In a survey conducted at a pet store, 150 customers were asked if they owned
birds or fish. The survey data are shown in the relative frequency table.
Own a bird
Do not own a
bird
Total
0.04
0.08
Own fish
Do not own fish
Total
0.02
0.86
What percentage of the people surveyed own fish?
Answer:
12%
Step-by-step explanation:
have faith in me bro :>
12% of the people surveyed own fish.
What is relative frequency?Relative frequency refers to the percentage or proportion of times that a given value occurs within a set of numbers, such as in the data recorded for a variable in a survey data set.
We get
Total (own fish) = 0.04 + 0.08 = 0.12
So, own fish = 0.12
= 12%
12% of the people surveyed own fish.
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ANSWER QUICKLY PLEASE!!!!!!
Answer:
See belowStep-by-step explanation:
1Use similarity ΔPQS ~ ΔRQS
Use the ratio of corresponding sides:
PS/QS=QS/SRPS*SR = QS²PS*20 = 8²20PS = 64PS = 64/20PS = 3.22Find PS
PS = PR - RS = 72 - 54 = 18Use similarity ΔPQS ~ ΔPRQ
Ratio of corresponding sides:
PQ/PR=PS/PQPQ² = PR*PSPQ² = 72*18 = 4*18*18 = (2*18)² = 36²PQ = 363Use similarity ΔPQS ~ ΔPRQ
Ratio of corresponding sides:
PQ/PR=PS/PQPS=PQ²/PRPS = 14²/28 = 7Find RS:
RS = PR - PS = 28 - 7 = 214Answer options
a) ΔRPQ ~ ΔRQS - correctb) ΔRQS ~ ΔQPS - correctc) ΔRPQ ~ ΔQPS - correctd) ΔRPQ ~ ΔRQS ~ ΔQPS - most correct as combines all above choicesplease help me answer these 2
Answer:
y-2/3x-4
the answer is (0,3)
3x+4y-12
the answer is (0,3)
Solve the quadratic equation 3x? + x-5 = 0
Give your answers to 2 decimal places.
Step-by-step explanation:
for x=5
3×0+5-5=0
0+0=0
i don't know i just tried
Use substitution to solve the system of equations
y=x+1.75 4x-2y = 4
Answer:
y=x+1.75
4x-2y = 4
The answer is (3. 75, 5.5)
Step-by-step explanation:
If you plot the two equations on Desmos' Graphing Calculator, you will see that the solution is intersected at (3.75, 5.5).
A cylinder has a height of 17 centimeters and a diameter of 18 centimeters. What is its
volume? Use a * 3.14 and round your answer to the nearest hundredth.
Answer:4323.78cm^3
Step-by-step explanation:
Mr. Smith has an online cooking show. Before he films an episode about baking the perfect pound cake, he prepares his ingredients. His recipe calls for 2 1/2 cups of sugar for the cake and 1 1/4 cups of sugar for the vanilla glaze. How many 1/4 cup scoops of sugar does he need?
3. Use Structure Shari is drawing a tree diagram
to represent the sample space of rolling a
12-sided game piece and spinning the pointer of
a 4-section spinner. Does it matter if Shari starts
the tree diagram with the game piece outcomes
or the spinner outcomes? Explain.
The sample space of Shari's tree diagram is the total possible outcomes of rolling the game piece and spinning the pointer.
It doesn't matter if Shari starts with the spinner or the game piece
How to determine the tree diagramThe experiment involves:
Rolling a 12-sided game pieceSpinning the pointer of a 4-section spinnerIf Shari starts with the game piece, the sample size (n) would be:
n = 12 * 4
n = 48
If Shari starts with the spinner, the sample size (n) would be:
n = 4 * 12
n = 48
Notice that the sample size remains unchanged irrespective of what he starts with
Hence, it doesn't matter if Shari starts with the spinner or the game piece
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A colony of 100 bacteria doubles in size every 60 hours. What will the population be 180 hours from now?
Answer:
600
Step-by-step explanation: [tex]100\times2\times\frac{180}{60}[/tex]
Cross out the common factor
[tex]100\times2\times3[/tex]
Calculate the product or quotient
[tex]200\times3[/tex]
[tex]600\ YOUR\ ANSWER\ which\ can\ also\ be\ written\ as\ 6\times{10}^2\[/tex]
I hope this helps you
:)
If the initial population of the bacteria is 100, then the population of the bacteria after 180 hours will be 800.
What is an exponent?Exponential notation is the form of mathematical shorthand which allows us to write complicated expressions more succinctly. An exponent is a number or letter is called the base. It indicates that the base is to raise to a certain power. X is the base and n is the power.
A colony of 100 bacteria doubles in size every 60 hours.
The exponential relation will be given below.
