1.) At a pet store, there are 30 aquariums. Of the 30, 20 have fresh water with 15
fish each. The other 10 aquariums have salt water with 6 fish each. Write an
equation that could be used to find f, the total number of fish at the pet store?
(Equations Review)
Your answer
Answer:
f = (20 × 15) + (10 × 6)
Step-by-step explanation:
You are just find how many fish are salt water and how many freshwater and adding them together. The total number of aquariums is irrelevant in this case.
Answer:
20 x 15 = A A= 300
10 x 6 = B B=60
A + B = F F= 360
300 + 60 = F
300 + 60 =360
Step-by-step explanation:
Pleasee marrkk me blainist
what is the surface area, in square inches, of the container?
Answer:
62 in
Step-by-step explanation:
You can split up the rectangles and find the surface area of each on them add them
Hope this helps!
Evaluate (a3)4
What is the answer please?
Answer: -3 to the fourth power means we are multiplying -3 four times. Hence answer is 81 and not -81
Step-by-step explanation:
Write integer to describe each situation. A. Charge of 24$ is debited from a bank account
Answer:
-24
Step-by-step explanation:
To represent a charge of $24 debited from a bank account, this type of transaction being described as a debit means that a sum of $24 was deducted from the account, meaning the total amount in the account will reduce after this transaction takes place. Hence a charge of $24 being debited will take a negative sign as could be represented by the integer - 24
Find the product. Write the answer in scientific notation.
(5×10^−7)×(3×10^6)=
I GIVE BRANLIEST AND ALOT OF POINTS
Answer:
1.5
Step-by-step explanation:
Answer:
1.5
Step-by-step explanation:
Please Help! (picture)
Step-by-step explanation:
f(g(x))
f(x-1)
(x-1)^2
x^2 -2x + 1
a system of equations is shown x-2y=-5 2x+4y=14
Answer: here you go
Step-by-step explanation:
A) 2x + 4y = 14
B) 4x + y = 20
If you multiply equation A by -2, then when the equations are added, the x will be eliminated.
The solutions are:
X = 4.714285714285714
Y = 1.1428571428571428
A card game requires that you have a sum of 5 in order to win. Based on the cards shown below, will Cameron win the game? Look at the picture above
Answer:
D
Step-by-step explanation:
Ann's rent increased from $1,200 to $1,350.
By what percent did her rent increase?
Answer: Percentage increase: 12.5%
Step-by-step explanation: (EXAMPLE) percentage increase/decrease = (Vnew - Vold) / Vold × 100%
Example #1
Price percentage increase from old value of $1000 to new value of $1200 is caluclated by:
percentage increase = ($1200 - $1000) / $1000 × 100%
= 0.2 × 100% = 20%
Answer:
12.5%
Step-by-step explanation:
1350 - 1200 / |1200| × 100% =
150 / 1200 × 100 = 12.5%
The length of a rectangle is 54cm it's breadth is 8cm what is it's perimeter ? what is it's area?
Answer:
[tex]perimeter = 2(length + breadth) \\ =2 (54 + 8) \\ = 124 \: cm[/tex]
Describe and correct the error in finding the distance between the points (−3 −2) and (7 4)
Answer:
[tex]2\sqrt{34}[/tex] ≈ 11.6619
Step-by-step explanation:
Answer: 6 units Step-by-step explanation: Use the distance formula, [tex]\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}[/tex]. Plug the x and y values from the given points into the distance formula:
[tex]\sqrt{(7-[-3])^{2}+(4-[-2])^{2}}[/tex]
Simplify:
[tex]2\sqrt{34}[/tex] ≈ 11.6619
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Thank you!
The distance between two coordinate points is 11.66 units.
What is distance formula?The distance formula which is used to find the distance between two points in a two-dimensional plane is also known as the Euclidean distance formula. On 2D plane the distance between two points (x₁, y₁) and (x₂, y₂) is Distance = √[(x₂-x₁)²+(y₂-y₁)²].
The given coordinate points are (-3, -2) and (7, 4)
Substitute (x₁, y₁) =(-3, -2) and (x₂, y₂)=(7, 4) in distance formula, we get
Distance = √[(7+3)²+(4+2)²]
= √(100+36)
= √136
= 11.66 units
Therefore, the distance between two coordinate points is 11.66 units.
To learn more about the distance formula visit:
brainly.com/question/27262878.
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Historically, about 53% of the population of a certain country believed that the planet's temperature was rising ("global warming"). A March 2010 poll wanted to determine whether this proportion had changed. The poll interviewed adults in the population, and said they believed that global warming was real. (Assume these adults represented a simple random sample.)
Required:
a. What percentage in the sample believed global warming was real in 2010?
b. Is this more or less than the historical 57%?
Answer:
(a) The proportion is 61.23%
(b) It is more than the historical 57%
Step-by-step explanation:
This question has missing details, and they are:
[tex]n = 926[/tex] ---- The Sample Adults
[tex]x = 567[/tex] -- Those that believe global warming was real
Solving (a): The proportion of those that believe.
This is calculated as:
[tex]p = \frac{x}{n}[/tex]
Substitute values for x and n
[tex]p = \frac{567}{926}[/tex]
[tex]p = 0.6123[/tex]
Express as percentage
[tex]p = 0.6123 * 100\%[/tex]
[tex]p = 61.23\%[/tex]
Solving (b) More or less than 57%
By comparison:
[tex]61.2\% > 57\%[/tex]
Hence, it is more than the historical 57%
Solve (x-3)^2=5 I need help it’s on a p e x
Answer:
x= 3 + or - √5
hope this helps
have a good day :)
Step-by-step explanation:
All vectors and subspaces are in RnR n. Mark each statement True or False. Justify each answer.
a. Not every linearly independent set in RnR n is an orthogonal set.
b. If y is a linear combination of nonzero vectors from an orthogonal set, then the weights in the linear combination can be computed without row operations on a matrix.
c. If the vectors in an orthogonal set of nonzero vectors are normalized, then some of the new vectors may not be orthogonal.
d. A matrix with orthonormal columns is an orthogonal matrix.
e. If L is a line through 0 and if ˆyy^ is the orthogonal projection of y onto L, then ∥ˆy∥∥ y^ ∥ gives the distance from y to L.
