A meteorologist says that there is a 50% greater chance of rain than no rain on Wednesday. What is the probability that it will rain on Wednesday?
Answer:
2/3
Step-by-step explanation:
The probability that it will rain on wednesday will be 0.75.
What is a expression? What is a mathematical equation? What is Probability?A mathematical expression is made up of terms (constants and variables) separated by mathematical operators. A mathematical equation is used to equate two expressions. Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem. The formula to calculate the probability of occurrence of an event 'A' can be written as -
P(A) = n(A)/n(S)
where -
n(A) = Number of outcomes favorable to event A.
n(S) = Total number of outcomes.
We have a meteorologist who says that there is a 50% greater chance of rain than no rain on Wednesday.
Assume that the probability that it will rain on wednesday be [x]. Now, we can write -
P[R] = P[N.R.] + 1/2
P[R] + P[R] = P[N.R.] + P[R] + 1/2
2 P[R] = 1 + 1/2
2 P[R] = 1.5
P[R] = 1.5/2
P[R] = 0.75
Therefore, the probability that it will rain on wednesday will be 0.75.
To solve more questions on Probability, visit the link below -
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Item 5
What is the length of the line segment with endpoints (10.8, −5.3) and (−15.6, −5.3) ?
Step-by-step explanation:
since both points are on the same horizontal line (same y coordinate), we can save the detour via the Pythagoras approach. we only need to look at the difference of the x coordinates to get the distance :
10.8 - -15.6 = 10.8 + 15.6 = 26.4
9(b - 1) = 63
what is b? show your work will give brainlyiest
Solve the rational equation x divided by 2 equals x squared divided by quantity x minus 2 end quantity, and check for extraneous solutions.
No solution
x = 0 and x = −2
x = −2; x = 0 is an extraneous solution
x = 0; x = −2 is an extraneous solution
The value of x in the equation [tex]\frac{x}{2} = \frac{x^2}{x - 2}[/tex] are x = 0 and x = -2
How to solve the rational expression?The expression is given as:
[tex]\frac{x}{2} = \frac{x^2}{x - 2}[/tex]
Cross multiply
[tex]x(x - 2) =2 * x^2[/tex]
Open the bracket
[tex]x^2 - 2x =2x^2[/tex]
Collect like terms
[tex]- 2x =2x^2 - x^2[/tex]
Evaluate the like terms
[tex]- 2x =x^2[/tex]
Rewrite as:
[tex]x^2 + 2x =0[/tex]
Factor out x
x(x + 2) =0
Expand
x = 0 or x + 2 = 0
Solve for x
x = 0 or x = -2
Hence, the value of x are x = 0 and x = -2
Read more about equations at:
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Describe the transformation of y=-2/x
Answer:
This transformation is known as a vertical stretch. This is the graph of a transformation of \begin{align*}y=x^2\end{align*}. The points are plotted from the vertex as right and left one and down one-half, right and left 2 and down two, right and left three and down four and one-half
I dont know this no links though
Answer:
ok do the sqare root of 54 and 24 round to the nearest tenth then multiply the 54 by 3 and the 24 by 4 then subtract them too
Step-by-step explanation:
what is 46+56+3+17+30+
Answer:
152
Step-by-step explanation:
46+56=102
102+3=105
105+17+130=152
How many solutions does the equation have?
Answer:
Infinitely many
Step-by-step explanation:
They both equal the same equation
Answer:
All real numbers are solutions.
Step-by-step explanation:
4(z−5)+2=4z−18
Step 1: Simplify both sides of the equation.
4(z−5)+2=4z−18
(4)(z)+(4)(−5)+2=4z+−18(Distribute)
4z+−20+2=4z+−18
(4z)+(−20+2)=4z−18(Combine Like Terms)
4z+−18=4z−18
4z−18=4z−18
Step 2: Subtract 4z from both sides.
4z−18−4z=4z−18−4z
−18=−18
Step 3: Add 18 to both sides.
−18+18=−18+18
0=0
I give brainlist pls help and don't use me for points
Answer:
search up different types of decimals and answer it to the same one that looks the same as the one on the paper .
Step-by-step explanation:
The area of the rectangle is (18r - 12) square inches. Write an expression that represents the length of the rectangle (in inches).
Answer:
L = (18r - 12)/W
Step-by-step explanation:
A = L * W
18r - 12 = L * W
(18r - 12) = L * W
(18r - 12)/W = L
a boat traveled 14 miles per hour downstream. the trip upstream was at a speed of 10 miles per hour. what is the speed of the boat in still water? what is the speed of the current
Answer:
(im not sure what the first question is asking me)
Speed of the current is 2 miles per hour
Step-by-step explanation:
The reason the current is 2 miles per hour is because it when going down stream they were going 14 miles per hour, going upstream they went 10. The difference is 4mph. So if the current pushes you 2mph when going down stream and holds you 2 mph when going up, the constant speed is 12mph then you add and subtract 2 becuase of the two directions youre traveling. hence 10mph and 14mph.
