Answer:1
Step-by-step explanation:
just plug them in
we know x =2
so in where ever it says x, we put in 2
y=3(2) -5
Answer:
y= 1
Step-by-step explanation:
y= 3x -5
To find the value of y when x= 2, replace x with 2 in the equation.
When x= 2,
y= 3(2) -5
y= 6 -5
y= 1
A plumber charges $50 to visit a house plus $40 for every hour of work. Define a variable to represent the unknown quantity. Then write an expression to represent the total cost of hiring a plumber.
Answer:
50 + 40x
Step-by-step explanation:
Help please it's urgent
Answer:
7.6
Step-by-step explanation:
please make me brainliest
Answer:
it’s me on another account make my other title brainliest now :D
Step-by-step explanation:
Can you please help me please can you answer both of these questions
Answer:
Item 2
Perimeter is (5*2) + 12.5*2 = 35 ft
Area is 12.5 * 5 = 62.5 ft^2
________________
Item 3
perimeter is (5.8*2) + 9*2 = 29.6 ft
Area is 9 * 4.8 = 43.2 ft^2
Step-by-step explanation:
Hope to help you
Formular of area. you can find in internet. If you forgot.
and perimeter can take length each side to sum.
A local school board wants to determine the proportion of households in the district that would support starting the school year a week earlier. They ask a random sample of 100 households whether they would support starting the school year a week earlier, and 43 households responded that they would. The school board plans to construct a 95% confidence interval for the true proportion of households that would support starting the school year a week earlier. Are the conditions for inference met?
A)Yes, the conditions for inference are met.
B)No, the 10% condition is not met.
C)No, the randomness condition is not met.
D)No, the Large Counts Condition is not met.
The conditions for inference is not met in the question due to the fact that the large count condition is not met.
What is the large count condition in statistics?This is the condition in statistics that states that the numbers of the successes and the failures have to be greater than 10 for there to be a normal distribution.
Using this formula n(1-p) ≥ 10. The probabilioty is 95%, therefore it would be less than 10
Read more on statistics here: https://brainly.com/question/15525560
HELP PLEASE!
Three consecutive integers have a sum of 57. Find the integers.
Answer:
18, 19, and 20.
Step-by-step explanation:
Consecutive means beside. Numbers 2 and 3 are consecutive integers. Given this question, numbers 6, 8, and 9 could possibly be the answer. However, we don't know this, so let's represent the 6 as x, 7 as x+1. 9 is x+2. We know when these are added together the sum is 57, so 3x+3 should be 57. Now, solve as a normal algebraic question.
100 POINYS AND BRIANLIST
Answer: See below
Step-by-step explanation:
Let A represent an adult who visited a therapist
Let B represent an adult who used a non-prescription antidepressant
Given:
P(A) = 0.28 P
P (B) = 0.43
P(A Intersection B) = 0.22
a) P(B ∩ A) = P (B ∩ A) / P(A) = 0.22/0.27
P(B | A) = 0.79 or 79%
b) P(A ∩ B) = P (A ∩ B) / P(B) = 0.22/0.4.3
P(A | B) = 0.51 or 51%
Answer:
(a) 44.44%
(b) 71.43%
Step-by-step explanation:
Let A = adults who visited a therapist.
Let B = adults who used antidepressants.
Therefore:
P(A) = 0.28P(B) = 0.45P(A ∩ B) = 0.20Part (a)[tex]\boxed{\begin{minipage}{5 cm}\underline{Conditional Probability formula}\\\\A given B:\\\\$\sf P(A|B)=\dfrac{P(A \cap B)}{P(B)}$\\\end{minipage}}[/tex]
To calculate the probability that an adult visited a therapist (Event A) during the past year, given that he or she used antidepressants (Event B), use the conditional probability formula for A given B:
[tex]\implies \sf P(A | B)=\dfrac{PA \cap B)}{P(B)}[/tex]
[tex]\implies \sf P(A | B)=\dfrac{0.2}{0.45}[/tex]
[tex]\implies \sf P(A | B)=0.444444...[/tex]
[tex]\implies \sf P(A | B)=44.44\%\;\; (nearest\; hundredth)[/tex]
Part (b)[tex]\boxed{\begin{minipage}{5 cm}\underline{Conditional Probability formula}\\\\B given A:\\\\$\sf P(B|A)=\dfrac{P(A \cap B)}{P(A)}$\\\end{minipage}}[/tex]
To calculate the probability that an adult used antidepressants (Event B), given that he or she visited a therapist (Event A) during the past year, use the conditional probability formula for B given A:
[tex]\implies \sf P(B | A)=\dfrac{P(A \cap B)}{P(A)}[/tex]
[tex]\implies \sf P(B | A)=\dfrac{0.2}{0.28}[/tex]
[tex]\implies \sf P(B | A)=0.714285714...[/tex]
[tex]\implies \sf P(B | A)=71.43\%\;\; (nearest\; hundredth)[/tex]
HOW DO I DO THIS[tex]j[/tex]
Answer:
times them
Step-by-step explanation:
all the numbers
A rectangular prism has a length of 10 in., a width of 2 in., and a height of 3 1/2 in. The prism is filled with cubes that have edge lengths of 1/2 in.How many cubes are needed to fill the rectangular prism
Solution:
Step-1: Find the volume of the rectangular prism.
