Answer:
W
Step-by-step explanation:
The vertical line test is a simple tool to determine if a graph is a function. Draw a vertical line through the graph. If at any point where you draw this line you hit the relation twice or more you know it to not be a function. What I mean is that if you have multiple Y's for a single X, then it cant be a function.
Side note: Vertical is up and down, like the line in X.
Jessica ate 7 /10 of her orange before lunch and 1/10 of her orange after lunch. How much of her orange did she eat?
Answer:
8/10
Step-by-step explanation:
Lighthouse B is 10 miles west of lighthouse A. A boat leaves A and sails 5miles. At this time, it is sighted from B. If the bearing of the boat from B is N65E, how far from B is the boat?
The distance of B from the boat is 8.99 miles
To calculate the distance of the the boat from B we use cosine rule.
What is cosine rule?Cosine rule is a formula use to find one side of a triangle if two sides and an angle is given.
Cosine rule formula can be stated as
R² = P²+Q²-2PQcos∅.............. Equation 1From the question,
⇒ Given:
Q = 5 mileP = 10 miles∅ = 65°⇒ Substitute these values into equation 1 and solve for R
R² = 5²+10²-(2×5×10)cos65°R² = 125-(100×0.442)R² = 125-44.2R² = 80.8R = √(80.0)R = 8.99 milesHence, the distance of B from the boat is 8.99 miles.
Learn more about cosine rule here: https://brainly.com/question/23720007
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y=x+5 y=-2x-4 I need help with this problem will you help me?
Answer:
x = - 3, y = 2
Step-by-step explanation:
Given the 2 equations
y = x + 5 → (1)
y = - 2x - 4 → (2)
Substitute y = x + 5 into (2)
x + 5 = - 2x - 4 ( add 2x to both sides )
3x + 5 = - 4 ( subtract 5 from both sides )
3x = - 9 ( divide both sides by 3 )
x = - 3
Substitute x = - 3 into either of the 2 equations and evaluate for y
Substituting into (1)
y = - 3 + 5 = 2
Please I need help someone answer asap
Answer:
C -2,-1
Step-by-step explanation:
I pulled up a graph of a circle. -2, -1 is outside the circle
Find the height of the cylinder.
13 cm width
17 cm diagonally length
how much is the hight?
Answer:
The height is 0.014
Step-by-step explanation:
Use the formula, V=πr2h
h=V
πr2=13
π·172≈0.014
Suppose the function of h is defined, for all real numbers as follows: (f) x = -3 if x is <) 3 if x is =0 -2 if x is > 0
Answer:
See explanation
Step-by-step explanation:
The question is not properly presented; I will answer this with the following similar question.
[tex]h(x) = -\frac{1}{3}x^2 + 4[/tex] --- [tex]x \ne 2[/tex]
[tex]h(x) = -4[/tex] --- [tex]x= 2[/tex]
Required
[tex]h(-5)\ \&\ h(2)[/tex]
Calculating h(-5)
This implies that: x = -5
[tex]-5 \ne 2[/tex]
So, we make use of:
[tex]h(x) = -\frac{1}{3}x^2 + 4[/tex]
Substitute -5 for x
[tex]h(-5) = -\frac{1}{3} * (-5)^2 + 4[/tex]
[tex]h(-5) = -\frac{1}{3} * 25 + 4[/tex]
[tex]h(-5) = -\frac{25}{3} + 4[/tex]
Take LCM
[tex]h(-5) = \frac{-25+12}{3}[/tex]
[tex]h(-5) = -\frac{13}{3}[/tex]
Calculating h(2)
This implies that: x = 2
[tex]2 = 2[/tex]
So, we make use of:
[tex]h(x) = -4[/tex]
Substitute 2 for x
[tex]h(2) = -4[/tex]
Use the above explanation to answer your question
George has opened a new store and he is monitoring its success closely. He has found that this store’s revenue each month can be modeled by r(x)=x2+6x+10 where x represents the number of months since the store opens the doors and r(x) is measured in hundreds of dollars. He has also found that his expenses each month can be modeled by c(x)=x2−4x+5 where x represents the number of months the store has been open and c(x) is measured in hundreds of dollars. What does (r−c)(4) mean about George's new store?
