Answer:
0.18
Step-by-step explanation:
Given: 60% students were in high school, 40% were in middle school and of the high school students, 30% had visited a foreign country
To find: probability that the student is in high school and has visited a foreign country
Solution:
Let x denotes total number of students
Number of students in high school = 60% of x = [tex]\frac{60}{100}x[/tex]
Number of students in middle school = 40% of x = [tex]\frac{40}{100}x[/tex]
Number of students who are in high school and have visited foreign country = 30% of Number of students in high school = [tex]\frac{30}{100}(\frac{60}{100})x=\frac{18}{100}x[/tex]
Probability that the student is in high school and has visited a foreign country = Number of students who are in high school and have visited foreign country/ Total number of students = [tex]\frac{\frac{18}{100}x}{x}=\frac{18}{100}=0.18[/tex]
Which parent function is represented by the graph?
Answer:
This is an absolute value graph
Step-by-step explanation:
Please answer correctly !!!!!!!!!!! Will mark brainliest !!!!!!!!!!!
Answer:
lower price = 3
higher price =11
Step-by-step explanation:
p(x) = -2(x-3) (x-11)
Setting equal to zero
0 = -2(x-3) (x-11)
Using the zero product property
x-3 = 0 x-11 =0
x=3 x = 11
Mrs. Jackson gives the table below to her students. In order for the function to be linear, what must a be and why? a = 22 because the rate of change is 1. a = 20 because the rate of change is 3. a = 22 because the rate of change is –1. a = 20 because the rate of change is –3.
Answer:
D
Step-by-step explanation:
a = 20 because the rate of change is –3.
What is a linear function?A linear function has one independent variable and one based variable. The independent variable is x and the based variable is y. a is the steady time period or the y-intercept. it's far the cost of the dependent variable while x = zero.
What are the requirements for functions to be linear?Which will be a linear feature, a graph needs to be both linear (a direct line) and a characteristic (matching each x-value to the most effective y-value). It must also pass a polygraph check, complete an obstacle path, and offer a minimum of 3 references. The qualifications are stringent.
Learn more about linear function here: brainly.com/question/14796161
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when 5 is added to a certain number and the result is multiplied by 3, the final answer is 27. What is the original number
Answer:
Let the number be x
5 is subtracted from a certain number means it will be x - 5
The result is multiplied by 7, the final result is 63,
7 (x - 5) = 63
7x - 35 = 63
7x = 63 + 35
7x = 98
x = 98/7
x = 14
The number is 14
Answer the number is 14 and the equation is 7 (x - 5) = 63
Step-by-step explanation:
Using the appropriate arithmetic operation, the value of the original number is 4
Let the number be : p
5 added to p :
5 + pMultiply the addition by 7 :
(5 + p) × 3 = 27We can solve for p thus :
15 + 3p = 27
3p = 27 - 15
3p = 12
p = 12/3
p = 4
Therefore, the original number is 4.
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Find the area of the irregular polygon, pls hurry I need this quickkkkkk
A: 96 in2
B: 120 in2
C: 80 in2
D: 154 in2
Answer:
To find the area of an irregular polygon you must first separate the shape into regular polygons, or plane shapes. You then use the regular polygon area formulas to find the area of each of those polygons. The last step is to add all those areas together to get the total area of the irregular polygon
and i thank that it is b 120 in2
Simplify -(3xy^4)^-4
Answer:
[tex]\frac{-1}{81x^4y^16}[/tex]
Step-by-step explanation:
→Rewrite the expression so that the exponent is no longer negative. To do this, you write it as:
[tex]\frac{-1}{(3xy^4)^4}[/tex]
→Apply the exponent (4) to the 3, x, and [tex]y^4[/tex]:
[tex]\frac{-1}{81x^4y^16}[/tex]
a+√b) (a-√b .)is equal to
Answer:
Step-by-step explanation:
[tex]a^{2} - a\sqrt{b} + a\sqrt{b} - b^{2} \\= a^{2} - b^{2} or (a+b) . (a-b)[/tex]
Value of given multiply a² - b
Given that;
(a+√b)(a-√b)
Find:
Value of given multiply
Computation:
(a+√b)(a-√b)
Formula used;
⇒ (a + b)(a - b) = a² - b²
So,
⇒ (a+√b)(a-√b)
⇒ (a)² - (√b)²
⇒ a² - b
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what is the x and y intercept of y= 8x-18
Answer:
The x-intercept is (2.25,0).
