What is the graph of each function rule? 2x²– 2
Answers
Step-by-step explanation:
Graph the parabola using the direction, vertex, focus, and axis of symmetry.
Direction: Opens Up
Vertex: (0,−2)
Focus:
[tex] (0 , - \frac{15}{8})[/tex]
Axis of Symmetry:
x
=
0
Directrix: y =
[tex] - \frac{17}{8} [/tex]
Related Questions
Please help. Will give brainliest. Please answer in SIMPLE terms. The book has the answer and solution but it just doesn’t make sense.
Answers
Answer:
250 cm²
Step-by-step explanation:
1 cm : 2 km
1 cm² : 4 km²
1 000 km² ÷ 4 km² = 250 cm²
) Emma already owns 8 hair bands, and additional hair bands are priced at 3 for a dollar.
How much money does Emma need to spend on new hair bands in order to own a total of
47 hair bands?
Answers
Answer:$15.66
Step-by-step explanation:
Which equation is equivalent to 9x+4y=16
Answers
Answer:
8x time 2x= 16
From a point 300 feet above ground in a firetower, a ranger spots two fires in the George Washington National forest. The angle of depression made by the line of sight from the ranger to the first fire is 3oand the angle of depression made by the line of sight from the ranger tothe second fire is 2o. The angle formed by the two lines of sight is 0117. Find the approximate distance between the two fires.
Answers
Answer:
The answer is "[tex]\bold{17456.6 \ ft}[/tex]"
Step-by-step explanation:
Please find the complete question in the attached file.
[tex]\sin \theta = \frac{P}{h}\\\\\to BC =x\\\\\to BD =y\\\\[/tex]
The height of tower (AB) = 300 ft
Distance = CD
[tex]\Delta ABC \\\\\sin \theta = \frac{AB}{AC}\\\\\sin (2.5) = \frac{300}{AC}\\\\Ac= \frac{300}{\sin (2.5)}\\\\AC= 6877.68 \\\\\Delta ABD \\\\\sin \theta = \frac{AB}{AD}\\\\\sin (1.3) = \frac{300}{AD}\\\\AD= \frac{300}{\sin (1.3)}\\\\AC= 1322.33[/tex]
calculating CD :
[tex]CD^2 = AC^2 +AD^2 -2\cdot AC \cdot AD \cdot \cos(117^{\circ}) \\\\CD = \sqrt{(6877.68)^2 +(13223.23)^2 -2\cdot (6877.68) \cdot (13223.23) \cdot \cos(117^{\circ})}\\\\CD =\sqrt{47302482.1824 + 174853811.6329 - 82576463.207}\\\\CD= \sqrt{304732757.02}\\\\CD= 17456.6 \ ft[/tex]
4х – у = 5
3х + y = 9
Answers
Write an equation in standard form for the line that passes through the given points.
(-2-3) (4-7)
Answers
Answer: -3 is the answer!
Step-by-step explanation:
PLSS HURRY!!!
The line f(x) = x is graphed in the xy-coordinate plane.
How does the graph of the function f(x) + 1 compare to the graph of f(x)?
Answers
Answer:
Please check the attached diagram.
Thus, we conclude that:
In the diagram,
The red line represents the parent function f(x) = xThe blue line represents the function f(x) = x+1The blue line indicates that the parent function has been shifted 1 unit upward.
Step-by-step explanation:
Let us recall some transformation knowledge.
We know that
if y = f(x), then y = f(x) + b simply means a transformation of (0, b).
In other words, if we add some constant let say 'b' in the output or y-value, the graph simply shifts upward by b units.
Given that
f(x) = x
so
f(x+1) = x+1 means the parent function f(x) = x has been shifted 1 unit upward.
Please check the attached diagram.
Thus, we conclude that:
In the diagram,
The red line represents the parent function f(x) = xThe blue line represents the function f(x) = x+1The blue line indicates that the parent function has been shifted 1 unit upward.
help help help help help help help help help
Answers
Answer:
x=3√5
Step-by-step explanation:
This is a right angle triangle
So the equation is
2²+x²=7²
x=√7²-2²
x=3√5
Answer:
x=3√5
Step-by-step explanation:
If f(x) =x/2 +8, what is f(x) when x = 10?
O 4
O9
O 13
O 36
Answers
help asap! i’ll give brainliest
Answers
Answer:
question 4. The right answers are 1,3 and 4
Question 5. No they are not balanced.
