Answer:A
Step-by-step explanation:
the sum of a number and 6 is 3
Answer:
x + 6 = 3
-3 + 6 = 3
Step-by-step explanation:
x + 6 = 3
x + 6 - 6 = 3 - 6
x = -3
What are the graphs to these?
Answer:
The graph is in the image
Step-by-step explanation:
[tex]y = \frac{3}{5} x -3\\\\2x -y =-4\\\\y=-6,\:x=-5\\[/tex]
What is 1/5 miles in units to 1/65 hours
Answer:
13/65 miles in 1/65 of an hour, I believe is the answer you're looking for. Hope this helped!
Step-by-step explanation:
Find an expression for the number of colored border tiles needed for any N x N square center.
Answer:
8N - 4 border tiles.
Step-by-step explanation:
There are 4 border tiles in each corner and between the tiles there are N-2 tiles along the 4 sides.
So the number of border tiles
= 4+ 4(N - 2)
= 4 + 4N - 8
= 8N - 4.
Select the relationship that does represent a function
the 4th one is a relationship that is a fuction I think
Answer:
4th image
Step-by-step explanation:
the others cannot be functions since one domain cannot be in two ranges
What’s the answer to 1.9m + 14 = 2m?
Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{m = 140}}}}}[/tex]
Step-by-step explanation:
[tex] \sf{1.9m + 14 = 2m}[/tex]
Move 2m to right hand side and change it's sign
Similarly, move 14 to left hand side and change it's sign
[tex] \dashrightarrow{ \sf{1.9m - 2m = - 14}}[/tex]
Collect like terms
[tex] \dashrightarrow{ \sf{ - 0.1m = - 14}}[/tex]
Divide both sides by -0.1
[tex] \dashrightarrow{ \sf{ \frac{ - 0.1m} { - 0.1} = \frac{ - 14}{ - 0.1}}} [/tex]
Calculate
[tex] \dashrightarrow{ \sf{m = 140}}[/tex]
Hope I helped!
Best regards! :D
What number belongs in the box to make the equation true? 2 7 3 5
Please Help!! Angles A and B are complementary. If the measure of angle A=3x-8 and measure of Angle B =5x+10, what is the measure is each angle?
Answer:
Step-by-step explanation:
3x - 8 + 5x + 10 = 90
8x + 2 = 90
8x = 88
x = 11
3(11) - 8 = 33 - 8 = 25 for <A
5(11) + 10 = 55 + 10 = 65 for<B
If (42)P = 414, what is the value of p?
7 8 12 16
Answer:
c
Step-by-step explanation:
Find the missing exponent
Answer:
-6
Step-by-step explanation:
When an exponent is outside and inside the parenthesis you need to add them to get rid of the the parenthesis. The answer is -6 because -6*2 is -12.
Hope this helps. If you have questions put them in the comments.
Answer:-6
Step-by-step explanation:
When an exponent is outside and inside the parenthesis you need to add them to get rid of the the parenthesis. The answer is -6 because -6*2 is -12.
While riding her bike to the ocean and back home 6 times, Mandi timed herself at 52min, 54min, 53min, 51min, 53min, and 43min. She had set a goal of averaging 51 minutes for her rides. How many minutes will she need to spend on her seventh ride to attain her goal?
Answer:
306 min
Step-by-step explanation:
Jamie invests part of $10,000 at 9% annual interest and the rest at 8%. If his annual income from
these investments is $860, how much does he invest at 8%?
Answer:
$4000
Step-by-step explanation:
Assuming a = money invested at 9%
Assuming b = money invested at 8%
then we can form am equation from the question given
1) a + b = $10000, also
0.09a + 0.08b = $860 -> multiply by 100
2) 9a + 8b = $86000
Next we try to solve both equations simultaneously. We multiply both the left hand side and the right hand side of the first equation by 8. We have
3) 8a + 8b = $80000, now we subtract 3 from 2
9a + 8b = $86000
-8a - 8b = -$80000
a = $6000.