Volume of rectangular prism: LBH=> Volume of rectangular prism: (10)(2)(3 1/2)=> Volume of rectangular prism: (10)(2)(3.5)=> Volume of rectangular prism: (2)(35)=> Volume of rectangular prism: 70 in³Step-2: Find the volume of the small cube.
Volume of cube: L³=> Volume of cube: (1/2)³=> Volume of cube: (1³/2³)=> Volume of cube: (1/8)Step-3: Divide.
70 ÷ 1/8 => 70 x 8=> 560 cubesThus, 560 cubes are needed to fill the rectangular prism.
How to find angles C and D.
Answer:
c = 21º
d = 100º
Step-by-step explanation:
In questions like this, always find the angles you can find and it will help you find more and more.
So let's start by finding angle e. We know that the sum of the angles in any triangle is equal to 180. So let's do 180 - (20 + 20) = 140
angle e = 140º
Now we don't know either C or D and are unable to find them with only e, so let's find other angles to help us. The 4 angles that aren't known at each corner of the square are easy to find, as we know for sure that they fully equal to 90º. So 90 - 20 = 70º. Both angles at the bottom corners = 70º. Now for the top corners: top left = 90 - 30 = 60º and top right = 90 - 40 = 50º.
As well as this, we can find a and b as well, but I think you already figured that out. angle a: 180 - (30 + 40) = 110º, angle b: 360 - (140 + 110) = 209º
Now we can figure out c and d, because we know that the sum of all angles in any quadrilateral is 360º. So the trapezium on the left, angle c: 360 - (70 + 60 + 209) = 21º. And finally right trapezium, angle d: 360 - (70 + 140 + 50) = 100º
what is thisssss hellooo
Answer:
I think your answer is 73".
I think it will help you
Learning POST-Qunz Greatest Common Factor - Item 31123 Ques Drag each pair of numbers to show if their greatest common factor (GCF) is less than 6, equal to 6, or greater than 6 CLEAR CHE 8 and 20 18 and 45 4 and 10 12 and 28 12 and 30 16 and 24 GCF is less than 6. GCF is equal to 6. GCF is greater than 6. DRAG AND DROP ITEMS DRAG AND DROP ITEMS HERE DRAG AND DROP ITEMS HERE be here to search 昌 52°
The common factors for 24,36,12 24 , 36 , 12 are 1,2,3,4,6,12 1 , 2 , 3 , 4 , 6 , 12 . The GCF (HCF) of the numerical factors 1,2,3,4,6,12 1 , 2 , 3 , 4 , 6 , 12 is 12 .
Write an equation of the form y = mx for the line shown below. If appropriate, use the decimal form for the slope.
Answer:
y=3/4x
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(3-(-3))/(4-(-4))
m=(3+3)/(4+4)
m=6/8
m=3/4
y-y1=m(x-x1)
y-(-3)=3/4(x-(-4))
y+3=3/4(x+4)
y=3/4x+12/4-3
y=3/4x+3-3
y=3/4x
Evaluate −2x2−4x+3 when x=−2.
Answer:
-2 x 2 - 4x + 3
If x = -2, then . . .
-2 x 2 -(-4 x -2) + 3
-2 x 2 + 8 + 3
The answer is 7
I know this because of
( )
Exponents
x or /
+ or -
-2x2-4(2)+3 = 7 because x=3 so,
-2x2-8+3
7
i need help on this question
Answer:
Step-by-step explanation:
∠WTX = ∠WUV (facing same arc WV)
9x + 18 = 15x
6x = 18
x = 3
In ΔXUV,
∠VXU = 180 - 15x - (3x + 21)
= 180 - 18x - 21
= 159 - 18(3)
= 159 - 54
= 105°
• 3 skittles are red • 6 skittles are green • 3 skittles are blue A skittle will be randomly selected from the bag. What is the probability in decimal form that the skittle selected will be green?
Answer:
13.4
Step-by-step explanation:
You multiple all of numbers and divide it by 4
Answer:
The probability of pulling out a green skittle in decimal form is 0.5
Step-by-step explanation:
Hope that helps
Rong Huang can buy 4 books with 2/9 of his money. He can buy another 8 such books and 2 identical bags with the rest of his money. How many such bags can he buy with the original sum of money?
