Answer:
9-16y
Step-by-step explanation:
Answer:
(3 + 2y)(3 - 2y)Step-by-step explanation:
Use formula:
a² - b² = (a + b)(a - b)Factor:
9 - 4y² = 3² - (2y)² = (3 + 2y)(3 - 2y)A researcher randomly asked 284 people how they prefer their eggs cooked and if they prefer orange juice or coffee with their breakfast. The two-way table displays the data.
Suppose a survey respondent is randomly selected. Let event F = fried eggs and let event O = orange juice. What is the value of P(O|F)?
StartFraction 22 Over 126 EndFraction
StartFraction 50 Over 158 EndFraction
StartFraction 41 Over 126 EndFraction
StartFraction 41 Over 91 EndFraction
Answer:
41/91
Step-by-step explanation:
edggggge
Explain why the triangles are similar. Then find the value of x.
Answer:
x=12
Step-by-step explanation:
the 2 triangles are proportionately identical.
the larger one is 1/3 larger, so x would be 9 plus 1/3 of 9- 12
If Sara have 3 Appels and hany have 20 apples how many we have in total
Answer:
23
Step-by-step explanation:
20+3=23
What is the area of this figure?
(Use = 3.14 and round to two decimal places.)
0.1 cm
Answer:
the area of above figure is 0.31 cm^2
Answer:
A ≈ 0.03 cm²
Step-by-step explanation:
Area of a circle = πr²,
where π (pi) ≈ 3.14 or 22/7 as a close fraction is the ratio (factor) between the circumference and the diameter (2 times / twice the radius),
and r² is the radius squared or multiplied by itself once.
Given that the radius is 0.1 cm in this situation,
the area of this circle is as follows:
A = πr² → A = π (0.1)² cm² → π(0.01) cm² → 0.01π cm² →
(1/100)(π) cm² → π / 100 cm² → 3.14 / 100 cm² →
0.0314 cm² ≈ 0.03 cm²
I'm so confused on this can someone please help and explain it to me!
Answer:
A's coordinates are:
A. (-4, 3)
Step-by-step explanation:
Because the x always goes first,
So that will mean -4 will go first.
After you have -4 down, you will see that A's point on the graph is (-4, ?)
To answer the ?, you will have to check the y.
Because remember, The x-coordinate always comes first, followed by the y-coordinate.
So, it will be (-4, 3)
and 3 will be the fill in for y.
I hope this helps :)
HELP ME BECAUSE I HAVE NO IDEA HOW TO DO THIS
Answer:
3
Step-by-step explanation:
ill reply to this gimmie a moment
Answer:
(-∞, 3] or x[tex]\leq[/tex]3
Step-by-step explanation:[tex]inf[/tex]
we treat it like a normal linear problem.
We can add 3 on both sides to get:
-10w[tex]\leq[/tex]-30
we can divide both sides by -10 to get...
w[tex]\leq[/tex]3
Or if nessessary, the interval notation is (-∞, 3]
Hope this helped!
help a b outttttttt please
Answer:
The two numbers are 9 and 11
Which of the following equations models the same function as 2x-3y=6 A, y=2/3x-15 B, y=-2/3x-2 C, y=-2/3x-15 D, y=2/3x-2
Answer:
D. y= 2/3x-2
Step-by-step explanation:
y=6-2x/-3
-2+2/3x
2/3x-2=y
find the value of given expression
[tex] \sqrt{395 \times 395} [/tex]
anyone wanna play chess ?
Answer:
√{395×395}=√395²=395 is your answer
Answer:
[tex] \sqrt{395 \times 395} [/tex][tex] \sqrt{395} \times \sqrt{395} [/tex][tex]395[/tex]Did I do the math right? Is it D?
Answer:
i think
Step-by-step explanation:
Consider the equation 1/4(x – 5) = (y – 2)^2. What is the equation of the directrix?