Step-by-step explanation:
1.
7/9 * 8 = 6 2/9
56/9 = 6 2/9
2.
8 + 11.5 = 20.5
19.5 ≠ 20.5
3.
23.42 - 8 = 15.42
15.42 = 15.42
4.
11 * 8 = 88
88 = 88
5.
40/8 = 6
40/8 ≠ 6
What are the coordinates of the point where the x-axis and the y-axis intersect on a coordiantest plane
Answers
Answer:
(0,0)
Step-by-step explanation:
Jeremy drinks 6 1/2 cups of milk each day. If he has x cups of milk now, how much milk will he have in 3 days? Explain why you choose your answer
a. 3x * 6 1/2
b. x - 3 - 6.5
c. x + 3(-6.5)
d. 3(- 6 1/2) ÷ x
Answers
A
Step-by-step explanation:
cause he drinks 61/2 m8lk per day
2. Rohit has notes of denominations 1000, 500 & 20. He has 40 notes of Rs.20 and 20
notes of Rs.1000. He made a payment of Rs.29300. How many notes of Rs.500 did he have?
a) 12
b) 14
c) 18
d) 17
Answers
Answer:
17
Step-by-step explanation:
To find how many notes of Rs. 500 he has, we need to find out the total value of all the Rs. 500 notes.
Total value of Rs. 20 notes = 20 × 40
= 800
Total value of Rs. 1000 notes = 1000 × 20
= 20 000
Total value of Rs. 500 notes = 29 300 - 800 - 20 000
= 8500
No. of Rs. 500 notes = 8500 ÷ 500
= 17
Rohit has total 17 notes of Rs.500
What is Unitary method?" Unitary method is the process of finding value of one unit using which we can find the value of other units."
According to the question,
Number of Rs.20 notes = 40
Total amount of Rs.20 = 20 × 40
= Rs.800
Number of Rs.1000 notes = 20
Total amount of Rs.1000 = 20 × 1000
= Rs.20,000
Total amount of Rs.20 and Rs.1000 notes = 20,000 +800
= Rs.20,800
Made a payment of Rs.29,300
Left amount of Rs.500 notes = 29,300 -20,800
= Rs.8500
Number of Rs.500 notes = 8500 ÷ 500
= 17 notes of Rs.500
Hence, Rohit has total 17 notes of Rs.500.
Learn more about unitary method here
https://brainly.com/question/23423168
#SPJ2
[tex] \ \sqrt{348} [/tex]
Answers
Answer:
explanation:
√348 =
18.6547581062
just need an answer and explanation please and thank you
Answers
Simplify the following expressions
a. 2/5- 1/6 b. 3/7-7/14 c. 5/8- 2/3
Answers
Multiply the denominator until both denominators are the same
12/30 - 5/30
Subtract the numerator but NOT the denominator
Final Answer: 7/30
2.) 3/7-7/14
Multiply the denominator until both denominators are the same common denominator
6/14 - 7/14
Subtract the numerator but NOT the denominator
Final Answer: -1/14
3.) 5/8-2/3
Multiply the denominator until both denominators are the same
15/24 - 16/24
Subtract the numerator but NOT the denominator
Final Answer: -1/24
Sorry if it's a bad picture I just need help asap
Answers
Answer:
y=9
Step-by-step explanation:
they grow together by the same amount
Answer:
27/2...or 13.5 as a decimal
Step-by-step explanation:
the ratio of y and x is y/x or, 9/2 with 9 being the y and 2 being the x
the X changed to 3, so y/3 is the new ratio. Since we have another ratio, we can compare them to get the y
the equation : 9/2=y/3--2x=27--
x=27/2
Over 5 hours, a bakery uses 45 sticks of butter. How
many sticks of butter will the bakery use in 4 hours?
Solve using unit rates.
Answers
Answer:
36 sticks
Step-by-step explanation:
if they use 45 in 5 hours do 45÷5=9
9×4=36
Which unit rate is equivalent to 13 miles per gallon? 1) 26 miles 2 galons 2) 2 gallons 26 miles 3) 39 miles 4 gallons 4) 4 gallons 4 39 miles please answer fast!