WILL GIVE BRAINLIEST
When you draw one marble from a bag, and don't put it back into the bag for the second draw, what kind of probability is it?
Answer:
it is a dependant event without placement
Step-by-step explanation:
you dont replace the marble so it is dependant. and without replacement is when you dont put it back in the bag
On a morning in December, Carl wakes up and checks the thermometer. He reads that it is -10°F. In two hours he checks and the temperature has risen 4°F. In another three hours the temperature has risen 7°F. At the last time, he checks the thermometer, what is the temperature? Also writes an addition equation that models this situation
Answer: 1 degree Fahrenheit
Step-by-step explanation:
The temperature starts at -10 degrees F, so if in two hours, the temperature has risen by 4 degrees, then the new temperature is -10 + 4 = -6 degrees F. 3 hours later, the temperature has risen another 7 degrees, so the new temperature is -6 + 7 = 1 degrees F. "addition equation" is ambiguous without knowing what class you are taking, but one such equation to represent the situation could be T = -10 + 4 + 7 = 1.
8/5 minus 1/6 their are four answers 22/15 43/30 1/6 or 48/30
Answer:
43/30
Step-by-step explanation:
what is the slope of a line that passes through (-3,-3) (-5-2)
Answer:
- 1/2Step-by-step explanation:
Given points:
(-3,-3) and (-5-2)Use slope formula:
[tex]m=(y_2-y_1)/(x_2-x_1)=(-2-(-3))/(-5-(-3))=1/-2=-1/2[/tex][tex]\\ \sf\longmapsto Slope=m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
[tex]\\ \sf\longmapsto m=\dfrac{-2+3}{-5+3}[/tex]
[tex]\\ \sf\longmapsto m=\dfrac{1}{-2}[/tex]
plz help me with this im so confused
Answer:
1.) x = -5
y = -4
Point to graph: (-5, -4)
2.) x = 0
y = -6
Point to graph: (0, -6)
3.) x = 5
y = 8
Point to graph: (5, 8)
Step-by-step explanation:
Substitute x for the given value, then find y.
1.) -2(-5)-5y = 30
10-5y = 30
-5y = 20
y = -4
2.) -2(0)-5y = 30
-5y = 30
y = -6
3.) -2(5)-5y = 30
-10-5y = 30
-5y = 40
y = -8
Answer:
y values are
-4
-6
-8
Step-by-step explanation:
Write the equation in slope intercept form. what are the slope and y-intercept? -3x - 10y = 7
how many 4-digit natural numbers are there?
Answer:
9000
Step-by-step explanation:
There are 4 numbers (any number from 0-9) in a 4-digit number and the starting number should be 1 or bigger than 1. The thousands place in a 4-digit number cannot be 0. The smallest 4 digit number is 1000 and the greatest 4 digit number is 9999. There are 9000 four-digit numbers in all
In a certain state, % of adults indicated that sausage is their favorite pizza. Suppose a simple random sample of adults in the state of size is obtained and the number of adults who indicated that sausage is their favorite pizza was . What are values of the parameters n, p, and x in the binomial probability experiment?
Literally, binomial probability represents an experiment which has two possible outcomes.
The values of the parameters n, p, and x are 25, 50% and 16 respectively
The representations in binomial probability are:
n represents the sample sizex represents the selected samplep represents the proportion that supports the experimentFrom the complete question, we have:
25 adults are selected as the sample size50% of adults indicated that sausage is their favorite pizza16 adults indicate that sausage is their favorite pizzaThe above highlights mean that:
[tex]\mathbf{n = 25}[/tex]
[tex]\mathbf{x = 16}[/tex]
[tex]\mathbf{p =50\%}[/tex]
Read more about binomial probabilities at:
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If (h + h) · (h. h) = 16, find the value of h.
— HELP ME PLEASEEEE
Answer:
h = 2
Step-by-step explanation:
I'm assuming your periods are multiplication signs.
(h + h) X (h X h) = 16
When adding two variables like the first set of parentheses, it would become 2h. When multiplying two like variables, you add the exponents. h is the same as writing h¹. So h¹ x h¹ gives you the answer of h².
So now your equation would look like:
2h X h² = 16
As above, when you multiply two like variables you would add the exponents. Also if any number are in front of the variable you would multiply those numbers. So you have 2h¹ x 1h² and that would be 2h³. If it had been
2h¹ x 2h², your answer would have been 4h³.
But so far you have 2h¹ x 1h² = 16
2h³ = 16
Dividing both sides by 2 you get
h³ = 8
To find h you have to take the cubed root of 8. What number multiplied by itself 3 times gives you 8? 2 x 2 x 2 = 8 2 x 2 = 4 and x 2 = 8.
h = 2
If you put this into the original equation you have:
(2 + 2) x ( 2 x 2) = 16
( 4 ) x ( 4 ) = 16
how can my questions be marked brainliest
Answer:
Step-by-step explanation:
If you want to give brainliest, you have to wait for two answers then pick the best answer to get brainliest by clicking the little crown icon on the bottom right.
