Answer:
I think A is the correct answer because -3+4 is 1 because 4 has greater sign + and +- gives result - thus,-3-7 gives - 21. I hope that it would be meaning ful for you ...
A single card is drawn from a standard 52 card deck.
Work out the probability of choosing the "4 of spades".
Give your answer in its simplest form.
Answer:
1/52
Step-by-step explanation:
We are given that
Total number of cards=52
Number of cards of 4 of spade=1
We have to find the probability of choosing the "4 of spades".
We know that
Probability, P(E)=[tex]\frac{number\;of\;favorable\;cases}{total\;number\;of\;cases}[/tex]
Using the formula
The probability of getting 4 of spade=[tex]\frac{1}{52}[/tex]
Hence, the probability of choosing the "4 of spades"=1/52
15. Which of the following sets of quantum numbers are allowed
a) n=1, 1 = 0 and m=0
c) n=1,1=0 and m = +1
b) n=2, 1 = 2 and m =+ 1
d) n = 2, 1= 2 and m = 0
Answer:
I'm not exactly sure but its 3 am here so it might be wrong but ima go with d
a+b=10, c+d=18, a+c=12, b+d= 16. find the value of A,B,C and D?
Answer:
1
5
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If a+b=8, b+c=10 and c+a=12, what is the value of a+b+c?
Answer
12
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Patrick Ivers, former mathematics & English instructor
Answered June 26, 2018
If a+b=8, b+c=10 and c+a=12, what is the value of a+b+c?
The puzzle is solved by defining each variable in terms of another variable & a number & then making substitutions. Begin by taking each sum to define one of the variables in terms of the other. (Different combinations are available, but I’ll follow the a,b,c order.)
a+b=8 becomes a=8-b
b+c=10 becomes b=10-c
c+a=12 becomes c=12-a
Now subtract two of the equations that contain the same variable. I’ll pick two that contain an a: c+a =12 & a+b=8. Subtracting the latter from the former eliminates the “a”s, leaving c-b=4. Adding b to both sides to isolate c gives c=b+4. From above we can take b=10-c to substitute for b in c=b+4, giving us c=(10-c) + 4). Simplify the right side to c=14-c, add c to both sides, giving 2c=14, & then divide both sides by 2 to obtain c=7.
Replace the c in b=10-c with 7 to
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Related Answer
Paul K. Young, Former PhD candidate in Mathematics
Answered September 28, 2016
If A = B and B = C, does A = C?
In mathematics = is assumed to be a transitive relationship. Transitivity means precisely what you stated: A = B and B = C implies A = C.
While it’s possible to use = to represent a non-transitive relationship this would be considered an abuse of notation. A ~ B or R(A, B) would be a better way to express the relation in this case.
Similar assumptions are made about operators like + and *. + is generally assumed to be commutative, whereas * can be used for noncommutative operations like matrix multiplication. E.g. A * B != B * A.
Equality in programming is another story entirely.
In many languages = is the assignment operator and == is the equality operator. Assignment is not transitive - it’s not even a relation.There are cases where the equality operator doesn’t define a transitive relation.
Katsuro ran 3 1/6 miles each day for 7 days. How far did he run in all?
Answer:
22 1/6
Step-by-step explanation:
Answer:
22 1/6
Step-by-step explanation:
Katsuro ran 3 1/6 each day for 7 days straight how far did he run in all? ANSWERS:
10 1/6 miles
10 1/2 miles
22 1/6
44 1/3
-6y -8 = -18
can anyone solve this
Answer:
-6y -8 = -18
18-8=6y
10=6y
y=10/6=5/3
Answer:
-6y - 8 = -18
+ 8 +8
-------------------
-6y = -10
----- -----
-6 -6
10 divided by 6 is 5/3
so y is 5/3
Help meeeeee please I have to do this
Hi there!
b=3·b=3b
This means:
1=3, 2=6, 3=9, 4=12, 5=15, 6=18, 7=21, 8=24, and 9=27.
Multiply by 3 everytime...
if b is 3, then the expression is is 3·b or 3b.
Final Result: 3b
As, we are given :
Minutes taken to fill Sylvia's bathtub with water = b minutes
Therefore,
Minutes taken to fill 3 bathtubs like Sylvia's bathtub = 3 × b minutes = 3b minutes
Hence, Minutes taken to fill 3 bathtubs like Sylvia's bathtub are 3b minutes.
what is the area of a rectangular field that has length of 2/3 of Mile and 3/4 of a mile
Answer:
2/3*3/4 = 1/2
Step-by-step explanation:
How do you find the mean?
Answer:
mean is when you add all the numbers together then divide by how many values there are
Step-by-step explanation:
ayo, i need help. willing to give brainliest to correct and first answer. it's for iready math bro.
Answer:
ay bro its 39 bc the q and r together they equal 39 plus you can also solve it with the calcliqiusnatine if you know what that is hope this helps!
Step-by-step explanation:
Answer:
29 degrees.
Step-by-step explanation:
The total of a triangle is 180 degrees.
If R = 27, that means that P and Q must make up 153 degrees.
The exterior and interior angle of Q will equal 180 degrees, as that is a straight line. Therefore, do 180 - 56 = 124, which is the degree measure of Q.
Lastly, do 153 - 124 to get 29 degrees for P.
Help!!!!!!!!!!!!!!!!!!!!!
It was 4:00 P.M. when John started mowing the lawn and it took him 50 minutes to finish. What time did John finish mowing the lawn?
Answer:
4:50 P.M.
