Answer:
D, 18.
Step-by-step explanation:
1. We need to separate any value from x, so we must remove (-2/3) from the left side of the equation and place it on the right by dividing by (-2/3).
-2/3(x) = -12
2. We recognize that the negatives cancel each other out, so it cannot be A or B. Also, remember that dividing by a fraction or decimal will always increase the value of your answer. Therefore, the answer must be 18.
x = -12 times -3/2
x = 36/2
x = 18
In fact, weather on consecutive days depends on similar atmospheric conditions and therefore consecutive days are not independent events.With the weather forecast of the previous exercise, the probability that it rains over the weekend (either Saturday or Sunday) isA. 0.7516B. 0.3758 C. 0.2484D. Because consecutive days are not independent, we cannot compute P(rain both days) with the information given.
Question is incomplete :
The weather forecast for the weekend is a 46% chance of rain for Saturday and a 54% chance of rain for Sunday. If we assume that consecutive days are independent events, What is the probability that it rains over the weekend (either Saturday or Sunday)? Please use 3 decimal places.
In fact, weather on consecutive days depends on similar atmospheric conditions and therefore consecutive days are not independent events.With the weather forecast of the previous exercise, the probability that it rains over the weekend (either Saturday or Sunday) isA. 0.7516B. 0.3758 C. 0.2484D. Because consecutive days are not independent, we cannot compute P(rain both days) with the information given.
Answer:
0.7516 ;
D.) Because consecutive days are not independent, we cannot compute P(rain both days) with the information given.
Step-by-step explanation:
Let :
Saturday = A ; Sunday = B
P(A) = 0.46 ; P(B) = 0.54
If A and B are independent :
P(AuB) = P(A) + P(B) - P(AnB)
P(AnB) = P(A) * P(B) = 0.46 * 0.54 = 0.2484
P(AuB) = 0.46 + 0.54 - 0.2484
P(AuB) = 0.7516
If A and B are not independent, and how the weather on Saturday affect the weather on Sunday and vice versa. Hence, we cannot compute AuB
- 5x + 9y = - 32
-5x - 3y = 4
Answer: look at the picture
Step-by-step explanation: Hope this help :)
Find an equation of the ellipse that has center (-2,0), a minor axis of length 2, and a vertex at (8,0)
Answer:
Step-by-step explanation:
(-2,0) and (8,0) are horizontally aligned, so the ellipse is horizontal.
The equation of the ellipse is: [tex](x + 2)^2 / 16 + y^2 = 1.[/tex]To find the equation of the ellipse with the given information, we need to determine the major axis length and the equation's standard form.
The center of the ellipse is (-2, 0), and one vertex is at (8, 0). This means that the major axis is along the x-axis, and its length is equal to the distance between the center and the vertex, which is 8 units.
The minor axis length is given as 2 units. Since the minor axis is perpendicular to the major axis, it corresponds to the y-axis.
The standard form equation of an ellipse with a horizontal major axis is:
[tex]((x - h)^2 / a^2) + ((y - k)^2 / b^2) = 1,[/tex]
where (h, k) represents the center of the ellipse, and a and b are the semi-major and semi-minor axes' lengths, respectively.
Plugging in the given information, we have:
Center: (h, k) = (-2, 0)
Semi-major axis length: a = 8 / 2 = 4
Semi-minor axis length: b = 2 / 2 = 1
Substituting these values into the standard form equation, we get:
[tex]((x + 2)^2 / 4^2) + (y^2 / 1^2) = 1[/tex]
Simplifying:
[tex](x + 2)^2 / 16 + y^2 = 1[/tex]
To know more about ellipse:
https://brainly.com/question/20393030
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PLZ HELP!!!! WILL GIVE BRAINLIEST IF CORRECT! The social studies teacher wants to know whether the students in the entire school prefer a model United Nations activity or a student government activity. The teacher draws a random sample from the following groups:
All teachers in the school
All boys in each grade
All students in each grade
All students in the social studies club
Which group best represents the population he should take a random sample from to get the best results for his survey? (5 points)
Question 1 options:
1)
All teachers in the school
2)
All boys in each grade
3)
All students in each grade
4)
All students in the social studies club
3 is the answer
you're welcome
Step-by-step explanation:
4 is the answer since the question asks if the student would prefer so to get a better opinion you'd have to ask ever student in all grade
Someone please help :( ?????
(x-7)(2x + 1) = 0
Factoring
Answer:
x=7,x=-1/2
Step-by-step explanation:
so x-7=0 or 2x+1=0
x=7 or 2x=-1
x=7,x=-1/2
if my answer helps please mark as brainliest.
