A and B are two events. Let P(A)=0.45, P(B)=0.2, and P(A and B)=0.65 Are the events are independent?
Answer:
[tex]P(A ) \times P( B) = 0.45 \times 0.2 \\ = 0.09[/tex]
They are not independent
Solve for the values of x:
(2x + 5)(5x - 2) = 0
either 2x + 5 =0
or 2x = -5
or x = -5÷2
again
5x - 2 = 0
or 5x = 2
or, x = 2/5
answer =
-5/2 or 2/5
9 divided by 272 plz help
Answer:
0.033 It doesnt reduce if thats what youre looking for
Step-by-step explanation:
Let's see
[tex]\\ \rm\Rrightarrow \dfrac{9}{272}[/tex]
[tex]\\ \rm\Rrightarrow 0.0330882352941[/tex]
Rounding
[tex]\\ \rm\Rrightarrow 0.0331[/tex]
Done!
Martika surfs with her friends at Virginia Beach. Her friend, Mark caught 8 waves out of 20 possible waves to ride in the shore. They plan to stay out in the water for 50 more waves. How many of the 50 waves do you predict Mark will catch?
Answer:
40 waves
Step-by-step explanation:
Prob (Mark catches waves) = Times waves caught / Total waves = 8 / 20 = 4 / 5 = 20%
Predicted waves out of 50 , caught = 4 / 5 or 20% of 50 = (4 / 5) x 50 = 40
Alternatively, multiplying numerator & denominator of wave catch probability ie 4 / 5 with 10 each , we get (4 x 10) / (5 x 10) = 40 / 50 . This also signifies 40 out of 50 waves are predicted to be caught.Help please gotta pass
Answer:
(59,93)
Step-by-step explanation:
please help me im struggling please show work. no links
Answer:
Raul is wrong because when he divided by 6 in stead of -6
correct awnser is... X= -12
Step-by-step explanation:
just change the second part to dividing by -6
3. Study the numerical expression 7 x (9-3). Which one of the following expressions is equivalent to this numerical expression?
A.Multiply 7 by the difference between 9 and 3.
B.Multiply 7 by 9, then subtract 3.
C.Subtract 3 from the product of 7 and 9.
D.Three less than the product of 7 and 9.
Answer:
B
Step-by-step explanation:
First step is to do whatever is in the parentheses: 9-3.
Then you will multiply 7 by that number; which will give you the answer.
B is correct because it does it that way.
find the value of x:)
Answer:
180 - 58 - 42 = x : sum of angles in a triangle add to 180
80 = x
The lengths of the sides of a triangle are in the extended ratio 5: 8.9. The perimeter of the triangle is 44 cm. What are the lengths of the sides?
The lengths of the sides of the triangle in cm are
Answer:
10cm, 16 cm, 18 cm,
Step-by-step explanation:
The lengths of the sides of a triangle are in the extended ratio 5: 8.9. The perimeter of the triangle is 44 cm.
Sum of proportion = 5 + 8 + 9
= 22
Length of side a
5/22 × 44 = 10 cm
Length of side b
8/22 × 44 = 16 cm
Length of side a
9/22 × 44 = 18 cm
The lengths of the sides of the triangle in cm are 10cm, 16 cm, 18 cm,
Please help me with this I’ll add you and give brainliest
Answer:
:)
Step-by-step explanation:
#11 is 78 degrees
#12 is 12.81
#13 is 75.4
What's the domain of this function graph?
Question 12 options:
A)
[0,∞)
B)
[1,∞)
C)
(–∞,∞)
D)
(–∞, 0)
The graph may continue to the left and right beyond what is viewed, but based on the portion of the graph that is visible, we can determine the domain as 1973 ≤ t ≤ 2008 1973 ≤ t ≤ 2008 and the range as approximately 180 ≤ b ≤ 2010 180 ≤ b ≤ 2010.
Matt bowled three strings. His scores were 220, 166, and 181. What was his average for the three strings?
Answer:
189
Step-by-step explanation:
To find his average, we will find the mean. This means we will add 220+166+181 to get 567. When finding the mean we divide the answer but the total amount of addends. In our case we have 3 so we divide 567 by 3.
567 divided by 3 = 189
I hope this helps :DDDDDDDDDDD
State and classify the restrictions on the variable as either removable or nonremovable and explain how you got that answer.
Please help, I have no idea how to do this and I'll give 70 points :)
We have 3 non-removable restrictions at x = -4, x = 1, and x = -1.
How to see if it is removable or non-removable?
Here we have the expression:
[tex]\frac{x - 3}{x + 4} /\frac{x^2 - 1}{x}[/tex]
This can be rewritten as:
[tex]\frac{x-3}{x + 4} *\frac{x}{x^2 - 1}[/tex]
We can rewrite the denominator of the second fraction as:
[tex]x^2 - 1 = (x - 1)*(x + 1)[/tex]
Then we rewrite the expression as:
[tex]\frac{x-3}{x + 4} *\frac{x}{(x- 1)*(x + 1)} = \frac{x*(x - 3)}{(x + 4)*(x + 1)*(x - 1)}[/tex]
So, none of the factors in the denominator is also in the numerator meaning that none of the restrictions is removable.
Then we have 3 non-removable restrictions at:
x = -4, x = -1, x = 1.
If you want to learn more about rational expressions:
https://brainly.com/question/1851758
#SPJ2
if you deposit $2000 in an account that pays 6.5% annual interest compounded continuously, what is the balance after three years
Answer:
429.34
Step-by-step explanation:
I know trust me
The length of a rectangle is 3 inches more than its width. The perimeter of the rectangle is 34 inches.
length = 3 + width
perimeter = 34
34 ÷ 2 = 17
width = x
3 +x + x = 17
3 + 2x = 17
2x = 14
x = 7
width = 7
find the product
8y^3(6y^2-7y+2)
Answer:
48y^5-56y^4+16y^3
Step-by-step explanation:
Answer:
Step-by-step explanation:−look at picture
Una recta atraviesa el punto (8, -1) y tiene una pendiente igual a 5/4.