A.) x = 4.0000
B.) x = 4.7500
C.) x = 4.6250
D.) x = 4.9375
Answer:
D
Step-by-step explanation:
Find the vertex
¼(x-5) = (y-2)²
x-5 = 4(y-2)²
x = 4(y-2)² + 5
This is a right-opening parabola with vertex (5,2).
focal length p = 1/(4·coefficient of y²) = 0.0625
directrix: x = 5-p = 4.9375
D
The equation of directrix of the parabola will be x = 4, i.e. Option A.
What is directrix ?Directrix is a straight line distance to which from any point of a conic section is in fixed ratio to the distance from the same point to a focus. The directrix is perpendicular to the axis of symmetry and does not touch the parabola.
We have,
[tex]\frac{1}{4} (x - 5) = (y - 2)^2[/tex]
Now,
Rewrite as,
[tex](x - 5) = 4(y - 2)^2[/tex]
Now,
[tex]x= 4(y - 2)^2+5[/tex]
Now,
Comparing it with the vertex form,
i.e.
[tex]x = a ( y - h )^ 2 + k[/tex]
Vertex of parabola = (2, 5),
So,
Focus at (a, 0),
So,
Focus of the parabola = (4, 0),
i.e., a = 4
Now,
The Equation of directrix is given by x = a
So,
The equation of the directrix of this parabola,
x - a = 0,
i.e.
x - 4 = 0
⇒
x = 4
Hence, we can say that the equation of directrix of the parabola will be x = 4, i.e. Option A.
To know more about directrix click here
https://brainly.com/question/4333610
#SPJ2
Jabar earns $5 for the first 10 pounds of newspaper he recycles, then $0.25 for each additional pound. Which expression represents the amount he
earns for recycling p pounds of newspaper if p > 10?
A
5 +0.25 (p - 10)
B
(5 +0.25) P
с
5 + 0.25p
D
5 (10) +0.25p
help me simplify this
Answer:
Da^^ good luck that looks hard
Step-by-step explanation:
Write an equation for the hanger diagram and then us the sketch to show how to solve the equation algebraically.
Step-by-step explanation:
Since there are 3 w's and a 1 on one side and 7 1's on the other and the hanger diagram shows they are even, we can set them equal to each other.
3w + 1 = 7 Subtract 1 from both sides
3w = 6 Divide 3 from both sides
w = 2
CAN SOMEONE PLEASE HELP WITH THIS ILL GIVE YOU BRAINLY IF YOU GET IT RIGHT !!!!
Answer:
20%
Step-by-step explanation:
4+5+3 equals 12. in all, all of the frequencies combined is 30. because of that, it equals 20%. pls give brainliest
Two fifth grade classes are attending an amusement park as a field trip. Their teachers purchased the tickets for the class and the parent chaperones. Mrs. Lin purchased 3 child tickets and 17 adult tickets, which cost a total of $558. Mr. Shepherd purchased 3 child tickets and 11 adult tickets, paying a total of $378. What are the ticket prices?
Answer:
1 Adult ticket=$35
1 Children ticket=$20
Step-by-step explanation:
21C+15A=945
6C+6A=330
we find adult tickets 1st
42C+30A=1890
42C+42A=2310
12A=420
A=35
we will find children ticket next
42c+30a=1890
30c+30a=1650
12c=240
C=20
A rectangular wall is 4x-5 units high and 2x+7 units long. Which polynomial best represents the area of the wall in square units?
Answer:
8x^2 + 18x - 35.
Step-by-step explanation:
Area = (4x - 5)(2x + 7)
= 8x^2 + 28x - 10x - 35
= 8x^2 + 18x - 35.
I need help with question can anyone help me?
Answer:
B
Step-by-step explanation:
Simplify using order of operations
(6 - 3)^2
1. 8
2. 6
3. 9
(x-1) (x+2) (x-3)= muszę wykonać działanie wyznaczyć iloczyn
Answer:
x^3-2x^2-5x+6
Step-by-step explanation:
Drag the tiles to the boxes to form correct pairs.