3 x minus 2 by 4 minus 2 X + 3 by 3 equals to 2 by 3 minus x find the value of x
Answer:
i love math
The ans is in the picture and the steps how i got it
(hope this helps can i plz have brainlist it will make my day :D hehe)
Step-by-step explanation:
You want to put a 3 inch thick layer of topsoil for a new 23 ft by 24 ft garden. The dirt store sells by the
cubic yards. How many cubic yards will you need to order? The store only sells in increments of 1/4 cubic
yards.
cubic yards
1
Suppose f(x) = x2 - x - 12, g(x) = x + 3, and h(x) = 6x - 1. Which of the following function operations are
three that apply.
A (g x h)(x) = 6x2 + 17x-3
B (n + 1)(x) = x2 + 5x - 13
C (f = g)(x) = x - 4
D (f - h)(x) = x2 - 7x-13
E (g- h)(x) = 5x - 4
о
PLEASE HELP!! I need it asap tysm
Answer:
D
Step-by-step explanation:
Answer:
the answer is D your welcome lol
Step-by-step explanation:
lol
The ratio of the number of girls to the number of boys in a classroom 6:5. After 16 girls left the room, the ratio became 2:3. How many girls were there at first?
Answer:
5/6 se eu não me engano.
Step-by-step explanation:
ajudareroesp
The measure of the second angle is 15 degrees more than the measure of the first angle the measure of the third angle is 45 degrees more than the measure of the first angle tine the measures of the interior angles in the triangle
Answer:
The measures of the three interior angles of the triangle are {40,55,85}.
Step-by-step explanation:
Let a = the measure of the first angle of the triangle.
Let b = the measure of the second angle of the triangle.
Let c = the measure of the third angle of the triangle.
The problem statement tells us that
(1) a = a
(2) b = a + 15 and
(3) c = a + 45
Now we (should) know that the sum of the three angles of a triangle is 180 degrees. Then we get
(4) a + b + c = 180 or by substitution we get
(5) a + (a + 15) + (a + 45) = 180 or
(6) a + a + 15 + a + 45 = 180 or
(7) 3*a + 60 = 180 or
(8) 3*a = 180 - 60 or
(9) 3*a = 120
Now divide both sides of (9) by 3 to get
(10) 3*a/3 = 120/3 or
(11) a = 40
Using (2) and (3) we get
(12) b = 40 + 15 or
(13) b = 55 and
(14) c = 40 + 45 or
(15) c = 55
Always check the answer. Use (4)
Is (40 + 55 + 85 = 180)?
Is (95 + 85 = 180)?
Is (180 = 180)? Yes
The measures of the three interior angles would be as follows:
40°,55°,85°
If we assume the first angle(∠1) to be [tex]x[/tex],
so, the second angle(∠2) [tex]= x + 15[/tex]
while the third angle(∠3) [tex]= x + 45[/tex]
Through the Angle Sum Property, we know:
∠1 + ∠2 + ∠3 = 180°
By applying the above expressions, we get
[tex]x + (x + 15) + (x + 45) = 180[/tex]°
⇒ [tex]3x + 60 = 180[/tex]
⇒ [tex]3x = 180 - 60[/tex]
⇒ [tex]x = 120/3[/tex]
∵ [tex]x = 40[/tex]°
Therefore,
∠1 = 40°
∠2 = 40° + 15°
= 55°
∠3 = 40° + 45°
= 85°
Thus, the measures of the angles are 40°,55°, and 85°
Learn more about "Angles" here:
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Round to the nearest ten thousand.
758,928
Answer:
760,000
Step-by-step explanation:
Mrs. Beads grouped her students two different waysFirst, she students into groups with the same number of students in each group No students were leftover. Then she put students into 6 group with the same number of students in each group with none leftover
A) 14
B) 16
C) 18
D) 24
E) 30
Enter the rule used to transform triangle ABC . If there is a dilation, dilate with respect to the origin. The rule used to transform triangle ABC(x,y)
Answer:
There is a dilation and the scale factor is 4
Step-by-step explanation:
The details that complete the question are:
△ABC
A(2, 5), B(6, 10), C(9, −1)
△A′B′C′
A′(0.5, 1.25), B′(1.5, 2.5), C′(2.25, −0.25)
Checking if there is dilation or not
To do this, we make use of the following scale factor (k) formula:
[tex]k = \frac{Original}{Image}[/tex]
Using A and A'
[tex]k = \frac{A}{A'}[/tex]
[tex]k = \frac{(2,5)}{(0.5,1.25)}[/tex]
Factorize the numerator
[tex]k = \frac{4(0.5,1.25)}{(0.5,1.25)}[/tex]
[tex]k = 4*\frac{(0.5,1.25)}{(0.5,1.25)}[/tex]
[tex]k = 4 * 1[/tex]
[tex]k =4[/tex]
Using B and B'
[tex]k = \frac{B}{B'}[/tex]
[tex]k = \frac{(6,10)}{(1.5, 2.5)}[/tex]
Factorize the numerator
[tex]k = \frac{4(1.5, 2.5)}{(1.5, 2.5)}[/tex]
[tex]k = 4*\frac{(1.5, 2.5)}{(1.5, 2.5)}[/tex]
[tex]k = 4 * 1[/tex]
[tex]k =4[/tex]
Using C and C'
[tex]k = \frac{C}{C'}[/tex]
[tex]k = \frac{(9, -1)}{(2.25, -0.25)}[/tex]
Factorize the numerator
[tex]k = \frac{4(2.25, -0.25)}{(2.25, -0.25)}[/tex]
[tex]k = 4*\frac{(2.25, -0.25)}{(2.25, -0.25)}[/tex]
[tex]k = 4*\frac{(2.25, -0.25)}{(2.25, -0.25)}[/tex]
[tex]k = 4 * 1[/tex]
[tex]k =4[/tex]
The above shows that k is 4 in all cases.
