Find the vertex, focus, and directrix of the parabola whose equation is given below. y-7=1/8(x-2)^2
Answers
Answer:
Step-by-step explanation:
Related Questions
15.6<2.7(z-1)-0.6 please solve
Answers
Answer:
z > 7
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityStep-by-step explanation:
Step 1: Define
15.6 < 2.7(z - 1) - 0.6
Step 2: Solve for z
[Addition Property of Equality] Add 0.6 on both sides: 16.2 < 2.7(z - 1)[Division Property of Equality] Divide 2.7 on both sides: 6 < z - 1[Addition Property of Equality] Add 1 on both sides: 7 < zRewrite: z > 7Here we see that any value z greater than 7 would work as a solution to the inequality.
Select the correct expressions. Identify the equivalent expressions of 4(2x + x – 3) – 3x + 3 by substituting x = 2 and x = 3.
Answers
Answer:
I think its 4(3x – 3) – 3x, 9x + x - 9, and 9x - 1
Step-by-step explanation:
Kermit The Frog could eat 8 flies in 30 minutes. How long would it take Kermit to eat 20 flies? (write the answer in minutes ¬¬¬example. 225 minutes)
Answers
Answer:
75 minutes
Step-by-step explanation:
PLEASE HELP
Jason has a business that prints posters. He is working on an order for printing 1500 posters. He only has 400 posters left to print to complete the order.
Jason will only leave for the day if he has printed
7/10 of the posters for the order.
Can he leave for the day right now?
A. No! Jason has only printed 27/100 of the posters needed.
B. Yes! Jason has printed 73/100 of the posters needed.
С. Yes! Jason has printed exactly 7/10 of the posters needed.
D. No! Jason has only printed 29/50 of the posters needed
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Answer:
B. Yes! Jason has printed 73/100 of the posters needed.
Step-by-step explanation:
7/10(1500) = 1050 minimum to print
1500-400 = 1100 printed
1100/1500 = 73/100
what is twenty multiplier by
five
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20+20+20+20+20=100
Find the area of the parallelogram. (simplify your answer)
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a = 13 . 7
a = 91 cm^2
A small town has about 5000 people. A random sample of 100 people finds that 25 are in
favor of a new park. Estimate the total number out of 5000 who are in favor of the park
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Answer:
250
Step-by-step explanation:
Fluffy ate 1/2 of a carrot and still had 1/5 left how much did he eat
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He ate 1/2 of the carrot
---
hope it helps
sorry if it doesn't
Using the information from the problem tell: Perimeter or Area of Old (Original) Figure Perimeter or Area of New Figure Make a statement about the change in Area or Perimeter Please numbers your answer 1 to 3, so I know what question you are answering
Answers
Answer:
The perimeter of the given parallelogram increases to four times the current value
Step-by-step explanation:
The given dimensions of the parallelogram are 8 cm by 10 cm
Therefore, the perimeter of the given parallelogram, 'P₁', is found as follows;
P₁ = 2 × 8 cm + 2 × 10 cm = 16 cm + 20 cm = 36 cm
The perimeter of the given parallelogram, P₁ = 36 cm
When each side of the parallelogram are multiplied by 4, we get;
The new sides of the parallelogram = 4 × 8 cm = 32 cm and 4 × 10 cn = 40 cm
The new perimeter of the parallelogram, P₂ = 2 ×32 cm + 2 × 40 cm = 144 cm
Therefore, the perimeter, P₂ is P₂/P₁ times larger than the perimeter P₁
P₂ = (144 cm)/(36 cm) × P₁
∴ P₂ = 4 × P₁
The change in the perimeter after multiplying each side of the given parallelogram by 4 is that the perimeter of the given parallelogram increases to four times the current value
What is the length of EF and the measure of D? A. 35; 47° B. 28; 43° C. 21; 47° D. 21; 43
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Answer:
What is the length of EF? 28
What is the measure of D? 47 degrees
Anybody know how to solve this?
Answers
Answer:
1
Step-by-step explanation:
Anything to the 0 power is 1.
Hope this helps!
:)
Answer:
the answer is one.
Step-by-step explanation:
anything to the power of zero is one
Find 2(6)-3 ..............................