Escribir una ecuación en forma pendiente intersección para esta recta.
Answer:
y = (5/4)x - 11
Step-by-step explanation:
Use y = mx + b as your starting point. This becomes y = (5/4)x + b.
Substitute 8 for x and -1 for y and solve for b:
-1 = (5/4)(8) + b, or
-1 = 10 + b.
Then b must be -11, and the desired equation is
y = (5/4)x - 11
Use the Pythagorean Theorem to solve for the missing side of the right triangles.
Can someone please help me on this?
Answer:
The surface area of the green prism is 2.5 times greater than the surface area of the blue prism
You mix the letters A, C, Q, U, A, I, N, T, A, N, C, E throughly. Without looking you select one letter. Find the probability of each event. Write your answer as a fraction.
1) P(T)
2) P(A)
3) P(vowel)
4) P(N)
Olaf's friend agreed to lend him some money to start a business. He has
been kind to offer him $25,000 with a low simple interest rate of 1%. If Olaf
doesn't make any payments for 5 years, how much interest will have
accrued? *
Answer:
ok so add the 25.00 and subtract by 5
Step-by-step explanation:
25-5=$ 20
what is the value of Q? PLEASE SOLVE ASAP!
Answer:
70
Step-by-step explanation:
half of a circle is 180 degrees
180 - 52 = 128
128 - 58 = 70
To check your answer
70 + 58 = 128
128 + 52 = 180
99 % of the trees in our neighborhood are eucalyptus trees. The town planning commission wants to get rid of some of these trees because they spread too quickly. However, the people in my neighborhood like the trees. The commission argues that their new eucalyptus tree removal plan will cut down so few eucalyptus trees that 98% of the trees in our neighborhood will be eucalyptus trees. If the plan only involves removing eucalyptus trees, what percent of the existing trees in my neighborhood would the plan remove
Answer:
50%
Step-by-step explanation:
Let the total number of trees be T and suppose that this is made up of eucalyptus trees E and other kinds of trees, O.
Then E+O=T, and since 99% of the trees are eucalyptus trees, EE+O=0.99.
Therefore
0.99E+0.99O=E
0.01E=0.99O
E=99O.
Suppose we reduce the number of eucalyptus trees by some amount x and that the remaining number of eucalyptus trees are now 98% of the total trees.
Then we would have E−x(E−x)+O=0.98.
Therefore,
0.02(E−x)=0.98O
0.02E−0.02x=0.98O
0.02x=0.02E−0.98O
x=E−50(0.98)O
x=E−49O
x=E−49(E99)
x=5099E≈0.505050...×E.
So we end up removing a little over half of the eucalyptus trees. EDIT: Forgot to mention - removing 50.505050...% of the eucalyptus trees means that we are removing 0.50505050....×0.99T which is 0.5T or half the trees in the neighborhood.
This is for the little kids what is the answer for 200-500
Answer:
-300
Step-by-step explanation:
what is the answer to the question 5/6 * 1/4 =
I am having a hard time figuring it out
Answer:
5/24
Step-by-step explanation:
[tex]\frac{5}{6} *\frac{1}{4} =\frac{5*1}{6*4} =\frac{5}{24}[/tex]
The bones of a mammal were discovered to have 3% as much Carbon-14 as they would have contained when
the mammal was alive. How long ago did the animal live? (Use k = 0.00012)
PLEASE HURRY! If the triangle on the grid below is translated by using the rule (x, y) right-arrow (x minus 2, y + 2), what will be the coordinates of A prime? On a coordinate plane, triangle A B C has points (negative 2, negative 2), (negative 2, negative 4), (2, negative 4). (–4, 0) (0, 4) (0, 0) (–2, 2)
Answer:
-4 pretty sure
Step-by-step explanation:
A line passes through the point (2,-5) and is perpendicular to the line with the
equation y = 1/5x+ 5. What's the equation of the line?
OA) y= -1/5x+1
B) y=1/5x+4
C) y = 5x - 2
OD) y = -5x + 5
Answer:
D) y = -5x + 5
Step-by-step explanation:
If two lines are perpendicular to each other, they have opposite slopes.
The first line is y = 1/5x + 5. Its slope is 1/5. A line parallel/perpendicular to this one will have a slope of -5.
Plug this value (#) into your standard point-slope equation of y = mx + b.
y = -5x + b
To find b, we want to plug in a value that we know is on this line: in this case, it is (2, -5). Plug in the x and y values into the x and y of the standard equation.
-5 = -5(2) + b
To find b, multiply the slope and the input of x (2)
-5 = -10 + b
Now, add 10 to both sides to isolate b.
5 = b
Plug this into your standard equation.
y = -5x + 5
This equation is parallel/perpendicular to your given equation (y = 1/5x + 5) and contains point (2, -5)
Hope this helps!
7×106 − 3.3×106 Answer In scientific notation
Answer:
3.7 × 10^6
hope this helps
have a good day :)
Step-by-step explanation:
Three boys were playing balls. Ben's ball bounced eight more times than Menard's . Menard's ball bounced half as many times as Diego's. Diego's ball bounced eight times. How many times did Ben's ball bounced?
Answer:
12 bounce
Step-by-step explanation:
Let :
Number of Menard's bounce = x
Ben's bounce = x + 8
Diego's bounce = 2x
If Diego's bounce = 8
Then ;
2x = 8
x = 8/2
x = 4
Ben's bounce = x + 8
Ben's bounce = 4 + 8 = 12