The y-intercept is (0,18)
This is the second time I've posted it: I need help on a math problem and it's due in a few hours. Could someone please help me out? I will mark them I Brainlest!
Answer:
Step-by-step explanation:
inland city has the coldest winter and warmest summer.
inland city, since it has a higher median of around 14.5 Celsius while coastal city has around 14 degrees Celsius
I would prefer to live in coastal city, since it has a smaller range of temperatures. Also, it has nice and mild weather: it has warmer winters than inland city, and cooler summers than inland city.
Solve the equation below. 29 11 7 5
Answer:
x = 11
Step-by-step explanation:
Take the fifth root on both sides.
27(x-2) = 3^5
27x-54 = 3^5
27x = 243 + 54
27x = 297
x = 297/27
x = 11
Answer:
[tex]x = 11 \\ [/tex]
Step-by-step explanation:
[tex] \sqrt[5]{27(x - 2)} = 3 \\ { (\sqrt[5]{27(x - 2} )}^{5} = {3}^{5} \\ 27(x - 2) = 243 \\ 27x - 54 = 243 \\ 27x = 243 + 54 \\ 27x = 297 \\ \frac{27x}{27} = \frac{297}{27} \\ x = 11[/tex]
Monica deposited $760 into an ordinary annuity after each quarter for 2 years at 4% interest compounded quarterly. Determine the (a) future value of each account and (b) the total interest amount earned.
Answer:
FV=$823.004
Total interest earned=$63.004
Step-by-step explanation:
FV=PV×(1+i/n)^nt
PV=$760
I=4%
t=2 years
n=4
FV=760+(1+0.04/4)^4*2
=760+(1+0.01)^8
=760+(1.01)^8
=760+(1.0829)
=823.004
FV=$823.004
Total interest amount earned
=FV-PV
=$823.004-760
=$63.004
Which ordered pair represents the solution to the system of equations?
2x-7y=0
x-6y=-5
A. (7,2)
B. (2,7)
C. (1,1)
D. (-11,-1)
Miles has a piece of paper that is 1/4 of a large circle.He cuts the paper into five equal parts from the center point of the circle. What is the angel measure of each part?
Answer:
18°
Step-by-step explanation:
First, we find the angle of the large piece of paper that is 1/4 of a circle.
The angle in a circle is 360°. The angle in 1/4 of a circle is:
1/4 * 360 = 90°
He cuts the paper into five equal parts from the center point of the circle. That means the angle was divided into 5 parts:
1/5 * 90 = 18°
Each part has an angle of 18°,
Answer: it's 18
Step-by-step explanation: 18 is the answer hope this helps
On a multiple-choice test, each question has 4 possible answers. A student does not know the answers to three questions, so the student guesses. What is the probability that the student gets all three questions wrong? The probability that the student gets all three questions wrong is . What is the probability that the student gets all three questions right? The probability that the student gets all three questions right is .
Answer:
P(making 3 wrong guesses) = 27/64
P(making 3 right guesses) = 1/64
Step-by-step explanation:
Number of possible answers per question = 4
Number of right answer per question = 1
Number of wrong answers per question = (4 - 1) = 3
Probability = (Number of required outcomes / Number of Total possible outcomes)
A.) probability of guess 3 questions wrong :
Probability of making a wrong guess = (number of wrong options / total number of options
P(making a wrong guess) = 3/4
Therefore,
P(making 3 wrong guesses) = 3/4 × 3/4 × 3/4 = (27/64)
B.) probability of making 3 right guesses:
P(making a right guess) = (number of right options per question / total number of options per question)
P(making a right guess) = 1/4
P(making 3 right guesses) =(1/4 × 1/4 × 1/4) = 1/64
When the county fair opened its gates, 68 people entered the fairgrounds. After one hour, there were 1.5 times as many people on the fairgrounds as when the gates opened. After two hours, there were 1.5 times as many people on the fairgrounds as the previous hour. If this pattern continues, write the equation representing the number of people, y, at the fair x hours after the gates open.
Answer:
y=1.5x + 68
Step-by-step explanation:
68 is the starting value and it increases by 1.5 every hour.