Answers
Answer:
Its 9
Step-by-step explanation:
(2)(6)−3
=9
teams of four are competing in a quarter-mile relay race. Each runner must run the same exact distance. what is the distance each teammate runs?
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Explain how to find 40% of a number using friendly percents
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Answer:
here's your solution
=> percent means divided by 100
=> to find 40% of a number ,
=> we have to think for a number here it
is not given
=> so, we have to assume it , then let the
number be X
=> now ,. equation= 40/100*x
=> 40/100*X
hope it helps
Pls help I will give brainliest
I need help with question#15
Answers
Answer: I think it’s c
Step-by-step explanation:
-7.1p - (-2q - 4.4)
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Answer and Step-by-step explanation:
-7.1p + 2q + 4.4
This is the answer to the expression.
When a negative gets distributed to another negative, it becomes a positive.
#teamtrees #PAW (Plant And Water)
5. The length of a rectangle is 8 cm more than four times the width. If the perimeter of the rectangle is 86 cm,
what are its dimensions?
a) Write the system of equations:
b) Solve the system to find the dimensions:
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b) Width = 384, 384+8= 392. Length= 392
Please help, Thanks
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Answer:
Step-by-step explanation:
There are two. This can be factored which will find both of them.
y = (x - 3)(x - 1)
x - 3 = 0
x - 3 + 3 = 3
x - 1 = 0
x - 1 + 1 = 1
x = 1
The zeros are (3,0) and (1,0)
6/10÷3/4=
Solve the question
Answers
Answer: 24/30
Step-by-step explanation:
When you divide fraction, you use KCF which stands for keep, change, flip.
So you KEEP 6/10, CHANGE ÷ to x and FLIP 3/4 to 4/3 and it became : 6/10 (times) 4/3 so 6x4 is 24 And 10x3 is 30. 24/30
I hope this help!! :)
Which choice shows 4.13 rounded to the nearest tenth?
O A. 4.0
OB. 4.1
O c. 4.14
O D. 4.2
O E. 4.130
Answers
Its B
Step-by-step explanation:
No explanation, just guessing
Whitch equation matches the graph
A y=3x-8
By=-2x+1
C y=-4x-1
Answers
Help please 30 points
Answers
Answer:
(22,0)
Step-by-step explanation:
y=mx+b
y=-2/3x+44/3
0=-2x/3+44/3
x=22
(22,0)
A polling organization uses random digit dialing of registered voters in a county to gauge the voters’ opinions about a ballot initiative to increase taxes that would pay for a new county park. The polling organization will investigate whether there are differences in how voters respond based on the highest level of education completed. The phone survey asked the voters contacted whether they approve or disapprove of the tax increase. The voters were also asked to indicate their highest level of education completed: high school, bachelor’s degree, or master’s degree. Which of the following is the appropriate test to investigate whether there is an association between opinion about the ballot initiative and highest level of education completed?
А. A two-sample t-test for a difference between means
B. A two-sample z test for a difference between proportions
C. A chi-square test of homogeneity
D. A chi-square test of independence A chi-square goodness-of-fittest
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Answer:
Its D
Step-by-step explanation:
The word association is related to independence test
Can someone explain how to get the answer?
Answers
A = 19 . 4
A = 76
Answer:
A = 76
Step-by-step explanation:
Formula of the area of a triangle: [tex]A=\frac{h*b}{2}[/tex]
Formula of a rectangle: [tex]A=l*w[/tex]
So starting with the triangle...You know that the height of the triangle is 7, and the base of the triangle is 8 because the base of the rectangle is the same as the triangle's base...
Now using the formula of the triangle...
A = [tex]\frac{7*8}{2}[/tex]
= 28
Now find the area of the whole retangle...The length of the rectangle is 13 because 7+6=13; the width is 8
Now using the formula of the rectangle...
A = [tex]13*8[/tex]
= 108
Now that you have the areas of both the triangle and the retangle...Do subtraction to find the shaded area...
[tex]108 - 28 = 76[/tex]
what is the aproximite area of a circle with a diameter of 50 cm use 3.14 pi
Answers
Answer:
78.5
Step-by-step explanation:
In the square pyramid shown below, the diagonal length FC = 16√2 centimeters and the height of the pyramid is 7 centimeters. Find the slant height AD of the pyramid, to the nearest tenth. Show your work with reasoning for each step.