Answers
Answer:
1)
Step-by-step explanation:
We just need to find a rate where the ratio of miles to gallons is 13:1
This only works for 1) 26 miles 2 gallons since 26/2 = 13/1
Answer:
I think it would be the first one. 26 miles 2 gallons
Step-by-step explanation:
Every gallon would be 13 miles. If you multiply 13 by 2 and 1 gallon by 2, you'll get 26 miles 2 gallons.
pls help ill give brainly
Answers
When computing the control limits for the p-chart, what value is used when the population proportion of defective items is not known
Answers
Answer:
sample proportion of defective items
Step-by-step explanation:
The p-chart is a type of chart in which the sample is taken periodically from the production process, so as to determine if the population proportion of defective items in the sample falls within the control limits on the chart.
For a P-chart, as the sample size gets larger it turns more into a normal distribution making it possible to approximate the distribution of the proportion defective.
PLS HELP ALBEBRA 1 IN NEED OF ASSISTANCE SOLVE THIS RATIONAL EQUATION
Answers
Answer:
x=3
Step-by-step explanation:
Since both denominators are the same, you can cancel them out.
Now all you have to solve is 4x-1=11 which means x=3
please help with al parts! I will give brainliest to smartest answer!
Answers
Answer:
A: 428.75/ 24.5 = $17.50 per sq foot
B: 62.50*24.50 = $1,531.25
C: 428.75 + 1,531.25 + 137.50 = $2,097.50 for the total replacement
Step-by-step explanation:
can someone asnwer this please ;-;
In ΔJKL, \overline{JL}
JL
is extended through point L to point M, \text{m}\angle KLM = (7x+3)^{\circ}m∠KLM=(7x+3)
∘
, \text{m}\angle LJK = (2x+12)^{\circ}m∠LJK=(2x+12)
∘
, and \text{m}\angle JKL = (3x+7)^{\circ}m∠JKL=(3x+7)
∘
. Find \text{m}\angle LJK.m∠LJK
Answers
Answer:ok
Step-by-step explanation:
Answer:
28
Step-by-step explanation:
Pic’n’mix sweets cost 56p per quarter. How much would 9 ounces cost? (There are 4 ounces in a quarter.)
Answers
Answer:
126p
Step-by-step explanation:
56 divided by 4 = 14p per ounce
14 x 9 = 126p per 9 oz.
Write a fraction that is equivalent to 3/4 with a denominator of 20
Answers
Answer:
15/20
Step-by-step explanation:
1. Take the denominator of 3/4 and multiply it by 5 because that is what it takes to get 20 from 4.
4 x 5 = 20.
2. Multiply the numerator by 5 as well.
15/20
Answer:
3 / 4 = 15 / 20
Step-by-step explanation:
I think thats right
The ____________particles of an atom which are called electrons.
Answers
Answer:
Atomic Particles
The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged).
Step-by-step explanation:
Find each angle measure in the triangle.
Answers
Answer:
30, 60, 90
Step-by-step explanation:
since there are 6 x's in total, and there are a total of 180 degrees in any triangle, we do 180/6= 30
so now we know x=30, 2x=60, and 3x=90
Which of the statements is true
a. v7 is an integer
C. V25 is a rational number
b. V16 is an irrational number
d. 190 is neither rational nor irrational number
Answers
Answer:
The only valid choice is c.
Step-by-step explanation:
Rational Numbers
Rational numbers have the form a/b, where a and b are integers and b is not zero.
In other words, rationals are all numbers that can be written as a fraction.
Examples are -3/7, 11/2, 5, 0
Note the last two numbers are integers, but they are also rationals because an integer can be expressed as a fraction with a denominator of 1.
Irrational numbers are the opposite, they cannot be expressed as a fraction.
a. [tex]\sqrt{7}[/tex] is not an integer since it's irrational. False
c. [tex]\sqrt{25}[/tex] = 5 or -5. It is a rational number because it's an integer. True
b. [tex]\sqrt{16}[/tex] = 4 or -4. It is not an irrational number because it's an integer. False
d. 190 is a rational number. False
The only valid choice is c.
1 of 6
© As an estimation we are told 5 miles is 8 km.
Convert 25.9 miles to km.
Answers
Answer:
41.68201 km=25.9 miles
Step-by-step explanation:
Answer:
Step-by-step explanation:
5m=8k
25.9m = ?k
25.9/5 = 5.18
5.18 X 9 = 46.62
Therefore 25.9 miles is 46.62 km