Answer:
(r - c)(4), is the profit made in George's new store after 4 months which is $4,500
Step-by-step explanation:
The given parameters for George's store are;
The amount of revenue George makes each month, r(x) = x² + 6·x + 10
The expenses each month, c(x) = x² - 4·x + 5
Where;
x = The number of months the store has opened the doors
r(x) and c(x) are measured in hundreds of dollars
The amount of profit from the store, P = Revenue - Expenses
Therefore, the profit made on a given month, x, is P(x), which is found as follows;
P(x) = r(x) - c(x) = (r - c)(x)
Therefore, (r - c)(4) = P(4), is the profit realized from George's new store, after 4 months
(r - c)(4) = 4² + 6·4 + 10 - (4² - 4·4 + 5) = 45
Answer:
The new store will have a profit of $4500 after its fourth month in business.
Step-by-step explanation:
I took the quiz
If
f(x) = x2 + 2x - 4
and
g(x) = 3x + 1
Find
f(g(x)) = [? ]x2 + [ ]+х
Answer:
f(g(x)) = 9x^2 +12x -1
Step-by-step explanation:
f(g(x)) means you replace the x in f(x) with g(x), which is 3x + 1:
(3x+1)^2 + 2(3x+1) - 4
then expand and simplify:
(3x+1)(3x+1) + 6x+2 - 4
9x^2+6x+1 + 6x+2 - 4
and then collect all like terms:
9x^2
6x + 6x = 12x
1 + 2 - 4 = -1
Can someone please help me
Answer: B. 4 × 10⁻⁵
Step-by-step explanation:
0.00003762 = 3.762 × 10⁻⁵ ≈ 4 × 10⁻⁵
Answer:
b
Step-by-step explanation:
[tex]4 \times {10}^{ - 5} = 4 \times \frac{1}{100000} [/tex]
A house owner wishes to cover their roof with solar panels. Each solar panel is of the following size. The roof section is rectangular 7.2 m by 4.4 m. Each solar panel measures 1400 mm by 850 mm. There needs to be at least a 30 cm gap left at each edge of the roof section. The house owner thinks he can have at least 15 solar panels fitted to the roof section. Can u agree? If yes, show the working.
Answer:
Hello Arjun, The Answer Is 26.54 panels.
Explanation:
Dimensions of roof section: 7.2m By 4.4m
Area Of Roof: 7.2*4.4 = 31.68m²
Dimension of solar panels: 1400mm by 850mm
= 1400÷1000 by 850÷1000 = 1.4m by 0.85m
So We can say that: Area each solar panel = 1.4 * 0.85 = 1.19m²
The 30 CM Gap On All Edges Gives Us A Square Of Side = 30 Cm = 0.3 M
So, The Area Of Gap Left = 0.3*0.3 = 0.9m²
Now, The Total Area That Can Be Covered Is 31.68-0.9 = 31.59m²
So, Now we Divide The area remaining with the area of the solar panel that is: 31.59 ÷ 1.19m² = 26.54 Panels...
I Could Only Understand This Much From The HW Ma'am Gave, So This Was My Answer...
Hope It Helps!
help me thankyouuuuuuu
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⠻⢿⣿⡏⠀⠀⣶⠀⠀⢻⣿⣿⣿⣿⣿⣿⣿⣿⣿⡄⠀⠀⠀⠀⠀⠀⠀⣿⣧⣀
⠀⠀⢹⣷⡀⠀⠀⠀⢀⣿⣿⣉⡉⠉⠉⠉⠉⢙⣿⣷⣄⠀⠀⠀⠀⢀⣼⣿⠛⠓
⠀⠈⠛⠛⠛⠓⠒⠚⠛⠛⠛⠛⠛⠋⠙⠛⠛⠛⠛⠟⠿⠷⠶⠶⠾⠿⢿⠿⠿⠿ Don't mind me, just a feller out on the farm.