Step-by-step explanation:
remember, that a/a = 1, and this is always the "whole" in such fraction scenarios.
in our case here : 9/9 or 3/3.
4 books for 2/9 of his money.
8 books for then 2× 2/9 = 4/9 of his money.
that is together
12 books for 6/9 = 2/3 of his money.
that leaves 3/9 = 1/3 of his money for the 2 identical bags.
so, 1/3 of his money for 2 bags.
how many bags for the whole (3/3) money ?
1/3 × x = 3/3
x = 3
he could have bought 3×2 = 6 bags with the original sum of money.
Help me! Please.✅✅✅✅✅✅
Answer:452.38934211693
Step-by-step explanation:
Can anyone help me solve this series problem?
Answer:
32 by using triangle taerem
find the cardinality of x , if x={-n,...,-2,-1,0,1,.....n}
Graph the following function: y=−sec(x+π/4)+2
Question 3
It takes 2 2 hours to type a 7-page report. It takes / hour to photocopy the 11 copies of the report.
How long did it take to complete the report? (Tick appropriate box)
0 4 Hours
3 Hours and 45 minutes
O 2 Hours and 45 minutes
Answer:
3 Hours and 45 minutes
Step-by-step explanation:
2 hours and 30 minute 11/4 is 1 hour and 15 minutes add that and its get 3/45
Maria has 7 gallons of water. Josh has 24 quarts of water. How many more cups of water does Maria have than Josh?
Answer: Maria has 16 more cups of water than Josh
Step-by-step explanation:
Answer:
38.51
Step-by-step explanation:
1 gal: 19.21 cups
7 gal x 19.21 cup = 134.51 cups
1 quart: 4 cups
24 x 4 = 96 cups
134. 51 - 96 = 38.51 cups
Have an amazing day!
PLEASE RATE!
Please help meeeeeee
Answer:
a) 45°=x
b) not
................
What is the perimeter of the rectangle?
Answer:
12
Step-by-step explanation:
Answer:
The perimeter is the outside of the rectangle
Step-by-step explanation:
You see this by looking at the outside and the answer is 4 by 3
Brainliest if correct
Answer:
[tex]\frac{2}{3} + \frac{1}{5} = \frac{10}{15} +\frac{3}{15} = \frac{13}{15}[/tex]
PLEASE BRANLIEST ANSWER IS CORRECT I CHECKED
Step-by-step explanation:
First, find the least common denominator which is 15.
[tex](\frac{5}{5})\frac{2}{3} + (\frac{3}{3})\frac{1}{5}[/tex]
When we multiply by 5/5 or 3/3 we are not changing the value of the fraction, just turning the denominator into one which we can work with the other fraction's denominator.
After simplification:
[tex]\frac{10}{15} + \frac{3}{15}[/tex]
Now we can add:
[tex]\frac{13}{15}[/tex]
Answer:
13/15
Step-by-step explanation:
because 5 x 2=10 3 x 1=3
5 x 3=15 5 x 3=15
10/15+3/15= 13/15
please help asap
perform the indicated operation. Write the answer in the form a+bi.
(3-10i)(2+4i)
20 points
Answer:
46 -8i
Step-by-step explanation:
Multiplication of complex numbers is done in a fashion similar to multiplication of any binomials. The difference is that i² = -1, so some terms can be combined.
(3 -10i)(2 +4i) = 3(2 +4i) -10i(2 +4i)
= 6 +12i -20i -40i² = 6 -8i +40
= 46 -8i
_____
Your calculator may be able to help.
1. what is the value of 8:3 = 24:x
Answer:
x = 9
Step-by-step explanation:
8 : 3 = 24 : x
=> 8/3 = 24/x
=> x = 24 x 3 / 8
=> x = 3 x 3
=> x = 9
A. Fill in the missing even or odd numbers.
- 16
1) 6, 8, 10,
2) 38, 42, 46,
58
3) 80, 74, 62, 56,
4) 61, 63, 65, _ 71
5) 109, 107, 105,99
1) 12, 14
This is the answer because each increasing number was increased by 2, so if you add 2 to 10, you'd get 12. If you add 2 to 12, you would get 14.
2) 50, 54
Same explanation as above but for the number 4.
3) 68, 50
Same explanation as 1, but with subtracting the number 6.
4) 67, 69
Same as number 1
5) 103, 101
Same as number 3 but subtracting the number 2
Hope this helps!!! :)
my equation is - 3 = X + 8
Answer:
X=-11
Step-by-step explanation:
Isolate the varible. Substract 8 on both sides to get X equals -11
Pls help!!! The problem is in the photo.