If you want to get brainliest, try to give a really good answer to a question and if the person asking thinks you gave the best answer,you will receive brainliest.
Answer:
Questions are marked brainliest by whoever asked the question. That person chooses which answer they received is the most helpful/correct, and then awards that answer with the brainliest crown.
Step-by-step explanation:
I really need help from you brainy users.
I don't expect you to write out a whole entire paragraph but give me some tips regarding moving out of my parents house before I turn 18.
Answer:
well, i guess ill tell you the way i did it. i rented a storage space, rented my apartment and bought all of my furniture before moving out of my parents house so i was totally ready to move out. then, when the day came to move out, i planned the entire day beforehand, planned where my furniture would go and did all the planning before actually leaving. anything else you wanna know? ill answer any questions
Step-by-step explanation:
micheal jordan has 72 basketballs,84 baseballs and 48 gold balls and he wants to group them together so that he can donate them to schools in his hometoen.What is the largest number of identicsl groups he can put together without hahing any balls left over
The ratio of blue marbles to white marbles in a bag is 4 to 5. At this rate how many blue marbles are there if there are 15 white marbles
Answer:
Step-by-step explanation:
ratio of blue marbles to white marbles = 4:5
15/5=3
4x3:5x3
ratio if there are 15 white marbles= 12:15
denoting that 12 blue marbles would be there
1 peck= how many quarts
Answer:
9.30918
Step-by-step explanation:
x/2 - 3 + 4x^2 + x - 4
Answer:
=4x^2 + 3/2 x − 7
Step-by-step explanation:
Let's simplify step-by-step.
x /2 −3 + 4x^2 + x − 4
= 1 /2 x + −3 + 4x^2 + x + −4
Combine Like Terms:
= 1 /2 x + −3 + 4x^2 +x + −4
= (4x^2) + ( 1 /2 x + x) + ( −3+−4 )
= 4x^2 + 3 /2 x + −7
Write the equation of the line that passes through the points (0,0) and (7,8). Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal line
Answer:
PLS MARK BRAINLIEST
Step-by-step explanation:
m= y2 - y1/ x2 - x1( slope of a line)
m = 8 -0 / 7- 0
8/7 = m
m = 1.1
since m =y - y1/ x - x1
1.1 = y - 0/ x-0
1.1 = y/x(cross multiply)
y = 1.1 x
y -1.1 x = 0
or
y - 8/7 x = 0
help with the top one please?
Answer:
30 pages per hour.
Step-by-step explanation:
Okay so they read 1 1/2 pages per hour right. And you need 20/20 to make 1 hour right. So all you have to do is multiply 1 1/2 by 20 and you got your answer.
Factor completely
[tex]3x²+20x-7[/tex]
Please show all workings
Answer:
(x + 7)(3x - 1)Step-by-step explanation:
See the steps below:
3x² + 20x - 7 = 3x² + 21x - x - 7 = 3x(x + 7) - (x + 7) = (x + 7)(3x - 1)First Method: (By splitting the middle term)
We have to find p and q such that p+q = 20 and
pq = 3×(-7) = -21
Let us looks for the pair of factors of -21 such that their sum is 20 and product is -21.
20 = 21 - 1 and -21 = 3(-7)
∴ 3x² + 20x - 7 = 3x² + 21x - 1x - 7
= 3x(x + 7) -1(x + 7)
= (x + 7)(3x - 1)
Second method: (Using the factor theorem)
The value of (√5 + √2)2
(A) 7+ 2√5 (B) 1+ 5√2 (C) 7+2√10 (D) 7-2√10
[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]
Using identity :
[tex] {(a + b)}^{2} = {a}^{2} + b {}^{2} + 2ab[/tex][tex]( \sqrt{5 }{+ \sqrt{2{}^{} } } ) {}^{2} [/tex][tex]( \sqrt{5} ) {}^{2} + ( \sqrt{2} ) {}^{2} + 2( \sqrt{5} )( \sqrt{2} )[/tex][tex]5 + 2 + 2 \sqrt{10} [/tex][tex]7 + 2 \sqrt{10} [/tex]therefore, the correct choice is :
[tex] \mathrm{C.) \: \: 7 + 2 \sqrt{10} }[/tex][tex]( \sqrt{5} + \sqrt{2} {)}^{2} \\ [/tex]
[tex]by \: \: \: using \: \: \: the \: \: \: formula \: \: (a + b) ^{2} = {a}^{2} + 2ab \: + {b}^{2} \: \: we \: \: \: get \\ ( \sqrt{5} {)}^{2} + 2( \sqrt{5}) \: (\sqrt{{2)}} + ( \sqrt{2) }^{2} \\ = \sqrt{5} \times \sqrt{5} + 2 \sqrt{5 \times 2} + \sqrt{2} \times \sqrt{2} \\ = 5 + 2 \sqrt{10} + 2 \\ = 7 + 2 \sqrt{10} [/tex][/tex]
Answer:(C) 7+2√10