Then, we plug this in any of the first 2 equations, to get b
9 * $6000 + 8b = $86000
$54000 + 8b = $86000
8b = $86000 - $54000
8b = $32000
b = $32000/8
b = $4000.
Therefore, he invested $4000 at 8%
Solve the literal equation 5a + 10b = 2b - 4a for a.
Answer:
A=-8b/9
Step-by-step explanation:
During its first year in business, Alice's restaurant shows a loss of $12,000. During its second year, the restaurant makes a profit of $23,200, and during its third year, the restaurant shows a loss of $1,200. What is the net profit of the restaurant during its first three years in business?
Answer:
$10,000
Step-by-step explanation:
-12,000+23,200-1,200= 10,000
The profit of the restaurant during it's first 3 years is 9800 dollars.
What is profit and loss ?When the amount of money we get is more than what we have invested is more we have profit and when the amount of money we get is less than what we have invested we have loss.
Let us assume Alice start with a net profit or or of 0 dollars.
During its first year in business, Alice's restaurant shows a loss of 12,000 dollars.
∴ He is in loss of (0 - 12000) dollars which is
= - 12000 dollars.
During its second year, the restaurant makes a profit of 23200 dollars.
∴ His net profit is
= ( -12000 + 23000 ) dollars.
= 11000 dollars.
During its third year, the restaurant shows a loss of 1200 dollars so his ne profit is
= ( 11000 - 1200 ) dollars
= 9800 dollars.
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Seven more than three times a number is 25. What is the number?
Which inequality is true?
O A n-3>1
B. 9n> 27
c. 9/3n> 1
O D. N+7<10
Answer:
c.
Step-by-step explanation:
i already know the answer, its increasing by 4 but i dont know how to write the answer.
Answer: m+3
Step-by-step explanation:
Since the jump from each number increases by 3, you would write m+3, since m is indicated in the pattern.
Sally hopes to buy a 10 - kayak for $15,000. Describe all the numbers that when round to the nearest hundred are 15,000
Answer:
All the numbers ranging from 14,500 to 15444 would be rounded to 15000
Step-by-step explanation:
All the numbers ranging from 14,500 to 15444 would be rounded to 15000.
How this is possible.
1) all the numbers from 0-4 are not counted as the next number when rounded off.
2) all the numbers from 5-9 are counted as the next number when rounded off.
Example Suppose we have numbers from 15- 19.
These numbers can be rounded off to 20
But numbers from 10-14 would never be rounded off to 20 instead they are rounded as 10.
Same happens in the hundreds case.
If we have numbers from 450 - 499 they can be rounded as 500
And numbers from 400 - 444 cannot be rounded as 500 but the number 445 may be rounded as 450 . When we carry 5 from units place and replace it as 450 then again 450 can be rounded to 500.
Same happens with 15000 but when are rounding nearest hundred not ten.
Thus all the numbers ranging from 14,500 to 15444 would be rounded to 15000.
Express the following vector in the form v vi+V2j+ v3k 3u -v if u (3,5,-8) and v (2,-5,7)
Answer:
7i+20j-31kStep-by-step explanation:
Given the vectors u (3,5,-8) and v (2,-5,7), they can also be written as;
u = 3i+5j-8k
v = 2i-5j+7k
To express the vector 3u - v in vector form, first let us find the vector 3u;
3u = 3(3i+5j-8k)
3u = 3(3i)+3(5j)-3(8k)
3u = 9i+15j-24k
Subtract v from the resulting vector.
Since v = 2i-5j+7k
3u - v = 9i+15j-24k - (2i-5j+7k)
3u-v = 9i+15j-24k -2i+5j-7k
collect the like terms
3u-v = 9i-2i+15j+5j-24k-7k
3u-v = 7i+20j-31k
Hence the vector 3u-v in the form v = vi+V2j+ v3k is 7i+20j-31k
400 thousands + 600 thousands in standard form
Answer: 1 million
Step-by-step explanation:
Answer:
1,000,000
Step-by-step explanation:
Step 1:
400,000 + 600,000 = 1,000,000
Answer:
1,000,000
Hope This Helps :)
Anjali spent half of her weekly allowance
at the movies. To earn more money her
parents let her weed the garden for $10.