Answer:
210 * 1.1 = 231
48*1.1 = 52.8
Step-by-step explanation:
15 points f (x) = 1/x+5 -1. Find the inverse of (x) and its domain.
Answer:
D
Step-by-step explanation:
[tex]f(x)=\frac{1}{x+5} -1\\let~f(x)=y\\y=\frac{1}{x+5} -1\\flip~x~and~y\\x=\frac{1}{y+5} -1\\x+1=\frac{1}{y+5} \\y+5=\frac{1}{x+1} \\y=\frac{1}{x+1} -5\\f^{-1}(x)=\frac{1}{x+1} -5\\x+1\neq 0\\x\neq -1[/tex]
Sabina bought a samsung mobile set for rs.15750 after getting the discount of 10%. Find the price of mobile set before discount.
Answer:
Step-by-step explanation:
90/100 * x = 15750
0.9 x = 15750
x = 15750/0.9
x = 17500
Now check this by taking 10% off. Do you get 15750?
Let's see
10/100 of 17500 = 1750
Subtract that from 17500
17500 - 1750 = 15750 which is exactly what you should get.
Find the discernment and the numbers of the number of real roots for this equation.
x^2+3x+8=0
Answer: 2 distinct complex solutions (ie non real solutions).
Work Shown:
The given equation is in the form ax^2+bx+c = 0, so
a = 1, b = 3, c = 8
Plug those into the formula below to find the discriminant
D = b^2 - 4ac
D = 3^2 - 4(1)(8)
D = -23
The discriminant is negative, so we get two nonreal solutions. The two solutions are complex numbers in the form a+bi, where a & b are real numbers and [tex]i = \sqrt{-1}[/tex]. The two solutions are different from one another.
Answer:
Discriminant: -23
Number of real roots: 0
Step-by-step explanation:
For a quadratic in standard form [tex]ax^2+bx+c[/tex], the discriminant is given by [tex]b^2-4ac[/tex].
In [tex]x^2+3x+8[/tex], assign:
[tex]a\implies 1[/tex] [tex]b\implies 3[/tex] [tex]c\implies 8[/tex]The discriminant is therefore:
[tex]3^2-4(1)(8)=9-32=\boxed{-23}[/tex]
For any quadratic:
If the discriminant is greater than 0, the quadratic has two real rootsIf the discriminant is equal to 0, the quadratic has one real rootIf the discriminant is less than 0, the quadratic as no real rootsSince the quadratic in the question has a discriminant less than 0, there are no real solutions to this quadratic.
WILL GIVE BRAINLIEST, HELP QUICK!!
Answer:
the answer is 5 units
Step-by-step explanation:
You can look at the location of B and C and see that the line goes from 2 to -2 which is 5 units apart. -2, -1, 0, 1, 2
Complete this equations,( show your work).
* I re-wrote some of the questions below them so u can read ' em better. ty
Answer:
21 is: [tex]\frac{4}{9}[/tex] x + [tex]\frac{31}{72}[/tex]
22 is: 4 [tex]\frac{39}{44}[/tex]
23 is:[tex]\frac{1}{4}[/tex] x + [tex]\frac{31}{72}[/tex]
24 is: [tex]\frac{-2}{11}[/tex] x + [tex]\frac{7}{11}[/tex]
Step-by-step explanation: Hope this helps and good luck mark brainliest if u want :)
9 is subtracted from 5 times 3 and 10 is added
A chair which was produced at a cost of Rs 450 was sold at a profit of 22%. What was the profit?
Answer:
RS 99
Step-by-step explanation:
%p = p/cp ×100
22 = p/450 × 100
22 = 100p/450
cross multiply
22 × 450 =100p
9900 = 100p
100p =9900
p = 9900/100
p = 99
Please help me Find PA.
Need help with this!!! 8 points!!!
Answer:
The answers is 369 and 577... good luck. ♥️♥️♥️
Given: -1/2 x > 6.
Choose the solution set.
