Which expression has a value of 5/6?
Select the graph that correctly represents ƒ(x) = –2(x + 4)2 – 1.Find the equation of the parabola with its focus at (3,4) and its directrix y = 0.
Answer:
Equation of parabola: 8*(y - 2) = (x - 3)^2
or
y = (1/8)*(x - 3)^2 + 2
Step-by-step explanation:
focus at (3,4) and its directrix y = 0.
Focus equation: (h, k + c) = (3, 4)
Directrix equation y = k - c = 0
so h = 3, k + c = 4, k - c = 0
Solve the system : k + c = 4 and k - c = 0
add the equations together: k + c + k - c = 4 + 0
2k = 4
k = 2
so k + c = 4, 2 + c = 4, c = 2
4c (y - k) = (x - h)^2
4*2 *(y - 2) = (x - 3)^2
8*(y - 2) = (x - 3)^2
If sin 0º = 0, then csc 0°=
(check image)
Answer:
Step-by-step explanation:
sin(0) = 0/2
sin(30) = 1/2
sin(45) = [tex]\sqrt{2}[/tex]/2
sin(60) = [tex]\sqrt{3}[/tex]/2
sin(90) = [tex]\sqrt{4}[/tex]/2
cos(90) = 0/2
cos(60) = 1/2
cos(45) = [tex]\sqrt{2}[/tex]/2
cos(30) = [tex]\sqrt{3}[/tex]/2
cos(0) = [tex]\sqrt{4}[/tex]/2
notice that sin and cos repeat, but in reverse
the answer for your questions is in there.
Please please help I really need it y today is the my last day and I have to do it in class.
Answer:
Step-by-step explanation:
1. 15 points
2. mode-50 basically the number with the most points
3. median is 45
Can you please help me figure out where to start so I can teach this to my child?
Answer:
all of the brackets first
Answer:
Step-by-step explanation:
Those consecutive angles must sum to 180 degrees.
7x+9+7y-4=180
7x+7y+5=180
7x+7y=175
x+y=25
x=25-y
We also have
11x-1+2y+5=180
11x+2y+4=180
11x+2y=176, using x=25-y that we found above makes this
11(25-y)+2y=176
275-11y+2y=176
-9y+275=176
-9y=-99
y=11, and since x=25-y
x=25-11
x=14
Finally
z+7x+9=180
z+7x=171
z=171-7x, we found that x=14 earlier so
z=171-7(14)
z=171-98
z=73
So the three values are
x=14, y=11, and z=73 degrees.
simplify cot 0/ csc 0
Answer:
[tex]cos(x)[/tex]
Step-by-step explanation:
Let's recall the definition of the trigonometric identities in place:
[tex]cot(x)=\frac{1}{tan(x)} =\frac{cos(x)}{sin(x)}[/tex] and
[tex]csc(x)=\frac{1}{sin(x)}[/tex]
Then, we substitute and simplify as follows:
[tex]\frac{cot(x)}{csc(x)}=cot(x)*\frac{1}{csc(x)}=\frac{cos(x)}{sin(x)}*sin(x)=cos(x)[/tex]
HURRY PLEASE I WILL MARK BRAINLIEST PLEASEEEEE
The diameter of a monster truck tire is 6 feet. If the truck tire makes 12 revolutions, how far did the truck travel?
Answer:
About 207 inches
Step-by-step explanation:
The circumference of a circle is given by the formula ...
C = πd . . . . . where d represents the diameter
The circumference of the tire is the distance the truck will move when the tire makes one revolution. That distance is ...
C ≈ 3.1416×(66 in) ≈ 207.35
The truck will travel about 207 inches for each revolution of the tire.
I dont understand how do this question.
There is a picture.
9514 1404 393
Answer:
b⁶
Step-by-step explanation:
The question tells you how to work it: use the relations you studied.
Here, you have the power of an expression with an exponent. The exponents multiply.
[tex]\text{Rule: }(a^b)^c=a^{bc}\\\\\text{Appication: }(b^3)^2=b^{3\cdot2}=\boxed{b^6}[/tex]
_____
Additional comment
A coefficient is used to indicate repeated addition: 3x = x + x + x.
An exponent is used to indicate repeated multiplication: x³ = x·x·x.
This is still true when the exponent is applied to an expression with an exponent:
(b³)² = (b³)(b³) . . . . the factor b³ is repeated 2 times as indicated by the exponent 2
Of course, each of these indicates repeated multiplication, so we really have ...
(b³)(b³) = (b·b·b)·(b·b·b) = b·b·b·b·b·b
And this can be simplified using an exponent to show the repeated multiplication:
= b⁶
Then, by going the long way around, we arrive at ...
(b³)² = b⁶
The scale on a map is 1 inch = 40 miles. If two towns are 90 miles apart, how far apart on the map should they be?
please help
Answer: 2.25
Step-by-step explanation: This is because 2.25*40 is 90
Hope this helps and brainliest would be appreciated
Brenda and Sam are going to stay at the hotel for one night. It costs a total of £84 to stay at the hotel for one night. Brenda pays a deposit of £20 towards the total cost. Brenda says to Sam, 'We will share the total cost equally.' How much does each person have left to pay?