Answers
Applying the Pythagorean theorem, the slant height, to the nearest tenth is: 10.6 cm.
What is the Pythagorean Theorem?The Pythagorean theorem states that, if a and b are legs of a right triangle, the third side (hypotenuse), c, would be: c = √(a² + b²).
Thus, we have the following:
Height of pyramid (a) = 7 cm
b = [(16√2)/√2]/2 = 8
Slant height (c) = ?
Applying the Pythagorean theorem, we have:
c = [(7² + 8²)
c = √(49 + 64)
c = 10.6 cm.
Therefore, applying the Pythagorean theorem, the slant height, to the nearest tenth is: 10.6 cm.
Learn more about the Pythagorean theorem on:
https://brainly.com/question/654982
Given f(x)=(1/2x)-5, find f^-1(x).
Answers
Answer:
[tex]f^{-1}[/tex](x)=2x+10
Step-by-step explanation:
f(x)=[tex]\frac{x}{2}[/tex]-5
Let y= [tex]\frac{x}{2}[/tex]-5
y= [tex]\frac{y}{2}[/tex]-5
x+5= [tex]\frac{y}{2}[/tex]
Both side multiple 2,
2x+10=y
[tex]f^{-1}[/tex](x)=2x+10
BRAINLIEST
VOLUME OF A SPHERE
Answers
Answer:
[tex]\displaystyle V = 972 \pi \ ft^3[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightGeometry
Volume of a Sphere Formula: [tex]\displaystyle V = \frac{4}{3} \pi r^3[/tex]
V is volumer is radiusStep-by-step explanation:
Step 1: Define
Radius r = 9 ft
Step 2: Solve for V
Substitute in r [Volume of a Sphere Formula]: [tex]\displaystyle V = \frac{4}{3} \pi (9 \ ft)^3[/tex][Volume] Evaluate exponents: [tex]\displaystyle V = \frac{4}{3} \pi (729 \ ft^3)[/tex][Volume] Multiply: [tex]\displaystyle V = 972 \pi \ ft^3[/tex]Factorise fully 21xcubed -49xsquared
Answers
Answer:
7x²(3x-7)
Step-by-step explanation:
21x³ - 49x²
7(3x³ - 7x²)
7x²(3x - 7)
4. A scale measuring trust inthe media was administered to a random sample of 114 Democrats and 112 Republicans. The researcher finds that Democrats average a score of 8.5 on this scale, while Republicans average a score of 7.8. Together the Democrats and Republicans have a pooled standard error of .32. Is there a statistically significant difference between Democrats and Republicans in their level of trust in the media (at the alpha
Answers
This question is incomplete, the complete question is;
4. A scale measuring trust inthe media was administered to a random sample of 114 Democrats and 112 Republicans. The researcher finds that Democrats average a score of 8.5 on this scale, while Republicans average a score of 7.8. Together the Democrats and Republicans have a pooled standard error of .32. Is there a statistically significant difference between Democrats and Republicans in their level of trust in the media (at the alpha = .05 level )
Answer:
p-value 0.0297
Hence, p value ( 0.0297 ) is LESS THAN ∝ ( 0.05 )
Therefore, this is sufficient evidence to conclude that there is difference between Democrats and Republicans in their level of trust in the media.
Step-by-step explanation:
Given the data in the question;
H₀ : u₁ = u₂
Hₐ : u₁ ≠ u²
test statistics
t = x - u / s
we substitute
t = ( 8.5 - 7.8 ) / 0.32
t = 0.7 / 0.32
t = 2.1875
∝ = 0.05
degree of freedom = n₁ + n₂ - 2 = 114 + 112 - 2 = 224
so
{t[tex]_{\alpha /2[/tex], [tex]_{df[/tex] } = {t[tex]_{0.025[/tex], [tex]_{224[/tex] } = 1971
p-value = 0.02974
p-value 0.0297
Hence, p value ( 0.0297 ) is LESS THAN ∝ ( 0.05 )
Therefore, this is sufficient evidence to conclude that there is difference between Democrats and Republicans in their level of trust in the media.