope this helps :)
What is the value of the function y=3x – 1 when x = -1
Answer:
y= -4
Step-by-step explanation:
y=3x-1
y=3(-1)-1
y=-3-1
y= -4
Please help! And 20 points! :3
I need help with these 3 questions-
-3-||
Answer:
18. Its 2 meters.
19. Its 0.2 grams
20. Its 1,920
Step-by-step explanation:
When you convert 200 centimeters to meters its 2.
When you convert 2,000 milligrams in grams its 0.2
15% of 12, 800 is 1,920
Hope this helps:)
Can someone please help #2
Answer: x^15
Step-by-step explanation:
You multiply 5 times 3