What is her weekly allowance if she ended
with $19?
John has a 4 litre bottle of water. One mug holds one half of a litre of water. Jane drinks 3 mugs of water, how many mugs would the remaining water fill
Answer:
the answer is 3.5
Step-by-step explanation:
1. the total is 4
2.each mug = .5 of a litre
3.jane drinks 3 mugs which=1.5
4.she drinks 1.5 litres which is 3.5 of the whole bottle
5.so the remaining will be 3.5 which is what remains after she drank 1.5 litres of the whole bottle
Need help thank you!
Answer:
$216
Step-by-step explanation:
We know that the cost of an outfit for one team member is 10 + 26 + 18 = $54, therefore, the cost of outfits for all 4 team members will be 54 * 4 = $216.
Help i dont understand this someone help me pls :(
Answer:
10
Step-by-step explanation:
Consider the composite function (g (x) ) = StartRoot StartFraction 1 Over x squared minus 3 EndFraction EndRoot. If g(x) = x2 – 3, what is f(x)?
Answer:
C ON EDGE 2020
The function f(x) = [tex]\sqrt{1/x}[/tex] if, F[g(x)] = [tex]\sqrt{(1/x^2 - 3)}[/tex], g(x) = x² - 3, so option C is correct.
What is a function?
The function is a relationship between a set of potential outputs and a set of possible inputs, where each input has a single relationship with each output. This means that if an object x is present in the set of inputs (also known as the domain), then a function f will map that object to exactly one object f(x) in the set of potential outputs (called the co-domain).
Given:
F[g(x)] = [tex]\sqrt{(1/x^2 - 3)}[/tex]
g(x) = x² - 3
Put the value of g(x) in all the options and check whether it is equal to F[g(x)] as shown below,
Put it in option 3,
f{g(x)} = [tex]\sqrt{(1/x^2-3)}[/tex]
Thus, f(x) = [tex]\sqrt{1/x}[/tex]
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Let A and B be symmetric nxn matrices. For each of the following, determine whether the given matrix must be symmetric or could be nonsymmetric.a) C = A + Bb) D = A^2c) E = ABd) F = ABAe) G = AB + BAf) H = AB-BA
The matrices C, D, F, and G are symmetric while matrix H is skew-symmetric and matrix E is non-symmetric.
A matrix is an array of elements(numbers) in a peculiar order. A matrix with m rows and n columns is said to be of order m × n.
As it is known that [tex](A + B)^t = A^t + B^t[/tex] and [tex](AB)^t = B^t A^t[/tex] for any n × n matrices A and B.
Also, if matrices A and B are symmetric, then
[tex]A^t = A[/tex] and [tex]B^t = B[/tex].
a) Given that
C = A + B
Take the transpose of matrix C,
[tex]C^t = (A + B)^t[/tex]
[tex]= A^t + B^t \\= A + B = C[/tex].
Hence, matrix C is symmetric.
b) Given that
D = A²
Take the transpose of matrix D,
[tex]D = (A^2)^t[/tex]
[tex]= (AA)^t \\= A^t A^t \\= AA \\= A^2 = D[/tex].
Hence, matrix D is symmetric.
c) Given that
E = AB
Let's take an example,
A = [tex]\left[\begin{array}{cc}1&2&2&1\end{array}\right][/tex] and
B = [tex]\left[\begin{array}{cc}1 &-1 &-1&2\end{array}\right][/tex]
So,
E = AB
[tex]=\left[\begin{array}{cc}1&2&2&1\end{array}\right] \times \left[\begin{array}{cc}1 &-1 &-1&2\end{array}\right]\\= \left[\begin{array}{cc}-1&3&1&0\end{array}\right][/tex]
Clearly, matrix E is non-symmetric.
d) Given that
F = ABA
Take the transpose of matrix F,
[tex]F^t = (ABA)^t[/tex]
[tex]= A^t B^t A^t\\ = ABA = F[/tex].