[tex]\rm P = 100 \times 2^{t/60}[/tex]
Where t is the number of hours
Then the population of the bacteria after 180 hours will be
[tex]\rm P = 100 \times 2^{t/60} \\\\P = 100 \times 2 ^{180/60}\\\\\rm P = 100 \times 2^{3}\\\\\rm P = 100 \times 8\\\\\rm P = 800[/tex]
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The length of a rectangle is eight more than twice its width. The perimeter is 96 feet. Find the dimensions of the rectangle
Variable=
Equation=
Step-by-step explanation:
Length = L
Width = W
L=8 more than 2W
L = 8 * 2W
L = 16W
Perimeter = 96
perimeter is the lengths of all sides added together
so
2L + 2W = 96
we have
L = 16W
2L + 2W = 96
let's do substitution
put what L = into 2L + 2W = 96
so
2(16W) + 2W = 96
can you rearrange that to get w
put answer in comment
What percent is 10 out of 40?
Answer:
25%
Step-by-step explanation:
Given the following question:
What percent is 10 out of 40?
We use the formula to calculate percentages to find the answer.
[tex]\frac{p \times n}{100}[/tex]
[tex]\frac{25\times40}{100} =25\times40=1000\div100=10[/tex]
[tex]=10[/tex]
"25%" of 40 is equal to 10.
Hope this helps.
Simplify the expression below.
–3 X5 X(-9) X (-2)
Answer:
[tex] - 3 \times 5 \times - 9 \times - 2 \\ - 15 \times + 18 = 3[/tex]
What is the relationship between Z4 and 25?
1
2
m
3
4
5
6
7
8
A corresponding angles
B. same-side interior angles
C. alternate interior angles
D. alternate exterior angles
Answer:
A) corresponding angles are equal
Which phrase correctly describes the solution to the quadratic equation?
[tex] {2x}^{2} + 25 = { - x}^{2} + 10x[/tex]
Answer:
"Two complex solutions" is the answer.
Answer:
Two complex solutions.
4. Magnus flips a fair coin once and rolls an ordinary dice once.
a) Write down all the possible outcomes.
b) Find the probability that Magnus gets a head and a 3.
The possible outcomes of the fair coin and the dice is the sample space
The list of possible outcomes is: {H1,H2,H3,H4,H5,H6,T1,T2,T3,T4,T5,T6}The probability of getting a head and a 3 is 1/12How to list the possible outcomesThe items are given as:
Coin = 1
Dice = 1
The sample space of both items are:
Coin = {H,T}
Dice = {1,2,3,4,5,6}
So, the list of possible outcomes is: {H1,H2,H3,H4,H5,H6,T1,T2,T3,T4,T5,T6}
The probability of getting a head and a 3From the above list, there is only one outcome that has a head and a 3 out of 12 possible outcomes
So, the probability of getting a head and a 3 is:
p = 1/12
Hence, the probability of getting a head and a 3 is 1/12
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find the value of x
a:21
b:27
c:31
d:34
Answer:
what's the problem?
Step-by-step explanation:
do u have a picture to show us?
to solve m + 9 = 45, should you add or subtract 9 from both sides of the equation
Answer:
subtract 9 from both sides
Step-by-step explanation:
m + 9 = 45 ( subtract 9 from both sides )
m = 36
Answer:
Subtract
Step-by-step explanation:
You should subtract since the equation says to add.
You basically do the opposite of what it says.
For example, if it was m - 9 = 45 you would add 9 on both sides, but in this case, you would subtract since its m + 9 = 45
m + 9 = 45
subtract nine by 9 and 45:
m = 36
36 + 9 = 45
Find the cosine of ZY.
Z
10V3
10
Y
20
Write your answer in simplified, rationalized form. Do not rour
sos (n = Y
Answer:
[tex] \frac{ \sqrt{3} }{2} [/tex]
A random sample of 30 professional tennis players is selected. For each tennis player, their first serve percentage and their second serve percentage are recorded. A 95% confidence interval for the mean difference (first – second) in serve percentages is found to be 0.10 to 0.18. A tennis coach claims that there is no difference in first and second serve percentages among professional tennis players. Is this claim supported by the confidence interval?
No, the confidence interval does not contain the value of 0.
Yes, the confidence interval does not contain the value of 0.
No, the confidence interval does not contain negative numbers.
Yes, the confidence interval consists entirely of positive numbers.
WILL GIVE BRAINLIEST IF CORRECT PLEASE ANSWER!!!!!!
Find the value of sin G rounded to the nearest hundredth, if necessary.
Answer:
Step-by-step explanation:
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HELP HELP I NEED HELP ASAP
HELP HELP I NEED HELP ASAP
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Answer:For the answer to this It has me stuck between A and B
NEED HELP ASAP PLEASE EASY 10 to 20 POINTS RN
Answer:
explicit definition: [tex]a_n=5n-4[/tex]
recursive definition: [tex]a_n=a_{n-1}+5[/tex]
Step-by-step explanation:
Given arithmetic sequence: 1, 6, 11, 16, 21 ...