Answer:
y = 68 ( 1.5) ^x
Step-by-step explanation:
This is exponential growth
The formula is
y = ab^x where a is the initial amount and b is the growth rate
The initial amount is 68 and the growth rate is 1.5
y = 68 ( 1.5) ^x
What is the inverse of the function f(x) equals X +3
Answer: Option C
(C) h(x) = x – 3
Step-by-step explanation:
What is the inverse of the function f(x) = x +3?
(A) h(x) = one-thirdx + 3
(B) h(x) = one-thirdx – 3
(C) h(x) = x – 3
(D) h(x) = x + 3
Answer:
c
Step-by-step explanation:
Find the area of the triangle.
Apply the area formula [tex]A=\frac{bh}{2}[/tex] to get [tex]\frac{8\cdot 14}{2}=\boxed{56\,\text{square units}}.[/tex]
Write a positive or negative integer that represents the situation.
The temperature is 13 degrees above zero.
An integer that represents the situation is
PLs Answer this is my finals and I will mark you Brainiest
Answer:
+13 or just 13
Square tiles (12 inches by 12 inches) are used to cover a rectangular countertop containing 40 square feet. How many tiles are needed to cover the countertop?
I WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!! :)
Answer:
it would take 40
Step-by-step explanation:
12 inches = 1 foot
1 foot by 1 foot square tiles
And 40 square feet so
1 x 40 = 40
If x equals 5, what is 2x²? Quickest gets brainliest.
Answer: 50
Step-by-step explanation:
If 5 = x
You would substitute 5 in for X and start by squaring 5
Once you square 5 you get 25
Multiply 25 by 2 to get 50 and there is ur answer.
which number line represents the solution set for the inequality 3(8 - 4x) < 6(x - 5 )
Answer:
3 <x
Step-by-step explanation:
3(8 - 4x) < 6(x - 5 )
Divide each side by 3
3/3(8 - 4x) < 6/3(x - 5 )
8 -4x < 2(x-5)
Distribute
8 -4x < 2x-10
Add 4x to each side
8 -4x+4x < 2x+4x-10
8 < 6x-10
Add 10
8+10< 6x-10+10
18<6x
Divide by 6
18/6 < 6x/6
3 <x
Start by distributing on both sides of this inequality.
This gives you 24 - 12x < 6x - 30.
Put your x's together on the left by subtracting 6x from both sides.
This gives you 24 - 18x < -30.
Now subtract 24 from both sides to get -18x < -54.
Now divide both sides by -18 and x > 3.
Remember to switch the direction of the inequality sign
when you divide both sides by a negative number.
I have also graphed it below on the number line.
Please answer correctly !!!! Will mark brainliest !!!!!!!!!!!!!!
Answer:
-1 not in domain
0 in the domain
2 in the domain
Step-by-step explanation:
g(x) = sqrt(8x)
g(-1) = sqrt(-8) the answer is not real so not in the domain of real number
g(0) = sqrt(0) = 0 in the domain
g(2) = sqrt(8*2) = 16 = 4 in the domain
Please answer correctly !!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!
Answer:
B. No solutions
Step-by-step explanation:
Answer:
It is B
Step-by-step explanation:
They are both parallel to each other.
Super easy question for y’all, ez points. I’m just dumb. :) pls help
Answer:
0
Step-by-step explanation:
Ends at the same place
Answer:
0
Step-by-step explanation:
Help pleaseee look at the photo above... What’s the answer for y?
y = 25x
the x represents gallons
b) the diagram shows a triangle ABC use the tool to matk angle CAB
Answer:
This triangle is right angle triangle
Step-by-step explanation:
Express the form 1: n
5:20
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5 : 20
Divide both sides by 5 to get the answer
5/5 = 1
20/5 = 4
Thus, the answer is 1 : 4
Have A Nice Day ❤
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Select the equations that have the solution m = 17 Mark all that apply
A. 3 + m = 21
B. m - 2 = 15
C. 14 = m - 3
D. 2 = m - 15
What is 3 over 14 to the power of 2
Solve the equation for the letter d: C= (3.14)(d)
Answer:
d = [tex]\frac{C}{3.14}[/tex]
Step-by-step explanation:
Given
C = 3.14d ( isolate d by dividing both sides by 3.14 )
[tex]\frac{C}{3.14}[/tex] = d