Hence, there is a dilation and the scale factor is 4
Classify the angle whose measure is 34°
Answer:
Acute angle
Step-by-step explanation:
Answer:
34° angle is an acute angle
asap pleaseeeee!!!!!
Step-by-step explanation:
This is oddly worded I understand. They are asking for the relationship between x and y. Your equation will start with y= You will need to form your equation in a way that will tell you how to find y in relation to x at any given term. I want you to learn and grow so i will just give an example. Take y=x-2 this would mean that y equals whatever x-2 is. If x were to equal 13, y would equal 11 because 13 minus 2 is 11. I hope this helps. I didnt want to give it all away because I wanted you to feel accomplished
Can anyone please help me with this!!! :(
Answer:
ano ba gagawin
parang Ang Dali pero ano gagawin dyan
Hi there!
For this problem, pretty much add all of them and then subtract with 22 to find how much Jen ran on Friday.
Monday+Tuesday+Wednesday+Thursday:
Simplify all terms and find all common denominators:
Common denominator: 8
[tex]4 \frac{3}{4} = 4 \frac{6}{8}[/tex]
[tex]5 \frac{1}{8} = 5 \frac{1}{8}[/tex]
[tex]6 \frac{1}{4} = 6 \frac{2}{8}[/tex]
Combine all terms:
[tex]4 \frac{6}{8} + 5 \frac{1}{8} + 6 \frac{2}{8} = 15 \frac{9}{8}[/tex]
Simplify 15 9/8 or else can’t subtract with 22.
[tex]9/8 = 1 \frac{1}{8}[/tex]
[tex]15 + 1 \frac{1}{8} = 16 \frac{1}{8}[/tex]
Turn 22 into 21 8/8...
Subtract: 21 8/8 with 16 1/8
[tex]21 \frac{1}{8} - 16 \frac{1}{8} = 5 \frac{7}{8}[/tex]
This means that 5 7/8 is how much mile Jen must run on Friday to reach her goal.
can anyone help with this?
which line is perpendicular to the line y=2x+3
Answer:
d
Step-by-step explanation:
Find the value of x in the parallelism. Please respond ASAP
Answer:
60=x+23(opposite angle of parallelogram are equal)
60-23=x
x=37 is answer.
in an equilateral triangle the sides are 14sqrt7. find the length of the altitude
Answer:
1
Step-by-step explanation:
3.02 x 10-1 =
A = 30.2
Answer:
3.02
x 10
-------
000
+302x
______
30.20
whats an"an amount, shared equally with 4 people "
well if that's in a math problem then its division. Because you are sharing equally.
Ill give you brainliest and 5 stars help plz
Answer:
D
Step-by-step explanation:
It is going from top left to bottom right, so we now it is a negative slope. This leaves us with B or D. When the y axis decreases 1 (aka (x,-1)) the x axis is at 4. Rise/run is 1/4.
The probability that Brian buys a sandwich is 0.1. The probability that Brian gets the bus is 0.6. Assuming the events are independent, what is the probability that Brian buys a sandwich and gets the bus?
Answer:
6% chance
Step-by-step explanation:
I think it would be 0.1 * 0.6 which is 0.06
Answer:
Step-by-step explanation:
answer.
Which of the following values
satisfies the inequality 9 < 2x + 7 <15
Answer:
1<x<4
Step-by-step explanation:
9<2x+7<15
9+−7<2x+7+−7<15+−7(Add -7 to all parts)
2<2x<8
2 /2 < 2x /2 /< 8 /2 (Divide all parts by 2)
1<x<4
Anyone know this answer? Will give brainliest if correct
Answer:
use photomath
Step-by-step explanation:
{(3,7),(5,9),(6,2),(8,7),(5,11),(4,8)} what are the input, or x-values, of the ordered pairs?
Answer:
[(3, 4, 5, 6, 8)]
Step-by-step explanation:
The x-values are the first value of each point
please help me with this
Answer: The last option, or D
Step-by-step explanation:
35x−35y+21