Therefore,
first term a = 1common difference d = 5Using the general form of arithmetic sequence: [tex]a_n=a+(n-1)d[/tex]
[tex]\implies a_n=1+(n-1)5[/tex]
[tex]\implies a_n=1+5n-5[/tex]
[tex]\implies a_n=5n-4[/tex]
or [tex]a_n=a_{n-1}+5[/tex]
Jacee has had her eye on a dress. It originally cost $65. It is on sale for 33% off. How much will the dress cost before taxes?t?
$21.45
$33
$43.55
$86.45
Answer: 21.45$
Step-by-step explanation: I can’t explain how i got it but i hope this helped!
Answer:
$43.55
Step-by-step explanation:
I took 65 and found 33% by making 33% .33 and did 65*33, then subtracted what I got from the total of 65, 65-21.45 which is $43.55.
What is the slope of the line that contains the points (-1, 2) and (4, 3)?
Answer:
Slope: 1/5
Step-by-step explanation:
-1,2
4,3
-1 - 2 = -1
-1 - 4 = -5
-1/-5 = 1/5
Please help I will give brainliest.
Explanation and Answer:
The graph of y=[tex]x^2[/tex] is a parabola (it looks like a u) that intersects the graph at the origin. These are all shifted variations of that graph, so from that you can figure out their formula by visualizing it.
You can also try substituting numbers into the equations and drawing a graph from that.
Graph A is the y=x^2, shifted to the left, so it becomes [tex]y=x^2+x[/tex]. It's +x because now negative numbers can be gotten from the equation, as compared to before when x^2 gives only positive numbers.
Graph B is [tex]y=x^2+3x[/tex] . Similar to graph A, but now it moves down by more units, because of the 3x.
Graph C is [tex]y=-x^2+2[/tex]. Imaging y=x^2 flipped, it changes from looking like a u to n. That's y=[tex]-x^2[/tex]
Graph D is [tex]y= x^2-x[/tex]. The opposite of Graph A.
What is the measure of ∠A in the image below?
Answer:
A
Step-by-step explanation:
3x and x + 30 are vertically opposite angles and are congruent , then
3x = x + 30 ( subtract x from both sides )
2x = 30 ( divide both sides by 2 )
x = 15
Then
∠ A = 3x = 3(15) = 45°
See <A and x+30 are opposite angles .
We know that opposite angles are equal
so
3x=x+302x=30x=15Now
<A=3x=45°Option A is correct
How large of a circle would it
take to fit 10,000 toy cars
inside?
The largeness of the circle is an illustration of proportions
Using the assumed parameters, the circle must be 200 times larger than a normal circle
How to determine the size of the circle?The question is incomplete; so I will make use of assumed values
Assume that a normal circle of radius r can take up to 50 toy cars.
When the normal circle is replaced by a larger circle of radius R to take up to 10000 toy cars, the size of the circle must be:
Size = 10000/50
Divide
Size = 200
This means that the circle must be 200 times larger than a normal circle
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If ΔRST congruent to ΔNPQ, which of the following is true? A. ∠R congruent to ∠P B. ∠R congruent to ∠Q C. ∠T congruent to ∠P D. ∠T congruent to ∠Q
Answer:
Step-by-step explanation:
The order of the expression for congruent shapes indicate the
corresponding vertices between the two shapes that are congruent.
The option which is true is D. T = Q.
Reasons:
The given statement is; ΔRST ≅ ΔNPQ
By Corresponding Parts of Congruent Triangle are Congruent, CPCTC, we
have; The sides on ΔRST are congruent to the corresponding sides of ΔNPQ
Therefore;
RS ≅ NP
RT ≅ NQ
ST ≅ PQ
By CPCTC, we have that the angles on ΔRST are congruent to the corresponding angles of ΔNPQ
Therefore;
∠R ≅ ∠N
∠S ≅ ∠P
∠T ≅ ∠Q
Which gives, by definition of congruency;
∠R = ∠N
∠S = ∠P
∠T = ∠Q
Therefore, the true statement is D. T = Q.
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The equation for a circle is shown x ^ 2 + y ^ 2 = 9 Which statement best explains why the equation does not describe a function?
x2+y2=9 is not a function
In order for an equation to represent a function any single value of x must have at most one corresponding value of y which satisfies the equation.
For
x
2
+
y
2
=
9
XXXX
if (for example)
x=0XXXX there are two values for y (namely +3 and −3) which satisfy the equation
helppp pls ASAP first correct answer gets brainleist
[tex]\tt \dfrac{3}{8}\times 28.7=10.7625=10.76~kg[/tex]