Not all tiles will be used.
Match each binomial with its factors.
Answer:
1 .4x2-9= 2x+3,2x-3
2 .16x2-1=4x-1,4x+1
3 .16x2-4=4(2x+1)(2x-1)
4 .4x2-1=(2x+1)(2x-1)
Step-by-step explanation:
16x² − 1 = (4x − 1)(4x + 1) ; 16x² − 4 = 4(2x + 1)(2x − 1); 4x² − 1 = (2x + 1)(2x − 1) ;
4x² − 9 = (2x + 3)(2x − 3)
16x² − 1 is the difference of squares. This is because 16x² is a perfect square, as is 1. To find the factors of the difference of squares, take the square root of each square; one factor will be the sum of these and the other will be the difference.
The square root of 16x² is 4x and the square root of 1 is 1; this gives us (4x-1)(4x+1).
16x² − 4 is also the difference of squares. The difference of 16x² is 4x and the square root of 4 is 2; this gives us (4x-2)(4x+2). However, we can also factor a 2 out of each of these binomials; this gives us
2(2x-1)(2)(2x+1) = 2(2)(2x-1)(2x+1) = 4(2x-1)(2x+1)
4x² − 1 is also the difference of squares. The square root of 4x² is 2x and the square root of 1 is 1; this gives us (2x-1)(2x+1).
4x² − 9 is also the difference of squares. The square root of 4x² is 2x and the square root of 9 is 3; this gives us (2x-3)(2x+3).
Answer:
Have a great rest of your day :)
Step-by-step explanation:
How many faces does the solid figure made from the net below have?
43
Answer:
43
Step-by-step explanation:
Can you guys help me? Best answer gets branliest
Answer:
its less than one i think cause ive answered this same question not to long ago
Step-by-step explanation:
Answer:it’s greater than
Step-by-step explanation: because in the measures of DEF those are bigger
A bank offers an investment account with an annual interest rate of 1.27% compounded quarterly. Heather invests $3400 into the account for 3 years.
(A) Assuming no withdrawals were made, how much money is in Heather's account after 3 years?
(B) How much interest is earned on Heather's investment after 3 years?
Sylvie needs $110 for a concert ticket. She already has $16 and she can earn the rest by working 10 hours at her job. If h represents her hourly earnings, which of the following equations can be solved to find Sylvie’s hourly earnings? Select all that apply.
(Two Answers!)
A. 110 – 16 = 10h
B. 110 = 16h + 10
C. 16 = 110 – h
D. 110 = 16 + 10h
E. 110 + 16 = 10h
Note: I already know one of them is D, I don't know what the other one is though.
what is the area of the following shape
Answer:
30 ft^2
Step-by-step explanation:
Break the figure into smaller pieces:
5*2=10
10*2=20
Add the areas
20+10=30
The are of the figure is 30 ft^2
Which graph represents the solution set of - 4x - y<-6?
Answer:
Step-by-step explanation:
Where are the graphs?
HARD QUESTION 100 POINTS
Answer:
2
There is a picture the website is Math-way I use it all the time to help out or just to check my answers.
Answer:
i was abt to answer but too late prolly
Step-by-step explanation:
if u still wanna know,
Natalie and Breanna decide to buy chocolates and giant sour keys for the class. They buy 130 giant
sour keys and chocolates combined. If they spend a total of $66.85 in total, and chocolates cost $0.22
and giant sour keys cost $1.07, how many of each did they buy?
please explain step by step do you can!:)
Answer:
148
Step-by-step explanation:
Does the graph above show a relation, a function, both a relation and a function, or neither a relation nor a function?
Answer:
The graph shows a relation and a function
Step-by-step explanation:
Because there is one value of y for every value of x, this is a relation and a function.
Answer:
relation because the x does not repeat