Step-by-step explanation:
Sorry I don't know how to properly explain it but I just added 50 minutes to 4 o' clock to get the answer.
Hope this helps!
Maybe brainliest?
QUESTION 4
Let
et f(x)=
(2x+5,
if x<1
-3x+1, if x 1
Determine the value for f(3).
0-8
0 -12
O 16
O 3
O 11
Answer:
[tex]f(3) =-8[/tex]
Step-by-step explanation:
Given
[tex]f(x) = 2x + 5; x<1[/tex]
[tex]f(x) =-3x + 1; x >1[/tex]
Required
Determine f(3)
f(3) implies that x = 3.
We make use of
[tex]f(x) =-3x + 1[/tex]
Because x >1 (i.e. 3 > 1)
Substitute 3 for x in f(x) =-3x + 1
[tex]f(3) =-3*3 + 1[/tex]
[tex]f(3) =-9 + 1[/tex]
[tex]f(3) =-8[/tex]
plz help this is hard for me What is the area of this figure?
Answer:
21 m^2
Step-by-step explanation:
(5*2) + (6*2) - (1*1) = 21
How is 7.54÷4= 1.88
I got 1.88 with the remainder of 2
Answer:
I got 1.885 for the answer.
Maybe they wanted it rounded to just 2 decimal places.
Step-by-step explanation:
Answer:
7 .54/4=1.88
Step-by-step explanation:
In division we will see the relationship between the dividend, divisor, quotient and remainder. The number which we divide is called the dividend. The number by which we divide is called the divisor. The result obtained is called the quotient. The number left over is called the remainder.
Solve the equation.
-(1+7x) - 6(-7- x) = 36
a)
5
X=--
6
b)x= -7
c) x = 13
d) x = 5
Answer:
x=5
Step-by-step explanation:
esa es la respuesta correcta
Answer: it D x=5
Step-by-step explanation:
find the answer?
35-y=21
An office spends $375.00 per month on office supplies.
The manager wants the company to decrease office
supply costs by 16%. How much money would that save
each month?
Answer:
$51 saved.
Step-by-step explanation:
Well 12% of $425 is found by multiplying
(.12)(425) = $51 saved.
A ____ is a term with a number part but no variable. (WILL GIVE BRAINLIEST) (❁´◡`❁)
Answer: it’s a Constant!
Step-by-step explanation:
Find the mean for each set of data, weights of cats at a pet store in pounds: 5,4,10,7,6
Answer:
6.4
Step-by-step explanation:
add all numbers together then divide by 5
A restaurant wants to study how well its salads sell. If 10 of the salads sold were salads, how many total salads did the restaurant sell?
Answer:
Um... is this a joke it’s 10
Step-by-step explanation:
In the equation -3x - 9.6 = 20, what is the coefficient?
A. 20
B. -9.6
C. -3
D. -3x
Answer:
x=-3
Step-by-step explanation:
Jessica drank 3 1/2 glasses of water that was twice as much as her sister how many glasses did Jessica drink
Write the equation in slope-intercept form
of the line graphed below
Plz help i need to do number 12 i need the area and perimeter make sure you round to the nearest whole number
Answer:
Area= 24 and perimeter equals 12
Step-by-step explanation:
Answer:
I think the perimeter is 18mm
Step-by-step explanation:
i assume that the curve is 6mm I take 6+6+2+2=18
AB = AC = 25 and BC = 30. BD is perpendicular to AC . Find BD.
Answer:
15
Step-by-step explanation:
Sqr root of 225
Answer:24
Step-by-step explanation:
that's wrong, and I'm here to put the correct answer
take a look at this image, because ac=25 you set dc as x and ad as 25-x, then after that, you can form the equation root of 25^2-(x5-x)^2=root of 30^2-(x)^2 using the pythaeogrem theorem. After that you would get that x=18, then after that you just apply the theorem. 30^2-18^2 root which you would then get 24.
Given that R= 9x + 8y
Find y when x = 3 and R= 27
Answer:
1/3 or 0.3 (recurring)
Step-by-step explanation:
Let's substitute our numbers into the equation.
27 = 9x + 24 I multipled 8 by 3 in order to get 24, because x equals 3.
Now take away 24 leaving 9x on its own.
3 = 9x
Divide 9 to separate it from x.
3/9 = x
Simplify the fraction.
1/3 = x
The lifetime of a certain brand of battery is normally distributed with a mean value of 8 hr and a standard deviation of 0.8 hr when it is used in a particular cassette player.Suppose that two new batteries are independently selected and put into the player. The player ceases to function as soon as one of the batteries fails.
(a) What is the probability that the player functions for at least 6 hr?
(b) What is the probability that the cassette player works for at most 9 hr?
Answer:
Step-by-step explanation: o847434y3u3u44y4u5u5u5uu6
Please show work so i know how you got your answer..thank you and have a nice day<3
Answer:
V=whl=2·2.5·4=20
Step-by-step explanation:
Answer:
2880 feet³
Step-by-step explanation:
since the question is asking for cubic feet we know we're finding volume.
v=l·w·b
v=4·24·30
=2880
please help I'm a week behind.Use the given scale factor and the side lengths of the scale drawing to determine the side lengths of the real object.
Determine which postulate or theorem can be used to prove that
ΔSEA= ΔΡΕΝ.
Answer:
ASA
Step-by-step explanation:
ASA(Angle-Side-Angle) postulates states that if two angles and one included side of one triangle are congruent to the two angles and one included sides of the other triangle, then these triangles are congruent.