Hence, matrix F is symmetric.
e) Given that
G = AB + BA
Take the transpose of matrix G,
[tex]G^t = (AB + BA)^t[/tex]
[tex]= (AB)^t + (BA)^t \\= B^t A^t + A^t B^t \\= BA + AB = G[/tex].
Hence, matrix G is symmetric.
f) Given that
H = AB-BA
Take the transpose of matrix H,
[tex]H^t = (AB - BA)^t[/tex]
[tex]= (AB)^t - (BA)^t \\= B^t A^t - A^t B^t \\= BA - AB = -H[/tex].
Hence, matrix H is skew-symmetric.
Thus, the matrices C, D, F, and G are symmetric while the rest are not.
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3. Two fair dice are thrown once, find the probability of getting a total score greater than 5
Answer:
26/36
Step-by-step explanation:
The probability of something = the amount of favourable outcomes/total possible outcomes.
The total number of dice combinations is 36 (6x6).
In this case there are more outcomes more than 5 than less than 5 so for the sake of simplicity we are going to find the number of outcomes less than 5 and then find the inverse.
There are only 10 possible dice combos which add to totals 5 or under:
1,1 1,2 2,1 1,3 3,1 1,4 4,1 2,2 2,3 and 3,2
That means there is a 10/36 probability of getting a total score less than 5 so to get the probability of getting more than 5, we just do 36/36 - 10/36 (because all probabilities add to 1)
Therefore there is a 26/36 probability that the toatals will add to greater than 5.
Alternatively you could also draw up a possibilities table and count the favourable outcomes.
Hope this helped!
Answer:
13/18.
Step-by-step explanation:
The favourable outcomes are (1,5) (1,6) (2,4) (2,5) (2,6) (3,3) (3,4) (3,5) (3,6) (4,2)(4,3) (4,4) 4,5) (4,6) 5,1) (5,2) 5,3) (5,4) (5,5) (5,6 )(6,1) to (6,6).
= total of 26.
As the total of all possible outcomes is 36 the answer is 26/36
= 13/18.
If a package of gift cards has a total value of $1050 how much does the average set of 2 gifts card price at if there are 15 in a group?
Answer:
$140
Step-by-step explanation:
If a package of gift cards has a total value of $1050, the total price for 2 gift cards will be 2×$1050 = $2100
If there are 15 in an average set of 2 gift cards, the average cost of the two gift cards will be expressed as;
Total price of 2gift cards/amount of card per group.
Average cost of of 2 gift cards = $2100/15
= $140
Hence the average cost of 2gift cards if there are 15 in a group is $134
Write the following set using roster notation. Do not include repeats.
A is the set of odd integers between 4 and 12.
Answer:
The Set of Natural Numbers: {1, 2, 3, 4, 5, . . .}
The Set of Whole Numbers: {0, 1, 2, 3, 4, 5, . . .}
The Set of Integers: {. . . , −5, −4, −3, −2, −1, 0, 1, 2, 3, 4, 5, . . .}
Step-by-step explanation:
round 737.88 to the nearest tenth place?
Answer:
737.9
Step-by-step explanation:
8 is the hundredth place in 737.88, and 8 rounds up. So, the answer is 737.9
Answer:
737.9
Step-by-step explanation:
When we round something to the nearest ___ place, we want to look to the value to the right of it.
Since we're rounding it to the nearest tenths place, we want to look at the value to the right of it - the hundredths place.
The number in the tens place will be one more if the hundredths place is 5 or greater. It will remain the same if the hundredths place is below 5.
8 is greater than 5. This means the tens place will round up to 9.
So 737.9.
Hope this helped!