A. {x | x R, x > -12}
B. {x | x R, x > -3}
C. {x | x R, x < -3}
D. {x | x R, x < -12}
Given: -1/2 x > 6
Solving It:--1/2 x > 6
x > -6×2
x > -12
So The Correct Solution Set Will Be
A. {x | x R, x > -12}Hope This Helps YouFind the area to the left of z = 0.25.
A. 0.6012 B. 0.5987 C. 0.4013 D.0.3988
Answer:
.5987
Step-by-step explanation:
Use a ztable and find .25 (pic below)
The bar chart gives information about the numbers of students in the 4 classes of year 11 in a school. There are 65 year 11 students in total. Work out what percentage of year 11 students are in class 11A?
Answer:
40%
Step-by-step explanation:
11A girls+boys / total number of students * 100
(14+12)/(65)*100
=26/65 * 100
=40%
I WILL GIVE BRAINLISEST AND 40 pOINTS PLEASE HELP!
Determine the surface area of the square based pyramid. Round to the tenths place. 37 cm is the vertical height of the pyramid.
Answer:
SA= 3603.84cm^2
Step-by-step explanation:
the Surface Area SA is the total area of the sides and the base.
The area of the base= 32*32= 1024cm^2
the area of one of the sides = slant height of pyramid * base edge/2
the slant height l of the pyramid
l= sqrt(16^2+37^2) = 40.31cm
area of the side =( 40.31*32)/2 =644.96cm^2
there are 4 sides so the area of the sides are
4* 644.96=
addig the area of the base we get the Surface Area SA of the pyramid
SA = 2579.84 + 1024 = 3603.84cm^2
I will give brainliest if correct!!! Please show work so I know how to do it. :)
12. Let logb(3) = 0.5646, logb(4) = 0.7124, and logb(5) = 0.8271. Using these values, evaluate logb(5/3).
A. 0.1518
B. 1.4649
C. 1.2138
D. 0.2625
E. 0.5341
F. 2.6252
Answer:
.2625
Step-by-step explanation:
logb(3) = 0.5646, logb(4) = 0.7124, and logb(5) = 0.8271
logb(5/3)
We know that logx ( y/z) = logx (y) - logz (z)
logb ( 5) - logb(3)
0.8271 - 0.5646
.2625
Answer:
F. 2.6252
Step-by-step explanation:
0.8271 - 0.5646
1,4,9 find the fifth pattern
Answer:
1, 4, 9, 16, 25
Step-by-step explanation:
The pattern increases by an odd number. It can be seen that;
n²
for the first pattern
1²=1
for the second pattern
2²=4
for the third pattern
3²=9
for the forth pattern
4²=16
for the fifth pattern
5²=25
please help me on this, thank you
Answer:
the formula
Step-by-step explanation:
substitute the formula with the numbers give n-2 is number of sides -2 fyi
help please like PLEASE ASAP
Answer:
1/5^5
Step-by-step explanation:
Flip the equation into a fraction.
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Karina solves the system using linear combination and arrives at the question 116y=96.28. She then solves this equation for y. Which statement explains karina's solution
Answer:
116y = 96.28
---- ---------
116 116
y = 0.83--------
Answer:
0.83-------
Step-by-step explanation:
2
Type the correct answer in each box. Use numerals instead of words.
The domain of this function is {-12, -6, 3, 15).
y =
ir +7
Complete the table based on the given domain.
х
у
-6
5
15
15
Reset
Next
Answer:
the first one x is 6 and y is 11
the second one y is 5 and x is 3
the third one x is 15 and y is 17
the fourth one y is 15 and x is -12
Step-by-step explanation:
to find the first answer you have to use the actual equation given and substitute the value of x in it
y=-2(-6)/3+7
=12/3+7
=4+7
=11
the second one is quite different because the value of y has been given and not x so you have to substitute the value of y in the equation which is 5
5=-2x/3+7
5-7=-2x/3
-2/1=-2x/3
-2x/-2=-6/-2
x=3
for the third one you have to solve it like the first one
y=-2(15)/3+7
=10+7
=17
the fourth one is similar to the second one
15=-2x/3+7
15-7=2x/3
8=2x/3
-2x/-2=24/-2
x=-12
I hope this helps