Answer:
a. True
b. True
c. False
d. False
e. False
Step-by-step explanation:
The matrix with orthonormal column must be in square for that it forms orthogonal matrix. Every orthonormal set of non zero vector is linearly independent. This statement is correct because there is linear combination of non zero vectors.
-. For the event of rolling three standard fair 6-sided dice, find the following probabilities. Give all
answers as a simplified fraction.
The probability of rolling a sum of 8 or a sum of 12.
P(Sum is 8 u Sum is 12)
Answer:
23/108
Step-by-step explanation:
Remark
There are 6 * 6 * 6 = 216 ways that you can throw three dice. There are 21 different ways of throwing an 8There are 25 different ways of throwing a 12I'll list the eights. The 12s are done the same way.Ways of making Eight
116125134143152161215224233242251314323332341413422431512521611Answer
P(8) = 21 / 216
P(12) = 25/ 216
P(8 or 12) = 21/216 + 25/216
P(8 or 12) = 46/216 = 23/108
The most expensive type of life insurance is
O limited-payment life insurance
O term insurance
O endowment life insurance
O whole-life insurance
Define the following terms using your own words. (2-3 sentences only)
1. Frequency
2 Class size
3. Ogive
4. Variance
5. Range
Answer:
Frequency: the rate at which something occurs over a particular period of time or in a given sample.Class size :Class size is the average number of students per class, calculated by dividing the number of students enrolled by the number of classes..O give :Ogive is the curve which is constructed by plotting cumulative frequency data on the graph paper, in the form of a smooth curve.Variance: The term variance refers to a statistical measurement of the spread between numbers in a data set. Range: The range, the difference between the largest value and the smallest value.What is the range of y = 7x^2 + 14x – 9?
Answer:
-1,-16
Step-by-step explanation:
y=ax^2+box+c
help I'll give brainliest!!!
LMNP is rotated 180° clockwise around the origin. M 3, 4) N54) 2 RE PX90) What are the coordinates of L'? A. L'(1,0) B. L'(-1,0) c. l'(0,1) D. L'(0, -1)
Answer:
It’s (-3, -4)
Step-by-step
I did this program too.
What is sin 0 when cot 0 = {?
0
(1,0)
sin e
Rationalize the denominator if necessary.
9514 1404 393
Answer:
(√6)/3
Step-by-step explanation:
The relation between cot(x) and sin(x) is ...
sin(x) = 1/√(cot(x)^2 +1)
Filling in the given value, we have ...
[tex]\displaystyle\sin{\theta}=\frac{1}{\sqrt{\left(\frac{\sqrt{2}}{2}\right)^2+1}}=\sqrt{\frac{2}{3}}\\\\\boxed{\sin{\theta}=\frac{\sqrt{6}}{3}}[/tex]
Step-by-step explanation:
#CarryOnLearningSix scatterplots are shown. Suppose regression lines were generated for them, then order their correlation coefficients from least to greatest.
A) C, D, B, A, E, F
B) F, E, D, C, B, A
C) C, B, D, E, A, F
D) A, B, C, D, E, F
Answer:
C) C, B, D, E, A, F
Step-by-step explanation:
The closer the data points are to each other along the line of best fit on a scatter plot, the greater the correlation coefficient and vice versa.
Therefore, the scatter plot that has the least correlation coefficient would be the scatter plot with the data points that are farther apart from each other along the line of best fit which is C, followed by B, D, E, A, and F.
can someone explain how to solve and graph this step-by-step?
A writer buys a new laptop for $1866. Every year the laptop decreases in value by 20%.
Answer:
the answer is A
A function that represents a $1866 laptop that decreases in value by 20% each year is f(n)=1866(1.2)ⁿ.
What is the function?Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.
Given that,
$1866 laptop that decreases in value by 20% each year.
Here, f(n)=1866(1+20%)ⁿ, where n is the number of years
f(n)=1866(1+20/100)ⁿ
f(n)=1866(1.2)ⁿ
Therefore, a function that represents a $1866 laptop that decreases in value by 20% each year is f(n)=1866(1.2)ⁿ.
To learn more about the function visit:
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What are the coordinates of point S?
Write your answer as an integer or decimal to the nearest 0.5.
Answer:
(0,1.5)
Step-by-step explanation:
(x,y)
Christine's age is 6 more than Ken's age. Three times Ken's age plus 5 times
Christine's Age is equal to 46. How old is Christine?
Answer:
6x3+5=23
Step-by-step explanation:
Without establishing good credit, it would be most difficult to
A
find a job.
B
buy lunch.
с
buy a house.
D
make a minimum payment.
Answer:
It's gonna be C
Step-by-step explanation:
No explanation it's C.
HELP!!!!? ASP! PLSSSS #14
GIVING OUT BRAINLIEST ANSWER !! PLS HELP ME OUT !! (last minute)
Answer:
.7880
Step-by-step explanation:
Answer:
pretty sure it's 0.7880 !!! good luck, this stuff is super tough :(
Step-by-step explanation:
What linear expression would you add to -4y+2 to have a sum of y
Answer:
4
Step-by-step explanation:
rewrite
3/20
and
2/15
so that they have a common denominator.
Answer:
9/60 and 8/60
Step-by-step explanation:
They both have the number 60 in common