Answer:
£32 and £32
Step-by-step explanation:
The computation of the amount that should be left and equally distributed is shown below:
The cost of hotel for one night is £84
Brenda has make a deposit of £20
So, the remaining amount left is
= £84 - £20
= £64
Now this amount should be equally distributed between them i.e. £32 and £32
(3x^2 + 3x + 3) - (x^2 + 2x + 3) =
Answer:
2 to the power of 2 +
Step-by-step explanation:
Distribute
Eliminate redundant parentheses
Subtract the numbers
Combine like terms
Combine like terms... again
Multiply by 1 = 2 to the power of 2 +
Answer:
(32+3+3)−1(2+2+3)(3x^{2}+3x+3)-1(x^{2}+2x+3)
(3x2+3x+3)−1(x2+2x+3)
Simplify
1
Distribute
(32+3+3)−1(2+2+3)(32+3+3)−12−2−32
Eliminate redundant parentheses
(323+3)−12−2−332+3+3−12−2−33
Subtract the numbers
32+3+3−2−2−332+3−12−24
Combine like terms
32+3−12−222+3−25
Combine like terms
22+3−222+16
Multiply by 1
Solution
22+
please help!! I'm probably gonna be spamming sooo
Answer:
12π
is the correct answer
Two bags of carrots cost a total of $4.00. If each bag weighs half a pound, what is the cost, in dollars, per ounce of carrots?
Answer:
1.50
Step-by-step explanation:
Franklin is purchasing replacement equipment for outdoor recess. Mr. DiCanio put in an order totaling $97.23 to purchase 4 playground balls for $17.25 each, a package of 10 jump ropes for $18.75, and 1 Nerf football. How much did the Nerf football cost?
Answer:
Nerf football cost is $9.48.
Step-by-step explanation:
Total order made by Mr. DiCanio = $97.23
A playground ball cost $17.25 each, so that the cost of 4 playground balls can be determined by;
4 playground balls = $17.25 x 4 = $69.0
A package of 10 jump ropes = $18.75
Cost incurred on the items above = $69.0 + $18.75
= $87.75
Thus,
The cost of 1 Nerf football = $97.23 - $87.75\
= $9.48
Therefore, the cost of Nerf football is $9.48
Solve the formula Ax+ By = C for x
Ax+ By = C for x
Ax = C - By
x = (C - By)/A
Done.
Someone please help me ASAP please anyone I need help now
is it < > or = help me please
Answer:
>
Step-by-step explanation:
The profit P, in dollars, of selling x widgets and y gadgets is given by the function P(x, y) = 7x + 3y. Which corner point of the shaded region will maximize the profit?
A. (10, 30)
B. (15, 25)
C. (0, 35)
D. (20, 15)
Step-by-step explanation:
The answer is B
Answers is B
FIND THE AREA (LEAVE EXPLANATION)
i need help right now. report cards are coming in soon and i need to get my grades up
Answer:
x = 10
Step-by-step explanation:
3x - 5 = 2x + 5
3x - 5 + 5 = 2x + 5 + 5
3x = 2x + 10
3x - 2x = 2x - 2x + 10
1x = 10
x = 10
Answer:
I think A
Step-by-step explanation:
3x5=15-5=10
2×5+5=15
So x = 10
Is the closest
if anyone is willing to help me with my math homework I have 8 worksheets I need to get finished by tommorow if anyone is willing to help it would. mean the world to me I'm trying to pass my class thank you in advance!
Answer:
only if I know how, otherwise I'll try and help
Step-by-step explanation:
jeyyyyu I need help with this I will mark me as brallinat
solve for x
solve for x
solve for x
Answer:
ion even kno just tryna get points
Step-by-step explanation:
use g00glek
Answer:
[tex]\frac{3x}{4x} =\frac{3x+7}{5x-8}[/tex][tex]3(5x-8)=4(3x+7)[/tex][tex]15x-24=12x+28[/tex][tex]3x=52[/tex][tex]x=52/3[/tex]----------------------hope it helps...have a great day!!Suppose that weight of adolescents is being studied by a health organization and that the accompanying tables describes the probability distribution for three randomly selected adolescents, where x is the number who are considered morbidly obese. Is it significant to have no obese subjects among three randomly selected adolescents?
Answer:
hello your question lacks some information attached below is the complete question
answer : NO
Step-by-step explanation:
Determine the probability of not selecting an obese subject in 3 trials
= P ( not obese in 3 randomly selected ) = ( 1 - 0.111 )^3
= 0.703
The probability > 0.05
hence it is insignificant therefore the answer is NO
List the shapes in order of area from greatest to least.
Captionless Image
Answer:
Step-by-step explanation:
can you repost with the image
PLEASE help me with this question
Answer:
blue
Step-by-step explanation:
1/3·π·8∧2·8=536.17
(1/3·π·r∧2·h)
Answer:
Step-by-step explanation:
I assume that 16 m is the radius, not a diameter.
f(x) is a function???
Answer:
Yes is just like using the slope intercept form
Step-by-step explanation:
PLEASE HELP ME, I WILL MARK YOU BRAINLIEST!!
Five students came for after-school tutoring. Lin's teacher assigned each of them the same number of problems to complete. Then he assigned each student 2 more problems. 30 problems were assigned in all. Write an equation to the story. Then find the number of problems
originally assigned by the teacher. Be sure to explain how your reasoning.
Answer:
Step-by-step explanation:
Five students= 5x
They all got two more= 5x + 2(5)
5x + 10 = 30
- 10 -10
5x = 20
5
x = 4
How many lines of symmetry does the figure shown have?
Help Please asap please answer correctly
Answer:
Yes
Step-by-step explanation:
Because 9/12 and 6/8 are both equivalent to 3/4 of the total.